STMICROELECTRONICS STV228X

STV224XH/228XH/223XH
I²C BUS-CONTROLLED MULTISTANDARD
SINGLE CHIP TV PROCESSOR
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I²C Bus Control
PIF Circuit with PLL Demodulation
(Positive and Negative Video)
SIF Circuit with QSS Structure, FM
Demodulation and AM Demodulation for France
Intercarrier Capability
Built-in Sound Bandpass
Sound Subcarrier Output for Stereo Chassis
(FM, NICAM)
Audio FM wide mode
Audio Switch and Volume Control (Mono
Chassis)
AVL (Automatic Volume Levelling)
Integrated Chroma Filters and Luma Delay Line
Integrated Chroma Delay Line
Video Switch (3 CVBS In, 2 CVBS Out)
SVHS Switch (Y Combined with CVBS3 Input)
OSD RGB Inputs
External RGB/YCrCb Inputs or YUV Interface
PAL / SECAM / NTSC Chroma Demodulators
Auto Flesh Control Capability in NTSC mode
South America Capability (PAL-M / PAL-N /
NTSC)
Chroma Subcarrier Output
Black Stretch Circuit
Peaking Circuit
Automatic Cut-off Current Loop
Manual Cut-off possible for low-cost
applications
Two Horizontal Deflection PLLs
Vertical Countdown
Half Contrast
APR (Automatic RGB Peak Regulation) or RGB
Peak Limitation Function
White Insertion
Copy Protection mode
Wide Line Blanking mode
SAW Filter Switch Control (TQFP64 package
only)
Very Few External Components
April 2004
SHRINK56
(Plastic Package)
ORDER CODE: STV224XH/8XH
TQFP64 (14 x 14 x 1.4 mm)
(Full Thin Plastic Quad Flat Pack)
ORDER CODE: STV223XH
1/86
1
STV224XH/228XH/223XH
1 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 PIN DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 MAIN FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3 FUNCTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1 DETAILED FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.1 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2 Picture Intermediate Frequency (PIF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3 Sound Intermediate Frequency (SIF) and Sound Demodulators . . . . . . . . . . . . . . .
3.1.4 Audio Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.5 Surface Acoustic Wave (SAW) Filter Switch Control . . . . . . . . . . . . . . . . . . . . . . . .
3.1.6 Video Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 DEFLECTION PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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3.2.1 Synchronization Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.2 Two Phase-Locked Loops (PLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.3 Video Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.4 Vertical Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.5 Vertical Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.6 Vertical Oversize Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.7 Vertical Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.8 Vertical Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.9 Horizontal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.10Horizontal Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.11Combined Line Flyback / Super-Sandcastle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.12Line Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.13Copy Protection Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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3.3.1 Integrated Trap Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.2 Integrated Chroma Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.3 Integrated Bell Filter for SECAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.4 Integrated Luma Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.5 Filter Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 VIDEO CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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3.4.1 RGB Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.2 YCrCb Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.3 Half-Contrast Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.4 YUV to RGB Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.5 Automatic Cut-off Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.6 Warm-up Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.7 Beam Current Limiter DC Voltage Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.8 Drive (RGB gain) and DC Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.9 Bus-controlled Contrast & Saturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.10Bus-controlled Brightness & Sharpness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.11Bus-controlled Coring on Sharpness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.12Black Stretch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.13Bus-controlled Blue Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.14White Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.15Automatic RGB Peak Regulation (APR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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2/86
1
STV224XH/228XH/223XH
3.4.16RGB Peak Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.5 CHROMA CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.5.1 PAL/SECAM/NTSC Decoders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.2 PAL/NTSC Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.3 SECAM Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.4 Chroma Standard Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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4.2 THERMAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3 SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.4 IF SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4.1 PIF Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2 PIFAGC Negative Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.3 PIFAGC Positive Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.4 Tuner AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.5 Synchronous Video Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.6 Demodulated Video Output (INTCVBSOUT Pin) . . . . . . . . . . . . . . . . . . . . . . . .
4.4.7 SIF Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.8 SIF AGC (FM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.9 SIF AGC (AM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.10FM Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.11De-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.12AM Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.13SIF Output (AM/FM or Sound Subcarriers Output) . . . . . . . . . . . . . . . . . . . . . . .
4.4.14SAW Filter Switch Output (TQFP64 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.15External Audio Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.16Main Audio Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.17AVL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 CVBS, Y/C, RGB INPUTS AND CVBS OUTPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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4.5.1 Luminance & CVBS Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5.2 Combined Chrominance & SVHS Selection Input . . . . . . . . . . . . . . . . . . . . . . .
4.5.3 CVBS1 Output (Pin 29 - SDIP56) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5.4 CVBS2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5.5 OSD RGB Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5.6 FBOSD/HC Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5.7 External RGB/YCrCb Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5.8 External Fast Blanking Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6 LUMA PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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4.6.1 Y Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6.2 Peaking Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6.3 Black Stretch Control (Pin BS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6.4 Y Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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4.7.1 Y Trap Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7.2 Chrominance Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7.3 Bell Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8 CHROMA PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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4.8.1 ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.2 ACC Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.3 Killer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.4 Chroma PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.5 PLL Loop Filter (PAL/NTSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.6 Hue Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.7 Automatic Flesh Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.8 Color Demodulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.9 Chroma Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.10Chroma Reference Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9 SCANNING PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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4.9.1 Synchronization Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.2 Horizontal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.3 First Loop Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.4 Second Loop Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.5 Line Flyback Input/Super-Sandcastle Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.6 Horizontal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.7 Vertical Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.8 Vertical Amplitude Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.9 Crystal Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10 RGB CONTROL PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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4.10.1Y Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.2U & V Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.3Contrast Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.4Saturation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.5Brightness Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.6RGB Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.7Drive Adjustment (White Point Adjustment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.8Cut-Off Adjustment (Black Point Adjustment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.9Cathode Current Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.10Beam Current Limiter Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10.11Automatic RGB Peak Regulation (APR) / RGB Peak Limitation . . . . . . . . . . . . . .
4.10.12RGB Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.11 I²C BUS CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38
38
38
38
39
39
39
39
39
39
40
41
43
4.11.1SCL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.11.2SDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.11.3I²C Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 I²C BUS SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 I²C BUS SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 SUMMARY INPUT SIGNALS (WRITE MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43
43
43
44
45
45
6.2 SUMMARY OUTPUT SIGNALS (READ MODE)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.3 INPUT SIGNALS (WRITE MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
PIFVCO Free Running . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PIF Free Running Coarse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PIF Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tuner Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIF Features and Audio Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Video Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47
47
47
48
48
49
4/86
STV224XH/228XH/223XH
6.3.7 Chroma Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3.8 Scanning Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3.9 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4 OUTPUT SIGNALS (READ MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51
52
53
54
6.5 POWER-ON RESET - INITIAL BUS REGISTER CONDITIONS . . . . . . . . . . . . . . . . . . . . 56
7 I²C BUS SPECIFICATION COMPATIBILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 INPUT/OUTPUT SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 APPLICATION DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 SUMMARY OF CHANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 GENERAL PACKAGE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.1 PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5/86
57
58
79
83
84
85
85
STV224XH/228XH/223XH - GENERAL DESCRIPTION
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The STV224XH/228XH/223XH are fully bus-controlled ICs for TV that include PIF, SIF, Luma, Chroma
and Deflection processing functions. Used with a vertical frame booster (TDA8174A for a 90° chassis,
STV9306 for a 110° chassis), they allow multistandard (BGDKIMNLL’, PAL/SECAM/NTSC) sets to be designed with very few external components and no manual adjustments.
Package
PAL/NTSC
Intercarrier
SHRINK56
TQFP64
STV2246H/86H
STV2236H
Function
PAL/SECAM/NTSC
PAL/NTSC
QSS/Intercarrier
Intercarrier Only
AM
Audio FM Wide mode with QSS Application
1 EXT RGB Input (OSD)
OSD RGB Inputs & RGBEXT/YCrCb Inputs
Application
PAL/SECAM/NTSC
QSS/Intercarrier
AM
STV2247H
STV2248H
STV2237H
STV2238H
PAL/NTSC
QSS/Intercarrier
2246H/36H
2286H
X
X
X
X
PAL/SECAM/NTSC
QSS/Intercarrier
STV2249H
STV2239H
2247H/37H 2248H/38H 2249H/39H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1.2 PIN DESCRIPTION
Table 1. Pin Configuration
PIN
STV224XH/228XH
SDIP56
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
STV223XH
TQFP64
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Symbol
SIFIN1
SIFIN2
AGCSIFCAP
VREFIF
AGCPIFCAP
PIFIN1
PIFIN2
SAW
TUNERAGCOUT
IFPLL
GNDIF
AM/FMOUT/SC
VCCIF
INTCVBSOUT
EXTAUDIOIN
PIFLC1
PIFLC2
VCC2
CVBSIN1
Description
SIF Input (Please refer to Note 1)
SIF Input (Please refer to Note 1)
AGC SIF Capacitor (Please refer to Note 1)
Voltage Reference Filtering
AGC PIF Capacitor
PIF Input
PIF Input
Filter Switch Control
AGC Tuner Output
IF PLL Filter
IF Ground
AM/FM Mono Sound or Stereo Carriers Output
5 V IF Supply
Internal CVBS Output
External Audio Input
LC Input
LC Input
Video/Luma Supply Voltage (8 V)
Internal Video Input
6/86
2
STV224XH/228XH/223XH - GENERAL DESCRIPTION
PIN
STV224XH/228XH
SDIP56
19
20
21
22
23
24
7/86
2
STV223XH
TQFP64
27
28
29
34
35
36
Symbol
GND2
CVBSIN2
BS
Y/CVBSIN3
CHR
APR
25
37
BEXT/Cb
26
38
GEXT/Y
27
39
REXT/Cr
28
40
FBEXT
29
41
NTBC/CVBSOUT1
30
31
32
33
34
35
36
37
38
39
40
41
43
44
45
46
47
48
49
50
52
53
54
55
BOUT
GOUT
ROUT
ICATH
BOSD
GOSD
ROSD
FBOSD/HC
XTAL3/BTUN
XTAL2
XTAL1
CLPF
42
56
X1/VAMP/CHROUT
43
44
45
57
58
59
GND1
CVBSOUT2
VCC1
46
61
BCL/SAF
47
48
62
63
VERT
HOUT
49
64
LFB/SSC
50
51
52
53
54
55
56
-
1
2
3
4
5
6
7
30
SLPF
SCL
SDA
VCCD
GNDD
AUDIOOUT
FMCAP
NC
Description
Video/Luma Ground
External Video Input
Black Stretch Capacitor
Y(SVHS) or CVBS3 External Input
Chroma (SVHS) Input
Automatic RGB Peak Regulation
External Blue Input or external Cb Input
(Please refer to Note 2)
External Green Input or external Y Input
(Please refer to Note 2)
External Red Input or external Cr Input
(Please refer to Note 2)
External Fast Blanking Input (Please refer to
Note 3)
Not To Be Connected or CVBS Output 1
(Please refer to Note 4)
Blue Output
Green Output
Red Output
Cathode Current Measurement Input
OSD Blue Input
OSD Green Input
OSD Red Input
OSD Fast Blanking Input / Half Contrast
3.5X MHz Crystal or Bell Filter Tuning Capacitor
3.5X MHz Crystal
4.43/3.5X MHz Crystal
Chroma PLL Filter
XTAL1 Control Pin, Vertical Amplitude DAC
Output and Chroma Reference Signal Output
Chroma/Scanning Ground
Second Video Switch Output
Chroma/Scanning Power Supply (8 V)
Beam Current Limiter Control Voltage and Safety Input (XRAY)
Vertical Output Pulse
Horizontal Output Pulse
Line Flyback Input and Super-Sandcastle Output
Scanning PLL Filter
I²C Bus Clock Input
I²C Bus Data Input
Digital Supply Voltage (5 V)
Digital Ground
Main Audio Output
FM Demodulation Capacitor
Connection to GND recommended
STV224XH/228XH/223XH - GENERAL DESCRIPTION
PIN
STV224XH/228XH
SDIP56
-
STV223XH
TQFP64
31
32
33
42
51
60
Symbol
Description
NC
NC
NC
NC
NC
NC
Connection to GND recommended
Connection to GND recommended
Connection to GND recommended
Connection to GND recommended
Connection to GND recommended
Connection to GND recommended
Note 1: Input/Output not available in STV2246H/86H versions. This pin must not be connected.
Note 2: When REXT, GEXT and BEXT pins are not used, they must not be connected. Register 0Ah must be set (d7 and
d6 = 01). (RGB external inputs disabled.)
Note 3: FBEXT to be connected to ground when not used.
Note 4: CVBS output 1 on pin 29 (SDIP56), if register 1Dh = 07h.
Figure 1. STV224XH/228XH Pinout (SDIP56)
SIFIN1
1
56
FMCAP
SIFIN2
2
55
AUDIOOUT
AGCSIFCAP
3
54
GNDD
VREFIF
4
53
VCCD
AGCPIFCAP
5
52
SDA
PIFIN1
6
51
SCL
PIFIN2
7
50
SLPF
TUNERAGCOUT
8
49
LFB/SSC
IFPLL
9
48
HOUT
GNDIF
10
47
VERT
AM/FMOUT/SC
11
46
BCL/SAF
VCCIF
12
45
VCC1
INTCVBSOUT
13
44
CVBSOUT2
EXTAUDIOIN
14
43
PIFLC1
15
42
PIFLC2
16
41
CLPF
VCC2
17
40
XTAL1
CVBSIN1
18
39
GND2
19
38
XTAL3/BTUN
CVBSIN2
20
37
FBOSD/HC
BS
21
36
ROSD
Y/CVBSIN3
22
35
GOSD
CHR
23
34
BOSD
APR
24
33
I CATH
BEXT/Cb
25
32
ROUT
GEXT/Y
26
31
GOUT
REXT/Cr
27
30
BOUT
FBEXT
28
29
NTBC/CVBSOUT1
GND1
X1/VAMP/CHROUT
XTAL2
Note: Underlined pin functions are optional.
8/86
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 2. STV223Xh Pinout (TQFP64)
IFPLL
GNDIF
AM/FMOUT/SC
VCCIF
INTCVBSOUT
EXTAUDIOIN
PIFLC1
PIFLC2
VCC2
GND2
CVBSIN1
CVBSIN2
BS
NC
NC
NC
NC
TUNERAGCOUT
Y/CVBSIN3
SAW
CHR
PIFIN2
APR
PIFIN1
BEXT/Cb
AGCPIFCAP
VREFIF
GEXT/Y
AGCSIFCAP
REXT/Cr
FBEXT
NTBC/CVBSOUT1
SIFIN2
SIFIN1
NC
FMCAP
BOUT
AUDIOOUT
GOUT
GNDD
ROUT
I CATH
VCCD
BOSD
SCL
GOSD
SLPF
SDA
LFB/SSC
HOUT
VERT
BCL/SAF
NC
VCC1
CVBSOUT2
GND1
X1/VAMP/CHROUT
CLPF
XTAL1
XTAL2
XTAL3/BTUN
NC
FBOSD/HC
ROSD
9/86
GND2 19
V CC2 17
GND1 43
V CC1 45
GNDIF 10
V CCIF 12
GNDD 54
VCCD 53
NTBC 3
NTBC 2
NTBC 1
TUNERAGCOUT 8
14
55
4
VOLUME
AUDIOOUT
V REF
51
AUDIO
REF
AVL
FM Mono
Mute
DEEMP.
SOUND BP
FM DEMOD
EXTAUDIOIN
SCL
52
I²C BUS
DECODER
TUNER AGC
PIFLC1
AGC
IFPLL
AGCPIFCAP 5
INTCVBSOUT
W/B SPOT
INVERTER
CVBSIN1
18
44
29
39
38
3
49
50
VAMP DC
CONTROL
42
HORIZONTAL
2nd LOOP
VERTICAL
SCANNING
HORIZONTAL
1st LOOP
SYNC.
SEP
ICATH SENSE
BCL/SAF
RGB
CONTRAST
APR
HALF
CONTRAST
RGB
TO YUV
27
SLPF
X1/VAMP/CHROUT
41
CHROMA
DL
BRIGHT.
DRIVE
CUT-OFF
BLANKING
RGB
SWITCH
SAT./CONT
MATRIX
YUV
SWITCH
26
25
28
LFB/SSC
CLPF
40
AUTO IDENT.
KILLER
PAL/NTSC
DEMODULATOR
BANDPASS
FILTER
ACC & ACC
OVERLOAD
FILTER
TUNING
CHROMA
TRAP
LUMA DL
PEAKING
& CORING
BLACK
STRETCH
21
XTAL2
XTAL3
11
Mute
CVBSOUT2
NTBC/CVBSOUT1
PIFIN2 7
20
22
CHR
FMCAP
56 23
FBEXT
AFC
CVBSIN2
Y/CVBSIN3
13
BS
9
BEXT/Cb
PIFIN1 6
16
GEXT/Y
PLL
PIFLC2
15
REXT/Cr
STV2246H
48 HOUT
47 VERT
30 BOUT
31 GOUT
32 ROUT
33 ICATH
46 BCL/SAF
34 BOSD
35 GOSD
36 ROSD
37 FBOSD/HC
24 APR
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 3. STV2246H (SDIP56) Block Diagram
XTAL1
FMOUT
SDA
10/86
11/86
V CC1 45
GND2 19
V CC2 17
GND1 43
11
14
EXTAUDIOIN
55
AUDIOOUT
4
VOLUME
AVL
FMOUT/SC
V REF
51
AUDIO
REF
Mute
DEEMP.
FM Mono
SCL
52
I²C BUS
DECODER
AGC
PLL Reference
Carrier
44
29
Mute
Sound Subcarriers
GNDIF 10
V CCIF 12
GNDD 54
V CCD 53
AGCSIFCAP 3
SIFIN2 2
PIFLC1
SIFIN1 1
IFPLL
SOUND BP
FM DEMOD
INTCVBSOUT
TUNER AGC
18
CVBSIN2
TUNERAGCOUT 8
CVBSIN1
20
NTBC/CVBSOUT1
AGC
CHR
22
Y/CVBSIN3
23
CVBSOUT2
W/B SPOT
INVERTER
56
41
CLPF
40
XTAL1
39
XTAL2
38
AUTO IDENT.
KILLER
PAL/NTSC
DEMODULATOR
BANDPASS
FILTER
ACC & ACC
OVERLOAD
FILTER
TUNING
CHROMA
TRAP
LUMMA DL
PEAKING
& CORING
BLACK
STRETCH
21
3
49
50
VAMP DC
CONTROL
HORIZONTAL
2nd LOOP
VERTICAL
SCANNING
HORIZONTAL
1st LOOP
SYNC.
SEP
ICATH SENSE
BCL/SAF
RGB
CONTRAST
APR
HALF
CONTRAST
LFB/SSC
SLPF
42
CHROMA
DL
BRIGHT.
DRIVE
CUT-OFF
BLANKING
RGB
SWITCH
SAT./CONT
MATRIX
27
RGB
TO YUV
28
YUV
SWITCH
26
25
FBEXT
AFC
FMCAP
13
BS
9
BEXT/Cb
AGCPIFCAP 5
16
GEXT/Y
PLL
PIFLC2
15
REXT/Cr
PIFIN2 7
PIFIN1 6
STV2247H
48 HOUT
47 VERT
30 BOUT
31 GOUT
32 ROUT
33 ICATH
46 BCL/SAF
34 BOSD
35 GOSD
36 ROSD
37 FBOSD/HC
24 APR
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 4. STV2247H (SDIP56) Block Diagram
X1/VAMP/CHROUT
XTAL3
SDA
GND2 19
V CC2 17
GND1 43
4
V REF
51
AUDIO
REF
21
3
49
50
42
39 40 41
VAMP DC
CONTROL
HORIZONTAL
2nd LOOP
VERTICAL
SCANNING
HORIZONTAL
1st LOOP
SYNC.
SEP
I CATH SENSE
BCL/SAF
RGB
CONTRAST
APR
HALF
CONTRAST
RGB
TO YUV
27
CLPF
38
CHROMA
DL
BRIGHT.
DRIVE
CUTOGG
BLANKING
RGB
SWITCH
SAT./CONT
MATRIX
YUV
SWITCH
26
25
28
X1/VAMP/CHROUT
XTAL3/BTUN
11
AUTO IDENT.
KILLER
PAL/SECAM/NTSC
DEMODULATOR
BANDPASS
FILTER
ACC & ACC
OVERLOAD
FILTER
TUNING
CHROMA
TRAP
LUMA DL
PEAKING
& CORING
BLACK
STRETCH
SLPF
AM/FMOUT/SC
14
AVL
BELL
FILTER
44
29
BELL
TUNING
Mute
18
LFB/SSC
EXTAUDIOIN
55
VOLUME
Mute
AM
Mono
DEEMP.
FM Mono
SCL
52
I²C BUS
DECODER
AGC
LIMITER
SOUND BP
FM DEMOD
20
Sound Subcarrier
V CC1 45
GNDIF 10
V CCIF 12
GNDD 54
V CCD 53
AGCSIFCAP 3
SIFIN2 2
SIFIN1 1
TUNER AGC
PIFLC1
TUNERAGCOUT 8
PIFLC2
PLL Reference
Carrier
INTCVBSOUT
AGC
CHR
AGCPIFCAP 5
Y/CVBSIN3
22
CVBSIN2
23
CVBSIN1
W/B SPOT
INVERTER
56
FBEXT
PIFIN2 7
FMCAP
13
CVBSOUT2
NTBC/CVBSOUT1
AFC
9
BEXT/Cb
PIFIN1 6
IFPLL
16
GEXT/Y
PLL
BS
15
REXT/Cr
STV2248H
48 HOUT
47 VERT
30 BOUT
31 GOUT
32 ROUT
33 ICATH
46 BCL/SAF
34 BOSD
35 GOSD
36 ROSD
37 FBOSD/HC
24 APR
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 5. STV2248H (SDIP56) Block Diagram
AUDIOOUT
XTAL2
XTAL1
SDA
12/86
13/86
GND2 19
VCC2 17
GND1 43
4
V REF
51
AUDIO
REF
21
39
38
3
49
50
X1/VAMP/CHROUT
41
VAMP DC
CONTROL
HORIZONTAL
2nd LOOP
VERTICAL
SCANNING
HORIZONTAL
1st LOOP
SYNC.
SEP
ICATH SENSE
BCL/SAF
RGB
CONTRAST
APR
HALF
CONTRAST
RGB
TO YUV
27
SLPF
CLPF
40
CHROMA
DL
BRIGHT.
DRIVE
CUT-OFF
BLANKING
SWITCH
RGB
SAT./CONT
MATRIX
YUV
SWITCH
26
25
28
LFB/SSC
42
AUTO IDENT.
KILLER
PAL/SECAM/NTSC
DEMODULATOR
BANDPASS
FILTER
ACC & ACC
OVERLOAD
FILTER
TUNING
CHROMA
TRAP
LUMA DL
PEAKING
& CORING
BLACK
STRETCH
11
BELL
TUNING
44
XTAL3/BTUN
FMOUT/SC
14
AVL
Mute
BELL
FILTER
29
XTAL2
EXTAUDIOIN
55
VOLUME
Mute
FM
Mono
SCL
52
I²C BUS
DECODER
AGC
DEEMP.
Sound Subcarrier
VCC1 45
GNDIF 10
V CCIF 12
GNDD 54
V CCD 53
AGCSIFCAP 3
SIFIN2 2
PIFLC1
SIFIN1 1
IFPLL
PLL Reference
Carrier
INTCVBSOUT
TUNER AGC
Y/CVBSIN3
TUNERAGCOUT 8
18
CVBSIN2
20
NTBC/CVBSOUT1
SOUND BP
FM DEMOD
CVBSIN1
22
CVBSOUT2
W/B SPOT
INVERTER
23
FMCAP
56
FBEXT
AFC
CHR
13
BS
9
BEXT/Cb
AGC
16
GEXT/Y
AGCPIFCAP 5
PIFLC2
15
REXT/Cr
PIFIN2 7
PIFIN1 6
STV2249H
48 HOUT
47 VERT
30 BOUT
31 GOUT
32 ROUT
33 I CATH
46 BCL/SAF
34 BOSD
35 GOSD
36 ROSD
37 FBOSD/HC
24 APR
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 6. STV2249H (SDIP56) Block Diagram
XTAL1
AUDIOOUT
SDA
GND2 19
VCC2 17
GND1 43
VCC1 45
GNDIF 10
V CCIF 12
GNDD 54
V CCD 53
NTBC 3
NTBC 2
NTBC 1
4
51
AUDIO
REF
V REF
SCL
52
I²C BUS
DECODER
TUNER AGC
PIFLC1
TUNERAGCOUT 8
VOLUME
Mute
DEEMP.
SOUND BP
FM DEMOD
IFPLL
W/B SPOT
INVERTER
CHR
AGC
FMCAP
AGCPIFCAP 5
AVL
18
Mute
29 44
BLACK
STRETCH
21
49
50
42
HORIZONTAL
2nd LOOP
X1/VAMP/CHROUT
41
VAMP DC
CONTROL
ICATH SENSE
BCL/SAF
RGB
CONTRAST
APR
VERTICAL
SCANNING
HORIZONTAL
1st LOOP
SYNC.
SEP
3
HALF
CONTRAST
25 26 27
SLPF
CLPF
40
CHROMA
DL
BRIGHT.
DRIVE
CUT-OFF
BLANKING
RGB
SWITCH
SAT./CONT
MATRIX
28
LFB/SSC
XTAL1
39
AUTO IDENT.
KILLER
PAL/NTSC
DEMODULATOR
BANDPASS
FILTER
ACC & ACC
OVERLOAD
FILTER
TUNING
CHROMA
TRAP
LUMA DL
PEAKING
& CORING
38
20
11
FM Mono
XTAL3
FMOUT
14
CVBSIN2
Y/CVBSIN3
22
CVBSIN1
23
NTBC/CVBSOUT1
56
CVBSOUT2
PIFIN2 7
13
BS
AFC
INTCVBSOUT
9
NTBC
PIFIN1 6
16
NTBC
PLL
PIFLC2
15
NTBC
STV2286H
48 HOUT
47 VERT
30 BOUT
31 GOUT
32 ROUT
33 ICATH
46 BCL/SAF
34 BOSD
35 GOSD
36 ROSD
37 FBOSD/HC
24 APR
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 7. STV2286H (SDIP56) Block Diagram
XTAL2
EXTAUDIOIN
AUDIOOUT
SDA
14/86
4
15/86
GND2 27
V CC2 25
GND1 57
V CC1 59
GNDIF 18
VCCIF 20
SAW 15
NTBC 10
NTBC 9
NTBC 8
64
1
56
53 54 55
52
19
63 HOUT
62 VERT
43 BOUT
44 GOUT
45 ROUT
46 ICATH
61 BCL/SAF
47 BOSD
48 GOSD
49 ROSD
50 FBOSD/HC
36 APR
STV2236H
HORIZONTAL
2nd LOOP
22
VAMP DC
CONTROL
ICATH SENSE
BCL/SAF
VERTICAL
SCANNING
HORIZONTAL
1st LOOP
SYNC.
SEP
APR
RGB
CONTRAST
HALF CTR
RGB
TO YUV
FMOUT
EXTAUDIOIN
6
AUTO IDENT.
KILLER
PAL/NTSC
DEMODULATOR
CHROMA
DL
BRIGHT.
DRIVE
CUT-OFF
BLANKING
RGB
SWITCH
SAT./CONT
MATRIX
YUV
SWITCH
39 38 37
40
XTAL3
AUDIOOUT
11
Mute
BANDPASS
FILTER
ACC & ACC
OVERLOAD
FILTER
TUNING
CHROMA
TRAP
LUMA DL
PEAKING
& CORING
BLACK
STRETCH
29
CLPF
V REFIF
2
AVL
FM Mono
58
X1/VAMP/CHROUT
VOLUME
Mute
DEEMP.
SOUND BP
FM DEMOD
26
LFB/SSC
SLPF
AUDIO
REF
I²C BUS
DECODER
SAW FILTER
SWITCH CONTROL
PIFLC1
TUNER AGC
IFPLL
TUNERAGOUT 16
AGC
41
CVBSIN1
AGCPIFCAP 12
CHR
28
CVBSOUT1
W/B SPOT
INVERTER
FMCAP
34
CVBSIN2
35
Y/CVBSIN3
7
CVBSOUT2
PIFIN2 14
21
BS
AFC
INTCVBSOUT
17
FBEXT
PLL
24
GEXT/Y
REXT/Cr
PIFIN1 13
PIFLC2
23
BEXT/Cb
GNDD 5
V CCD
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 8. STV2236H (TQFP64) Block Diagram
SCL
XTAL1
XTAL2
SDA
GND2 27
V CC2 25
64
1
56
52 53 54 55
19
VAMP DC
CONTROL
APR
63 HOUT
62 VERT
43 BOUT
44 GOUT
45 ROUT
46 ICATH
61 BCL/SAF
47 BOSD
48 GOSD
49 ROSD
50 FBOSD/HC
36
STV2237H
HORIZONTAL
2nd LOOP
VERTICAL
SCANNING
HORIZONTAL
1st LOOP
SYNC.
SEP
APR
ICATH SENSE
BCL/SAF
CONTRAST
RGB
HALF CTR
RGB
TO YUV
22
CHROMA
DL
BRIGHT.
DRIVE
CUT-OFF
BLANKING
RGB
SWITCH
SAT./CONT
MATRIX
YUV
SWITCH
39 38 37
40
FMOUT/SC
EXTAUDIOIN
6
AUTO IDENT.
KILLER
PAL/NTSC
DEMODULATOR
BANDPASS
FILTER
ACC & ACC
OVERLOAD
FILTER
TUNING
CHROMA
TRAP
LUMA DL
PEAKING
& CORING
BLACK
STRETCH
29
CLPF
AUDIOOUT
11
Mute
58
41
X1/VAMP/CHROUT
V REFIF
2
VOLUME
AUDIO
REF
DEEMP.
FM Mono
LFB/SSC
SLPF
SCL
3
I²C BUS
DECODER
AVL
SOUND BP
FM DEMOD
Mute
INTCVBSOUT
GND1 57
PLL Reference
Carrier
SAW FILTER
SWITCH CONTROL
AGC
TUNER AGC
Sound Subcarriers
V CC1 59
GNDIF 18
VCCIF 20
SAW 15
AGCSIFCAP 10
SIFIN2 9
SIFIN1 8
TUNERAGCOUT 16
PIFLC1
AGC
IFPLL
AGCPIFCAP 12
CHR
W/B SPOT
INVERTER
FMCAP
PIFIN2 14
CVBSIN2
AFC
CVBSOUT2
CVBSOUT1
GNDD 5
Y/CVBSIN3
34 28 26
CVBSIN1
7 35
BS
17
FBEXT
PIFIN1 13
24
GEXT/Y
REXT/Cr
PLL
PIFLC2
23
BEXT/Cb
VCCD 4
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 9. STV2237H (TQFP64) Block Diagram
SDA
XTAL1
XTAL2
XTAL3
16/86
17/86
GND2 27
VCC2 25
GND1 57
64
1
56
53 54 55
52
19
VAMP DC
CONTROL
63 HOUT
62 VERT
43 BOUT
44 GOUT
45 ROUT
46 ICATH
61 BCL/SAF
47 BOSD
48 GOSD
49 ROSD
50 FBOSD/HC
36 APR
STV2238H
HORIZONTAL
2nd LOOP
VERTICAL
SCANNING
HORIZONTAL
1st LOOP
SYNC.
SEP
ICATH SENSE
BCL/SAF
XTAL3/BTUN
AM/FMOUT/SC
22
AUTO IDENT.
KILLER
PAL/SECAM/NTSC
DEMODULATOR
CHROMA
DL
APR
RGB
CONTRAST
CLPF
EXTAUDIOIN
6
CLOCHE
TUNING
BANDPASS
FILTER
BRIGHT.
DRIVE
CUT-OFF
BLANKING
RGB
SWITCH
HALF CTR
RGB TO
YUV
X1/VAMP/CHROUT
AUDIOOUT
11
VOLUME
AVL
Mute
CLOCHE
FILTER
ACC & ACC
OVERLOAD
FILTER
TUNING
CHROMA
TRAP
SAT./CONT
MATRIX
YUV
SWITCH
39 38 37
40
SLPF
VREFIF
2
AUDIO
REF
Mute
AM
Mono
FM
Mono
SOUND BP
DEEMP.
FM DEMOD
LUMA DL
PEAKING
& CORING
BLACK
STRETCH
29
LFB/SSC
SCL
3
I²C BUS
DECODER
SAW FILTER
SWITCH CONTROL
AGC
LIMITER
PLL Reference
Carrier
Sound Subcarriers
VCC1 59
GNDIF 18
V CCIF 20
SAW 15
AGCSIFCAP 10
SIFIN2 9
SIFIN1 8
PIFLC1
TUNER AGC
IFPLL
TUNERAGCOUT 16
AGC
INTCVBSOUT
AGCPIFCAP 12
CHR
W/B SPOT
INVERTER
FMCAP
PIFIN2 14
Y/CVBSIN3
AFC
CVBSIN2
41 58
CVBSIN1
34 28 26
CVBSOUT1
7 35
CVBSOUT2
21
BS
17
FBEXT
PIFIN1 13
24
GEXT/Y
REXT/Cr
PLL
PIFLC2
23
BEXT/Cb
GNDD 5
V CCD 4
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 10. STV2238H (TQFP64) Block Diagram
SDA
XTAL1
XTAL2
GND2 27
64
1
56
55
54
XTAL1
53
XTAL2
52
XTAL3/BTUN
19
FMOUT/SC
22
VAMP DC
CONTROL
63 HOUT
62 VERT
43 BOUT
44 GOUT
45 ROUT
46 ICATH
61 BCL/SAF
47 BOSD
48 GOSD
49 ROSD
50 FBOSD/HC
36 APR
STV2239H
HORIZONTAL
2nd LOOP
VERTICAL
SCANNING
HORIZONTAL
1st LOOP
SYNC.
SEP
CLPF
EXTAUDIOIN
6
AUTO IDENT.
KILLER
PAL/SECAM/NTSC
DEMODULATOR
CHROMA
DL
APR
ICATH SENSE
BCL/SAF
RGB
CONTRAST
HALF CTR
RGB
TO YUV
X1/VAMP/CHROUT
AUDIOOUT
11
VOLUME
CLOCHE
TUNING
BANDPASS
FILTER
BRIGHT.
DRIVE
CUT-OFF
BLANKING
RGB
SWITCH
SAT./CONT
MATRIX
YUV
SWITCH
39 38 37
40
SLPF
V REFIF
2
AUDIO
REF
Mute
CLOCHE
FILTER
ACC & ACC
OVERLOAD
FILTER
TUNING
CHROMA
TRAP
LUMA DL
PEAKING
& CORING
BLACK
STRETCH
29
58
LFB/SSC
SCL
3
I²C BUS
DECODER
AVL
DEEMP.
Y/CVBSIN3
VCC2 25
Mute
SOUND BP
FM DEMOD
FM Mono
GND1 57
PLL Reference
Carrier
SAW FILTER
SWITCH CONTROL
AGC
TUNER AGC
W/B SPOT
INVERTER
26
Sound Subcarriers
CVBSIN2
VCC1 59
GNDIF 18
V CCIF 20
SAW 15
AGCSIFCAP 10
SIFIN2 9
SIFIN1 8
TUNERAGCOUT 16
AGC
PIFLC1
AGCPIFCAP 12
IFPLL
PIFIN2 14
41
CVBSIN1
28
CVBSOUT2
AFC
CVBSOUT1
34
BS
GNDD 5
INTCVBSOUT
7 35
CHR
21
FMCAP
17
FBEXT
PIFIN1 13
24
GEXT/Y
REXT/Cr
PLL
PIFLC2
23
BEXT/Cb
VCCD 4
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 11. STV2239H (TQFP64) Block Diagram
SDA
18/86
STV224XH/228XH/223XH - MAIN FEATURES
2 MAIN FEATURES
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
I²C Bus control (Read and Write modes).
PLL PIF demodulator, bus-controlled VCO
alignment.
Positive and negative IF modulation.
Digital AFC.
Tuner-delayed AGC output.
White and Black Spot cancellation.
SIF with QSS structure.
Intercarrier capability.
Built-in sound bandpass.
Multistandard PLL FM Demodulator (4.5, 5.5,
6.0, 6.5 MHz).
Audio FM Wide mode (BGDKI): Capable of
demodulating ±400 kHz overmodulated audio
signals, to be used in QSS architecture.
AM demodulator for France.
Sound subcarrier output for Stereo chassis: FM
and NICAM carriers.
Audio switch for external audio input, Mono
chassis.
Digital volume control.
Audio Mute.
Automatic Volume Levelling (AVL) on audio
signal (internal or external audio).
Digital buffer for SAW filter switching.
Video switch, three Composite Video
Broadcasting Signal (CVBS) inputs and two
CVBS outputs (which can be used to drive a
teletext decoder).
SVHS switch, Y input is combined with CVBS3
input.
Capability to output Y+C signal on second
CVBS output.
OSD RGB analog inputs, fast blanking
detection on fast blanking OSD pin, contrast
control capability.
Half-contrast control pin.
External analog RGB inputs with contrast and
saturation control (external RGB matrixed in
YUV). External analog YCrCb inputs can be
connected to the same inputs. In this case, the
sync signal must be sent to the CVBS input, and
External YCrCb mode must be selected through
the I²C bus.
Y,U,V inputs outputs: Y,U,V inputs/outputs for
the use of enhanced picture ICs.
Integrated chroma filters (trap, bandpass, bell)
with automatic alignment.
19/86
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
Integrated luminance delay line.
Adjustable peaking on the luminance signal with
coring function.
Black Stretch circuit.
Automatic RGB peak regulation (APR) or RGB
peak limitation.
PAL/SECAM/NTSC color decoder with
automatic identification of standards.
Integrated chroma delay line.
Full integrated SECAM decoder.
Hue control, 2 selectable matrices in NTSC
mode.
Automatic Flesh Control circuit with two
selectable characteristics (normal and wide).
Automatic Color Control (ACC) overload circuit.
Chroma subcarrier output which could be used
to drive a comb filter circuit.
Automatic digital cut-off current loop with warmup detection circuit.
White point (drive) and cut-off point
adjustments.
Manual cut-off capability.
Beam current limiter control stage.
High-performance sync pulse separator.
Horizontal synchronization with two phaselocked loops.
Integrated VCO, auto-calibration using the
chroma crystal reference frequency.
Automatic time constant selection for the first
PLL, three selectable time constants.
Video identification circuit (independent from
PLL1).
Noise detector circuit.
Vertical countdown circuit.
Automatic 50/60 Hz selection circuit.
Blanking and inserted cut-off pulses position
adapted to standard (50 or 60 Hz).
Long blanking mode capability in 60 Hz (same
blanking as with 50 Hz standard).
De-interlace capability.
Horizontal starting circuit with soft-start
capability.
Horizontal and vertical position adjustments,
vertical amplitude control voltage (combined
with chroma subcarrier output).
Oversize Blanking capability on OSD Fast
Blanking input.
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
3 FUNCTIONAL DESCRIPTION
The STV224XH/228XH is an integrated device
that processes PIF, SIF, Video and Chroma signals while scanning for PAL, SECAM and NTSC
standards. It includes a base band chroma delay
line, Video, SVHS and audio switches.
3.1 DETAILED FEATURES
3.1.1 Power Supplies
VCCIF: 5 V power supply dedicated to IF processors. GNDIF is the ground reference of these
parts.
VCCD: 5 V power supply dedicated to I²C bus and
digital parts. GNDD is the ground reference of
these parts.
VCC1: 8 V power supply for video switches, scanning part and the chroma decoder. GND 1 is the
ground reference of all these functions.
VCC2: 8 V power supply for the luminance, RGB
processing parts audio switch and internal CVBS
output. GND2 is the ground reference of these
parts.
3.1.2 Picture Intermediate Frequency (PIF)
– AGC amplifier.
– PLL synchronous demodulator. Bus-controlled
VCO for integrated tuning of the external LC resonator. For a 38.9 MHz VCO, the LC coil specification has to be:
C = 39pF, f = 44 MHz ±2% (LC not connected).
For a 33.9 MHz VCO (L’), the VCO can be
switched via the bus control.
– Digital AFC via bus.
– IF Automatic Gain Control (AGC)
Negative modulation: top sync regulation, regulation of overmodulated signals (overmodulation
regulation circuit enabled through bus control).
Positive modulation: main regulation on white
level with black level limitation.
– Tuner-delayed AGC with bus control for AGC
gain and threshold. Tuner AGC output status can
be read in I²C bus read register.
– CVBS output with two bus-controlled amplitudes. CVBS output at 2 VPP if external sound
trap is not connected (QSS mode, for example).
CVBS output at 2.3 VPP if external sound trap is
connected.
3.1.3 Sound Intermediate Frequency (SIF) and
Sound Demodulators
– QSS structure.
– SIF Automatic Gain Control (QSS mode).
– Built-in sound bandpass.
– PLL FM Demodulator for 4.5, 5.5, 6.0 or 6.5 MHz
carriers. The Sound Standard is selected by the
MCU. The FM demodulator VCO is automatically
calibrated using the chroma crystal VCO reference frequency. The FM Demodulator VCO is
automatically calibrated for all sound standards
independently of the chroma crystal VCO frequency, which is either 4.4 MHz or 3.5 MHz. For
each sound carrier frequency, the IC sends an
indication of the sound subcarrier level to the
MCU so that it can select the proper standard.
In Normal mode, the maximum FM deviation is
200 kHz. In Audio FM Wide mode (BGDKI), the
maximum FM deviation is 400 kHz. The Audio
FM Wide mode of the STV224XH must be used
in QSS applications only, using standard specific
SAW filters (DK SAW filter or BG SAW filter).
– The sound subcarrier level is valid when the FM
Demodulation VCO is calibrated. This information can be read via the I²C Bus.
– Bus controls for FM de-emphasis (50 or 75 µs)
and FM deviation ±25 or ±50 kHz).
– AM demodulator.
– Sound demodulator output: either an AM or FM
signal can be the output for the Mono chassis
– Sound subcarriers for the Stereo chassis.
3.1.4 Audio Switch
– One SCART switch.
– Bus-controlled volume and mute. Zero-crossing
function on volume control.
– Automatic Volume Levelling (AVL) function can
be enabled via the I²C bus.
– AVL status (Min. or Max. AVL Gain) can be read
in I²C bus register.
– The AM sound can be selected on the main audio output for the Stereo chassis.
3.1.5 Surface Acoustic Wave (SAW) Filter
Switch Control
– SAW filter switch control pin is available in the
TQFP64 package. The SAW filter switch control
pin is used to select the correct SAW filter characteristics (e.g.: M/N or BGDK characteristics).
In a multi-standard chassis, two output voltages
are selected via the I²C bus (low level voltage at
0.4 V Max., and high level voltage at 4 V Min.).
3.1.6 Video Switches
– Video switch with three CVBS inputs and one
CVBS output (CVBSOUT1) which may be used
to drive a teletext decoder.
20/86
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
– A second CVBS output (CVBSOUT2) is able to
output recombined Y+C signals.
All switches are independently controlled.
– SVHS switch, Y input is combined with CVBS 3
input. CVBS/SVHS modes can be selected either by bus control (software selection), or by
sensing the DC voltage on the Chroma Input pin
(hardware selection). If the Chroma Input is
grounded, the CVBS mode is selected and the
bus control is not active. If the DC level of the
Chroma Input is higher than the SVHS threshold,
then the bus control for the SVHS switch is active. Therefore, the SVHS mode can be selected
by hardware using a special SVHS connector
that includes a mechanical switch. In this type of
application, the bus control is set to SVHS mode,
and the CVBS mode is selected by grounding the
Chroma Input pin.
3.2 DEFLECTION PART
3.2.1 Synchronization Separator
– Fully-integrated synchronization separator with a
low pass filter, black level alignment of the CVBS
input, and a 50% slicing level for the synchronized pulse amplitude.
3.2.2 Two Phase-Locked Loops (PLL)
Auto-calibrated VCO using the chroma crystal reference. Crystal control pin X1/VAMP/CHROUT indicates the crystal reference value on Pin XTAL1.
When a 4.43 MHz crystal is connected to
Pin XTAL1, the output load on Pin X1/VAMP/
CHROUT must be greater than 80 kW. When a
3.58 MHz crystal is connected to Pin XTAL1, the
output load must be less than 10 kW.
The first PLL locks the VCO to the video line frequency and the second PLL compensates the line
transistor storage time.
Three time constants for the first PLL.
– [X,Y]: Line number referring to the internal line
counter numbering system.
The long time constant is used for normal operation.
The short time constant is automatically used during the VCR search mode and frame retrace when
the frame pulse is outside [258,264] and
[309,314].
The very long time constant is used when there is
no video recognition (very good OSD stability).
Time constants in normal operation (automatic selection of time constants):
21/86
– 50 Hz input signal:
short time constant: [306,21],
long time constant: the rest of the field.
– 60 Hz input signal:
short time constant: [0,16],
long time constant: the rest of the field.
3.2.2.1 Inhibition of the First PLL
The first PLL is inhibited from line 309 to line 4.5
(or 314) in 50 Hz mode and from line 258 to line
5.5 (or 264) in 60 Hz mode. The time constant values are chosen by means of external components.
– Possibility of forcing the short time constant during the all frame via the bus.
– Possibility of forcing the long time constant during the all frame via the bus.
– Possibility of forcing a very long time constant
during the all frame via the bus.
Generation of burst gate pulses and line frequency
signals from the first PLL to drive the Chroma and
Video circuits. The burst gate pulse is also sent to
the super-sandcastle generator.
3.2.3 Video Identification
The video identification status is available in the
output register of the I²C bus decoder (independent from PLL1).
3.2.4 Vertical Synchronization
Frame synchronized window:
– large window: [248,352] in AUTO mode,
[248,284] in forced 60 Hz mode, [288,352] in
forced 50 Hz mode.
– narrow window: [309,314] in 50 Hz mode,
[258,264] in 60 Hz mode.
Field frequency selection windows:
– [248,284] 60 Hz mode selection window.
– [288,352] 50 Hz mode selection window.
Frame blanking pulse adapted to standard:
– from line 309 to line 21 in 50 Hz mode,
– from line 258 to line 16 in 60 Hz mode.
3.2.5 Vertical Blanking
Long blanking mode: the end of frame blanking is
line 21 both in 50 and 60 Hz modes. This mode is
useful when the flyback time of the vertical output
stage is longer than the 60 Hz blanking time. It is
used to optimize the 50/60 Hz vertical amplifier application due to long frame blanking.
3.2.6 Vertical Oversize Blanking
The Oversized Blanking function is controlled by
the voltage on the FBOSD pin. When the FBOSD
voltage is between the first and the second thresh-
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
olds, the OSD RGB signals are selected. When
the FBOSD voltage is greater than the second
threshold (4 V blanking threshold), the RGB outputs are blanked during the whole field, but not
during inserted cut-off lines (the cut-off loop is always active). The blanking feature, via the FBOSD
input pin, enables Vertical Oversize Blanking
when a 4:3 picture is displayed on a 16:9 screen in
Zoom mode. The picture outside the screen is
blanked by the Oversize Blanking pulse supplied
by the external vertical IC (STV9306).
3.2.7 Vertical Output
The Vertical output pulse is locked on a pulse that
is twice the horizontal frequency to ensure perfect
interlacing.
The Vertical output pulse duration is 10.5 lines.
Horizontal output pulse is a 28 µs line pulse on an
open collector output.
3.2.8 Vertical Control
Bus-controlled DC output voltage for adjusting the
vertical amplitude (pin VAMP). This voltage supply
is used to adjust the slope of the vertical sawtooth
generated by the external vertical booster.
Bus-controlled vertical position (pin VERT). The
high level of the vertical pulse is used to adjust the
vertical position.
The bus-controlled vertical output (pin VERT) low
level voltage can be either 0.2 V or 2.0 V.
3.2.9 Horizontal Output
Start-up circuit: the horizontal output is at high level (disabled) when VCC1 increases from 0 to 6.0 V
and when VCCD has not reached 4 V.
Soft mode circuit: it provides a softer operating
horizontal output with a 75% duty cycle [tHIGH /
(tHIGH +tLOW)]. This results in a smaller conducting
time (16 µs instead of 28 µs).
This mode is active at start-up until two frames after the VCC2 reaches 75% of the VCC1. It is also
active at shutdown when the VCC1 floats between
6 V and 5.4 V. And finally, this mode is used if the
VCC2 drops below 75% of the V CC1.
At shutdown, horizontal pulses are disabled when
VCC1 is less than 5.4 V or when V CCD is less than
3.5 V.
The horizontal output pulse may be disabled via
the bus (force a high level on HOUT).
The horizontal position adjustment is controlled via
the bus.
3.2.10 Horizontal Control
Safety input on BCL Pin. When the BCL Pin is
switched to ground, the horizontal output pulse is
disabled and the inhibition of horizontal output
pulse is maintained until VCC1 is less than 3 V
(VCC1 power supply is switched off). The Safety
function can be disabled via the I²C bus. When
register 15hex data D7 is set to “1”, the Safety
function is reset and no longer active.
3.2.11 Combined Line Flyback / SuperSandcastle
Combined Line Flyback input and Super-Sandcastle output: The line blanking level is clamped at
3 V, the burst key pulse voltage is 5 V and vertical
pulse voltage is 2 V. The line pulse is extracted
with a 2.5 V slicing level used for RGB line blanking and PLL2 control.
3.2.12 Line Blanking
Line blanking at RGB outputs is logical OR of line
flyback pulse and internal line blanking pulse with
a 12 µs width.
In Wide Line Blanking mode, line blanking at RGB
outputs is logical OR of line flyback pulse and internal line blanking pulse with a 15.8 µs width.
Wide line blanking is recommended when displaying a 4:3 image on a 16:9 screen (horizontal scanning reduction).
3.2.13 Copy Protection Mode
This mode is used to improve the display of copyprotected video signals.
3.3 FILTERS
3.3.1 Integrated Trap Filter
Q = 1.5 (f-3dB = f0 (1-1/2Q)),
Center frequency:
– 4.43 MHz, 3.58 MHz for PAL and NTSC.
– 4.25 MHz, for SECAM
(-20 dB rejection between 4.1 MHz and
4.4 MHz).
The chroma trap filter is switched off in SVHS
mode, or in color standard search mode (standard
not identified). In external YCrCb mode, the trap
and luma delay can be switched off via the I²C bus.
3.3.2 Integrated Chroma Bandpass
Q = 3.5, Center frequency: 4.43 MHz, 3.58 MHz.
The Bus Control Frequency Shift is used to optimize the chroma response for the video signal
from the IF stage.
3.3.3 Integrated Bell Filter for SECAM
Q = 16, Center frequency: 4.286 MHz.
The Bus Control Frequency Shift is used to optimize the chroma response for the video signal
from the IF stage.
22/86
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
3.3.4 Integrated Luma Delay Line
Bandwidth: 8 MHz.
The Luma Delay Line is automatically adapted to
the chroma standard. For PAL BG and applications without group delay compensation, a Luma
Delay Shift of -140 ns can be selected via the I²C
bus.
3.3.5 Filter Tuning
All filters are tuned via a reference phase-locked
loop. The PLL is based on a trap filter, a phase
comparator and an internal loop filter (capacitor).
The reference signal is the continuous carrier
wave from the Chroma VCO (4.43 MHz or
3.58 MHz). The PLL adjusts the center frequency
of the trap until it equals the reference signal.The
PLL tuning voltage is used to adjust all other integrated filters. The Bell filter is fine-tuned with a
second PLL during the frame retrace. The Bell filter tuning voltage is memorized on an external capacitor (BTUN Pin).
3.4 VIDEO CIRCUIT
3.4.1 RGB Inputs
The RGB (OSD) input has priority over the external RGB input. The RGB (EXT) source is matrixed
into YUV signals for color and contrast adjustments. The brightness is adjusted according to the
internal and external RGB and OSD RGB signals.
The Contrast Control regulates both external and
internal RGB signals and has a maximum attenuation of -24 dB. It also regulates the OSD RGB signal and its maximum attenuation is limited to
-12 dB. The Contrast Control for RGB (OSD) input
can be disabled via the bus. The brightness of the
RGB (OSD) input varies according to the main
brightness level.
The RGB (EXT) insertion signal can be disabled or
forced via the bus. A fast blanking detector on the
external fast blanking input is able to detect the
Fast Blanking pulse occurrence at each frame and
then memorizes it until the end of the next frame.
RGB Insertion is controlled either by an external
signal on the FBEXT pin or via the I²C bus. The
Fast Blanking detection status is sent to the I²C
bus read register.
3.4.2 YCrCb Mode
External YCrCb signals can be applied to RGB
(EXT) inputs. Two input modes are possible:
– The Sync signal is applied to CVBS input, the Y
signal is applied to GEXT, the Cr signal is applied
to REXT and the Cb signal is applied to BEXT.
– The Y signal is applied to CVBS input, the Cr signal is applied to REXT and the Cb signal is ap-
23/86
plied to GEXT. The trap and luma delay line must
be disabled by the I²C bus and peaking must be
set to minimum.
The OSD fast blanking input has several functions:
OSD Insertion Control, RGB Output Blanking or
Half Contrast Control.
3.4.3 Half-Contrast Control
A 6 dB gain reduction will be applied to the internal
YUV signals when the half-contrast function is
turned ON, and the voltage of the half-contrast input exceeds the threshold (0.7 V Typ.).
The Half Contrast input is combined with the
FBOSD input.
3.4.4 YUV to RGB Matrix
The PAL/SECAM matrix is provided and a specific
NTSC matrix is used when demodulation angles
are (0°,104°).
3.4.5 Automatic Cut-off Current Loop
The Cut-off Loop range is 2 V (the cut-off level of
the RGB outputs is between 1.5 V and 3.5 V,
2.5 V Typ.). The cut-off current is measured sequentially during the three lines after the internal
frame blanking signal (the blue cathode current is
measured first, then the green and red). The Leakage cathode current is measured during frame
blanking and is memorized on an internal capacitor. The Cut-off loop can be frozen via the bus. To
prevent cut-off lines from being visible in 16:9
mode, cut-off pulses are not inserted when the cutoff loop is frozen.
3.4.6 Warm-up Detector
At power on, the cut-off loop is not active and high
DC levels are inserted during "cut-off" lines. The
Cut-off loop will be active when the cathode current reaches the warm-up detection threshold.
This causes the picture to be displayed from a
dark screen. The RGB outputs are blanked until
cut-off current is close to the reference voltage.
The manual cut-off mode can be selected via the
I²C bus. In this mode, the ICATH input pin is inactive and cut-off pulses are not inserted. The RGB
black levels are independently controlled by three
I²C bus registers (8-bit resolution). The black level
of each RGB output can be adjusted within a
range of 2.5 V (typ.).
3.4.7 Beam Current Limiter DC Voltage Input
The Beam Current Limiter (BCL) will first decrease
the contrast and then the brightness when the
contrast attenuation reaches -5 dB.
3.4.8 Drive (RGB gain) and DC Adjustment
The red, green, blue channel gain for white point
adjustment takes place via the bus. The red and
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
green DC levels for black point adjustment takes
place via the bus.
3.4.9 Bus-controlled Contrast & Saturation
The Contrast Control regulates internal RGB, external RGB and OSD RGB inputs. The maximum
attenuation on internal and external RGB inputs is
-24 dB and is limited to -12 dB for OSD RGB inputs. The bus-controlled saturation range is 50 dB.
3.4.10 Bus-controlled Brightness & Sharpness
The total brightness range is 60% of the black-towhite amplitude at maximum contrast. The brightness control regulates all RGB sources (internal,
external and OSD). Bus-controlled Sharpness
(peaking) is provided in PAL/SECAM/NTSC
standards.
3.4.11 Bus-controlled Coring on Sharpness
When the Coring-on-sharpness function is
switched ON, the peaking function is not active on
low amplitude signals (below 10 IRE).
3.4.12 Black Stretch
The Black Stretch circuit can be disabled via the
bus. Two modes are provided, one to be used
when the video signal is transmitted with a set-up
(7.5IRE set-up in NTSC), the other to be used
when the video signal is transmitted without a setup (PAL/SECAM).
3.4.13 Bus-controlled Blue Screen
The bus-controlled Blue Screen feature is used to
insert a blue background on the screen when no
video is available. The RGB OSD can be displayed when the blue screen is active.
3.4.14 White Insertion
This function is used to force a full white screen at
RGB output via the I²C bus or during Soft mode at
Powerdown.
3.4.15 Automatic RGB Peak Regulation (APR)
The APR function is used to take advantage of the
total RGB output range. APR circuits detect the
peak level of the RGB outputs (before OSD insertion) and regulate the RGB gain (contrast) so that
signals above the APR threshold are limited. For
example, at maximum drive and contrast levels
with the APR function switched OFF, the 100 IRE
input signal gives 3 V(B/W) to the RGB outputs.
With APR ON and the APR threshold at 70 IRE,
the 70 IRE input signal gives 3 V (B/W) at RGB
outputs. For input signals above 70 IRE, the APR
will decrease the RGB gain so that amplitude at
the RGB output is always 3 V (B/W). The APR
gain control voltage is memorized on an external
capacitor where the gain decrease is very fast and
the gain increase is very slow (several frames).
The APR function can be enabled or disabled via
the I²C bus.
APR ON when register 10 hex d0 = 1 and register
07 hex d6 = 0.
3.4.16 RGB Peak Limitation
The APR function can be switched into an RGB
Peak Limitation function via the I²C bus: register
07 hex, data d6 = 1 and register 10 hex d0 = 1.
For this purpose, the APR threshold, tracked with
the contrast for the APR function, is changed in a
fixed threshold that is independent of the contrast.
In this case, the APR threshold I²C control should
be set to its maximum value.
3.5 CHROMA CIRCUIT
3.5.1 PAL/SECAM/NTSC Decoders
SVHS Chroma input; bus-controlled SVHS mode.
– 30 dB Automatic Color Control (ACC) range.
The ACC function is an automatic gain control of
the color amplifier.
– Integrated chroma base band delay line and ON/
OFF bus control.
– Automatic standard identification, with possibility
of forcing the standard via the bus.
– 3-crystal application capability for the South
American market:
The first crystal on Pin XTAL1 (3.5X MHz only),
the second crystal on Pin XTAL2 (3.5X MHz only), and the third crystal on Pin XTAL3/BTUN
(3.5X MHz only, used for PAL/NTSC application
only).
3.5.2 PAL/NTSC Decoder
ACC carried out by peak detector on synchronous
demodulation of the burst.
Fully-integrated killer function.
VCO using two standard crystals: 4.43 MHz and
3.58 MHz. One crystal is internally selected depending on the standard selection. A third crystal
can be used in PAL/NTSC applications only.
VCO reference signal is available on Pin X1.
– 4.433619 MHz Crystal specification.
Mode of operation: serial resonance (without
load capacity),
Motional capacitance: CM = 13fF ±3fF,
Shunt capacitance: CP < 7pF,
Serial resistance: RS < 70W.
– 3.579545 MHz Crystal specification (NTSC M).
Mode of operation: serial resonance (without
load capacity),
Motional capacitance: CM = 11fF ±3fF,
24/86
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
Shunt capacitance: CP < 7 pF,
Serial resistance: RS < 70 W.
– 3.575611 MHz XTAL specification (PAL M).
Mode of operation: serial resonance (without
load capacity),
Motional capacitance: CM = 12fF ±2fF,
Shunt capacitance: CP < 7pF,
Serial resistance: RS < 70W.
– 3.582056 MHz XTAL specification (PAL N).
Mode of operation: serial resonance (without
load capacity),
Motional capacitance: CM = 12fF ±2fF,
Shunt capacitance: CP < 7pF,
Serial resistance: RS < 70W.
0° and ± 90° demodulation angles for PAL.
Bus-controlled demodulation angles (0, 90) or (0,
104) are available in NTSC mode.
Bus-controlled Hue adjustment is available in
NTSC mode.
3.5.2.1 NTSC Automatic Flesh Control
Two automatic flesh control characteristics are
available via the bus.The normal flesh control with
±10° correction and a total action range of ±60°
and the wide flesh control with ±20° correction and
a total action range of ±90°.
25/86
3.5.3 SECAM Decoder
The following functions are fully-integrated: Killer,
PLL demodulator and De-emphasis functions.
3.5.4 Chroma Standard Identification
R-Y and B-Y outputs are blanked during Color
Search mode. The color is displayed only when
the chroma standard has been identified.
3.5.4.1 Sequential Identification
Three identification sequences:
– XTAL1 (4.43 MHz) mode to identify either PAL or
NTSC.
– XTAL2 (3.58 MHz) mode to identify either PAL or
NTSC.
– SECAM mode (XTAL1 selection).
In 3-crystal applications, the SECAM sequence is
replaced by XTAL3 selection to identify either PAL
or NTSC signals.
3.5.4.2 SECAM Identification
SECAM mode is locked after two identified SECAM sequences.
SECAM mode can be selected in 50 Hz mode only. PAL/NTSC has priority over SECAM standard.
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4 ELECTRICAL CHARACTERISTICS
4.1 ABSOLUTE MAXIMUM RATINGS
Symbol
Value
Unit
VCC_8V
8 V Supply Voltage
Parameter
10
V
VCC_5V
5 V Supply Voltage
7
V
±2
kV
VESD
Capacitor 100 pF discharged via 1.5 kW serial resistance (Human Body Model)
TOPER
Operating Temperature
TSTG
Storage Temperature
0, +70
°C
-55, +150
°C
Typical
Value
Unit
°C/W
4.2 THERMAL DATA
Refer to Section 10 for more information about TQFP64 cooling.
Symbol
Parameter
RthJA
Junction-ambient Thermal Resistance at ambient 25°C
SDIP56
40
RthJA
Junction-ambient Thermal Resistance at ambient 25°C
TQFP64
50
°C/W
RthJC
Junction-case Thermal Resistance at ambient 25°C
TQFP64
10
°C/W
4.3 SUPPLY
(Supplies at Typical Values, Tamb = 25° C, I²C bus register at power-on reset value, automatic cut-off
mode, unless otherwise specified).
Symbol
VCCIF
VCCD
VCC1
VCC2
ICCIF
ICC5F
I CCI
ICC2
PD
Parameter
IF Circuit Supply Voltage
Bus & Digital Supply Voltage
Chroma, Scanning Supply Voltage
Video Supply Voltage
VCCIF Current Consumption
VCC5F Current Consumption
VCCI Current Consumption
VCC2 Current Consumption
Total Power Dissipation
Test Conditions
VCCIF = 5 V. No-load at RGB outputs.
VCCD = 5 V. No-load at RGB outputs.
VCCI = 8 V. No-load at RGB outputs.
VCC2 = 8 V. No-load at RGB outputs.
VCCI = VCC2 = 8 V,
VCCIF = VCC5V = 5 V
No-load at RGB outputs.
Min.
4.75
4.75
7.6
7.6
Typ.
5
5
8
8
58
48
40
56
1300
Max.
5.25
5.25
8.4
8.4
Unit
V
V
V
V
mA
mA
mA
mA
mW
26/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4 IF SECTION
Tamb = 25°C, VCCIF = 5 V, VCC2 = 8V, IF input =10 mVRMS (at sync level for negative modulation, or at
peak white level for positive modulation).
Video modulation DSB, D = 90% and fSC = 33.4 MHz in B/G, D = 95% in L, fPC = 38.9 MHz.
Video Bandwidth = 5 MHz, AF = 1 kHz, Audio Bandwidth = 20 kHz, FMdev = ±27 kHz.
Volume Attenuation = 0 dB, AM carrier input: 10 mVRMS , 54% modulated unless otherwise specified.
4.4.1 PIF Amplifier
Symbol
VINPIF
RINPIF
CINPIF
GR
VMax.
Parameter
Input Sensitivity
Differential Input Resistance
Differential Input Capacitance
Gain Control Range
Maximum Input Signal
Test Conditions
-1dB at Video Output (INTCVBSOUT)
PIF Inputs.
PIF Inputs.
Min.
75
1.5
1.5
+1dB at Video Output (INTCVBSOUT) 0.12
Typ.
85
2
2
65
0.15
Max.
95
2.5
2.5
Unit
µVRMS
kW
pF
dB
VRMS
Typ.
675
Max.
900
Unit
µA
µA
4.4.2 PIFAGC Negative Modulation
Symbol
IC
ID
IC/I D
Parameter
Charging Current at AGCPIFCAP Pin
Discharging Current at AGCPIFCAP
Pin
Charging/Discharging Current Ratio
Test Conditions
Min.
450
10
15
20
41
45
49
Min.
1.75
Typ.
2.5
Max.
3.25
Unit
mA
0.15
0.25
0.35
µA
2.8
4
5.2
µA
4.4.3 PIFAGC Positive Modulation
Symbol
IC
ID
ICP
THICP
IDP
THIDP
Parameter
Charging Current at AGCPIFCAP Pin
Discharging Current at AGCPIFCAP
Pin
Test Conditions
L mode in case of missing VITS
Additional Charging Current at
pulses and no white in Video conAGCPIFCAP Pin
tent
Threshold for additional charging cur- Referred to nominal black level
rent
2.3 VPP at INTCVBSOUT Pin
Additional Discharging Current
Threshold for additional discharging Referred to nominal black level
2.3 VPP at INTCVBSOUT Pin
current
160
20
30
mV
40
-345
µA
mV
4.4.4 Tuner AGC
Symbol
IAGCT
Parameter
Maximum Sinked Current
SAGCT
Tuner AGC Slope (current)
Test Conditions
Reg 03 (D7, D6)
I AGCP
AGCST
STT
27/86
Maximum Tuner plus Sinked Current (See Note 1)
Reg 03 (D5 to D0 = 10 0000)
Tuner AGC Starting Point (IF input
Reg 03 (D5 to D0 = 00 0000)
related signal)
Reg 03 (D5 to D0 = 11 1111)
Variation of take over point with temperature
Min.
1.5
00
01
10
11
Typ.
2
50
95
170
270
40
12
2
80
Max.
2.5
0.03
0.07
Unit
mA
µA/dB
mA
mVRMS
dB/K
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Note 1: Additional sinked current for large increasing steps of input signal when:
- Voltage at PIFinput > Tuner AGC starting point adjustment given by the WR03(d5 to d0)
- Output Signal (IntCVBSout) saturated (VIntCBVSoutVwth) in positive modulation.
4.4.5 Synchronous Video Demodulator
Symbol
DFPC
fVCO
VILOCK
TVCO
Parameter
Test Conditions
Vision Carrier Capture Range
Maximum VCO Frequency for PIF With external LC network at 50 MHz
regeneration
(see Note 2)
PIF Input Signal for PIF PLL locking
PIFVCO Temperature Coefficient
Min.
Typ. Max.
±2
50
Unit
MHz
MHz
40
70
±20
µVRMS
ppm/K
Min.
Typ.
Max.
Unit
1.19
1.4
1.61
1.36
1.6
1.84
5
8
%
3
3
1
1
60
5
5
10
10
%
deg
mVRMS
mVRMS
dB
Note 2: This parameter is not tested during production, it is tested during the qualification phase.
4.4.6 Demodulated Video Output (INTCVBSOUT Pin)
Symbol
Parameter
PIFOUT-Q
PIFOUT-I
Video Amplitude at INTCVBSOUT
Pin
BG/L
BG to L Ratio
DG
DP
VPIF
VR2IF
S/N
Differential Gain
Differential Phase
Residual Carrier Signal
Residual 2nd Harmonic
Video Output S/N Ratio
VWTH
White Noise Threshold Voltage
VWIL
White Noise Insertion Level
VBTH
Black Noise Threshold Voltage
VBIL
Black Noise Insertion Level
BW
LUMLIN
ROUT
Video Bandwidth
Luminance Non Linearity
Internal Output Resistance
RLOAD
Output Load Resistance
IVID
Video Output Source Current
DCOUT
Inter Mod.
DC Output Level
1.07 MHz Intermodulation
PSRR
NH
Power Supply Ripple Rejection
Suppression of Video signals harmonics
Test Conditions
Black-to-White Video amplitude:
reg 02 data = 10h
(INTCVBSOUT =2 VPP)
reg 02 data = 90h
(INTCVBSOUT =2.3 VPP)
Video amplitude bus register
Typ.: reg 02 data = 10 hex
2.3
2.3
2.3
2.3
See Note 3
reg 02 data = 90h
VPP at INTCVBSOUT Pin
reg 02 data = 90h
VPP at INTCVBSOUT Pin
reg 02 data = 90h
VPP at INTCVBSOUT Pin
reg 02 data = 90h
VPP at INTCVBSOUT Pin
V
55
6
reg 02 data = 10hex
(INTCVBOUT = 2 VPP)
reg 02 data = 90hex
(INTCVBSOUT = 2.3 VPP)
Top Sync Level
Intercarrier Mode
Video signal Grey level (see Note 4)
BG standard
L standard
6.7
V
3.7
V
1
V
2.6
V
8
50
MHz
%
W
2
3
kW
7
10
2
52
35
30
35
10
5
13
mA
V
dB
dB
40
dB
Note 3: S/N = 20 log [PIFOUT Black to White / VNOISE(mVRMS) weighted CCIR 567.
Note 4: Supply Voltage ripple rejection = 20log (VSUPPLY/VOUTPUT) measured at 100 Hz with VAC Max. = 100 mVpp applied to VCC IF = 5 V.
28/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4.7 SIF Amplifier
Symbol
Parameter
VINSIF
SIF Input Sensitivity
GRSIF
CINSIF
RINSIF
Gain Control Range
Differential Input Capacitance
Differential Input Resistance
Test Conditions
Min.
- 3dB at AM/FMOUT Pin (see Note 5)
AM output amplitude,
FM subcarrier amplitude
- 3dB to +1dB at AM/FMOUT Pin
SIF Inputs (see Note 6)
1.5
SIF Inputs
1.5
Typ.
55
40
60
2
2
Max.
Unit
µVRMS
2.5
2.5
dB
pF
kW
Note 5: L standard Sc/Pc = -10 dB, Nyquist Pc = -6 dB, SIF input -4 dB with PIF input = 84 µV, BG standard Sc/Pc = 13 dB, Nyquist Pc = -6 dB, SIF input -7 dB with PIF input = 85 µV.
Note 6: This parameter is not tested during production. It is tested on the validation bench during the qualification phase.
4.4.8 SIF AGC (FM)
Symbol
IC
ID
Parameter
Charging Current
Discharging Current
Test Conditions
Min.
Typ.
2.4
100
Max.
Unit
mA
µA
Test Conditions
Normal time constant
Fast time constant
Min.
Typ.
±6
±2.4
Max.
Unit
µA
mA
Max.
Unit
4.4.9 SIF AGC (AM)
Symbol
INORMAL
IFAST
Parameter
Charging/Discharging Current
Charging/Discharging Current
4.4.10 FM Demodulator
Electrical parameter valid in both QSS and Intercarrier modes, unless otherwise specified.
Symbol
SIFMin
VOAF
Parameter
Min. Broadcast Sound/Video Carrier Ratio
FM Audio Output Amplitude at AM/
FMOUT Pin
DFMX
_norm
Maximum FM Deviation
DFMX
_w_qss
Maximum FM Deviation
THD_FM
Total Harmonic Distortion
S/N
Audio S/N
AMR
SVR
Amplitude Modulation Rejection
Supply Voltage Rejection
S/N
vsvideo
S/N versus picture content, Intercarrier mode
Test Conditions
Min.
Intercarrier mode: SAW filter K2955M
at SNR 35 dB
FM dev = ±27 kHz BGDKI
400
FM dev = ±13.5 kHz MN
THD < 10%, normal audio mode,
AF = 1 kHz
QSS mode, Audio FM Wide mode
(reg 04h, d3d2 = 11),
AF = 1 kHz
FM dev = ±27 kHz BGDKI
Weighted according to CCIR468-4
Quasi-Peak
m = 30%, AF = 1 kHz
See Note 4
Intercarrier mode: SAW filter K2955M
Black picture,
White picture,
250 kHz squarewave
Typ.
Test Conditions
B,G,D,K,I standards
M, N, standards
Typ.
50
75
-30
500
dB
630
mVRMS
200
kHz
400
kHz
0.3
1
%
55
dB
32
45
dB
dB
52
50
52
dB
4.4.11 De-emphasis
Symbol
Parameter
deemp-T1 De-emphasis Time Constant
deemp-T2 De-emphasis Time Constant
29/86
Min.
Max.
Unit
µs
µs
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4.12 AM Demodulator
Symbol
Parameter
AM Audio Output Amplitude at AM/
AFOUT
FMOUT Pin
AMlowco Low Cut-off Frequency
AMhighco High Cut-off Frequency
AMthd
Total Harmonic Distortion
AMs/n
Signal/Noise Ratio
AMsvr
Supply Voltage Rejection
Test Conditions
54% modulation
-3 dB compared AFout
-3 dB compared AFout
54% modulation
Weighted according to CCIR468-4
Quasi-Peak
See Note 4
Min.
Typ.
Max.
Unit
400
500
630
mVRMS
40
Hz
kHz
%
30
2
55
dB
20
dB
4.4.13 SIF Output (AM/FM or Sound Subcarriers Output)
Symbol
Parameter
SIFout
Output Level
SIFbw
Bandwidth
SIF dcout DC Output Level
SIFres
Residual Carrier
SIFcur
Sink Output Current
Test Conditions
Sound subcarriers
Sound subcarriers
Min.
Typ.
150
Max.
4
Unit
mVRMS
MHz
V
0.4
mVRMS
0.5
1.5
mA
7.5
Fundamental wave (38.9 MHz) and
harmonics
AM or FM demod. output selected
Sound subcarriers output selected
4.4.14 SAW Filter Switch Output (TQFP64 only)
Symbol
Parameter
SAW low Low Output Voltage
SAWcur Maximum allowed Current
SAW high High Output Voltage
Test Conditions
ISINK = 2 mA
ISOURCE = 2 mA
Min.
Typ
Max.
0.4
2
Unit
V
mA
V
Typ.
100
2.4
Max.
130
Unit
kW
V
VRMS
Typ.
Max.
Unit
4
4.4.15 External Audio Input
Symbol
RIN
VIDC
AFIN
Parameter
Input Resistance
DC Input Voltage
maximum Audio Input Signal
Test Conditions
Min.
70
2
4.4.16 Main Audio Output
(See Figure 17 on page 42 and Figure 18 on page 42)
Symbol
AMax
AMin
ASTEP
DCSH
VODC
AFDIFF
Parameter
Maximum Attenuation (Audio Out/
AM-FM Out)
Minimum Attenuation (Audio Out/
AM-FM Out)
Step Resolution
DC Output Shift
Test Conditions
Min.
Register 05hex, data = 7Fhex
VIN = 1 VRMS, f = 1 kHz,
Register 05hex, data = 00hex
reg 05, d7 = 0
From max. volume to min. volume
78
-1
ROUT
Output Resistance
BWO
Output Bandwidth
THD_AM Total Harmonic Distortion
1
dB
50
dB
mV
0.7
DC Output Level
Audio Amplitude difference
between sources
0
dB
4
f = 1 kHz, fM = ±27 kHz,
Ext. Audio Input = 500 mVRMS
V
2
1
VIN = 1 VRMS, f = 1 kHz
dB
W
110
MHz
0.1
0.3
%
30/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
Parameter
S/N1
Signal to Noise Ratio from External Input
S/N2
Signal to Noise Ratio from External Input
S/N3
Signal to Noise Ratio from FM
Demod
SVRV
Supply Voltage Rejection from
External Input
XT
Crosstalk
NOISE
Output Noise Level
AFIN
Audio Input Level
Test Conditions
Measured at 0 dB attenuation,
Ext. Audio Input at 500 mVRMS,
CCIR 468-4 Weighted Quasi Peak
Measured at 20 dB attenuation,
0 dB reference
Ext. Audio Input at 500 mVRMS
Min.
Typ.
Max.
Unit
75
dB
55
60
dB
Measured at 20 dB attenuation,
FM: ± 27 kHz (Standards BGDKI)
Measured at f = 100 Hz from
VCC = 5 V and VCC = 8 V
52
55
dB
60
dB
See Note 7
CCIR 468-4 Weighted Quasi Peak
Volume at minimum
Volume at typical
Volume at maximum
70
dB
Volume = -25 dB, THD < 1%
2
50
50
100
60
60
120
µV
VRMS
Note 7: Measured from any input to output at f = 10 kHz with RL = 10kW and Rg = 600W, Volume attenuation = 0dB.
4.4.17 AVL
Symbol
GAVL
AVLMAX
Reg.AVL
Parameter
AVL Gain Control Range
(7-bit Resolution)
Maximum attenuation
Regulation amplitude
Test Conditions
Min.
Measured at AUDIOOUT
Volume Control at maximum
Typ.
Max.
Unit
20
dB
-15
dB
0.55
VRMS
4.5 CVBS, Y/C, RGB INPUTS AND CVBS OUTPUTS
4.5.1 Luminance & CVBS Inputs
Symbol
DCIN1
VIN
-I
I
Parameter
Black Level Voltage
CVBS or Y Input Voltage
Negative Clamping Current
Positive Clamping Current
Test Conditions
Input selected on main CVBS output
During SYNC pulse
Min.
Max.
20
2.5
Typ.
3.3
1
27
4.5
Min.
Typ.
Max.
0.3
0.6
1.55
1.70
1.85
0.50
0.90
1.45
V
150
µA
Max.
1.5
Unit
VPP
kW
1.41
35
7
Unit
V
VPP
µA
µA
4.5.2 Combined Chrominance & SVHS Selection Input
Symbol
V
VCLIP
Parameter
Chrominance Input Voltage
Test Conditions
Burst Amplitude, 100/75 Color Bar
Input Amplitude before Clipping
VDC
DC Voltage
VTH
SVHS Threshold Voltage
ILOW
Output Current
VPP
1
SVHS Mode
Unit
VPP
0V at CHR Pin
V
4.5.3 CVBS1 Output (Pin 29 - SDIP56)
Symbol
VOUT
RLOAD
BW
31/86
Parameter
Dynamic Output Amplitude
Output Load Resistance
CVBS Bandwidth
Test Conditions
Register 1Dhex, data = 07hex
Register 1Dhex, data = 07hex
Register 1Dhex, data = 07hex
VIN = 1 VPP
Min.
Typ.
3
10
MHz
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
Crosstalk
MGAIN
DCMAIN
Parameter
Deletion of non-selected signals
Output Gain
DC Output Voltage
Test Conditions
Register 1Dhex, data = 07hex
Up to 5 MHz
Register 1Dhex, data = 07hex
From any CVBS/Y inputs
Register 1Dhex, data = 07hex
Black Level
Min.
Typ.
Max.
50
-0.5
Unit
dB
0
0.5
4.2
dB
V
4.5.4 CVBS2 Output
Symbol
VOUT2
Dynamic Output Amplitude
ROUT2
Internal Output Resistance
BW2
Crosstalk2
SWI2gain
SWI2DC
RLOAD2
Parameter
Test Conditions
Min.
Typ.
Max.
3
W
10
CVBS Bandwidth
VIN = 1 VPP
10
Deletion of non-selected signals
Output Gain
DC Output Voltage
Up to 5 MHz
From any CVBS/Y inputs
Black Level
50
5.5
Output Load Resistance
Unit
VPP
MHz
6
3.8
6.5
1.5
dB
dB
V
kW
4.5.5 OSD RGB Inputs
Symbol
VCLAMP
VRGB
CRGB
Dblack
IRGB
Crosstalk
Parameter
Clamp Level
RGB Input Voltage
RGB Gain
Difference of black level of internal
and external signals at the RGB outputs
Clamping Current
Deletion of non-selected RGB source
Test Conditions
Max. Contrast
Min.
Max. Contrast, Max. Drive
Typ.
4
0.7
4.28
OSD signal versus internal signal
From 0 to 5 MHz
Max.
1
Unit
V
VPP
-
50
mV
60
50
100
140
µA
dB
Min.
Typ.
Max.
Unit
0.5
0.7
0.85
V
1.5
1.9
2.3
V
0.5
0.7
0.85
V
4
4.8
V
20
40
ns
4.5.6 FBOSD/HC Inputs
Symbol
Parameter
VTHFB1A
OSD Insertion Threshold Voltage
VTHFB1B
OSD Insertion Threshold Voltage
VTH-HC
Half Contrast Threshold Voltage
VTHFB2
Blanking Threshold Voltage,
Test Conditions
Half Contrast disable
Register 08hex d6 = 0
Half Contrast enable
Register 08hex d6 = 1
Half Contrast enable
Register 08hex d6 = 1
Oversize Blanking active
Register 08hex, d7 = 1
tSWI1
Insertion Switching Delay
tSWI2
Blanking Switching Delay
From FBOSD = 4V to starting of
blanking falling edge at RGB outputs
Input current
0V at Pin FBOSD
IFB
3.2
100
ns
10
µA
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.5.7 External RGB/YCrCb Inputs
Symbol
VCLAMP
VRGB
Parameter
Clamp Level
RGB Input Voltage
Test Conditions
Max. Contrast
Min.
Typ.
3.5
0.7
Max.
1
Unit
V
VPP
100% color bar
register 0Ahex d7d6 = 11
VYCrCb
YCrCb Input Voltage
Y
Cr
Cb
RGB Gain
Max. Contrast, Max. Drive
Difference of black level of internal
Dblack and external signals at the RGB out- OSD signal versus internal signal
puts
Clamping Current
IRGB
Crosstalk Deletion of non-selected RGB source From 0 to 5 MHz
VPP
1
0.7
0.7
4.28
CRGB
50
mV
60
50
100
140
µA
dB
Min.
0.5
Typ.
0.7
20
Max.
0.85
40
10
5
Unit
V
ns
µA
V
Max.
Unit
ns
ns
ns
ns
4.5.8 External Fast Blanking Input
(See Note 8)
Symbol
VTHFB
tSWI
IFB
VMAX
Parameter
Test Conditions
Insertion Threshold Voltage
Insertion Switching Delay
Input Current
0V at Pin FBEXT
Max. voltage allowed at FBEXT input
Note 8: The FBEXT input must be connected to ground if not used in the application.
4.6 LUMA PART
4.6.1 Y Delay Line
Symbol
tD1
tD2
tD3
tD4
tSHIFT
Groupdel
Parameter
Delay Time PAL/NTSC
Delay Time SECAM
Delay Time PAL/NTSC
Delay Time SECAM
Delay Time (lumDel1 - lumDel2)
Group Delay up to 3.5MHz
Test Conditions
SVHS mode, Register 1F d3 = 0
SVHS mode, Register 1F d3 = 0
CVBS mode, Register 1F d3 = 0
CVBS mode, Register 1F d3 = 0
lumDel1 = reg 1F d3 = 0, standard
luma delay
lumDel2 = reg 1F d3 = 1, shifted luma
delay
Trap-off
Min.
Typ.
520
640
560
710
140
ns
±30
ns
4.6.2 Peaking Circuit
Electrical parameter measured with color identified
Symbol
fPEAK
Parameter
Center Frequency
Gain Variation from Min. to Max.
GPEAK
peaking
Amplitude Variation compared to
Overshoot
B/W amplitude
33/86
Test Conditions
Trap-off, coring ON
Min.
2.5
Typ.
3
Max.
3.5
Unit
MHz
At fPEAK, coring ON
9
dB
2T pulse, Max. peaking, coring ON
55
%
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Amplitude Variation compared to
Pre-shoot
B/W amplitude
Amplitude Variation compared to
Aft-shoot
B/W amplitude
Coring
Coring Range compared to B/W
Test Conditions
Min.
2T pulse, Max. peaking, coring ON
Typ.
Max.
40
Unit
%
2T pulse, Max. peaking, coring ON
40
%
Coring ON
10
%
4.6.3 Black Stretch Control (Pin BS)
See Figure 12
Symbol
Test Conditions
BSth1
Parameter
Black Stretch Threshold referred to
B/W amplitude
Maximum expansion referred to
BSMax.
B/W amplitude
BSVMax. Black Stretch Control Voltage
BSVMin. Black Stretch Control Voltage
I100IRE Discharging current
I0IRE
Charging Current
Y/CVBS inputs: 0.7V B/W, No set-up
Min.
Typ.
50
Max.
Unit
%
Y/CVBS inputs: 0.7V B/W, No set-up
-15
%
Max. black stretch
No black stretch
Y = 100IRE
Y = 0IRE
2.6
3.3
8
35
V
V
µA
µA
4.6.4 Y Output
Symbol
Parameter
Yout-DC Black level
Yout-amp Black to White Amplitude
Yout-BW Luma Path Bandwidth
Yout S/N Signal to Noise Ratio (V PP/VRMS)
Test Conditions
Peaking nominal
SVHS mode/Trap-off
CVBS, PAL/NTSC 4.43MHz
CVBS, SECAM
CVBS, PAL/NTSC 3.58MHz
Bandwidth 5MHz,
Peaking Min.,coring ON
Min.
8
2.7
2.5
2.5
Typ.
3.7
0.7
Max.
0.99
3.5
3.1
3.0
Unit
VBW
V
MHz
50
dB
4.7 FILTERS
4.7.1 Y Trap Filter
Symbol
f TRAP-PN
fTRAP-S
Parameter
Notch Frequency
Notch Frequencies
Test Conditions
PAL/NTSC
SECAM fnb
SECAM fnr
Min.
Typ.
fOSC
4.2
4.5
fTRAP-ACC Notch Frequency Accuracy
QTRAP
Trap Quality Factor
CrejPN
Color Subcarrier Rejection
CrejS
Color Rejection in SECAM Mode
Max.
MHz
3.5
Q = 1/ (f0/f-3dB - f-3dB/f0), Peaking
Min.
PAL/NTSC
From 4.1 to 4.6 MHz
At 3.9 MHz
Unit
MHz
1.5
%
-
20
dB
20
dB
10
4.7.2 Chrominance Bandpass
Symbol
fBP
QBP
Parameter
Center Frequency
Bandpass Quality Factor
Test Conditions
Register 12h, d3-d0 = 0000
Min.
-5%
2.8
Typ.
fOSC
3.5
Max.
+5%
4.2
Unit
MHz
-
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.7.3 Bell Filter
Symbol
fBELL
QBP
Parameter
Center Frequency
Bell Quality Factor
Test Conditions
Register 11h, d4-d0 = 00000
Min.
4.27
14
Typ.
4.29
16
Max.
4.31
18
Unit
MHz
-
Typ.
Max.
Unit
4.8 CHROMA PART
4.8.1 ACC
Symbol
Parameter
GACC
ACC Control Range
VMin.
Minimum Burst Signal Amplitude
Test Conditions
Change of burst overall ACC control
range < 2dB
Within the ACC control range
Min.
26
dB
0.03
VPP
4.8.2 ACC Overload
Symbol
VTH
Parameter
Chroma regulation Threshold
Test Conditions
Min.
ACC overload ON, PAL/NTSC
Typ.
Max.
3
Unit
dB
4.8.3 Killer
Symbol
Parameter
Ident-kill
Color on Threshold of ident. circuit
Test Conditions
Burst amplitude on selected CVBS
input
Kill-Hyst
Color off Killer Hysteresis
Strong signal condition, S/N > 40 dB
Min.
Typ.
Max.
Unit
5
mVPP
2
mVPP
4.8.4 Chroma PLL
Symbol
Parameter
CaptR
Catching Range
HoldR
Holding Range
Test Conditions
With recommended crystal and recommended CLPF filter value.
Min.
Typ.
Max.
Unit
±300
> or = to capture range
4.8.5 PLL Loop Filter (PAL/NTSC)
Symbol
Parameter
IC
Maximum Control Current
IL
Leakage Current
Frange-W
Auto Flesh Control
Test Conditions
Min.
Color search mode (colour not ident.)
Color identified
Typ. Max.
1000
350
5
Register 14(HEX), d6 = 1, d7 = 1
±90
Unit
µA
µA
Deg
4.8.6 Hue Control
Symbol
RHUE
Parameter
Test Conditions
Hue Control Range
Min.
Typ.
Max.
Unit
±35
±45
±55
Deg
Min.
Typ.
118
Max.
Unit
Deg
4.8.7 Automatic Flesh Control
Symbol
Parameter
FleshNom. Nominal Flesh Tint Phase
Phase Correction when Auto Flesh
Fcorr0
ON
FMax.-N Maximum Phase Correction
Chroma Input Phase at Max. corFlesh-N rection
Frange-N Auto Flesh Control Range
35/86
Test Conditions
At FleshNom
0
Deg
Register 14(HEX), d6 = 1, d7 = 0
±10
Deg
Register 14(HEX), d6 = 1, d7 = 0
±30
Deg
Register 14(HEX), d6 = 1, d7 = 0
±60
Deg
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
FMax.-W
Flesh-W
Frange-W
Parameter
Maximum Phase Correction
Chroma Input Phase at Max. correction
Auto Flesh Control
Test Conditions
Register 14(HEX), d6 = 1, d7 = 1
Min.
Typ.
±20
Max.
Unit
Deg
Register 14(HEX), d6 = 1, d7 = 1
±45
Deg
Register 14(HEX), d6 = 1, d7 = 1
±90
Deg
4.8.8 Color Demodulators
Symbol
DoffsetP
DoffsetS
PhaseErr
TransPal
transSEC
Naxis
Parameter
Test Conditions
Demodulator Offset
PAL/NTSC mode, 75% color bar
Demodulator Offset
SECAM mode, 75% color bar
Phase Error in demodulated signal PAL/NTSC mode, 90% matrix
PAL mode, 75% color bar greenChroma Transient Time
magenta transient
SECAM mode, 75% color bar greenChroma Transient Time
magenta transient
R-Y Demodulation Axis
NTSC mode, 104° matrix
Min.
Typ.
Max.
±2
±2
5
Unit
%
%
Deg
700
ns
900
ns
104
Deg
4.8.9 Chroma Delay Line
Symbol
Cdelay
Ctrans
Dgain
Parameter
Delay of delayed signals
Difference of transient times between delayed and non delayed
signals
Test Conditions
Relative to non delayed signal
SECAM mode. tRN -tRN+1
tRN: rise time line N (direct)
tRN+1: rise time line N +1 (delayed)
SECAM mode. Gn+1/Gn
Differential Gain of delayed signals
Gn: direct channel gain
versus direct signals
Gn+1: delayed channel gain
Min.
63.9
Typ.
64
Max.
64.1
Unit
µs
150
ns
-0.5
0
0.5
dB
Min.
Typ.
Max.
Unit
4.8.10 Chroma Reference Output
Symbol
CHR-amp
ISCHR
Parameter
Chroma VCO Reference Signal
Amplitude
Test Conditions
Sink Current
0.4
VPP
0.5
mA
4.9 SCANNING PART
4.9.1 Synchronization Separator
Symbol
VSYNC
Parameter
Synchronization Pulse Amplitude
Test Conditions
Min.
50
Typ.
300
Max.
450
Unit
mV
Test Conditions
50 Hz mode
60 Hz mode
Low Frequency
High Frequency
Min.
Typ.
15.6
15.7
15.0
16.3
15.6
Max.
Unit
kHz
kHz
4.9.2 Horizontal Oscillator
Symbol
fH50
fH60
Parameter
Horizontal Frequency
Horizontal Frequency
fRANGE
Frequency Control Range
fFREE
Free Frequency when PLL1 opened
14.7
15.9
15.3
15.3
—
15.9
kHz
kHz
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.9.3 First Loop Filter
Symbol
ILOW
Min.
Typ.
Max.
Long Time Constant Output Current
Parameter
Test Conditions
0.10
0.13
0.16
Unit
mA
IHIGH
Short Time Constant Output Current
0.30
0.40
0.56
mA
IVLOW
Very Long Time Constant
0.03
0.05
0.07
mA
Min.
Typ.
0 to
12
Max.
Unit
5
5.25
4.9.4 Second Loop Filter
Symbol
Parameter
Test Conditions
Control Range from start of horizonCrangeP2 tal output to flyback pulse
Centered horizontal position
HSHIFT
Horizontal Position Control Range
HDRIFT
Horizontal Drift with temperature
From 0°C to 70°C (see Note 9)
µs
µs
200
ns
Note 9: This parameter is not tested during production, it is tested during the qualification phase.
4.9.5 Line Flyback Input/Super-Sandcastle Output
Symbol
VBURST
VLINE
VVERT
Twbg
Tdbg
Tvert
VTHLINE
I
Parameter
Test Conditions
Output Voltage during Burst Key
Clamped Input Voltage during Line
Flyback
Output Voltage during Vertical pulse
Burst key Pulse Width
Delay of start of burst key to start of
sync.
Vertical Pulse Width
PLL2 and Line Blanking Threshold
Vthline/Vline
Voltage referred to line level Vline
Input Current
Min.
4.8
Typ.
5.3
Max.
5.8
Unit
V
2.6
3
3.4
V
1.8
2
3.8
2.2
V
µs
5.2
µs
10.5
lines
83
%
0.1
1
mA
Max.
30
0.4
6.5
0.7
10
10
Unit
µs
V
V
V
mA
V
4.9.6 Horizontal Output
Symbol
tW
VLOW
VCCSTART
VCCSTOP
IMax.
VMax.
Tss
Parameter
Test Conditions
Output Pulse Width
Low Output Voltage
ISINK = 5mA
VCC Start Level
VCC Stop Level Hysteresis
VCCSTART - VCCSTOP
Maximum allowed Output Current
Maximum allowed Output Voltage
Output Pulse Duty Cycle in soft-start
mode (tHIGH/(tHIGH+tLOW)
Min.
26
Typ.
28
5.5
0.5
6
0.6
75
%
4.9.7 Vertical Output
Symbol
tW
VLOW
fLOCK
fFREE-50
fFREE-60
37/86
Parameter
Output Pulse Width
Low Output Voltage
Looking Range
Free Frequency (no Video signal)
Free Frequency (no Video signal)
Test Conditions
Reg 19, d0 = 1
Reg 19, d0 = 0
Min.
1.5
Typ.
10.5
2
0.1
248
50-Hz Forced or 50-Hz Auto mode
60-Hz Forced or 60-Hz Auto mode
314
264
Max.
2.5
0.5
352
Unit
Lines
V
Lines
Lines
Lines
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
VHIGH
ISINK
ISOURCE
Parameter
Test Conditions
High Level Range Vertical Position Min. position control
Control
Max. position control
Output Sinking Current
Output Source Current
Min.
3.5
6.0
0.7
0.7
Typ.
4
6.5
1.0
1.0
Max.
4.5
7.0
Unit
Test Conditions
Min. amplitude voltage
Max. amplitude voltage
Min.
1.2
5.5
Typ.
1.5
6.0
Max.
1.7
6.5
Unit
Test Conditions
4.43 MHz crystal on pin XTAL1
3.58 MHz crystal on pin XTAL1
Min.
80
Typ.
Max.
Unit
kW
kW
V
mA
mA
4.9.8 Vertical Amplitude Control
Symbol
VAMP
Parameter
Output Voltage Range
V
4.9.9 Crystal Detection
Symbol
R4.43
R3.58
Parameter
Load resistance at pin VAMP
Load resistance at pin VAMP
10
4.10 RGB CONTROL PART
4.10.1 Y Input
Symbol
YINdc
Yin-B/W
Yin-cur
Parameter
Black Level
Black to White Amplitude
Input Current
Test Conditions
Min.
Typ.
3.7
0.7
Max.
Typ.
3.7
1.33
1.05
Max.
2.0
2.0
1
Unit
V
VPP
VPP
µA
Min.
21
Typ.
24
Max.
27
Unit
dB
10
12
14
dB
Min.
Typ.
Max.
Unit
6
9
12
dB
1
1
Unit
V
V
µA
4.10.2 U & V Inputs
Symbol
UVin-dc
Uin-amp
Vin-amp
UVin-cur
Parameter
Black Level
B-Y Amplitude
R-Y Amplitude
Input Current
Test Conditions
Min.
75% color bar PAL/SECAM
75% color bar PAL/SECAM
4.10.3 Contrast Control
Symbol
Yctr
OSDctr
Parameter
Contrast Range on Y signal
Contrast Range on OSD RGB signal
Test Conditions
4.10.4 Saturation Control
Symbol
Parameter
SATMax.
Maximum Saturation Control
SAT Min.
Minimum Saturation Control
Test Conditions
75% color bar PAL/SECAM,
0 dB for data 20 in reg 08
75% color bar PAL/SECAM,
0 dB for data 20 in reg 08
-40
dB
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.10.5 Brightness Control
Symbol
Parameter
Brightness Control Range referred
Bright
to B/W amplitude on RGB outputs
Nominal Black Level at RGB outputs. Difference between black levBlacknom
el VBLACK and inserted cut-off pulse
level VCO: VBLACK - VCO
Test Conditions
At Max. Contrast, APR OFF
Min.
Typ.
Max.
Unit
50
60
70
%
BS mode, Max. Contrast.
(VBLACK - VCO )/V_BW
V_BW: black to white amplitude at
RGB outputs.
-12
%
4.10.6 RGB Matrix
Symbol
Parameter
G/R
(G-Y)/(R-Y)
G/B
(G-Y)/(B-Y)
R/Bntsc
(R-Y)/(B-Y)
G/Rntsc
G/Bntsc
(G-Y)/(R-Y)
(G-Y)/(B-Y)
Test Conditions
Min.
PAL/SECAM matrix measured on R,
-0.40
G outputs PAL DEMpattern
PAL/SECAM matrix measured on G,
-0.15
B outputs PAL DEMpattern
NTSC mode, 104° matrix input signal:
U = V measured on R, B outputs
NTSC mode, 104° matrix
NTSC mode, 104° matrix
Typ.
Max.
Unit
-0.51
-0.62
-
-0.19
-0.23
-
0.9
-
-0.29
-0.22
-
4.10.7 Drive Adjustment (White Point Adjustment)
Symbol
WPrange
Parameter
White Point Adjustment Range
Test Conditions
On RGB outputs
Min.
Typ.
6
Max.
Unit
dB
Min.
Typ.
Max.
Unit
4.10.8 Cut-Off Adjustment (Black Point Adjustment)
Symbol
COadjust
COloop
COlevel
Parameter
Cut-off Adjustment Range
Cut-off Loop Range
Inserted Cut-off Level
Test Conditions
On Red and green outputs at Typ.
drive, no load
On RGB outputs
420
mV
2
1.5
2.5
2.5
3.5
V
V
Min.
Typ.
Max.
Unit
3.75
4
V
210
250
290
mV
4.1
4.3
4.10.9 Cathode Current Input
Symbol
VLEAK
VCOFF
VSBEAM
ISOURCE
Parameter
Leakage Current Reference Voltage
Cut-off Current Reference Voltage
referred to leakage current reference VLEAK
Start Beam Current Detection Reference Voltage
Source Current
Test Conditions
V
150
µA
4.10.10 Beam Current Limiter Input
See Figure 14 on page 42 and Figure 15 on page 42.
Symbol
VTH1
VTH2
VTH3
CTRbcl
VTH4
39/86
Parameter
Contrast Attenuation Starting
Brightness Attenuation Starting
Contrast Attenuation Ending
Contrast Attenuation at VTH3
Brightness Attenuation Ending
Test Conditions
Min.
Typ.
5.75
5.5
5.25
14
4.5
Max.
Unit
V
V
V
dB
V
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
BRIGbcl
Clp
SAF-thr
SAF-hold
Parameter
Brightness Attenuation at VTH4
High Clamping Voltage
Safety Threshold
Supply Hold Voltage
Test Conditions
Referred to VCC1
Min.
100
6.5
0.8
3
Typ.
Max.
1
1.2
Min.
Typ.
Max.
Unit
%
V
V
V
4.10.11 Automatic RGB Peak Regulation (APR) / RGB Peak Limitation
See Figure 16 on page 42.
Symbol
Parameter
Test Conditions
WR10 d0 = 1
Contrast Max., drive Max., no load
Maximum Output Level on RGB
APR/RGB
APR threshold Min. (50IRE)
outputs when APR/RGB Peak LimiPeak
APR threshold 70IRE
tation ON
APR threshold Max. (100IRE) (see
Note 10)
iAPR-D
Discharging Current
Charging Current
iAPR-C
APR ON = WR10 d0 = 1
RGB output amplitude with APR ON
GAPRMAX APR max gain
versus RGB output amplitude with
APR OFF
APR ON = WR10 d0 = 1
RGB output amplitude with APR ON
GAPRMIN APR min gain
versus RGB output amplitude with
APR OFF
2.14
3.0
4.28
Unit
V
5.5
5.25
µA
mA
+2.5
dB
-3.0
dB
Note 10: At maximum contrast, APR and RGB peak limitation have the same characteristics. The APR regulation level
is tracked on contrast. The RGB peak limitation level is not tracked on contrast.
40/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.10.12 RGB Outputs
Symbol
Parameter
VB/W
Output Signal Amplitude B/W
VBLUE
Output Signal Amplitude
Test Conditions
0.7V B/W on Y/CVBS inputs, Contrast
Max., Drive Max., Saturation and
bright Nom., APR OFF, no load
75/100 color bar, no Y nom. settings,
APR OFF, no load
ISINK
Output Sinking Current
ISOURCE Output Source Current
Internal Output Resistance
ROUT
No load
VBLANK Blanking Level
High Clipping Level
No load
VCLIP
Black-ctr Variation of black level with contrast
Variation of black level with saturaBlack-sat
tion
20dB contrast variation
Relative Variation in black level beRel-Black
Overall brightness range
tween the three channels
±5% VCC1
Black-T Black Level Thermal Drift
At typical saturation
Tracking between Luminance and
Track
From Max. Contrast (0 dB) to -10 dB
Chrominance signals
Contrast
YUV inputs to RGB outputs
Bwidth
Bandwidth of output signals at -3dB OSD RGB inputs to RGB outputs
EXT. RGB inputs to RGB outputs
Min.
1.2
Typ.
Max.
Unit
2.8
V
1.5
VPP
1.5
30
mA
mA
W
V
V
mV
50
mV
20
mV
1.8
150
0.2
6.8
0.4
1
mV/°C
2
6
6
5
dB
8
8
6
MHz
Figure 13. Auto Flesh Characteristics
Figure 12. Black Stretch Static Characteristics
(IRE)
Y OUT (%)
20
Phase Correction (Deg)
Wide Response
10
100
0
Narrow
Response
50
-10
Chroma Input
Phase (Deg)
-20
0
0
-15
41/86
50
Y IN(%)
100
30
60
90 120 150 180 210
240
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Figure 14. Beam Current Limiter
Characteristics (Contrast)
Figure 15. Beam Current Limiter
Characteristics (Brightness)
Brightness (%)
Contrast (dB)
100
0
0dB Max.
-6dB
-6
-10dB
50
-12
-18dB
-18
V BCL (V)
-24
V BCL (V)
0
4.5
5
5.5
6
6.5
4.5
5
5.5
6
6.5
Figure 16. Automatic RGB Peak Regulation (APR) / RGB Peak Limitation Characteristics
Output Level
RGB Peak Limitation Curve or
APR Threshold max. (100 IRE)
and contrast max.
APR Threshold min. (50 IRE)
and contrast max.
APR Threshold max. (100 IRE)
and contrast min.
APR Threshold min. (50 IRE)
and contrast min.
Input Level (IRE)
0
50
100
150
Figure 18. Non-Linear Volume Control Curve
(6 bits, reg. 05 d6-d1, reg. 05 d7 = 1)
0
Volume Control Attenuation (dB)
Volume Control Attenuation (dB)
Figure 17. Linear Volume Control Curve
(7 bits, reg. 05 d6-d0, reg. 05 d7 = 0)
-20
-40
-60
-80
0
50
100
Code (decimal)
150
0
-20
-40
-60
-80
0
10
20
30
40
50
60
70
Code (decimal)
42/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.11 I²C BUS CHARACTERISTICS
4.11.1 SCL
Symbol
VIL
VIH
ILI
fSCL
tR
tF
CI
Parameter
Low Level Input Voltage
High Level Input Voltage
Input Leakage Current
Clock Frequency
Input Rise Time
Input Fall Time
Input Capacitance
Test Conditions
VIN = 0 to VCC
Min.
-0.5
3
-10
0
Typ.
Max.
1.5
VCC+0.5
10
100
1.000
300
10
Unit
V
V
µA
kHz
ns
ns
pF
Min.
-0.5
3
-10
Typ.
Max.
1.5
VCC+0.5
10
10
1.000
300
0.4
250
400
10
Unit
V
V
µA
pF
ns
ns
V
ns
pF
pF
1.5V to 3V
1.5V to 3V
4.11.2 SDA
Symbol
VIL
VIH
ILI
CI
tR
tF
VOL
tF
CL
CI
Parameter
Low Level input Voltage
High Level input Voltage
Input Leakage Current
Input Capacitance
Input Rise Time
Input Fall Time
Low Level Output Voltage
Output Fall Time
Load Capacitance
Input Capacitance
Test Conditions
VIN = 0 to VCC
1.5V to 3V
1.5V to 3V
IOL = 3mA
3V to 1.5V
4.11.3 I²C Timing
Symbol
tLOW
tHIGH
tSU,DAT
tHD,DAT
tSU,STO
tBUF
tHD,STA
t SU,STA
Parameter
Clock Low period
Clock High period
Data Set-up Time
Data Hold Time
Set-up Time from Clock High to
Stop
Start Set-up Time following a Stop
Start Hold Time
Start Set-up Time following Clock
Low to High Transition
Test Conditions
Min.
4.7
4
250
0
Typ.
Max.
340
4
µs
4.7
4
µs
µs
4.7
µs
Figure 19. I²C Bus Timing
SDA
t BUF
t LOW
t SU,DAT
SCL
t HD,STA
SDA
43/86
tR
t SU,STA
t HD,DAT t HIGH
tF
Unit
µs
µs
ns
ns
t SU,STO
STV224XH/228XH/223XH - I²C BUS SPECIFICATIONS
5 I²C BUS SPECIFICATIONS
Data transfers follow the usual I²C format: after the start condition (S), a 7-bit slave address is sent, followed by an eighth bit which is a data direction bit (W). An 8-bit sub-address is sent to select a register, followed by an 8-bit data word to be included in the register.
The IC’s I²C bus decoder permits the automatic incrementation mode in write mode.
The circuit operates up to clock frequencies of 400 kHz.
String Format
Write only mode (S = start condition, P = stop condition, A = acknowledge)
S
SLAVE ADDRESS
0
A
1
A
SUB-ADDRESS
A
DATA
A
P
A
DATA 3
A
P
Read only mode
S
SLAVE ADDRESS
DATA 0
A
DATA 1
A
DATA 2
Slave Address
Address
A7
A6
A5
A4
A3
A2
A1
A0
Value
1
0
0
0
1
0
1
X
Write Address:
Read Address:
10001010
10001011
44/86
STV224XH/228XH/223XH - I²C BUS SELECTION
6 I²C BUS SELECTION
6.1 SUMMARY INPUT SIGNALS (WRITE MODE)
“Not-to-be-used” data must be set to “0”.
Reg.
Addr.
(Hex)
Data D7
Data D6
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
Data D4
Data D3
Data D2
Data D1
PIF
AFC
Over-moduDefeat
lation
CVBS Out- Overmoduput
lation Reset
Tuner AGC gain
Intercarrier QSS and AM
Filter ON/
demod
OFF
defeat
L/L’ Mode
NEG/POS
Modulation
Not to be
used
PIFVCO Free Running Coarse Adjustment
INTCVBS Output Amplitude Adjustment
Tuner AGC Starting Point Adjustment
FM/AM
Output
Selection
(Note 1)
FM Demod.
Defeat
Volume
Control
Curve
Not to be
used
Data D0
Not to
be used
PIFVCO Free Running Fine Adjustment
FM Deviation and FM
De-emphasis, Audio FM
Wide mode (Note 1)
Main Audio Output
selection (int./ext.)
Volume Control
QSS/
CVBS Mute
Inter-carrier
Not to be
used
(SDIP56)
SAW Filter
Switch
(TQFP64)
RGB Peak
Limitation
(Note 2)
Oversize
Half
Blanking
Contrast
RGB
CO Blanking
Blanking
RGBext/YCrCb Insertion
(Note 2)
NTSC SetBlack
up
Stretch
LSB RED
Cut-off
CO Freeze
Counter
Manual Cut-off Selection
LSB GREEN
Not to be
Cut-off
used
Counter
Blue Screen
0F
White insertion ON/OFF
CVBS2
ON/OFF
10
White
Insertion
(Note 2)
CRT/LCD
Display
45/86
Data D5
AGC SIF
Time Constant
Sound
Standard Selection
PIF VCO
compensation
Contrast
Saturation
Brightness
Red Drive Adjustment
Green Drive Adjustment
Blue Drive Adjustment
Red Cut-off Adjustment
Green Cut-off Adjustment
Chroma
Trap ON/
OFF
(Note 1)
RGBosd
Contrast
Selection
Coring
ON/OFF
Peaking
APR Threshold
APR on/off
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
Data D7
Data D6
11
ACCO
ON/OFF
NTSC 104
Matrix
12
Not to be used
13
Not to be used
Flesh Char.
15
Safety Reset
17
18
19
Data D2
Data D1
Not to be used
HOUT
Disable
50/60Hz Selection
Vertical
Line Sync
Sync
ON/OFF
ON/OFF
AV Mode
Copy
Time
Protection
Constant
Mode
(Note 2)
(Note 2)
Data D0
3rd Crystal
Hue
SVHS switch
Interlace
1E
Data D3
PAL/NTSC
Demod.
Bell Filter Shift
Gain
Chroma DL Chroma Out
Bandpass Shift
ON/OFF
ON/OFF
Crystal InChroma Standard Selecput Pin DisaCrystal Selection
tion
ble
Second Video Switch Control
Main Video
Switch Control
Horizontal Shift
Vertical Amplitude
PLL1 Time Constant
Wide Line
Blanking
(Note 2)
1A
1B
1C
1D
1F
Data D4
Flesh
ON/OFF
14
16
Data D5
Not to be
Used
Vertical Position
Noise Detector
Threshold
Manual Cut-off Register - Red
Manual Cut-off Register - Green
Manual Cut-off Register - Blue
CVBS1out
AGC SIF
Time
Constant
Not to be used
Audio Out
(Mono or Sound
subcarriers)
AVL
Long
Blanking
Vertical
Output Low
Level
Control
Not to be used
Luma Delay
Shift
Not to be
used
Sound
Status
Refresh
VERT Output Inhibition
Data D3
Data D2
Data D1
Data D0
Video Ident.
Status
Field Lock
Status
50/60 Hz
Status
Power ON
Reset
Note 1: Specification changed versus STV223XD/224XC.
Note 2: New feature versus STV223XD/224XC.
6.2 SUMMARY OUTPUT SIGNALS (READ MODE)
Reg.
Addr.
(Hex)
00
01
02
03
Data D7
Data D6
Chroma Standard
Selection Status
FM Dem.
Scanning
VCO Cal.
VCO Cal.
Status
Status
Cut-off loop status
Tuner AGC
Output Status or AVL
Gain Status
Data D5
Data D4
Crystal Selection Status
Test
FBext DeSafety
Not to be
tection
Status
Used
FM Sound Carrier Levels
Horizontal Noise DetecLock Status tor Status
SVHS
Status
Digital AF Status
IC Identification
46/86
STV224XH/228XH/223XH - I²C BUS SELECTION
6.3 INPUT SIGNALS (WRITE MODE)
Not used data bits must be set to “0”.
6.3.1 PIFVCO Free Running
Reg.
Addr.
Description
(Hex)
00
PIFVCO
Free Running
Fine Adjustment
Not to be used
Data
Bits
7
1
Comments
d7 d6 d5 d4 d3 d2 d1 d0
0
1
1
X
0
0
1
X
0
0
1
X
0
0
1
X
0
0
1
X
0
0
1
X
0
0
1
X
X
X
X
0
PIF Typical + 0.7 MHz.
PIF Free Running mid range.
PIF Typical - 0.7 MHz.
6.3.2 PIF Free Running Coarse
Reg.
Addr.
Description
(Hex)
01
PIFVCO Free
Running Coarse
Adjustment for
38.9 MHz Carrier
PIFVCO Free
Running Coarse
Adjustment for
33.9 MHz Carrier
(L’)
PIF Modulation
L/L’ Standard
Selection
Digital AFC Defeat
PIF
Over-modulation
Data
Bits
Comments
d7 d6 d5 d4 d3 d2 d1 d0
4
X
X
X
X
X
X
0
0
0
X
X
X
0
0
1
0
1
1
0
1
1
0
1
1
PIFVCO = F0 + 2.0 MHz.
PIFVCO = F0 (mid range).
PIFVCO = F0 - 1.8 MHz.
4
X
X
X
X
X
X
1
1
1
1
1
1
0
0
1
0
1
1
0
1
1
0
1
1
PIFVCO = F0 + 1.3 MHz.
PIFVCO = F0 (mid range).
PIFVCO = F0 - 1.2 MHz.
X
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
1
1
1
1
= Negative Modulation.
= Positive Modulation.
= L Standard.
= L’ Standard.
= AFC Active.
= AFC Defeat (read register 02, d2 d1 d0 = 000).
= Over-modulation detection off.
= Over-modulation regulation active.
6.3.3 PIF Features
Reg.
Addr.
(Hex)
02
Data
Description
CVBS Output Amplitude
5
d7 d6 d5 d4 d3 d2 d1 d0
Comments
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
X
0
0
1
X
0
0
1
X
0
0
1
X
0
0
1
X
VTyp. - 1.6 dB.
VTyp. = 1.6 V (black / white).
VTyp.+ 1.5 dB.
0 = Normal Operating Mode
Not to be used
1
Overmodulation
Reset
1
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
CVBS Output
47/86
Bits
1 = Overmodulation Reset
0 = 2 VPP, no external sound trap.
1 = 2.3 VPP, external sound trap.
STV224XH/228XH/223XH - I²C BUS SELECTION
6.3.4 Tuner Delay
Reg.
Addr.
(Hex)
03
Data
Description
Bits
6
Tuner AGC Starting
Point Adjustment
Comments
d7 d6 d5 d4 d3 d2 d1 d0
X
X
X
0
0
1
1
2
Tuner AGC Gain
X
X
X
0
1
0
1
0
1
1
X
X
X
X
0
0
1
X
X
X
X
0
0
1
X
X
X
X
0
0
1
X
X
X
X
0
0
1
X
X
X
X
0
0
1
X
X
X
X
Min. Start point 2 mVRMS at PIF input.
Typ. Start point 12 mVRMS at PIF input.
Max. Start point 80 mVRMS at PIF input
50 µA/dB.
95 µA/dB.
170 µA/dB.
270 µA/dB.
6.3.5 SIF Features and Audio Switches
Reg.
Addr
(Hex)
Data
Description
Bits
04
2
Main Audio Output
05
Comments
d7 d6 d5 d4 d3 d2 d1 d0
FM De-emphasis
Switch and FM deviation range control
2
FM Demodulator
defeat
AM/FM output selection
QSS and AM demodulator defeat
Intercarrier filter
ON/OFF
Volume Control
Attenuation,
Linear curve (dB)
Volume Control
Attenuation,
Non-linear curve
(d0 = 0, d7 = 1)
1
1
1
1
7
6
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
X
X
X
0
1
0
1
0
0
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
0
1
0
0
X
X
X
X
0
1
X
X
0
1
X
X
0
1
X
X
X
X
0
1
0
1
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
FM/AM audio selected.
External audio selected.
MUTE selected.
Automatic control, according to sound standard.
De-emphasis at 75 µs and FM deviation at ±25 kHz.
De-emphasis at 50 µs and FM deviation at ±50 kHz.
Audio FM Wide mode &50 µs De-emphasis (BGDKI).
To be used with 224xH version only in QSS architecture.
0 = FM Demodulator active.
1 = FM Demodulator defeat, FM out muted.
0 = FM output selected.
1 = AM output selected and FM demod OFF.
0 = QSS and AM demod active,
1 = QSS and AM demod not active (OFF)
0 = Intercarrier filter ON
1 = Intercarrier filter OFF
Attenuation = 0 dB.
Attenuation = 78 dB.
7-bit resolution.
Attenuation = 0 dB.
Attenuation = 78 dB.
6-bit resolution.
48/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr
(Hex)
06
Data
Description
Bits
Comments
d7 d6 d5 d4 d3 d2 d1 d0
PIF VCO Compensation
1
2
Sound Standard
Selection
AGC SIF time
constant (AM)
SAW filter switch
output
CVBS output
(from PIF circuit)
QSS/Inter-carrier
Application
Not to be used
1
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
0
0
1
1
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Optimized for PIF from 33.9 to 38.9 MHz
1 = Optimized for PIF 45.75 & 58.75 MHz
6.5 MHz sound selected.
6.0 MHz sound selected.
5.5 MHz sound selected.
4.5 MHz sound selected.
0 = Auto Time constant.
1 = Fast Time constant forced.
0 = output low (0.4 V Max.).
1 = output high (4 V Min.).
0 = CVBS output enable.
1 = CVBS output muted.
0 = QSS application, intercarrier filter OFF
1 = Intercarrier application
6.3.6 Video Controls
Reg.
Addr
(Hex)
07
Data
Description
Contrast Control
Blue Screen
Feature
Saturation Control
Half Contrast Enable
Oversize Blanking
Enable
09
Comments
d7 d6 d5 d4 d3 d2 d1 d0
RGB Peak
Limitation
08
Bits
Brightness Control
RGB Blanking
6
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
1
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
1
6
1
1
6
1
1
0
1
X
X
X
X
0
1
X
X
X
X
0
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
1
X
X
X
X
X
X
X
Cut-off Blanking
49/86
-24 dB gain (Min. contrast).
0 dB gain (Max. contrast).
0 = APR, APR Threshold, tracked with contrast.
1 = RGB Peak Limitation, threshold not tracked with
contrast.
Note: RGB Peak Limitation active when WR10 d0 =
1
0 = Blue screen OFF.
1 = Blue screen ON.
-40 dB gain (Min. saturation).
+9 dB gain (Max. saturation).
0 = Disabled.
1 = Enabled.
0 = Disabled.
1 = Enabled.
-30% of B/W at Max. contrast.
+30% of B/W at Max. contrast.
0 = Not active (normal operation).
1 = Active.
0 = Enable: RGB output blanked when ICATH voltage
is far from internal cut-off reference (cut-off loop not
locked), during IC start-up.
1 = Disable: RGB output not blanked by cut-off loop.
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr
(Hex)
0A
Data
Description
Bits
Red Drive Adjust
(White Point R)
6
X
X
0
X
X
0
0
1
X
0
1
X
0
1
X
0
1
X
0
1
X
0
1
X
0
1
1
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
-6 dB gain (Min. drive).
0 dB gain (Max. drive).
RGB ext. insertion enable controlled by FBext input
pin.
RGB ext. insertion disable, FBext control disable.
RGB ext. insertion forced (FBext not active).
YCrCb insertion forced.
if WR0F d5 = 0 : Y on Gext (Luminance input) and
CVBSin (for synchro).
if WR0F d5 = 1 : Y on CVBSin (for luminance and
synchro), Cr on Rext, trap and luma delay disabled.
6
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-6 dB gain (Min. drive).
0 dB gain (Max. drive).
1
X
X
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
6
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-6 dB gain (Min. drive).
0 dB gain (Max. drive).
1
X
X
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Cut-off loop active.
1 = Cut-off loop frozen.
Red LSB = 0
Red LSB = 1
6
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-150 mV.
+150 mV.
2
0
0
X
X
X
X
X
X
1
1
X
X
X
X
X
X
0
1
1
0
X
X
X
X
X
X
X
X
X
X
X
X
Automatic Cut-off application, data = 00hex in
registers 1A,1B, 1C.
Manual cut-off application DC at R,G,B output are
adjusted thanks registers 1A, 1B, 1C.
Not allowed.
Not allowed.
6
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-150 mV.
+150 mV.
1
X
0
1
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
0
1
X
X
X
X
X
0
1
X
X
X
X
X
0
1
X
X
X
X
X
0
1
X
X
Green LSB = 0
Green LSB = 1
0 dB at center Freq. Min. peaking.
+ 6dB at center Freq.Max. peaking.
0 = Coring off.
1 = Coring on.
2
RGBext/YCrCb
Selection
0B
0C
Green drive adjustment
(white point G)
Black stretch enable
Black Stretch
Reference Level
Blue drive adjustment
(white point B)
Cut-off loop control
0D
LSB (9th bit) Red
cut-off counter
Red cut-off adjustment (Black point
R)
1
1
Manual Cut-off Selection
0E
0F
Comments
d7 d6 d5 d4 d3 d2 d1 d0
Green cut-off adjustment (Black
point G)
Not to be used
LSB (9th bit) Green
cut-off counter
Peaking Control
1
4
1
= Black stretch disable.
= Black stretch enable.
= 0 IRE (no set-up).
= 7.5 IRE (NTSC set-up).
Coring on sharpness
Chroma Trap and
Luma Delay Selection
CVBS2 ON/OFF
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = Trap and Luma Delay Enabled.
1 = Trap and Luma Delay Disabled.
1
White Insertion
1
X
X
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
= CVBS2 output Enabled.
= CVBS2 output Disabled.
= White insertion not active.
= White insertion enable during HOUT soft mode.
50/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr
(Hex)
10
Data
Description
Bits
Comments
d7 d6 d5 d4 d3 d2 d1 d0
APR Enable
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
APR Threshold
4
RGB OSD Contrast Selection
CRT/LCD Display
1
1
X
X
X
X
X
X
X
X
X
X
0
1
X
X
0
1
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
White Insertion
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = APR disable.
1 = APR enable.
Note: WR10 d0 to be set to 1 when RGB peak limitation is used
50 IRE.
100 IRE.
0 = Contrast control disable.
1 = Contrast control enable.
0 = RGB output blanking active, CRT Display
1 = RGB output blanking replaced by black level,
LCD Display
White Insertion controlled by WR0Fd7
White forced at RGB Output
6.3.7 Chroma Controls
Reg.
Addr.
(Hex)
11
12
Data
Description
Bell Filter Adjust
Bits
5
PAL/NTSC
Demodulation Gain
1
NTSC Matrix
1
ACC Overload Disable
1
Bandpass adjust
Chroma reference output
Chroma DL selection
Not to be used
4
1
1
2
2
Crystal Selection
2
13
Standard Selection
2
Crystal Inhibition
Not to be used
51/86
2
d7 d6 d5 d4 d3 d2 d1 d0
X
X
X
X
X
X
0
1
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
X
X
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
X
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
0
0
1
1
1
1
X
X
X
X
X
X
0
1
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
0
1
0
0
0
1
X
X
X
X
X
X
0
1
X
X
X
X
X
X
0
1
X
X
X
X
X
0
0
1
1
X
X
0
0
1
X
1
X
X
X
X
X
0
1
X
X
X
X
X
X
0
1
X
X
X
X
X
0
1
0
1
X
X
0
1
0
X
1
X
X
X
X
X
0
1
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
0
X
X
X
X
0
1
0
1
X
Comments
0 kHz.
+100 kHz.
0 = 0 dB gain (nominal).
1 = +6 dB gain.
0 = 90° matrix selection.
1 = 104° matrix selection (in NTSC only).
0 = ACC overload active.
1 = ACC overload disable.
f = fosc.
f = 1.1*fosc.
0 = Chroma reference output OFF.
1 = Chroma reference output ON.
0 = ON.
1 = OFF.
XTAL1 (4.43/3.5XX MHz).
XTAL2 (3.5XX MHz).
XTAL3 (3.5XX MHz).
Not allowed.
PAL.
NTSC.
SECAM (only with XTAL1).
Not allowed.
Not allowed.
AUTO mode.
Not allowed
Two-crystal, P/S/N application.
Three-crystal, P/N application.
One-crystal, P/S/N 4.43 MHz application.
Two-crystal, P/N application.
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
Description
(Hex)
14
Hue Control
(in NTSC only)
Flesh Enable
Wide Flesh CharacTeristic Selection
15
Data
Bits
6
1
1
2
Main Video Switch
2
Second Video Switch
Control
SVHS Switch Chroma
Decoder Input Selection
Not to be used
Safety Reset
1
2
1
d7 d6 d5 d4 d3 d2 d1 d0
Comments
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
X
X
X
X
X
X
X
0
0
1
1
X
X
0
1
X
X
X
X
X
X
X
0
1
0
1
X
X
0
1
X
X
X
X
0
0
1
X
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
X
X
-45°.
+45°.
0 = Flesh disable (OFF).
1 = Flesh enable (ON).
0 = Normal characteristic.
1 = Wide characteristic.
CVBS1 selected.
CVBS2 selected.
Y/CVBS3 selected.
CVBS1 selected.
CVBS2 selected.
Y/CVBS3 selected.
Y+C selected.
0 = Main CVBS selected.
1 = CHR input selected (SVHS).
X
0
1
0
X
X
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Safety active
1 = Reset Safety, Safety non-active
6.3.8 Scanning Controls
Reg.
Addr.
(Hex)
16
Data
Description
Horizontal Shift
Horizontal Output
Pulse Disable
Interlace
17
18
Bits
6
1
1
Vertical Amplitude
6
50/60Hz Selection
2
Vertical Position
4
2
PLL1 Time Constant
Horizontal
Synchronization
Vertical
Synchronization
1
1
d7 d6 d5 d4 d3 d2 d1 d0
X
X
X
X
0
1
X
X
0
0
1
1
X
X
X
X
X
X
X
X
0
1
X
X
0
1
X
X
X
X
0
1
0
1
X
X
X
X
X
X
0
1
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
X
0
0
1
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
X
0
1
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
Comments
-2.5 µs.
+2.5 µs.
0 = Normal mode.
1 = HOUT disable (high level).
0 = Interlace mode.
1 = De-interlace mode.
1.5 V on VAMP Pin.
6.0 V on VAMP Pin.
Auto (50 Hz when no ident.).
60 Hz.
50 Hz.
Auto (60 Hz when no ident.).
4 V high level on VERT Pin.
6 V high level on VERT Pin.
Auto time constant selection.
Short time constant.
Long time constant.
Very long time constant.
0 = PLL1 active.
1 = PLL1 not active (horiz. free running mode).
0 = Vertical synchronization active.
1 = Vertical free running mode.
52/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
Description
(Hex)
19
Vertical Output Low
Level Control
Data
Bits
1
1
Frame Blanking
Noise Detector
Threshold
Not to be used
1
Wide Line Blanking
1
Copy Protection Mode
AV Mode Time
Constant
2
1
1
d7 d6 d5 d4 d3 d2 d1 d0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
0
1
X
X
X
X
0
0
1
X
X
X
X
X
X
0
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Comments
0 = 0.1 V low level on VERT Pin.
1 = 2 V low level on VERT Pin.
0 = Adapted to standard.
1 = Long blanking (50 Hz blanking) both in 50 Hz
and 60 Hz modes
Low threshold.
High threshold.
0 = Standard Line Blanking
1 = Wide Line Blanking
0 = Normal PLL1 operating mode.
1 = Copy Protection Mode.
0 = PLL1 short time constant during all frames.
1 = PLL1 long time constant during vertical blanking, short time constant for the rest of the field.
6.3.9 Miscellaneous
Reg.
Addr.
Description
Bits
d7 d6
(Hex)
1A Manual Cut-off
0 0
8
Register Red
1 1
1B Manual Cut-off
0 0
8
Register Green
1 1
1C Manual Cut-off
0 0
8
Register Blue
1 1
1D CVBS1 Out selection at
0 0
pin 29 SDIP56
8
0 0
1E
53/86
Not To Be Used
SIF AGC time
constant (positive modulation)
Data
d5 d4 d3 d2 d1 d0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
0
1
0
1
1
0
0
1
0
1
0
1
1
0
Comments
Low DC at RGB output.
High DC at RGB output.
Low DC at RGB output.
High DC at RGB output.
Low DC at RGB output.
High DC at RGB output.
CVBSOUT1 selected at pin 29 SDIP56.
Default value, set to 0h when CVBSOUT1 not
used.
7
0
0
0
X
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0 Automatic SIFAGC Time constant control.
0 Forced Long time constant.
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
1F
Data
Description
Bits
1
X
X
X
X
X
X
X
X
X
X
0
0
X
X
1
X
X
X
X
X
X
X
X
X
X
0
0
0
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
X
X
X
0
1
0
1
X
0
1
X
X
X
X
0
0
0
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
X
X
X
X
VERT Output Inhibition
Sound Level Status
Refresh
Not to be used
Luma Delay Shift
2
AVL Control & Status
2
AM/FMOUT pin selection
Comments
d7 d6 d5 d4 d3 d2 d1 d0
0 VERT normal operating.
1 VERT inhibition (forced to high DC level controlled
by vertical position register).
X 0 = Sound level status continuously refreshed
X 1 = Sound level status refreshed only at the end of
vertical synchronization pulse
X
X Standard luma delay.
X 140 ns on luma delay.
X AVL OFF, read reg 03h, d7 = AGC Tuner Status
X AVL OFF, read reg 03h, d7 = AGC Tuner Status
X AVL ON, read reg 03h, d7 = AVL Gain Status
X AVL ON, read reg 03h, d7 = AGC Tuner Status
reg 04h, d3d2 = 11: AVL Gain Status = 1 (Min.)
reg 04h, d3d2 ¹ 11: AVL Gain Status = 0 (Max.)
X Output of AM/FM demodulator.
X Sound subcarriers selected.
X Audio output muted.
X Main audio switch output, either internal or external audio depending on main audio switch selection.
reg 04h; d0 = 0: internal audio.
reg 04h; d0 = 1: external audio.
6.4 OUTPUT SIGNALS (READ MODE)
Reg.
Addr.
(Hex)
00
Data
Description
Power-on Reset
Field Frequency
Field Lock Status
Video Identification
Bits
1
1
1
1
2
Standard Status Crystal
Selection
2
Standard Selection
d7 d6 d5 d4 d3 d2 d1 d0
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
X
X
X
X
X
X
X
X
0
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Comments
Normal mode.
Power down mode.
50 Hz.
60 Hz.
Not locked.
Locked.
No identification.
Video identification.
XTAL1 (4.43 MHz).
XTAL2 (3.5X MHz).
XTAL3 (3.5X MHz).
XTAL1 (3.5X MHz).
PAL.
NTSC.
SECAM.
COLOR OFF.
54/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
01
Data
Description
SVHS status
Noise detection
Scanning Horizontal
phase-locked loop status
Safety status
Fast Blanking detection on
external fast blanking pin
Test
Scanning VCO
Calibration
FM demodulation VCO
calibration
02
Bits
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
0
0
0
0
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
1
1
0
0
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
1
0
0
1
1
0
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0
0
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
1
1
0
0
0
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
0
0
0
1
X
X
X
X
X
X
X
X
X
X
X
1
1
X
X
X
X
X
X
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
Not calibrated.
Calibrated.
Not calibrated.
Calibrated.
FPLL - F0 < -300 kHz.
-300 kHz < F PLL - F0 < -60 kHz.
-60 kHz < F PLL - F0 < +60 kHz.
+60 kHz < F PLL- F0 < +300 kHz.
+300 kHz < FPLL - F0.
Level 1 (low sound carrier signal).
Level 2.
Level 3.
Level 4.
Level 5.
Level 6.
Level 7.
Level 8 (high sound carrier signal)
Blue CO register < 011110000
Blue CO register > 100001111
011110000 < Blue CO register < 100001111
and Icath not locked
011110000 < Blue CO register < 100001111
and Icath locked
TQFP64
SDIP56
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Tuner AGC Output not active
Tuner AGC Output active
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
AVL Gain Max. (Low audio signal)
AVL Gain Min. (High audio signal)
1
1
1
1
1
1
1
3
Digital AFC status
3
Sound carrier level
2
Blue cut-off register and
cut-off loop status
03
IC identification
Tuner AGC Output Status
(reg 1Fh, d5d4 = 00 or 01
or 11)
AVL Gain Status
(reg 1Fh, d5d4 = 10)
55/86
Comments
d7 d6 d5 d4 d3 d2 d1 d0
No SVHS (CVBS mode).
SVHS mode.
High S/N.
Low S/N.
Not locked.
Locked.
Safety not active.
Safety active.
No insertion detected.
Insertion on FBext.
Not to be used
STV224XH/228XH/223XH - I²C BUS SELECTION
6.5 POWER-ON RESET - INITIAL BUS REGISTER CONDITIONS
Power-On Reset is active when the power supply VCCD is below 3 Volts.
All data from all registers must be written by microprocessor after power-on. Unused data must be set to
0. POR values are not tested during production.
Reg.
Initial Data Value
Addr.
Comments
d7
d6
d5 d4 d3 d2 d1 d0
(Hex)
00
1 0 0 0 0 0 0 0 PIFVCO free running fine adjustment Typical.
PIFVCO coarse typ, BG = 38.9 MHz, Negative modulation, AFC active,
01
0 0 0 0 0 1 1 1
no PIF over-modulation regulation.
02
0 0 0 1 0 0 0 0 CVBS amplitude Typical, 2VPP.
03
0 0 1 0 0 0 0 0 Tuner AGC starting point Typical, Tuner AGC gain Min.
FM/AM out selected, FM de-emphasis and FM deviation auto-control, FM demod.
04
0 0 0 0 0 0 0 0
active, FM out selected, QSS and AM demod. active.
05
0 1 1 1 1 1 1 1 Volume control attenuation at maximum, linear curve (dB).
PIF < 42 MHz, 6.5 MHz sound carrier selected, auto AGC SIF time constant, saw
06
0 0 0 0 0 0 0 0
filter switch control at low level, CVBS out enabled, QSS mode.
07
0 0 1 0 0 0 0 0 Contrast at middle, blue screen disabled.
08
0 0 1 0 0 0 0 0 Saturation at middle, half contrast disabled, oversize blanking disabled.
09
0 0 1 0 0 0 0 0 Brightness at middle, RGB Blanking not active.
0A 0 0 1 0 0 0 0 0 Red drive at middle, RGBext insertion enabled (FBext Pin control).
0B 0 0 1 0 0 0 0 0 Green drive at middle, black stretch disabled, black stretch ref 0IRE.
0C 0 0 1 0 0 0 0 0 Blue drive at middle, cut-off loop active.
0D 0 0 1 0 0 0 0 0 Red cut-off at middle, automatic cut-off loop.
0E 0 0 1 0 0 0 0 0 Green cut-off at middle.
Peaking on luma at middle, coring off, trap ON (CVBS & color identified), CVBS2
0F 0 0 0 0 1 0 0 0
ON, white insertion not active.
10
0 0 0 1 0 0 0 0 APR disabled, APR threshold at middle, RGB OSD contrast disabled.
No shift of bell filter center frequency, 0dB P/N demod. gain, 90° matrix selection,
11
0 0 0 0 0 0 0 0
ACC overload ON.
No shift of bandpass center frequency, chroma reference output off, chroma delay
12
0 0 0 0 0 0 0 0
line on.
13
0 0 0 0 0 0 0 0 Two crystals application P/S/N, PAL XTAL1 forced mode, two crystal applications.
14
0 0 1 0 0 0 0 0 Hue at middle, flesh disabled, normal flesh characteristic.
CVBS1 selected on main CVBS output, CVBS1 selected on second CVBS output,
15
0 0 0 0 0 0 0 0
CVBS mode.
16
0 0 1 0 0 0 0 0 Horizontal shift at middle, horizontal output enabled, interlace mode.
17
0 0 1 0 0 0 0 0 Vertical amplitude at middle, auto 50/60 Hz identification.
Vertical position at middle, automatic time constant selection on PLL1, PLL1 active,
18
0 0 0 0 1 0 0 0
Vertical synchronization active.
0.1 V low level at pin VERT, frame blanking adapted to standard, noise detector low
19
0 0 0 0 0 0 0 0
threshold.
1A 0 0 0 0 0 0 0 0 Not active, auto cut-off.
1B 0 0 0 0 0 0 0 0 Not active, auto cut-off.
1C 0 0 0 0 0 0 0 0 Not active, auto cut-off.
1D 0 0 0 0 0 0 0 0 R-Y output at pin 29 (SDIP56)
1E 0 0 0 0 0 0 0 0 Not to be used, except d4: Auto. SIF AGC time constant control in L/L’ standards.
1F 0 0 0 0 0 0 0 0 VERT pulse active, standard luma delay, AVL off, AM/FM mono sound selected.
56/86
STV224XH/228XH/223XH - I²C BUS SPECIFICATION COMPATIBILITY
7 I²C BUS SPECIFICATION COMPATIBILITY
The STV2246H/36H, 2286H, 2247H/37H, 2248H/
38H and 2249H/39H I²C bus specification is compatible between IC version. However, some dedicated settings must be used for the different ver-
sions. The following sections show the differences
between the various versions. An “X” means that
the function is available and can be set to “1” or
“0”.
2248H/38H 2249H/39H 2247H/37H 2246H/36H
RGBext
WR0A d7:6
L/L' mode
WR01 d5
Positive/Negative Modulation
WR01 d4
FM/AM Output Selection
WR04 d5
Bell Filter
WR11 d4:0
QSS/Intercarrier Application
WR06 d6
QSS and AM defeat
WR04 d6
AGC SIF Time Constant
WR06 d3 & WR1E d4
CVBSout amplitude
WR02 d4:0
2286H
X
X
X
X
011
X
0
0
0
0
X
0
0
0
0
X
0
0
0
0
X
X
00000
00000
00000
X
X
X
1
1
X
X
X
1
1
X
X
X
X
00
X
X
X
X
10000
Note 1: The FBEXT pin must be connected to ground.
CAUTION: The specification of WR04 d3:2 has changed.
For 224XC versions (refer to STV224XC datasheet), WR04 d3:2 = 11 (bin.) means that FM demod deemphasis is bypassed. This function is used for BTSC application compatibility.
For 224XD/XE versions, WR04 d3:2 = 11: NOT TO BE USED.
For 224XH versions, WR04 d3:2 = 11 (bin.) means that Audio FM Wide mode is selected and it must be
used in QSS applications only. In this case, the following registers must be programmed:
WR04 d3:2 = 11 (bin.) (Audio FM Wide mode)
WR06 d6 = 0 (QSS application)
WR1F d5:4 = 1x (bin.) (AVL ON)
CAUTION: The specification of WR07 d6 has changed.
For 224XC/224XD versions, WR07 d6 = 1 means “insertion of cut-off pulses after a vertical oversize
blanking”
For 224XE/XH versions, WR07 d6 = 1 means “RGB peak limitation”
CAUTION: The specification of WR0F d5 has changed.
The new specification is:
WR0F d5 = 0: trap and luma delay active; this is not changed
WR0F d5 = 1: trap and luma delay disabled (bypass); this is changed
57/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
8 INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 20. Ground and Supply Voltages
VCCD (5 V)
Pin 53 (SDIP56)
VCCIF (5 V)
VCC2 (8 V)
VCC1 (8 V)
Pin 12 (SDIP56)
Pin 17 (SDIP56)
Pin 45 (SDIP56)
GNDD
Pin 54 (SDIP56)
GNDIF
GND2
GND1
Pin 10 (SDIP56)
Pin 19 (SDIP56)
Pin 43 (SDIP56)
Figure 21. Main Audio Output
VCC2 (8V)
AUDIOOUT
50 W
Pin 55 (SDIP56)
GNDIF
GND IF
GNDIF
GNDIF
58/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 22. Scanning PLL Filter
VCC1
VCC1(8 V)
SLPF
Pin 50 (SDIP56)
VREF
GND1
VCC1
VCC1
59/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 23. I²C Bus Data Input
VCCD (5V)
5V
SDA
Pin 52 (SDIP56)
10 kW
GNDD
GNDD
GNDD
Figure 24. I²C Bus Clock Input
VCCD (5V)
5V
SCL
Pin 51 (SDIP56)
10 kW
GNDD
GNDD
60/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 25. FM Demodulation Capacitor
VCCIF (5V)
FMCAP
Pin 56 (SDIP56)
GNDIF
GNDIF
GNDIF
VCCIF (5V)
GNDIF
50 W
GNDIF
GNDIF
GNDIF
GNDIF
Figure 26. IF Inputs
VCCIF (5V)
SIFIN2
SIFIN1
Pin 2 (SDIP56)
Pin 1 (SDIP56)
PIFIN2
PIFIN1
Pin 7 (SDIP56)
Pin 6 (SDIP56)
GNDIF
GNDIF
GNDIF
2.5 V
61/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 27. AGC SIF Capacitor
VCCIF (5V)
GNDIF
AGCSIFCAP
GNDIF
Pin 3 (SDIP56)
GND IF
GND IF
GNDIF
Figure 28. Voltage Reference Filtering
VCCIF (5V)
VREFIF
Pin 4 (SDIP56)
GNDIF
GNDIF
GNDIF
GNDIF
62/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 29. AGC PIF Capacitor
VCCIF (5V)
GNDIF
GNDIF
GNDIF
AGCPIFCAP
GNDIF
Pin 5 (SDIP56)
GNDIF
GNDIF
GNDIF
GNDIF
Figure 30. SAW Filter Switch Output (TQFP64)
VCCIF (5V) (Pin 20 - TQFP64)
SAWSWI 15
(TQFP64)
GNDIF
63/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 31. AGC Tuner Output
VCCIF (5V)
12 V
TUNERAGCOUT
GNDIF
Pin 8 (SDIP56)
GNDIF
GNDIF
GNDIF GNDIF
GNDIF
Figure 32. IF PLL Filter
VCCIF (5V)
GNDIF
IFPLL
GNDIF
Pin 9 (SDIP56)
GNDIF GNDIF
GNDIF
GNDIF
64/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 33. AM/FM Mono or Stereo Sound Carrier Output
VCC2 (8V)
AM/FMOUT/SC
Pin 11 (SDIP56)
GNDIF
GNDIF
Figure 34. Internal CVBS Output
VCC2 (8V)
VCCIF (5V)
GNDIF
INTCVBSOUT
GNDIF
Pin 13 (SDIP56)
GNDIF
GNDD
65/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 35. External Audio Input
VCCIF (5V)
EXTAUDIN
GNDIF
Pin 14 (SDIP56)
GNDIF
GNDIF
GNDIF
GNDIF
Figure 36. PIF LC Inputs
VCCIF (5 V)
PIFLC1
Pin 15 (SDIP56)
GNDIF
GNDIF
PIFLC2
Pin 16 (SDIP56)
GNDIF
GNDIF
GNDIF
66/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 37. CVBS Video Inputs
VCC1 (8 V)
CVBSIN1
GND1
Pin 18 (SDIP56)
CVBSIN2
Pin 20 (SDIP56)
GND2
GND1
GND1
GND1
GND1
Figure 38. Black Stretch Capacitor
VCC2 (8 V)
BS
Pin 21 (SDIP56)
GND2
GND2
67/86
GND2
GND2
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 39. RGB & YCrCb External Video Inputs
VCC2 (8 V)
BEXT/CB
Pin 25 (SDIP56)
GEXT/Y
Pin 26 (SDIP56)
REXT/CR
Pin 27 (SDIP56)
GND2
GND2
GND2
GND2
GND2
GND2
Figure 40. External Fast Blanking Input
VCC2 (8 V)
VCCD (5 V)
FBEXT
GND2
Pin 28 (SDIP56)
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
68/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 41. Y/CVBS External Input
VCC1 (8 V)
GND1
GND1
GND1
Y/CVBSIN3
GND1
Pin 22 (SDIP56)
GND2
GND1
GND1
Figure 42. Chroma (SVHS) Input
VCC1 (8 V)
CHR
GND1
Pin 23 (SDIP56)
GND1
GND2
69/86
GND1
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 43. Automatic RGB Peak Regulation
VCC2 (8 V)
APR
GND2
Pin 24 (SDIP56)
GND2
GND2
Figure 44. RGB Outputs
VCC2 (8 V)
BOUT
Pin 30 (SDIP56)
GOUT
Pin 31 (SDIP56)
ROUT
Pin 32 (SDIP56)
GND2
GND2
GND2
GND2
70/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 45. Cathode Current Measurement Input
VCC2 (8 V)
ICATH
GND2
GND2
GND2
Pin 33 (SDIP56)
GND2
GND2
71/86
GND2
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 46. OSD RGB Inputs
VCC2 (8 V)
BOSD
Pin 34 (SDIP56)
GOSD
Pin 35 (SDIP56)
ROSD
Pin 36 (SDIP56)
GND2
GND2
GND2
GND2
GND2
GND2
72/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 47. Half Contrast Input
VCC2 (8 V)
FBOSD/HC
GND2
Pin 37 (SDIP56)
GND2
GND2
GND2
GND2
GND2
Figure 48. 3.5X MHz Crystal or Bell Filter Tuning Capacitor
VCCD (5 V)
VCC1 (8 V)
XTAL3/BTUN
Pin 38 (SDIP56)
GND1
GND1
GND1
GND1
GND1
GND1
GND1
73/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 49. 4.43/3.5X MHz Crystal
VCC1 (8 V)
VCCD (5 V)
XTAL1
Pin 40 (SDIP56)
XTAL2
Pin 39 (SDIP56)
GND1
GND1
GND1
Figure 50. Chroma PLL Filter
VCCD (5 V)
VCC1 (8 V)
CPLF
Pin 41 (SDIP56)
GND1
GND1
GND1
GND1 GND1 GND1
GND1
GND1
74/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 51. XTAL1 Control Pin, Vert. Amplitude DAC Output and Chroma Reference Signal Output
VCC1 (8 V)
X1/VAMP¨/CHROUT
Pin 42 (SDIP56)
GND1
GND1
GND1
GND1 GND1
GND1
Figure 52. NTBC or Main CVBS Video Switch Output
VCC1 (8 V)
NTBC/CVBSOUT1
Pin 29 (SDIP56)
GND1 GND1 GND1
75/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 53. Second CVBS Video Switch Output
VCC1 (8 V)
CVBSOUT2
Pin 44 (SDIP56)
GND1
GND1
GND1
GND1
GND1
GND1
Figure 54. Beam Current Limiter Control Voltage and Safety Input
VCC1 (8 V)
GND1
GND1
BCL/SAF
GND1
Pin 46 (SDIP56)
GND1
GND1GND1
GND1
76/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 55. Vertical Output Pulse
VCC1 (8 V)
VERT
Pin 47 (SDIP56)
GND1
GND1
GND1
GND1
Figure 56. Horizontal Output Pulse
VCC1 (8 V)
HOUT
GND1
Pin 48 (SDIP56)
GND1
77/86
GND1
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 57. Line Flyback Input and Super-Sandcastle Output
VCC1 (8 V)
GND1
LFB/SSC
Pin 49 (SDIP56)
GND1
GND1
GND1
GND1
GND1
GND1
78/86
79/86
EXTERNAL CVBS INPUT
INTCVBSOUT
BG/DK/I
From Ext. RGB or
From Ext. YCrCb
SVHS
22 nF
22 nF
22 nF
VCCD
SDA
SCL
SLPF
V REFIF
AGCPIFCAP
PIFIN1
PIFIN2
BOSD
I CATH
CHR
ARR
FBEXT
REXT/Cr
GEXT/Y
NTBC/CVBSOUT1
BOUT
GOUT
ROUT
GOSD
BEXT/Cb
ROSD
Y/CVBSIN3
FBOSD/HC
XTAL3
XTAL2
XTAL1
CLPF
X1/VAMP/CHROUT
GND1
CVBSOUT2
V CC1
BCL/SAF
VERT
HOUT
BS
CVBSIN2
GND2
CVBSIN1
V CC2
PIFLC2
PIFLC1
EXTAUDIOIN
INTCVBSOUT
V CCIF
FMOUT
GNDIF
IFPLL
LFB/SSC
GNDD
NC
S
T
V
2
2
4
6
H
AUDIOOUT
NC
TUNERAGCOUT
FMCAP
NC
PAL/NTSC BG/DK/I/M/N
CVBSOUT1 (1 V PP)
27 k Ohm
1 µF
MULTISTANDARD ASIA MONO APPLICATION
56 kOhms
BOSD
GOSD
ROSD
FBOSD
VAMP
(2 VPP)
CVBSOUT2
BCL
LFB
Audio Out
(to audio amplifier)
STV224XH/228XH/223XH - APPLICATION DIAGRAMS
9 APPLICATION DIAGRAMS
Figure 58. STV2246H
EXTERNAL CVBS INPUT
INTCVBSOUT
From Ext. RGB or
From Ext. YcrCb
SVHS
22 nF
22 nF
22 nF
S
T
V
2
2
4
7
H
SCL
SLPF
PIFIN1
PIFIN2
I CATH
ARR
FBEXT
REXT/Cr
GEXT/Y
NTBC/CVBSOUT1
BOUT
GOUT
ROUT
BOSD
CHR
BEXT/Cb
GOSD
ROSD
FBOSD/HC
XTAL3
XTAL2
XTAL1
CLPF
X1/VAMP/CHROUT
GND1
CVBSOUT2
VCC1
BCL/SAF
VERT
HOUT
Y/CVBSIN3
BS
CVBSIN2
GND2
CVBSIN1
VCC2
PIFLC2
PIFLC1
EXTAUDIOIN
INTCVBSOUT
VCCIF
FMOUT/SC
GNDIF
IFPLL
LFB/SSC
SDA
TUNERAGCOUT
VCCD
VREFIF
GNDD
AGCPIFCAP
AGCSIFCAP
FMCAP
AUDIOOUT
SIFIN1
SIFIN2
CVBSOUT1 (1 VPP)
PAL/NTSC BG/DK/I/M/N
R38
27 kOhms
C42
1 µF
56 kOhms
MULTISTANDARD ASIA STEREO APPLICATION
J32
To CRT Board
BOSD
GOSD
ROSD
FBOSD
CVBSOUT
(2 V PP)
BCL
LFB
SCL
SDA
Audio Out
(to audio amplifier)
STV224XH/228XH/223XH - APPLICATION DIAGRAMS
Figure 59. STV2247H
GND
I CATH
ROUT
GOUT
BOUT
VCC
80/86
81/86
BG/DK
BG/DK/I/L
22 nF
22 nF
22 nF
FBEXT
REXT/Cr
GEXT/Y
BEXT/Cb
ARR
CHR
Y/CVBSIN3
BS
CVBSIN2
GND2
CVBSIN1
V CC2
PIFLC2
PIFLC1
EXTAUDIOIN
INTCVBSOUT
VCCIF
AM/FMOUT/SC
GNDIF
IFPLL
TUNERAGCOUT
PIFIN2
S
T
V
2
2
4
8
H
NTBC/CVBSOUT1
BOUT
GOUT
ROUT
ICATH
BOSD
GOSD
ROSD
FBOSD/HC
XTAL3/BTUN
XTAL2
XTAL1
CLPF
X1/VAMP/CHROUT
GND1
CVBSOUT2
VCC1
BCL/SAF
VERT
HOUT
LFB/SSC
SLPF
SCL
SDA
PIFIN1
VCCD
VREFIF
AGCPIFCAP
GNDD
AUDIOOUT
SIFIN2
AGCSIFCAP
FMCAP
SIFIN1
CVBSOUT1 (1 V PP)
1 µF
56 kOhms
MULTI-STANDARD EUROPEAN APPLICATION
PAL/SECAM/NTSC BG/DK/I/LL’
J32
To CRT Board
BOSD
ROSD
GOSD
FBOSD
VAMP
CVBSOUT
(2 VPP)
VOUT
BCL
HOUT
LFB
SCL
SDA
Audio Out
(to Audio Amplifier)
STV224XH/228XH/223XH - APPLICATION DIAGRAMS
Figure 60. STV2248H
GND
I CATH
ROUT
GOUT
BOUT
VCC
AGCPIFCAP
FBEXT
V REFIF
REXT
NC
NC
NC
BS
CVBSIN2
AGCSIFCAP
GND2
SIFIN2
CVBSIN1
SIFIN1
VCC2
FMCAP
STV2238H
AUDIOOUT
PIFLC2
PIFLC1
EXTAUDIOIN
INTCVBSOUT
GND1
CVBSOUT2
VCC1
NC
BCL/SAF
VERT
HOUT
LFB/SSC
ROSD
FBOSD
NC
XTAL3/BTUN
XTAL2
XTAL1
CLPF
X1/VAMP/CHROUT
SCL
GEXT
TUNERAGCOUT
VCCIF
SLPF
BEXT
SAW
AM/FMOUT/SC
GNDIF
IFPLL
MULTI-STANDARD EUROPEAN APPLICATION
PAL/SECAM/NTSC BG/DK/I/LL’
56 kOhms
1 µF
STV224XH/228XH/223XH - APPLICATION DIAGRAMS
Figure 61. STV2238H (TQFP64)
GOSD
SDA
BOSD
ICATH
V CCD
ROUT
GNDD
GOUT
BOUT
CVBSOUT1
NC
REXT/Cr
FBEXT
PIFIN1
APR
PIFIN2
CHR
1VPP
to teletext
output
BEXT/Cb
GEXT/Y
Y/CVBSIN3
NC
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STV224XH/228XH/223XH - THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE
10 THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE
Proper cooling of the STV223XH circuit (TQFP64 package) requires particular care.
The value of RthJA given in the datasheet corresponds to the following condition:
The circuit is soldered ABOVE a printed circuit board (with as much ground plane as possible) and it exchanges freely with its environment by natural convection and radiation.
This 'ideal' condition may not be possible in a real TV set environment and RthJA may increase above the
given value.
In particular, the worst case is when the circuit is soldered BELOW the chassis board in a confined volume
between the chassis board and the bottom of the TV box. In this case, RthJA may increase.
Recommendations:
■ to perform a quick theoretical temperature evaluation before making the chassis board
■ later on, to perform detailed temperature measurements on the chassis board, in its real environment
Thermal data given in the data sheet allows an estimation of junction and case temperatures to be made.
For estimation on pin temperature, the following additional data, derived from a measurement on a typical
chassis, can be used: RthJP ~ 20°C/W;
Example of temperatures ESTIMATION:
(Reminder: only in the case where the circuit is soldered ABOVE the chassis board in a relatively 'free' environment).
Dissipated power: Pd = 1.3W.
Ambient temperature : Ta = 60°C (inside the TV set).
Junction temperature: Tj = Ta + RthJA * Pd = 125°C.
Case temperature: Tc = Tj - RthJC * Pd = 112°C.
Pins temperature: Tp = Tj - RthJP * Pd = 99°C.
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STV224XH/228XH/223XH - SUMMARY OF CHANGES
11 SUMMARY OF CHANGES
Rev.
1.0
2.0
2.1
2.2
Main Changes
First Issue.
Added TQFP64, STV223XH version.
TQFP64 thermal and mechanical data added, other minor corrections.
Minor corrections, typos, alignment etc.
Date
15 Apr 2003
05 Feb 2004
09 Apr 2004
21 Apr 2004
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STV224XH/228XH/223XH - GENERAL PACKAGE INFORMATION
12 GENERAL PACKAGE INFORMATION
12.1 PACKAGE MECHANICAL DATA
Figure 62. 56-Pin Shrink Plastic Dual In Line Package, 600-mil Width
A
6.35
A1
0.38
A2
3.18
b
0.250
0.015
4.95 0.125
0.41
b2
0.195
0.016
0.89
0.035
C
0.20
0.38 0.008
0.015
D
50.29
53.21 1.980
2.095
E
E1
15.01
12.32
e
1.78
eA
15.24
eB
L
0.591
14.73 0.485
2.92
0.580
0.070
0.600
17.78
0.700
5.08 0.115
0.200
Number of Pins
N
56
PDIP56S
Figure 63. 64-Pin Thin Quad Flat Package
0.10mm
A
.004
A1
0.05
A2
1.35 1.40 1.45 0.053 0.055 0.057
B
0.30 0.37 0.45 0.012 0.015 0.018
C
0.09
1.60
0.063
0.15 0.002
0.006
0.20 0.004
0.008
D
16.00
0.630
D1
14.00
0.551
D3
12.00
0.472
E
16.00
0.630
E1
14.00
0.551
E3
12.00
0.472
e
0.80
K
L
0°
3.5°
0.031
7°
0.45 0.60 0.75 0.018 0.024 0.030
L1
1.00
0.039
Number of Pins
L1
N
L
K
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64
ND
16
NE
16
STV224XH/228XH/223XH - GENERAL PACKAGE INFORMATION
Notes:
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without the express written approval of STMicroelectronics.
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All other names are the property of their respective owners
„2004 STMicroelectronics - All Rights Reserved.
Purchase of I2C Components by STMicroelectronics conveys a license under the Philips I2C Patent. Rights to use these components in an
2
I C system is granted provided that the system conforms to the I2 C Standard Specification as defined by Philips.
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