STV2112B BUS-CONTROLLED PAL/SECAM TV PROCESSOR .. .. .. .. .. I2C BUS CONTROL OF ALL FUNCTIONS INTEGRATED FILTERS (TRAP, BANDPASS, CLOCHE) INTEGRATED LUMINANCE DELAY LINE PAL/SECAM CHROMA DEMODULATORS AUTOMATIC CUT-OFF CURRENT LOOP TWO RGB INPUTS SVHS SWITCH TWO PLLs HORIZONTAL DEFLECTION VERTICAL COUNT DOWN VERY FEW EXTERNAL COMPONENTS SHRINK42 (Plastic Package) DESCRIPTION The STV2112B is a fully bus controlled IC for TV luma, chroma and deflection processing. Used with STV8224 (PIF/SIF/switches), TDA1771 or TDA8174 (frame booster),STV2180 (delay line), it allows to design a PAL/SECAM(BGDKIL) set with very few external components and no adjustment. ORDER CODE : STV2112B CHROMA/SCANNING GROUND GND2 1 42 VCC2 CHROMA/SCANNING/BUS S UP P LY XTAL2 S ELECTION S ELECT 2 41 BYO B-Y OUTPUT 4.43MHz XTAL CXTL1 3 40 RYO R-Y OUTP UT CHROMA LOOP FILTER CLPF 4 39 RYI R-Y INPUT ACC CONTROL CAPACITOR ACC 5 38 BYI B-Y INPUT DATA WIRE I2C BUS SDA 6 37 LFB/SC LINE FLYBACK INPUT/SANDCASTLE OUTP UT CLOCK WIRE I2C BUS S CL 7 36 HOUT HORIZONTAL OUTP UT FILTER TUNING FTUN1 8 35 VOUT VERTICAL OUTP UT CLOCHE FILTER TUNING FTUN2 9 34 VAMP AMPLITUDE CONTROL VOLTAGE VOLUME AND MUTE CONTROL VOLTAGE VOL 10 33 S LPF S CANNING LOOP FILTER IF STANDARD AND S WITCH S ELECTION S WI 11 32 S XTL 503kHz CERAMIC OS D BLUE INPUT BOS D 12 31 BCL BEAM CURRENT LIMITER OS D GREEN INPUT GOSD 13 30 ICAT CATHODE CURRENT MEASUREMENT OS D RED INPUT ROS D 14 29 RO RED OUTP UT OS D RGB INSERTION FBOSD 15 28 GO GREEN OUTP UT EXTERNAL BLUE INPUT BEXT 16 27 BO BLUE OUTP UT EXTERNAL GREEN INPUT GEXT 17 26 CR RED CUT-OFF CAPACITOR EXTERNAL RED INPUT REXT 18 25 CB BLUE CUT-OFF CAPACITOR EXTERNAL RGB INSERTION FBEXT 19 24 CG GREEN CUT-OFF CAPACITOR CVBS OR LUMINANCE INPUT Y/CVBS 20 23 CHR/SVHS CHROMINANCE INPUT/SVHS S ELECTION BUS/VIDEO GROUND GND1 21 22 VCC1 VIDEO S UPP LY August 1998 2112B-01.EPS PIN CONNECTIONS 1/24 2 SELECT 2112B-02.EPS CXTAL1 3 5 23 CHR ACC 20 Y/CVBS DELAY LINE SHARPNESS PAL KILLER 41 B-Y 40 R-Y CLPF 38 B-Y 1 PAL DEMODULATORS SYNC SEPARATOR MATRIX SATURATION BRIGHTNESS CONTRAST 39 R-Y GND1 GND2 21 DELAY LINE INTERFACE SECAM KILLER STANDARD IDENTIFICATION Y 4 SECAM DEMODULATORS ACC CHR FILTER TUNING TRAP BANDPASS CLOCHE SVHS SWITCH 42 19 FB B 16 15 FB VIDEO IDENTIFICATION RGB SWITCHES Contrast G 17 R 18 SHARP 22 SDA 6 SCL 7 BUS DECODER BRIG 9 SAT 8 EXTERNAL CONT VCC2 SWI 11 R G 13 OSD 14 STD VCC1 10 VOL DRIVE 2/24 CUT-OFF FILTER CLOCHE TUNING TUNING B 12 33 SXTAL SLPF 32 LFB/SC 37 LINE SCANNING FRAME SCANNING BLANKING AUTO CUT-OFF BLACK & WHITE CONTROL STV2112B 36 HOUT 34 VAMP 35 VOUT 31 BCL 27 B 28 G 29 R 30 ICAT 26 CR 24 CG 25 CB STV2112B BLOCK DIAGRAM PLL STV2112B FUNCTIONAL DESCRIPTION 1 - DEFLECTION CIRCUIT Note : [X,Y] : line number referred to the internal line counter numbering - Fully integrated synch. separator, with a low pass filter, a black level alignment of the Y/CVBS input, a slicing level at 2/3,1/3of the sync. pulse amplitude. - Frame sync. pulse locked on 2 fH frequency to perfect interlace. - 500kHz VCO with an externalceramic resonator. - Two phase locked loops • the first PLL locks the VCO on the video signal frequency, • the second PLL compensates the line transistor storage time. - Three time constants for the first PLL. • thelong timeconstantis usedfor normaloperation • the short time constant is automatically used during the frame retrace and in search mode of VCR when the frame pulse is outside [258,264] and [309,314]. • very long time constant when no video recognition Time constants in normal operation (automatic selection of time constants) : 50Hz input signal : - short time constant : [306, 21] - long time constant : the rest of the field • inhibition of the first PLL : the first locked loop is opened from line 309 to line 4.5 (or 314) in 50Hz mode. • the time constantsvalues are chosenby means of external components. • possibility to force the short time constant through the bus. • possibility to force the very long time constant through the bus. - Video identification : coincidence detector between the line synchro top and a line frequency window from the firstPLL. The video identification status is available in the output register of the I 2C bus decoder. - 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 sandcastle generator. - Frame synchro window : [248, 352] catching - Field frequency selection windows : [288, 352] 50Hz mode selection window - frame blanking pulse : from line 0 to 21 in 50Hz mode - Vertical output pulse is 10.5 lines long. - Horizontal output pulse : 28µs line pulse on an open collector output; - Start up circuit : the horizontal output is at a high - - - level when VCC increases from 0 to 6.8V. On shutting down, horizontal pulses are disabled when VCC is below 6.2V. Soft-start circuit : the duty cycle of the horizontal output is 78 % (Thigh/(Thigh + TLow))when VCC1 is lower than (0.75 x VCC2), during the rising time. During the falling time, a 78% duty cycle HOUT pulse is provided when VCC1 is lower than (0.60 x VCC2). Possibility to disable the horizontal output pulse through the bus (force a high level on HOUT). Horizontal position adjustment controlled by bus. Bus controlledoutput voltage to adjustthe vertical amplitude ; this voltagepermitsto adjustthe slope of the vertical sawtooth generated by the external frame booster. Bus controlled vertical position ; the high level of the vertical pulse permits to adjust the vertical position. Bus controlled 4/3-16/9 selection : the low level of the vertical pulse is 0.1V when 16/9 is selected, 2V when 4/3 is selected. Combined flyback input and sandcastle output (Pin 37). Two thresholds on LFB/SCO Pin : The lowest threshold (0.7V) permits to extract the line blanking pulse ; the highest threshold (2V) permits to extract the line pulse for PLL2. The sandcastle signal at Pin 37 is used to control the external baseband chroma delay line. 2 - FILTERS - Integrated trap filter : Q = 1.7 at sharp. min 1 Q= Q = 3.0 at sharp. max f−3dB fo − f−3dB fo Center frequency : - 4.43MHz for PAL - 4.25MHz, for SECAM (f-3dB = 3MHz; -20dB rejection between 4.1MHz and 4.4MHz) - Integrated chroma bandpass : Q = 3.5, Center frequency= 4.43MHz - Integrated cloche filter for SECAM : Q = 16, Center frequency = 4.286MHz - Integrated delay line : Bandwidth = 8MHz - Integrated low pass filter for deflection part. - Allfilters aretunedwitha referencephaselockedloop. The PLL consists ofa lowpass filter, a phasecomparator,a loopfilter (with an externalcapacitor).The reference signal is the continuouscarrier wave from the VCO (4.43MHz). The PLL adjusts the center frequency of the lowpass so that it is equal to the referencesignal.ThetuningvoltageofthePLLisused to adjust all otherfilters. The cloche filter is fine tuned with a secondPLLoperatingduring frame retrace. 3/24 STV2112B FUNCTIONAL DESCRIPTION (continued) 3 - VIDEO CIRCUIT - 2 RGB inputs : RGB (OSD) input has priority against the RGBext. Maximum contrast on RGB (OSD). -12dB range contrast control on RGBext. Possibility to disable the RGBext insertion through the bus. - Oversize blanking capability on FB(OSD)(Pin15) input. The RGB ouputs will be blanked when the voltage on Pin 15 will exceed the second threshold at 1.9V (blanking threshold) : the whole field is blanked but not the inserted cut-off pulses. The OSD insertion threshold is 0.7V. - Automatic cut-off current loop : 2V cut-off range. Sequential cut-off current measurement during the three lines after the frame blanking signal. Leakage current measurement during the frame blanking, memorization on an internal capacitor. - Warm up detector. - Beam current limiter DC voltage input. The beam current limiter control voltage will act on contrast first, then the brightness will be decreased when contrast attenuationreaches -5dB. - Bus control of the red, green and blue channel gain (White point adjustment) - Bus control of the red and green DC levels (black point adjustment) - PAL and SECAM matrix). - Switch-off of the trap filter in SVHS mode. - Bus controlled contrast on luminance (20dB range) - Bus controlled saturation (50dB range) - Bus controlled brightness : 40% range at maximum contrast. - Bus controlled sharpness (peaking) ; sharpness active in PAL standard only. - Noise coring function on sharpness. 4 - CHROMA CIRCUIT 4.1 - PAL/SECAM Decoders - SVHS inputs ; bus controlled SVHS mode. - 30dB range ACC - Use of an external base band delay line (STV2180 recommended) - Automatic standard identification, with possibility to force the standard through the bus. 4.2 - PAL Decoder - ACC done by peak detector on synchronous demodulation of the burst - Fully integrated killer functions. - VCO using crystal 4.43MHz XTAL SPECIFICATION : Frequency : 4.433619MHz(PAL/SECAM) 4/24 Vibration mode : Fondamental,series resonance (no serial capacitor) Motional capacity : 13fF ±3fF Resonance resistance : < 70Ω Shunt capacitance : < 7pF Spurious response : No resonance at 3*fo ±3kHz - 0o and ±90o demodulation angles for PAL 4.3 - SECAM Decoder - ACC - Fully integrated killer - Two integrated discriminators with two PLL - Integrated deemphasis 4.4 - Standard Identification - Sequential identification. - 2 identification sequences : PAL mode, SECAM mode - PAL priority - the SECAM mode is locked after two identified SECAM sequences - the SECAM mode can be selected in 50Hz only - Blanking of the (R-Y) and B-Y) outputs during color search mode. 5 - OTHER FUNCTIONS : IF CONTROLS 5.1 - Volume Control and Mute The volume control voltage range on Pin 10 is from 0.5V to 5V. A low voltage on Pin 10 (below 0.2V) will mute the FM demodulator of the IF circuit STV8224. It will put the volume at the minimum level and thus there will be no soundeither in TV mode or SCART mode. The volume control voltage and the mute level are controlled by the bus. 5.2 - IF Standard and TV/SCART Mode Selection The selection of IF standard (positive or negative vision modulation)and theTV/SCARTmode is controlled by the bus. The selection is convertedin four voltages on Pin 21. The lowest voltage selects the TV mode and the NEGATIVE vision modulation. The highest voltage (open collector output with internal pull-up resistor to VCC) selects the SCART mode and the NEGATIVE vision modulation. The two other intermediate voltages select either TV mode and POSITIVE vision modulation or SCART mode and POSITIVE vision modulation. STV2112B I2C BUS SPECIFICATION General Comments Slave Address : 8A (HEX) (1000101X) WRITE MODE DATA FORMAT Slave Address Register Address Data 1000 1010 (8A) XXXS SSSS (from 00 to 11HEX) XXSS SSSS (6 significant bits Max.) The not used bits in data byte must be put to ”0”. READ MODE DATA FORMAT Slave Address Data 1000 1011 (8B) SSSS SSSS (8 significant bits) MSB on the left, LSB on the Right. MSB LSB X X X X X X X X X : not significant bit - S : significant bit Input Signals (Write Mode) VIDEO Address Dec (HEX) Description Data (Bits) Comments 0 (00) Contrast 5 XXX0 0000 = -20dB XXX1 1111 = 0dB 0 (00) External Fast Blanking Enable 1 XXSX XXXX 0 = RGBext insertion enable 1 = RGBext insertion disable 1 (01) Saturation 6 XX00 0000 = -44dB XX11 1111 = +6dB 2 (02) Brightness 5 XXX0 0000 = -20% XXX1 1111 = +20% 2 (02) RGB Outputs Blanking 1 XXSX XXXX 0 = Normal mode 1 = Blanking active 3 (03) Red Drive Adjust (white point red adjust) 6 XX00 0000 = -6dB XX11 1111 = 0dB 4 (04) Red Cut-off Adjust 6 XX00 0000 = +150mV XX11 1111 = -150mV 5 (05) Green Drive Adjust (white point green adjust) 6 XX00 0000 = -6dB XX11 1111 = 0dB 6 (06) Green Cut-off Adjust 6 XX00 0000 = +150mV XX11 1111 = -150mV 7 (07) Blue Drive Adjust (white point blue adjust) 6 XX00 0000 = -6dB XX11 1111 = 0dB 8 (08) Sharpness 3 XXXX X000 = Peaking Min. XXXX X111 = Peaking Max. 5/24 STV2112B I2C BUS SPECIFICATION (continued) Input Signals (Write Mode) (continued) CHROMA Address Dec (HEX) 9 (09) 10 (0A) Description Data (Bits) Comments Not used Standard Selection 4 XXXX SSSS 0000 = PAL/XTAL1 (4.43MHz) 0100 = SECAM/XTAL1 011X = Auto/90o 0001 = Not allowed 0010 = Not allowed 0011 = Not allowed 0101 = Not allowed 1000 = Not allowed 1001 = Not allowed 1010 = Not allowed 1011 = Not allowed 111X = Not allowed 1100 = Not allowed 1101 = Not allowed 10 (0A) SVHS Selection 1 XXXS XXXX 0 = No SVHS (CVBS mode) 1 = SVHS mode DEFLECTION Address Dec (HEX) Description Data (Bits) Comments 11 (0B) Horizontal Shift 6 XX00 0000 = -2.5µs XX11 1111 = +2.5µs 12 (0C) Vertical Amplitude 6 XX00 0000 = 1.2V XX11 1111 = 6.2V 13 (0D) Vertical Position 3 XXXX X000 = 3.8V XXXX X111 = 6.3V 13 (0D) 50/60Hz Selection 2 XXXS SXXX 00 = Automode 01 = Not allowed 10 = 50Hz 11 = Not allowed 13 (0D) Horizontal Output (HOUT) Safety 1 XXSX XXXX 0 = Normal mode 1 = HOUT disabled (high level) 14 (0E) PLL1 Time Constant 2 XXXX XXSS 00 = Normal mode (Auto) 01 = Short time constant 10 = Very long time constant 11 = PLL1 inhibition (open loop) 14 (0E) Interlace 1 XXXX XSXX 0 = Interlace 1 = DE-Interlace 14 (0E) 4/3 16/9 Selection 1 XXXX SXXX 0 = 4/3 (VOUT-Low = 2V) 1 = 16/9 (VOUT-Low = 0.1V) 6/24 STV2112B I2C BUS SPECIFICATION (continued) Input Signals (Write Mode) (continued) OTHERS Address Dec (HEX) Data (Bits) Description Comments 15 (0F) Volume 6 XX00 0000 = 0.5V XX11 1111 = 5V 16 (10) Mute 1 XXXX XXXS 0 = Mute not active 1 = Mute active 16 (10) IF Standard / AV Switch 2 XXXX XSSX 00 = INT/FM (negative) 01 = INT/AM (positive) 10 = EXT/AM (positive) 11 = EXT/FM (negative) 16 (10) Not Used 1 XXXX SXXX S = 0 default value 16 (10) Cut-off Pulse Position 1 XXXS XXXX 0 = lines 23/24/25 in50Hz, 1 = Not allowed 17 (11) Only for Test 6 XXSS SSSS 00 0000 = Test mode not active Output Signals (Read Mode) READ REGISTER Description Data (Bits) Comments Field Frequency 1 XXXX XXXS 1 = 50Hz 0 = not 50Hz Video Identification 1 XXXX XXSX 1 = No Identification 0 = Video Identification SVHS Status 1 XXXX XSXX 1 = No SVHS 0 = SVHS Standard Status 3 XXSS SXXX 111 = PAL/XTAL1 (4.43MHz) 110 = not to be used 101 = SECAM/XTAL1 011 = not to be used 010 = not to be used X00 = Color off Circuit Identification 2 SSXX XXXX 11 = STV2118A/2116/2112 10 = STV2116A 01 = STV2112B 00 = STV2216 7/24 STV2112B I2C BUS SPECIFICATION (continued) Bus Register Initial Conditions Not used bits are preset to ”0”. Address Dec (HEX) Data Initial Value 0 (00) XX01 0000 Mid. contrast ; RGBext insertion enable 1 (01) XX10 0000 Mid. saturation 2 (02) XX01 0000 Mid. brightness ; Blanking : normal mode 3 (03) XX10 0000 Mid. RED drive adjust 4 (04) XX10 0000 Mid. RED cut-off adjust 5 (05) XX10 0000 Mid. GREEN drive adjust 6 (06) XX10 0000 Mid. GREEN cut-off adjust 7 (07) XX10 0000 Mid. BLUE drive adjust 8 (08) XX00 0100 Mid. sharpness Comments 9 (09) XX10 0000 Not used 10 (0A) XX00 0110 Auto search color standard ; no SVHS 11 (0B) XX10 0000 Mid. horizontal shift 12 (0C) XX10 0000 Mid. vertical amplitude 13 (0D) XX00 0100 Mid. vertical position ; Auto search field frequency ; HOUT : normal mode 14 (0E) XX00 0000 PLL1 time constant : normal mode ; Interlace ; 4/3 selection 15 (0F) XX10 0000 Mid. volume 16 (10) XX00 0000 Mute not active ; INT/FM IF mode ; Not used ; Cut-off pulses on lines 23/24/25 in 50Hz 17 (11) XX00 0000 Test mode not active 8/24 STV2112B ABSOLUTE MAXIMUM RATINGS Value V CC Supply Voltage (Pins 22-42) (VCC1(22) ≤ VCC2(42)) Toper Operating Temperature Tstg Unit 12 Storage Temperature V 0, +70 o -55, +150 o C C THERMAL DATA Symbol R th (j-a) Parameter Value Junction-ambient Thermal Resistance (PD = 1.3W) Typ. Unit o 40 C/W 2112B-01.TBL Parameter 2112B-02.TBL Symbol ELECTRICAL CHARACTERISTICS (VCC = 9V, T amb = 25oC, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 9 9.9 V SUPPLY VCC1 Video Supply Voltage (VCC1 ≤ VCC2) 8.1 VCC2 Chroma & Scanning & Bus Supply Voltage 8.1 9 9.9 V ICC1 VCC1 Current Consumption 55 75 95 mA ICC2 VCC2 Current Consumption Ptot Power Total Dissipation PAL mode 50 70 90 mA 1305 1700 mW LUMINANCE /CVBS INPUT (Pin 20) DC20 DC Operating Voltage V20PP CVBS or Y Input Voltage GY CTRY Luma Gain No input signal Contrast Max., Drive Max. Luma Contrast Range -I20 Negative Clamping Current I20 Clamping Current 3.55 During sync. pulse 3.7 3.95 V 1 1.41 VPP 4.1 - 18 20 22 dB -20 -25 -35 µA 5 10 µA COMBINED CHROMINANCE AND SVHS SELECTION INPUT (Pin 23) V23 Chrominance Input Voltage VCLIP23 Input Amplitude before Clipping VDC23 DC Voltage VTH23 SVHS Threshold Voltage Ilow23 Output Current Vmin23 Minimum Burst Signal Amplitude within the ACC Control Range GACC ACC Control Range Killer Colour Killer on Threshold Burst Amplitude, 100/75 colour bar 0.3 VPP 1.0 SVHS mode VPP 1.6 0.5 0V at Pin 23 V 0.7 120 V 170 µA 30 mVPP Change of Burst over whole ACC control range < 2dB 30 dB Burst amplitude on Pin 20 or Pin 23, S/N > 40dB 5 mVPP +3 dB Colour killer off hysteresis RGB INPUTS (Pins 12-13-14-16-17-18) Clamp Level Contrast Max., Drive Nom. 1.5 1.8 2.1 V 0.7 1 VPP VRGB RGB Input Voltage GRGB RGB Gain Contrast Max., Drive Max. 4.0 RGB Contrast Range On external RGB (16-17-18) 11.5 CTR RGB ∆Black IRGB Difference of Black Level of Internal and External signals at the Outputs Clamping Current 60 100 dB 200 mV 140 µA 9/24 2112B-03.TBL VCLAMP STV2112B ELECTRICAL CHARACTERISTICS (VCC = 9V, T amb = 25oC, unless otherwise specified) (continued) Symbol Parameter Test Conditions Min. Typ. Max. Unit 0.5 1.6 0.7 2.0 30 50 0.85 2.4 V V ns ns µA OSD FAST BLANKING INPUT (Pin 15) VTHFB1-15 VTHFB2-15 Tswi1-15 Tswi2-15 IFB-15 Insertion Threshold Voltage Blanking Threshold Voltage Insertion Switching Delay Blanking Switching Delay Input Current 0V at Pin 15 50 EXTERNAL FAST BLANKING INPUT (Pin 19) VTHFB-19 IFB-19 Tswi-19 Threshold Voltage Input Current Switching Delay 0.5 0.7 0V at Pin 19 0.85 50 V µA ns 2.0 V mV 30 CATHODE CURRENT INPUT (Pin 30) VLEAK VCoff VSB ILow-30 Leakage Current Reference Voltage Cut-off Current Reference Voltage refered to Leakage Current Reference Start Beam Current Detection Reference Voltage Source current 1.80 250 2.1 2.3 V 150 250 µA 70 100 AUTOMATIC CUT-OFF CAPACITORS (Pins 24-25-26) I24-25-26 Control Current 130 µA BEAM CURRENT LIMITER VOLTAGE (Pin 31) VTH1-31 VTH2-31 VTH3-31 CTR-BCL VTH4-31 BRIG-BCL CLP31 Contrast Attenuation Starting Brightness Attenuation Starting Contrast Attenuation Ending Contrast Attenuation at V 31=VTH3-31 Brightness Attenuation Ending Brightness Attenuation at V31=VTH4-31 High Clamping Voltage 6.0 5.5 5.0 14.0 4.5 V V V dB V % V 2.85 V 2 7.8 0.45 2.6 300 mA V V V mV 100 6.5 VBW IS27-28-29 VM27-28-29 VBlack27-28 -29 RCO DCCO DRIV R BRIG ∆V CTR ∆VSAT ∆VREL ∆VTemp 10/24 Output Signal Amplitude (B to W) Output Sinking Current Maximum Peak White Level Blanking Level Cut-off Output Range Cut-off Adjustment Range Drive Adjustment Range Brightness Range Variation of Black Level with Contrast Variation of Black Level with Saturation Relative Variation in Black Level between the three Channels - during Variation of Contrast(20dB) - during Variation of Brightness (total range) - during Variation of Vcc (+/-10%) Black Level Thermal Drift 0.7V B/W at Pin 20, Drive Max., Contrast Max., Brightness Typ., Saturation Typ. 1.5 No load 0.3 2 On Red and Green ouputs Pins 29 and 28, Drive Max. Relative to B/W amplitude on R,G,B outputs at Contrast Max. Drive Max. 30 6.5 40 0 10 5 1 0.6 50 dB % 100 50 mV mV 20 40 mV mV mV mV/oC 2112B-04.TBL RGB OUTPUTS (Pins 27-28-29) STV2112B ELECTRICAL CHARACTERISTICS (VCC = 9V, Tamb = 25oC, unless otherwise specified) (continued) Symbol Parameter Test Conditions Min. Typ. Max. Unit RGB OUTPUTS (Pins 27-28-29) (continued) Track Bwidth S/N Res Tracking between Luminance and Chrominance Signals Bandwith of Output Signals at -3dB - CVBS Input (no SVHS) PAL - CVBS Input(no SVHS) SECAM - Y Input SVHS Mode - RGB Inputs Signal to Noise Ratio of Output (VPP/VRMS) 4.43MHz PAL Signal on Y/CVBS Input Residual Frequency at fOSC at 2 fOSC and Higher Harmonics From Max. contrast (0dB) to -10dB contrast 2 fOSC = 4.43MHz, Sharp Typ. fOSC = 4.43MHz, no sharp No trap Filter, Sharp Typ. 3.6 3.0 8 MHz MHz MHz MHz dB 8 No signal on R-Y, B-Y inputs Contrast Max., Drive Max., Saturation Typ., Sharp Typ., Bandwidth 5MHz PAL/SECAM PAL/SECAM 50 25 10 dB 100 50 mVPP mVPP FILTERS VTUN1 VTUN2 Tuning Voltage Range (Pin 8) Cloche Tuning Voltage Range (Pin 9) 3.2 to 4.8 2.5 to 6.5 V V Y DELAY LINE td1p td2 td3p td4 Delay Time PAL Delay Time SECAM Delay Time PAL Delay Time SECAM SVHS mode SVHS mode CVBS mode CVBS mode 330 500 390 550 370 540 425 590 400 580 460 630 ns ns ns ns SHARPNESS CIRCUIT (PAL only) fSharp GSharp Overshoot Pre-shoot After-shoot Coring Center Frequency Gain Variation from Min. to Max. Sharp Amplitude Variation compared to B/W Amplitude Variation compared to B/W Amplitude Variation compared to B/W Coring Range compared to B/W SVHS mode at fSharp 2T pulse, Sharp Max. 2T pulse, Sharp Max. 2T pulse, Sharp Max. 2.5 6 150 -15 -40 10 MHz dB % % % % Y TRAP FILTER fTrap QTrap CRejPN CrejS Trap Frequency PAL Trap Frequency SECAM Trap Quality Factor (Q=1/(fo/f-3dB - f-3dB/fo)) Color Subcarrier Rejection Color Rejection SECAM Mode -0.2 -0.2 Sharpness Min. Sharpness Max. PAL mode, Sharpness Min. at 4.1MHz at 4.4MHz fOSC 4.25 1.7 3 +0.2 +0.2 -0.25 2.8 fosc 3.5 +0.25 MHz 4.2 - 14 4.286 16 18 MHz - 250 0.2 1 µA µA 20 18 18 MHz MHz dB dB dB CHROMINANCE BANDPASS fC QBP Center Frequency Bandpass Quality Factor CLOCHE FILTER fCloche QCloche Resonant Frequency Cloche Quality factor IC5 IL5 Charging Current Leakage Current During burst gate window CHROMA PLL (Pins 2-3) CR2-3 Catching Range Q = 4.43MHz (Pin 3) ±600 Hz 11/24 2112B-05.TBL ACC CAPACITOR (Pin 5) STV2112B ELECTRICAL CHARACTERISTICS (VCC = 9V, T amb = 25oC, unless otherwise specified) (continued) Symbol Parameter Test Conditions Min. Typ. Max. Unit 5 µA µA PLL LOOP FILTER (Pin 4) IC4 IL4 Control Current Leakage Current During burst gate window 400 COLOR DIFFERENCE OUTPUT SIGNALS (Pins 40-41) PAL DEMODULATOR R-Y Output signal Amplitude (Pin 40) VP40 |RED-BLUE| axes = 90o 100/75 colour bar VP41 B-Y Output Signal Amplitude (Pin 41) |RED-BLUE| axes = 90o 100/75 colour bar GPAL Gain Ratio of both Demodulators (B-Y)/(R-Y) |RED-BLUE| axes = 90o 100/75 colour bar VPNDC Output Voltage when colour killed SECAM DEMODULATORS VS40 R-Y Output Signal Amplitude (Pin 40) 100/75 Colour Bar VS41 B-Y Output Signal Amplitude (Pin 41) 100/75 Colour Bar GSECAM Gain Ratio of both Demodulators (B-Y)/(R-Y) VSDC Output Voltage when colour killed PAL /SECAM MATRIX G/R (G-Y)/(R-Y) G/B (G-Y)/(B-Y) 0.40 0.52 0.60 VPP 0.50 0.66 0.80 VPP 1.15 1.27 1.45 - 5.6 5.8 6.0 V 0.8 1.00 1.00 5.4 1.05 1.33 1.27 5.6 1.20 1.40 1.35 5.8 VPP VPP V -0.6 -0.28 -0.51 -0.19 -0.4 -0.15 - 5 +6.5 0 -44 8 dB dB dB No colour No colour 100/75 color bar 100/75 color bar During burst key 2.6 2.6 2.8 2.8 1.05 1.33 150 3.0 3.0 V V VPP VPP µA On Pin 20 50 300 14500 16100 15000 15625 14850 16300 15800 15200 16500 Hz Hz Hz Hz 0.12 0.35 0.02 0.15 0.45 0.03 0.18 0.55 0.05 mA mA mA SATURATION CONTROL SATMax. SATNom. SATMin. Maximum Saturation Control (3F) Nominal Saturation Control (20) Minimum Saturation Control(00) 1VPP CVBS on Pin 20 1VPP CVBS on Pin 20 1VPP CVBS on Pin 20 COLOUR DIFFERENCE INPUT SIGNALS (Pins 38-39) DCRYI DCBYI VRYI VBYI ICL38-39 DC Voltage Pin 39 DC Voltage Pin 38 Input Signal Amplitude Pin 39 Input Signal Amplitude Pin 38 Clamping Current SYNC. SEPARATOR VSync Sync. Pulse Amplitude mV HORIZONTAL OSCILLATOR fH50 fRang Frequency after Divider Frequency Control Range ffree Free Running Frequency when PLL1 open 50Hz input signal Low Frequency High Frequency Value 03hex in register 0Ehex FIRST LOOP FILTER (Pin 33) ILOW-33 IHIGH I V LOW Long Time Constant Output Current Short Time Constant Output Current Very Long Time Constant CRQ 2 tshift 12/24 Control Range from Start of Horizontal Output to Flyback Horizontal Shift Range Horizontal position centered 2 to 14 4 µs µs 2112B-06.TBL SECOND CONTROL LOOP STV2112B ELECTRICAL CHARACTERISTICS (VCC = 9V, T amb = 25oC, unless otherwise specified) (continued) Symbol Parameter Test Conditions Min. Typ. 4.0 5.0 Max. Unit LINE FLYBACK INPUT/SANDCASTLE OUTPUT (Pin 37) VSCO Output Voltage during Burst Key VCL37 Clamped Input Voltage during Flyback tWBG Burst Key Pulse Width tdBG Delay of Start of Burst Key to Start of Sync. 3.7 3.1 V 3.8 3.9 µs µs 5.2 VTH1-37 Blanking Threshold Voltage VTH2-37 PLL2 Threshold Voltage referred to Line Level VCL37 PLL2VTH/VCL37 Input Current During flyback pulse 0.1 26 I37 V 2.5 0.5 0.7 0.9 80 V % 1 mA 30 µs HORIZONTAL OUTPUT (Pin 36) TW36 Output Pulse Width Normal operation V Low36 Voltage Output Low R pull-up = 1kΩ VCC Start VCC Start Level VCC Stop VCC Stop Level : hysteresis I36 Max. Maximum Allowed Output Current 10 mA V36 Max. Maximum Allowed Output Voltage (open collector) 12 V Tss Output Pulse Duty Cycle in soft-start mode (Thigh/(Thigh + Tlow)) 28 1.1 V Voltage on Pin 42 6.7 V Voltage on Pin 42, VCCstart - VCCstop 0.60 V VCC2 = 9V, VCC1 < 6.0V (VCC1 rising) 78 % 10.5 Lines VERTICAL OUTPUT (Pin 35) TW35 Output Pulse Width VLow35 Low Level Output Voltage 4/3 Low Level Ouput Voltage 16/9 FR35 Locking Range fFR-50 Free Frequency (no Video Signal) 50Hz High Level Range (vertical position control) XXXXX000(bin) in Reg. 0Dhex XXXXX111(bin) in Reg. 0Dhex Output Sinking Current 4/3 16/9 VHIGH35 Isink XXXX0XXX (bin) in Reg. 0Ehex XXXX1XXX (bin) in Reg. 0Ehex 1.5 2 0.1 248 2.5 0.5 V V 352 Lines 314 3.5 5.7 3.8 6.3 Lines 4.2 7.0 0.2 0.5 V V mA mA VERTICAL AMPLITUDE CONTROL (Pin 34) V34R Output Voltage Range XX000000(bin) in Reg. 0Chex XX111111(bin) in Reg. 0Chex 1.0 5.6 1.2 6.2 1.5 6.7 V V XX000000(bin) in Reg. 0Fhex XX111111(bin) in Reg. 0Fhex 0.35 4.2 0.5 4.7 0.7 5.2 V V 0.02 0.1 V VR10 Output Voltage Range (volume control) MUT Output Voltage when MUTE 13/24 2112B-07.TBL VOLUME CONTROL AND MUTE (Pin 10) STV2112B ELECTRICAL CHARACTERISTICS (VCC = 9V, Tamb = 25oC unless otherwise specified) (continued) Symbol Parameter Test Conditions Min. Typ. Max. Unit IF STANDARD CONTROL & SWITCH SELECTION (Pin 11) VTV/NEG VTV/POS VStart/Pos VStart/Neg R TV/Neg RTV/Pos R Scart/Pos RScart/Neg Output Voltage in TV Mode and Negative Vision Modulation Output Voltage in TV Mode and Positive Vision Modulation Output Voltage in SCART Mode and Positive Vision Modulation Output Voltage in SCART Mode and Negative Vision Modulation (open collector mode) Output Resistance in TV Mode and Negative Vision Modulation Output Resistance in TV Mode and Positive Vision Modulation Output Resistance in Scart Mode and Positive Vision Modulation Output Resistance in Scart Mode and Negative Vision Modulation (pull-up resistor to VCC) VCC = 9V 0.1 0.7 V VCC = 9V 2.90 3.37 3.80 V VCC = 9V 5.20 5.62 6.10 V VCC = 9V 7.88 9 V 200 Ω 6.7 kΩ 11 kΩ 18 kΩ 2 VTH6-7 C L6-7 ILe ak6-7 14/24 Threshold Voltage Capacitance of each Pin Leakage Current 1.5 Write Mode, 0 level on SDA or SCL 2.25 5 3 10 50 V pF µA 2112B-08.TBL I C BUS INPUTS (Pins 6-7) STV2112B USER CONTROLS Figure 1 : Contrast Control Curve Figure 2 : Saturation Control Curve % % 1 20 25 0 1 00 20 0 80 15 0 60 10 0 40 00 10 1F Co de (HEX) 0 2112B-03.EPS 0 00 10 20 30 3F Code (HEX) Figure 3 : Brightness Control Curve 2112B-04.EPS 50 20 Figure 4 : Peaking Control (2T overshoot) % % 30 160 20 150 140 10 130 0 (20) 100 (30) 10 1F Co de (HEX) 90 0 1 2 3 4 5 6 7 Code (HEX) Figure 5 : Volume Control Curve Ou tput Voltage (P in 10) 6 5 4 3 2 1 0 00 10 20 Code (HEX) 30 3F 2112B-07.EPS 00 2112B-05.EPS 110 15/24 2112B-06.EPS 120 (10) STV2112B INPUT/OUTPUT PIN CONFIGURATION Figure 6 : Pins 2, 3 - CXTL1, SELECT Figure 7 : Pin 4 - CLPF VCC2 VCC2 Pins 2-3 4 Figure 8 : Pin 5 - ACC 2112B-09.EPS G ND2 2112B-08.EPS GND2 Figure 9 : Pin 6 - SDA VCC2 VCC2 6 Figure 10 : Pin 7 - SCL 2112B-11.EPS GND2 2112B-10.EPS 5 GND2 Figure 11 : Pin 8 - FTUN1 VCC2 VCC2 VCC1 8 16/24 GND2 2112B-13.EPS GND2 2112B-12.EPS 7 STV2112B INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 12 : Pin 9 - FTUN2 Figure 13 : Pin 10 - Volume VCC2 VCC2 9 GND2 Figure 14 : Pin 11 - SWI 2112B-15.EPS 2112B-14.EPS 10 GND2 Figure 15 : Pins 12,13,14,16,17,18- RGB Inputs VCC1 VCC2 Pins 12-13-14 16-17-18 GND2 Figure 16 : Pins 15,19 - FBOSD, FBEXT 2112B-17.EPS 2112B-16.EPS 11 GND1 Figure 17 : Pin 20 - Y/CVBS VCC 1 VCC1 VCC 2 20 2112B-19.EPS GND1 2112B-18.EPS P ins 15-19 GND1 17/24 STV2112B INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 18 : Pin 23 - CHR/SVHS VC C 2 Figure 19 : Pins 24, 25, 26 - CG, CR, CB VCC 1 VCC1 P ins 24-25-2 6 23 GND2 Figure 20 : Pins 27, 28, 29 - BO, GO, RO 2112B-21.EPS 2112B-20.EPS 30 GND1 Figure 21 : Pin 30 - ICAT VCC1 VCC1 30 GND1 Figure 22 : Pin 31 - BCL 2112B-23.EPS 2112B-22.EPS Pins 27-28-29 GND1 Figure 23 : Pin 32 - SXTL VCC2 VCC1 VCC1 31 18/24 GND2 2112B-25.EPS GND1 2112B-24.EPS 32 STV2112B INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 24 : Pin 33 - SLPF Figure 25 : Pin 34 - VAMP VC C 2 VCC2 33 GND2 Figure 26 : Pin 35 - VOUT 2112B-27.EPS 2112B-26.EPS 34 GND2 Figure 27 : Pin 36 - HOUT VCC2 VCC2 2112B-28.EPS GND2 Figure 28 : Pin 37 - LFB/SC 2112B-29.EPS 36 35 GND2 Figure 29 : Pins 38, 39 - BYI, RYI VCC 1 VCC 2 VCC2 37 2112B-31.EPS 2112B-30.EPS GND2 P ins 38-39 GND2 19/24 STV2112B INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 30 : Pins 40, 41 - RYO, BYO Figure 31 : Pins 42, 22 - VCC2, VCC1 VCC2 VCC2 VCC1 42 22 1 21 G ND2 GND1 20/24 2112B-33.EPS GND2 2112B-32.EPS P ins 40-41 STV2112B APPLICATION DIAGRAM 470 µF 16V 9V 1 14 2 13 100nF 3.58MHz VCC 2 42 1 GND2 S T V 2 1 8 0 3 10nF 3.3pF 100nF 2 S ELECT BYO 41 3 CXTL1 RYO 40 4 10nF 330kΩ 18kΩ 4.43MHz TO P in 42 270kΩ 4.7nF 5 10nF 4 CLP F RYI 39 5 ACC BYI 38 7 S CL HOUT 36 8 FTUN1 VOUT 35 100nF TO STV8224 S T V 2 1 1 2 B 9 FTUN2 SWI 100nF 3.9kΩ 10 VOL 390 Ω 11 S WI 22nF FROM OS D + TXT 12 BOS D 3.9kΩ 390 Ω 22nF 13 GOS D 22nF TO DEFLECTION S TAGES VAMP 34 1 µF 50V 3.3nF S XTL 32 8 4.02kΩ 1% 4. 7kΩ 680 Ω LFB (He a ter) 1N4148 18kΩ FROM HORIZONTAL STAGE 22kΩ 100nF BCL 31 P in 22 47kΩ ICAT 30 220k Ω 1N4148 470 Ω 14 ROS D RO 29 15 FBOS D GO 28 16 BEXT BO 27 17 GEXT CR 26 18 REXT CB 25 19 FBEXT CG 24 TO CRT AMPLIFIERS 470 Ω 22nF 1k Ω 7 P in 42 503kHz 22nF 2.2kΩ 4.7kΩ S LP F 33 470 Ω OBLK (ove rs ize blanking) 9 1N4148 3.9kΩ 390 Ω 6 47 µF 16V 1kΩ 47pF VOL 100nF 10 9V 9V 100 Ω S CL 11 1nF LFB/S C 37 6 S DA 47pF 10 Ω 100nF 1 µF S DA I2 C BUS 12 10nF 33nF 100 Ω 4.7nF 15kΩ 9V 100nF 22nF 100nF 100nF 75 Ω 220nF Y/CVBS Input 1VP P 75 Ω CHR/S VHS 23 21 GND1 VCC 1 22 CHROMA INPUT (S-VHS) 1kΩ 75 Ω 75 Ω 100nF 75 Ω 470 µF 16V 9V 2112B-34.EPS FROM EXTERNAL RGB 10nF 20 Y/CVBS 75 Ω Notes : - STV2112B requires only 1 XTAL (4.43MHz). - Recommended 4.43MHz XTAL is JAUCH Number 10080082. - XTAL2 selection pin (Pin 2) : we recommend the connection to VCC2 (Pin 42). In the case of STV2112B version, this pin can be left open. 21/24 STV2112B 90o CRT APPLICATIONS VERTICAL STAGE 22Ω 2W Vertical Yoke +12V 1000µF 25V 3.9kΩ 47µF 25V 470Ω 270Ω 1000µF 25V 2.2Ω 220nF 1 OUT 1.8kΩ VOUT (From STV2112B Pin 35) 1.2Ω 2 V+ 15kΩ 4.7kΩ 3 V.SYNC VAMP (From STV2112B Pin 34) 620kΩ 4 V.SIZE 1kΩ 100nF +9V 27kΩ 100kΩ 160kΩ 5 GND 1N4148 BC547 1.3kΩ 47nF 6 SAW 47nF 330kΩ 15kΩ 7 BUFF 15kΩ T D A 1 7 7 1 10kΩ 8 FEEDB +9V 56kΩ 1N4004 560kΩ +24V 470kΩ 100kΩ BC547 4.7µF 10 FLYB 1000µF 25V 100kΩ OPTIONAL 4/3 - 16/9 SWITCHING 22/24 9 VCC 2112B-35.EPS BC557 100µF 35V STV2112B 110o CRT APPLICATIONS : Vertical System with East-West 1 INC43 22pF +24V C9 1000 µF 35V 2 VCC 3 FLYBACK C23 100µF 4 GND +12V R3 330 Ω R19 1.2Ω R31 100 Ω R18 330Ω R20 3.6Ω C34 100pFF 4 REG +9V C20 47 µF VCC C44 220nF 5 VC C 6 LPF R52 4.7kΩ C56 220nF D2 1N4148 7 IN+ R26 10kΩ +12V C31 1.5nF C39 10nF R43 1kΩ FROUT 14 3 VRE T T5 BC547 6 OUT VCC D4 1N4148 SENS P 15 R30 470Ω R81 2.4kΩ +24V C36 10nF 2 S DA +12V C5 2200 µF R28 100Ω R17 330Ω From S TV2112B VOUT Pin35 C10 220nF S ENS M 16 1 S CL SDA C4 1000 µF 25V R2 10Ω 3W D1 1N4004 S T V 2 1 4 5 VCC R45 6.2kΩ E/W MODULATOR C68 4.7 µF 160V R41 3.3kΩ EWIN 12 R50 1.5kΩ OBLK 11 C48 4.7nF VCC R57 22kΩ 7 CVER T R47 39kΩ T6 TIP122 EWO UT 13 C37 1nF R36 3.3kΩ C46 3.3nF OBLK HFLY HFLY 10 C51 33nF To S TV2112B Pin15 D8 1N4148 VC C 8 GND BREATH 9 R55 100k Ω R56 220k Ω R46 100k Ω BCL C54 1nF 2112B-36.EPS SCL 5 OUT R12 1.5Ω Vertical Yoke T D A 8 1 7 2 R54 680k Ω 23/24 STV2112B PACKAGE MECHANICAL DATA 42 PINS - PLASTIC SHRINK DIP E A2 A L A1 E1 B B1 e e1 e2 D c E 42 22 .015 0,38 e3 21 e2 SDIP42 Dimensions A A1 A2 B B1 c D E E1 e e1 e2 e3 L Min. 0.51 3.05 0.36 0.76 0.23 37.85 15.24 12.70 2.54 Millimeters Typ. 3.81 0.46 1.02 0.25 38.10 13.72 1.778 15.24 3.30 Max. 5.08 4.57 0.56 1.14 0.38 38.35 16.00 14.48 18.54 1.52 3.56 Min. 0.020 0.120 0.0142 0.030 0.0090 1.490 0.60 0.50 0.10 Inches Typ. 0.150 0.0181 0.040 0.0098 1.5 0.540 0.070 0.60 0.130 Max. 0.200 0.180 0.0220 0.045 0.0150 1.510 0.629 0.570 0.730 0.060 0.140 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 licence 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 comp onents in lifesupport devicesor systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics 1998 STMicroelectronics - All Rights Reserved Purchase of I2C Components of STMicroelectronics, conveys a license under the Philips I 2C Patent. Rights to use these components in a I 2C system, is granted provided that the system conforms to the I2C Standard Specifications as defined by Philips. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 24/24 SDIP42.TBL 1 PMSDIP42.EPS Gage Plane