STV8223B MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES .. .. .. . VIDEO PLL DEMODULATION SOUND PLL DEMODULATION NEGATIVE MODULATION AGC FOR NEGATIVE MODULATION AUDIO SWITCH DC VOLUME CONTROL VIDEO SWITCH SHRINK24 (Plastic Package) ORDER CODE : STV8223B DESCRIPTION The STV8223B is a pictureand sound IF processor for multistandard application with very few external components and adjustments. It provides the audio and video switches for one SCART plug application. PIN CONNECTIONS 1 24 TUNER AGC STARTING POINT ADJUSTMENT AFC OUTPUT 2 23 TUNER AGC OUTPUT CVBS OUTPUT 3 22 AGC CAPACITOR SWITCHING INPUT (INT/EXT) 4 21 NOT TO BE CONNECTED IF LC 5 20 IF INPUT IF LC 6 19 IF INPUT AUDIO HIGH PASS FILTER 7 18 GROUND 2nd IF SOUND INPUT 8 17 VCC AUDIO AND 2nd IF DECOUPLING 9 16 EXTERNAL AUDIO INPUT INTERNAL VIDEO INPUT 10 15 FM DEMODULATED AUDIO OUTPUT VIDEO SWITCH OUTPUT 11 14 AUDIO SWITCH OUTPUT EXTERNAL VIDEO INPUT 12 13 VOLUME CONTROL + MUTE January 1997 8223B-01.EPS PIF PLL FILTER 1/10 STV8223B BLOCK DIAGRAM EXT CVBS AFC OUTPUT 2 V CC 5 6 1 12 17 18 11 6dB PIF PLL & AFC 19 20 22 TUNER AGC OUTPUT 10 VID AMP IF INPUT SWITCHED CVBS Int/Ext AGC WHITE NOISE & SPOT INVERT 3 LOGIC INTERFACE 4 LIMITER 8 AUDIO Vref 9 SFE 5.5 SFE 6.5 CVBS OUT 23 TUNER AGC DC VOLUME SIF PLL 24 MUTE SWITCHED AUDIO 16 15 EXT AUDIO 7 STV8223B 8223B-02.EPS 14 13 AUDIO OUT ABSOLUTE MAXIMUM RATINGS Value Unit VS Supply Voltage 13.5 V Vx Tuner AGC Voltage VCC V Tstg Storage Temperature Toper Operating Temperature -40, +150 o 0, +70 o C C THERMAL DATA Symbol Rth (j-a) 2/10 Parameter Junction-ambient Thermal Resistance Value Max. 75 Unit o C/W 8223B-01.TBL Parameter 8223B-02.TBL Symbol STV8223B ELECTRICAL CHARACTERISTICS (Tamb = 25°C, VCC = 9V, IF input = 10mVRMS sync level at B/G, Video modulation DSB, D = 90% at B/G, fPC = 38.9MHz, fSC = 33.4MHz, Video BW = 5MHz, Sound carrier input : 5.5MHz, 10mVRMS, fM = 1kHz, Audio BW = 20kHz, ∆f = ±50kHz, Volume attenuation = 0dB, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 8 9 70 12.6 95 V mA SUPPLY VCC ICC Supply Voltage Supply Current I17, VCC = 9V IF AMPLIFIER Input Sensitivity (RMS) Differential Input Resistance Differential Input Capacitance Gain Control Range Max Input Signal V19-20 R 19-20 C 19-20 Gr -3dB Video at Output µVRMS kΩ pF dB mVRMS 70 2 2 68 180 +1dB Video at Output SYNCHRONOUS VIDEO DEMODULATOR Vision Carrier Capture DFPC -1.4 1.6 MHz AFC S2 AFC Slope See Figure 21 µA/kHz 0.2 DEMODULATED VIDEO OUTPUT (Pin 3) VA3 BG vs L VS3 Amplitude Amplitude Difference Top Sync Level Zero Carrier Level Bandwidth Differential Gain Differential Phase Residual Carrier Signal (RMS Value) Residual 2nd Harmonic (RMS Value) Internal Bias of Emitter Follower Signal to Noise Ratio Intermodulation 1.07MHz White Noise Threshold Voltage White Noise Insertion Level Black Noise Threshold Voltage Black Noise Insertion Level BW Dg Dp Vr3c Vr3h I3 S/N VWTH VWIL VBTH VBIL Top Sync to White 2 2.3 B/G B/G -3dB Video Signal 1.6 1.9 4.4 9 6 3 1 1 5 61 52 4.85 3.6 1.3 2.5 Note 1 - Weighted CCIR-567 Note 2 7 3 56 2.6 10 2.2 8 6 10 10 VPP % V V MHz % Degree mV mV mA dB dB V V V V Charging Current Discharge Current Charging/Discharging Ratio I22CBG I22DBG C/D 550 12 950 20 45 1300 28 µA µA 1.5 100 2 170 40 2.5 230 mA µA/dB mA TUNER AGC I23 S23 I23+ Maximum Sinked Current Current Slope Maximum Tuner Plus Sinked Current Vout black white at BW = 5MHz VN (mVRMS) 2. Video carrier relative level = 0dB, Chroma subcarrier level = -3.2dB, Sound carrier relative level = -20dB. AGC voltage (Pin 22) is adjusted to get 1VPP signal on output (Pin 3). 3. Additional sinked current for large increasing steps of input signal when : - Voltage Pin 22 > starting point defined Pin 24. - Output signal (Pin 3) saturated (V 3 < V BTH in BG mode). Notes : 1. S R24 = 5kΩ Note 3 N = 20 log 10 3/10 8223B-03.TBL AGC CIRCUIT STV8223B ELECTRICAL CHARACTERISTICS (continued) (Tamb = 25°C, VCC = 9V, IF input = 10mVRMS sync level at B/G, Video modulation DSB, D = 90% at B/G, fPC = 38.9MHz, fSC = 33.4MHz, Video BW = 5MHz, Sound carrier input : 5.5MHz, 10mVRMS, fM = 1kHz, Audio BW = 20kHz, ∆f = ±50kHz, Volume attenuation = 0dB, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 50 28 0.85 600 55 150 600 4.2 61 33 1.1 0.2 750 60 47 46 47 52 50 52 dB dB dB 72 77 dB 55 70 70 80 70 85 kΩ dB µV 0.1 4.5 0.3 % V 2.2 -0.5 1.9 1.8 2 1.5 55 6 5 1 15 0 +0.5 V V V V dB dB V µA MHz dB 0.2 0.3 0.4 V 1.8 V V FM SOUND DEMODULATION V 8S R8 AMR SVR V15 THD R 15 S/N Input Sensitivity Limiter Input Resistance DC Voltage (Pin 8) Amplitude Modulation Rejection Supply Voltage Rejection Ratio Detected Audio Output Signal Total Harmonic Distortion Internal Deemphasis Resistor Signal to Noise Ratio Black Picture (sync only) White Picture 250kHz Square Wave Note 4 Ripple signal : 100Hz, 0.5VPP See Note 5, Weighted CCIR 468-4, (quasi peak level) input Pin 8 Measurement between IF input (Pins 19-20) and audio output (Pin 15) SAW : K2955 BPF : SFE5.5MB 1.4 1 900 µVRMS Ω V dB dB VRMS % Ω dB VOLUME CONTROL VC Range Control Range See Figure 22 AUDIO SWITCH R 16 CRtk En EXTHD Input Resistance Crosstalk Output Noise Level (Pin 14) THD on External Signal (Pin 14) Audio Reference Voltage (Pin 9) Weighted CCIR 468-4, V13 = 0.5V (quasi peak level) VIN = 2VRMS, Attenuation = 0dB VIDEO SWITCH VDC 12 VS12 V11 VS11 GEX I12 VBW GIN DC Input Level Top Sync. Clamp Level DC Output Level Top Sync. Clamp Level Crosstalk Gain from Ext. Input to Output Output Swing Input Current Bandwidth Gain from Int. Input to Output No signal 1.6 No signal 1.7 5.5 4 V12 = VDC12 = 1.5V VIN = 1VPP 2.3 6.5 5 VTH13 Threshold Voltage Pin 13 CONTROL INPUT Negative Modulation Negative Modulation Video : External - Audio : External Video : Internal - Audio : Internal 7.2 V15 (mVRMS) (dB) where VAM = output amplitude in AM for fM = 1kHz and m = 30% VAM V15 (mVRMS) S = 20 log 5. (dB) VN (mVRMS) N Notes : 4. AMR = 20 log 4/10 8223B-04.TBL MUTE (Pin 13) STV8223B INPUT/OUTPUT PIN CONFIGURATION Figure 1 : PIF PLL Filter Figure 2 : AFC Output 2 Figure 3 : CVBS Output 8223B-04.EPS 8223B-03.EPS 1 Figure 4 : Switching Input INT/EXT 3 8223B-05.EPS 8223B-06.EPS 4 Figure 5 : IFLC Figure 6 : Audio High Pass Filter 6 7 8223B-08.EPS 5 2kΩ 8223B-07.EPS 2kΩ 5/10 STV8223B INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 8 : Internal Video Input 9 8223B-10.EPS 10 8223B-09.EPS 600Ω 8 2nd IF Sound Input (Pin 8) Audio and 2nd IF Decoupling (Pin 9) 600Ω Figure 7 : Figure 9 : Video Switch Output Figure 10 : External Video Input 11 Figure 11 : Volume Control + Mute 8223B-12.EPS 8223B-11.EPS 12 Figure 12 : Audio Switch Output 13 8223B-13.EPS 8223B-14.EPS 14 Figure 13 : FM Demodulated Audio Output Figure 14 : External Audio Input 16 750Ω 6/10 8223B-16.EPS 8223B-15.EPS 15 STV8223B INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 15 : VCC Figure 16 : IF Input 15V 1kΩ 1kΩ 17 Figure 18 : AGC Capacitor 8223B-18.EPS 20 8223B-17.EPS 19 Figure 19 : Tuner AGC Output 23 8223B-20.EPS 8223B-19.EPS 22 Figure 20 : Tuner AGC Starting Point Adjustment 8223B-21.EPS 24 7/10 STV8223B Figure 21 : AFC Voltage Pin 2 vs IF Frequency Figure 22 : Volume Control Attenuation vs V13 0 7 6 5 4 3 2 38.75 38.95 39.15 IF FREQUENCY (MHz) 39.35 Figure 23 : Tuner AGC Output Current vs VIN (R24 is external adjustment Pin 24) -30 -40 -50 -60 -70 -80 1.0 2.0 3.0 4.0 5.0 V13 (V) Figure 24 : Video Signal to Noise Ratio (Pin 3) as a function of IF Input Signal (Pins 19-20) Weighted CCIR-567 80 R24 = 1kΩ R24 = 3kΩ R24 = 5kΩ 1.75 60 S/N (dB) 1.5 70 1.25 1 0.75 50 40 30 0.5 20 0.25 10 0 1 10-1 VIN 10 (mV RMS ) 102 103 0 0.01 0.1 1 VIN (mVRMS) 10 100 8223B-25.EPS 2 8223B-24.EPS TUNER AGC OUTPUT CURRENT (mA) -20 8223B-22.EPS 1 0 38.55 -10 8223B-23.EPS Current Conversion with 100kΩ/100kΩ Bridge VOLUME CONTROL ATTENUATION (dB) AFC VOLTAGE (PIN 2) (V) 8 Figure 25 : Black and White Noise Inverter V3 (V) White Spike Noise Clamp 4.2 3.6 Top White White Noise Level Insertion 2.5 1.9 1.3 Black Noise Level Insertion Top Synchronization Black Spike Noise Clamp t 8/10 8223B-26.EPS 4.85 8223B-27.EPS AFC Output 12V Tuner AGC Output R15 6.8kΩ 9V R16 100kΩ R17 100kΩ 390Ω R34 15Ω R35 C16 2.2µF C33 10µF Tuner AGC 9V Delay C17 10nF DZ1 BZX55C 10V Q4 BC337 R14 27kΩ IF1 1nF P1 10kΩ 1 24 VIDEO SAW FILTER BGDK C32 10nF R13 330Ω C15 100nF 2 23 C18 1µF 3 22 150Ω LC1 68pF C28 18 100nF C20 47µF C21 6 BFP 6.5MHz CF2 BFP 5.5MHz CF1 D2 C25 10µF 1N4148 D1 1N4148 7 STV8223B 19 38.9MHz 5 20 C29 10nF R22 Switching Voltage 4 21 L4 3.3µH 8 17 R25 2.7kΩ 1.8kΩ 10 15 C26 100nF R24 4.7kΩ R27 R20 1kΩ 1.8kΩ R21 C24 1nF 9 16 SW4 STD R28 4.7kΩ 12 13 8.2µH CF3 SW1 C27 470nF Mute TRAP FILTER (5.5MHz - 6.5MHz) L6 R26 3.9kΩ Q3 BC547 +9V 11 14 C7 68nF R12 2.2kΩ R32 10kΩ 10µF C8 R9 560Ω BC547 Q2 R29 75Ω 75Ω R18 R10 22Ω +9V 470nF C30 C31 100nF Volume control 4.7µF C6 220Ω R11 10µF C9 +9V CVBS Output (To SCART) CVBS Ouput External CVBS Input (From SCART) P2 10kΩ 3.3kΩ Switched Sound Output Demodulated Sound Output (To SCART) External Sound Input (From SCART) STV8223B APPLICATION DIAGRAM (B/G/D/K) 9/10 STV8223B PACKAGE MECHANICAL DATA 24 PINS - PLASTIC SHRINK DIP E A2 A L A1 E1 Stand-o ff B B1 e e1 e2 c D E 13 .015 F 24 0,38 12 e3 SDIP24 Dimensions A A1 B B1 C D E E1 e e1 e2 e3 L Min. 0.51 3.05 0.36 0.76 0.23 22.61 7.62 6.10 2.54 Millimeters Typ. 3.30 0.46 1.02 0.25 22.86 6.40 1.778 7.62 3.30 Max. 5.08 4.57 0.56 1.14 0.38 23.11 8.64 6.86 10.92 1.52 3.81 e2 Min. 0.020 0.120 0.0142 0.030 0.0090 0.890 0.30 0.240 0.10 Inches Typ. 0.130 0.0181 0.040 0.0098 0.90 0.252 0.070 0.30 0.130 Max. 0.20 0.180 0.0220 0.045 0.0150 0.910 0.340 0270 0.430 0.060 0.150 Information furni shed is believed to be accurate and reliable. However, SGS-THOMSON Micr oelectronics 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 und erany patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This pu blication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. 1997 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I 2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 10/10 SDIP24.TBL 1 PMSDIP24.EPS Gage Plane