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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) 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 PIF PLL FILTER AFC OUTPUT CVBS OUTPUT SWITCHING INPUT (INT/EXT) IF LC IF LC AUDIO HIGH PASS FILTER 2nd IF SOUND INPUT AUDIO AND 2nd IF DECOUPLING INTERNAL VIDEO INPUT VIDEO SWITCH OUTPUT EXTERNAL VIDEO INPUT 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 ORDER CODE : STV8223B TUNER AGC STARTING POINT ADJUSTMENT TUNER AGC OUTPUT AGC CAPACITOR NOT TO BE CONNECTED IF INPUT IF INPUT GROUND VCC EXTERNAL AUDIO INPUT FM DEMODULATED AUDIO OUTPUT AUDIO SWITCH OUTPUT VOLUME CONTROL + MUTE 8223B-01.EPS January 1997 1/10 STV8223B BLOCK DIAGRAM EXT CVBS AFC OUTPUT V CC 5 6 1 12 6dB 2 17 18 11 10 SWITCHED CVBS PIF PLL & AFC 19 IF INPUT 20 VID AMP WHITE NOISE & SPOT INVERT 3 SFE 5.5 SFE 6.5 CVBS OUT 22 TUNER AGC OUTPUT AGC Int/Ext LOGIC INTERFACE 4 23 TUNER AGC 24 AUDIO Vref MUTE 14 13 16 15 7 9 DC VOLUME SIF PLL LIMITER 8 STV8223B SWITCHED AUDIO EXT AUDIO AUDIO OUT ABSOLUTE MAXIMUM RATINGS Symbol VS Vx Tstg Toper Supply Voltage Tuner AGC Voltage Storage Temperature Operating Temperature Parameter Value 13.5 VCC -40, +150 0, +70 Unit V o o C C Symbol Rth (j-a) Parameter Junction-ambient Thermal Resistance Max. Value 75 Unit o C/W 2/10 8223B-02.TBL THERMAL DATA 8223B-01.TBL V 8223B-02.EPS STV8223B ELECTRICAL CHARACTERISTICS (Tamb = 25C, 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 SUPPLY VCC ICC V19-20 R 19-20 C 19-20 Gr Supply Voltage Supply Current Input Sensitivity (RMS) Differential Input Resistance Differential Input Capacitance Gain Control Range Max Input Signal Vision Carrier Capture AFC Slope 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 Charging Current Discharge Current Charging/Discharging Ratio Maximum Sinked Current Current Slope Maximum Tuner Plus Sinked Current S Parameter Test Conditions Min. 8 Typ. 9 70 70 2 2 68 180 Max. 12.6 95 Unit V mA VRMS k pF dB mVRMS I17, VCC = 9V -3dB Video at Output IF AMPLIFIER +1dB Video at Output -1.4 See Figure 21 Top Sync to White B/G B/G -3dB Video Signal 2 1.6 7 SYNCHRONOUS VIDEO DEMODULATOR DFPC AFC S2 VA3 BG vs L VS3 BW Dg Dp Vr3c Vr3h I3 S/N VWTH VWIL VBTH VBIL I22CBG I22DBG C/D I23 S23 I23+ Notes : 1. 1.6 0.2 2.3 1.9 4.4 9 6 3 1 1 5 61 52 4.85 3.6 1.3 2.5 950 20 45 2 170 40 2.6 10 2.2 MHz A/kHz VPP % V V MHz % Degree mV mV mA dB dB V V V V A A 8223B-03.TBL DEMODULATED VIDEO OUTPUT (Pin 3) 8 6 10 10 Note 1 - Weighted CCIR-567 Note 2 3 56 AGC CIRCUIT 550 12 1300 28 TUNER AGC R24 = 5k Note 3 1.5 100 2.5 230 mA A/dB mA 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 (V3 < V BTH in BG mode). N = 20 log 10 3/10 STV8223B ELECTRICAL CHARACTERISTICS (continued) (Tamb = 25C, 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 V 8S R8 AMR SVR V15 THD R 15 S/N Parameter 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 Test Conditions Min. Typ. Max. 150 600 4.2 61 33 1.1 0.2 750 60 Unit VRMS V dB dB VRMS % dB FM SOUND DEMODULATION Note 4 Ripple signal : 100Hz, 0.5VPP 50 28 0.85 600 55 1.4 1 900 Black Picture (sync only) White Picture 250kHz Square Wave VOLUME CONTROL VC Range R 16 CRtk En EXTHD Control Range Input Resistance Crosstalk Output Noise Level (Pin 14) THD on External Signal (Pin 14) Audio Reference Voltage (Pin 9) 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 Threshold Voltage Pin 13 Negative Modulation Negative Modulation Notes : 4. AMR = 20 log 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 47 46 47 52 50 52 dB dB dB See Figure 22 72 55 70 77 70 80 70 0.1 4.5 85 dB k dB V % V V V V V dB dB V A MHz dB V V V 8223B-04.TBL AUDIO SWITCH Weighted CCIR 468-4, V13 = 0.5V (quasi peak level) VIN = 2VRMS, Attenuation = 0dB 0.3 VIDEO SWITCH VDC 12 VS12 V11 VS11 GEX I12 VBW GIN VTH13 No signal No signal 1.6 1.7 1.9 1.8 2 1.5 55 6 5 1 15 0 0.3 2.2 2.3 5.5 4 V12 = VDC12 = 1.5V VIN = 1VPP -0.5 0.2 Video : External - Audio : External Video : Internal - Audio : Internal 7.2 6.5 5 +0.5 0.4 MUTE (Pin 13) CONTROL INPUT 1.8 V15 (mVRMS) (dB) where VAM = output amplitude in AM for fM = 1kHz and m = 30% VAM V15 (mV ) S RMS = 20 log 5. (dB) VN (mVRMS) N 4/10 STV8223B INPUT/OUTPUT PIN CONFIGURATION Figure 1 : PIF PLL Filter Figure 2 : AFC Output 2 1 8223B-03.EPS Figure 3 : CVBS Output Figure 4 : Switching Input INT/EXT 3 4 Figure 5 : IFLC 8223B-05.EPS Figure 6 : Audio High Pass Filter 2k 2k 5 6 7 8223B-07.EPS 5/10 8223B-08.EPS 8223B-06.EPS 8223B-04.EPS STV8223B INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 7 : 2nd IF Sound Input (Pin 8) Audio and 2nd IF Decoupling (Pin 9) Figure 8 : Internal Video Input 600 600 8 9 10 Figure 9 : Video Switch Output 8223B-09.EPS Figure 10 : External Video Input 11 12 8223B-11.EPS Figure 11 : Volume Control + Mute Figure 12 : Audio Switch Output 13 14 8223B-14.EPS 8223B-13.EPS Figure 13 : FM Demodulated Audio Output Figure 14 : External Audio Input 16 750 15 8223B-15.EPS 8223B-16.EPS 6/10 8223B-12.EPS 8223B-10.EPS STV8223B INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 15 : VCC Figure 16 : IF Input 1k 15V 19 1k 17 20 8223B-17.EPS Figure 18 : AGC Capacitor Figure 19 : Tuner AGC Output 23 22 8223B-19.EPS 8223B-20.EPS 8223B-21.EPS Figure 20 : Tuner AGC Starting Point Adjustment 24 7/10 8223B-18.EPS STV8223B Figure 21 : AFC Voltage Pin 2 vs IF Frequency 8 AFC VOLTAGE (PIN 2) (V) VOLUME CONTROL ATTENUATION (dB) 7 6 5 4 3 2 1 8223B-22.EPS Figure 22 : Volume Control Attenuation vs V13 0 -10 -20 -30 -40 -50 -60 -70 1.0 2.0 3.0 V13 (V) 4.0 5.0 8223B-23.EPS 8223B-26.EPS 8223B-25.EPS Current Conversion with 100k/100k Bridge 0 38.55 -80 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) TUNER AGC OUTPUT CURRENT (mA) 2 1.75 1.5 1.25 1 0.75 0.5 0.25 8223B-24.EPS Figure 24 : Video Signal to Noise Ratio (Pin 3) as a function of IF Input Signal (Pins 19-20) Weighted CCIR-567 80 70 60 S/N (dB) 50 40 30 20 10 R24 = 1k R24 = 3k R24 = 5k 0 10-1 1 VIN 10 (mV RMS ) 102 103 0 0.01 0.1 1 VIN (mVRMS) 10 100 Figure 25 : Black and White Noise Inverter V3 (V) 4.85 4.2 3.6 2.5 1.9 1.3 White Spike Noise Clamp Top White White Noise Level Insertion Black Noise Level Insertion Top Synchronization Black Spike Noise Clamp t 8/10 C9 10F L4 R11 220 10F C21 47F C20 C18 1F 100nF 22 21 20 19 18 17 16 15 14 13 24 23 External Sound Input (From SCART) C8 3.3H C6 C7 68nF 4.7F IF1 VIDEO SAW FILTER BGDK R32 10k Demodulated Sound Output (To SCART) Switched Sound Output 3.3k +9V APPLICATION DIAGRAM (B/G/D/K) Tuner AGC Output Volume control Mute C31 100nF SW1 C16 2.2F P1 10k R14 27k P2 10k R15 6.8k C17 10nF STV8223B 1 2 3 4 5 6 7 8 9 10 11 12 12V LC1 C25 10F C26 100nF R35 Q4 BC337 1nF C15 100nF R13 330 38.9MHz C29 10nF R24 4.7k C24 1nF +9V Tuner AGC 9V Delay 15 C30 470nF R34 C33 10F 390 R29 75 C27 470nF External CVBS Input (From SCART) 9V DZ1 BZX55C 10V CVBS Ouput R28 4.7k Q3 BC547 +9V SW4 STD R17 100k Switching Voltage C28 1.8k 68pF 1N4148 D2 BFP 5.5MHz CF1 R21 AFC Output C32 10nF R20 1k R16 100k R25 2.7k R26 3.9k R10 22 BC547 BFP 6.5MHz CF2 D1 1N4148 R22 150 Q2 R27 1.8k TRAP FILTER (5.5MHz - 6.5MHz) L6 8.2H CF3 R12 2.2k R9 560 R18 75 CVBS Output (To SCART) STV8223B 9/10 8223B-27.EPS STV8223B PACKAGE MECHANICAL DATA 24 PINS - PLASTIC SHRINK DIP E E1 A1 A2 Stand-o ff B B1 e e1 e2 L c D E 24 13 F .015 0,38 Gage Plane A 1 12 e3 SDIP24 e2 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 Millimeters Typ. Max. 5.08 4.57 0.56 1.14 0.38 23.11 8.64 6.86 Min. 0.020 0.120 0.0142 0.030 0.0090 0.890 0.30 0.240 Inches Typ. Max. 0.20 0.180 0.0220 0.045 0.0150 0.910 0.340 0270 3.30 0.46 1.02 0.25 22.86 6.40 1.778 7.62 0.130 0.0181 0.040 0.0098 0.90 0.252 0.070 0.30 2.54 3.30 0.10 0.130 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. (c) 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 10.92 1.52 3.81 0.430 0.060 0.150 PMSDIP24.EPS |
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