STV8223A MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES .. .. .. . PRELIMINARY DATA VIDEO PLL DEMODULATION SOUND PLL DEMODULATION NEGATIVE MODULATION AGC FOR BG STANDARDS AUDIO SWITCH DC VOLUME CONTROL VIDEO SWITCH SHRINK24 (Plastic Package) ORDER CODE : STV8223A DESCRIPTION The STV8223Ais a picture and sound IF processor for negative modulation 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 (STANDARD + 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 V CC 2nd IF DECOUPLING + MUTE 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 May 1995 This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice. 8223A-01.EPS PIF PLL FILTER 1/10 STV8223A BLOCK DIAGRAM EXT CVBS AFC OUTPUT 2 VCC 5 6 1 12 17 18 19 10 VID AMP IF INPUT 20 SWITCHED CVBS 11 6dB PIF PLL & AFC WHITE NOISE & SPOT INVERT 3 LOGIC INTERFACE 4 SFE 5.5 SFE 6.5 CVBS OUT Int/Ext 22 TUNER AGC OUTPUT AGC BG 23 TUNER AGC SIF PLL DC VOLUME LIMITER & MUTE 8 9 24 14 13 16 15 7 STV8223A EXT AUDIO 8223A-02.EPS SWITCHED AUDIO AUDIO OUT ABSOLUTE MAXIMUM RATINGS Value Unit Supply Voltage 13.5 V Vx Tuner AGC Voltage VCC V Tstg Storage Temperature Toper Operating Temperature -40, +150 o C 0, +70 o C THERMAL DATA Symbol Rth (j-a) 2/10 Parameter Junction-ambient Thermal Resistance Value Max. 75 Unit o C/W 8223A-01.TBL Parameter VS 8223A-02.TBL Symbol STV8223A 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 Supply Voltage Supply Current VCC ICC I17, VCC = 9V IF AMPLIFIER Input Sensitivity (RMS) Differential Input Resistance Differential Input Capacitance Gain Control Range Max Input Signal V19-20 R19-20 C19-20 Gr -3dB Video at Output µVRMS kΩ pF dB mVRMS 70 1.5 2 64 110 +1dB Video at Output SYNCHRONOUS VIDEO DEMODULATOR DFPC Vision Carrier Capture -1.4 1.6 MHz AFC S2 AFC Slope See Figure 20 µA/kHz 0.2 DEMODULATED VIDEO OUTPUT (Pin 3) Amplitude 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 VA3 VS3 BW Dg Dp Vr3c Vr3h I3 S/N VWTH VWIL VBTH VBIL Top Sync to White B/G B/G -3dB Video Signal Note 1 - Weighted CCIR-567 Note 2 2 1.6 2.3 1.9 4.4 7 6 6 1 1 5 58 52 4.85 3.6 1.3 2.5 2.6 2.2 550 12 950 20 45 1300 28 µA µA 1.5 100 2 170 40 2.5 230 mA µA/dB mA 6 3 53 8 8 10 10 VPP V V MHz % Degree mV mV mA dB dB V V V V AGC CIRCUIT (BG MODE) Charging Current Discharge Current Charging/Discharging Ratio I22CBG I22DBG C/D 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 (V3 < V BTH in BG mode). Notes : 1. S R24 = 5kΩ Note 3 N = 20 log 10 3/10 8223A-03.TBL TUNER AGC STV8223A 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. Ma. Unit FM SOUND DEMODULATION V8S R8 AMR SVR V15 THD R 15 S/N Input Sensitivity Limiter Input Resistance Amplitude Modulation Rejection Supply Voltage Rejection Ratio Detected Audio Output Signal Total Harmonic Distortion Internal Deemphasis Resistor Signal to Noise Ratio -3dB FM detected signal Note 5, Weighted CCIR 468-4 600 50 35 1.2 61 17 1.1 0.2 750 55 See Figure 21 72 77 45 70 60 80 0.1 Note 4 Ripple signal : 100Hz, 0.5VPP 50 12 0.85 1.4 1 900 µV kΩ dB dB VRMS % Ω dB VOLUME CONTROL VC Range Control Range dB AUDIO SWITCH R 16 CRtk EXTHD Input Resistance Crosstalk THD on External Signal VIN = 2VRMS, Attenuation = 0dB 75 0.3 kΩ dB % 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 External Input to Output Output Swing Input Current Bandwidth Gain from Internal Input to Output No signal 1.6 No signal 1.7 5.5 4 V12 = VDC12 = 1.5V VIN = 1VPP -0.5 1.9 1.8 2 1.5 55 6 5 1 15 0 2.2 2.3 6.5 5 +0.5 V V V V dB dB V µA MHz dB MUTE (Pin 9 or Pin 13) VTH9 V9 VTH13 Threshold Voltage Pin 9 DC Level when Mute Disabled Threshold Voltage Pin 13 1.7 High impedance controling circuit 0.2 2 2.8 0.3 2.3 0.4 V V V 6.8 4.5 2.2 1.8 6.4 4.1 7.2 4.9 2.6 V V V V V V V Negative Modulation Positive Modulation Threshold 3 Threshold 2 Threshold 1 Video : External - Audio : External Video : Internal - Audio : Internal Video : External - Audio : External Video : Internal - Audio : External Level linked to V CC Level linked to V CC Level linked to V CC 7.2 4.9 2.6 6.4 4.1 1.8 V15 (mVRMS) (dB) where VAM = output amplitude in AM for fM = 1kHz and m = 30% VAM V15 (mVRMS) S 5. (dB) = 20 log VN (mVRMS) N Notes : 4. AMR = 20 log 4/10 8223A-04.TBL CONTROL INPUT STV8223A INPUT/OUTPUT PIN CONFIGURATION Figure 1 : PIF PLL Filter Figure 2 : AFC Output 2 Figure 3 : CVBS Output 8223A-04.EPS 8223A-03.EPS 1 Figure 4 : Switching Input Standard + INT/EXT 3 8223A-05.EPS 8223A-06.EPS 4 Figure 5 : IFLC Figure 6 : Audio High Pass Filter 6 7 8223A-08.EPS 5 2kΩ 8223A-07.EPS 2kΩ 5/10 STV8223A INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 8 : Internal Video Input 560 Ω 2CD IF Sound Input (Pin 8) 2CD IF Decoupling + Mute (Pin 9) 10 9 8223A-09.EPS 8 8223A-10.EPS 560 Ω Figure 7 : Figure 9 : Video Switch Output Figure 10 : External Video Input 11 Figure 11 : Volume Control + Mute 8223A-12.EPS 8223A-11.EPS 12 Figure 12 : Audio Switch Output 13 Figure 13 : FM Demodulated Audio Output 8223A-14.EPS 8223A-13.EPS 14 Figure 14 : External Audio Input 16 1kΩ 6/10 8223A-16.EPS 8223A-15.EPS 15 STV8223A INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 16 : IF Input 17 800 Ω 800 Ω Figure 15 : VCC 15V 20 Figure 17 : AGC Capacitor 8223A-18.EPS 8223A-17.EPS 19 Figure 18 : Tuner AGC Output 23 8223A-21.EPS 8223A-20.EPS 22 Figure 19 : Tuner AGC Starting Point Adjustment 8223A-22.EPS 24 7/10 STV8223A Figure 20 : AFC Voltage Pin 2 vs IF Frequency Figure 21 : Volume Control Attenuation vs V13 0 Current Conversion with 100kΩ/100kΩ Bridge -10 6 5 4 3 2 1 0 38.55 38.75 38.95 39.15 39.35 IF FREQUENCY (MHz) -20 -30 -40 -50 -60 -70 -80 1.0 2.0 3.0 V13 (V) 4.0 5.0 8223A-24.EPS VOLUME CONTROL ATTENUATION (dB) 7 8223A-23.EPS AFC VOLTAGE (PIN 2) (V) 8 2 1.75 1.5 R24 = 1k Ω R24 = 3k Ω R24 = 5k Ω 1.25 1 0.75 0.5 0.25 0 0.1 1 100 200 10 VIN (mV RMS ) 8223A-25.EPS TUNER AGC OUTPUT CURRENT (mA) Figure 22 : Tuner AGC Output Current vs VIN (R24 is external adjustment Pin 24) Figure 23 : 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 8223A-26.EPS 4.85 8223A-27.EPS AFC Output 12V Tuner AGC Output R15 6.8kΩ 9V R16 100kΩ R17 100kΩ 390Ω R34 15Ω R35 C16 47µF C33 10µF Tuner AGC 9V Delay C17 10nF DZ1 BZX55C 10V Q4 BC337 R14 27kΩ IF1 R13 220Ω C15 220nF P1 10kΩ 1 24 VIDEO SAW FILTER BGDK C32 10nF C14 4.7nF 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 1µF 1N4148 D1 8 17 1N4148 7 STV8223A 19 38.9MHz 5 20 C29 10nF R22 Switching Voltage 4 21 3.3µH L4 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 CVBS Output (To SCART) CVBS Ouput External CVBS Input (From SCART) P2 10kΩ +9V Switched Sound Output Demodulated Sound Output (To SCART) External Sound Input (From SCART) STV8223A APPLICATION DIAGRAM 9/10 STV8223A PMSDIP24.WMF PACKAGE MECHANICAL DATA 24 PINS - PLASTIC SHRINK DIP A a1 b b1 b2 b3 D E e e3 e4 F i L Min. Millimeters Typ. 3.3 0.51 0.35 0.2 0.75 0.75 Max. Min. 0.59 0.36 1.42 0.020 0.014 0.008 0.030 0.030 23.11 9.73 7.95 Inches Typ. 0.130 0.023 0.014 0.056 0.910 0.383 0.313 1.778 19.558 7.62 0.070 0.770 0.300 6.86 5.08 2.54 Max. 0270 0.200 0.100 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without noti ce. This publication 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. 1995 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I2C 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 confo rms to the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - 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 Dimensions