STV8224A

STV8224A MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES . . . . . . . PRELIMINARY DATA VIDEO PLL DEMODULATION SOUND PLL DEMODULATION POSITIVE AND NEGATIVE MODULATION AGC FOR BG AND L STANDARDS AUDIO SWITCH DC VOLUME CONTROL VIDEO SWITCH DESCRIPTION The STV8224Ais a picture and 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. AM sound demodulation is performed with the STV8225 add-on. PIN CONNECTIONS SHRINK24 (Plastic Package) ORDER CODE : STV8224A PIF PLL FILTER AFC OUTPUT CVBS OUTPUT SWITCHING INPUT (STANDARD + INT/EXT) IF LC IF LC AUDIO HIGH PASS FILTER 2nd IF SOUND INPUT 2nd IF DECOUPLING + MUTE 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 TUNER AGC STARTING POINT ADJUSTMENT TUNER AGC OUTPUT AGC CAPACITOR AGC CAPACITOR (L STANDARD) IF INPUT IF INPUT GROUND V CC EXTERNAL AUDIO INPUT FM DEMODULATED AUDIO OUTPUT AUDIO SWITCH OUTPUT VOLUME CONTROL + MUTE 8224A-01.EPS May 1995 This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice. 1/12 STV8224A BLOCK DIAGRAM EXT CVBS AFC OUTPUT VCC 5 6 1 12 6dB 2 17 18 11 10 SWITCHED CVBS PIF PLL & AFC 19 IF INPUT 20 21 AGC 22 TUNER AGC OUTPUT 23 TUNER AGC 24 14 13 DC VOLUME VID AMP WHITE NOISE & SPOT INVERT 3 SFE 5.5 SFE 6.5 CVBS OUT Int/Ext LOGIC INTERFACE BG/L SIF PLL LIMITER & MUTE 8 9 4 16 15 7 STV8224A 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 2/12 8224A-02.TBL THERMAL DATA 8224A-01.TBL V 8224A-02.EPS SWITCHED AUDIO STV8224A ELECTRICAL CHARACTERISTICS (Tamb = 25°C, VCC = 9V, IF input = 10mVRMS sync level at B/G, Peak-white level at L, Video modulation DSB, D = 90% at B/G, D = 95% at L, 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 Supply Voltage Supply Current I17, VCC = 9V 8 9 70 12.6 95 V mA µVRMS kΩ pF dB mVRMS Parameter Test Conditions Min. Typ. Max. Unit IF AMPLIFIER V19-20 R19-20 C19-20 Gr Input Sensitivity (RMS) Differential Input Resistance Differential Input Capacitance Gain Control Range Max Input Signal SYNCHRONOUS VIDEO DEMODULATOR DFPC AFC S2 AFC Slope See Figure 21 0.2 µA/kHz Vision Carrier Capture -1.4 1.6 MHz +1dB Video at Output -3dB Video at Output 70 1.5 2 64 110 DEMODULATED VIDEO OUTPUT (Pin 3) VA3 BG vs L VS3 Amplitude Amplitude Difference Top Sync Level Zero Carrier Level BW Dg Dp Vr3c Vr3h I3 S/N VWTH VWIL VBTH VBIL 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 Note 1 - Weighted CCIR-567 Note 2 3 53 B/G and L B/G L -3dB Video Signal 6 1.6 1.9 4.4 1.8 7 6 6 1 1 5 58 52 4.85 3.6 1.3 2.5 8 8 10 10 Top Sync to White 2 2.3 2.6 10 2.2 VPP % V V V MHz % Degree mV mV mA dB dB V V V V µA µA AGC CIRCUIT (BG MODE) I22DBG C/D Notes : 1. S Discharge Current Charging/Discharging Ratio N = 20 log 10 12 20 45 28 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). 3/12 8224A-03.TBL I22CBG Charging Current 550 950 1300 STV8224A ELECTRICAL CHARACTERISTICS (continued) (Tamb = 25°C, VCC = 9V, IF input = 10mVRMS sync level at B/G, Peak-white level at L, Video modulation DSB, D = 90% at B/G, D = 95% at L, 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 AGC CIRCUIT (L MODE) I22CL I22DL I22CL+ Charging Current Discharge Current Additional Charging Current Threshold Voltage Level for Additional Charging Current I22DL+ Additional Discharging Current Threshold Voltage Level for Additional Discharging Current TUNER AGC I23 S23 I23+ Maximum Sinked Current Current Slope Maximum Tuner Plus Sinked Current R24 = 5kΩ Note 6 1.5 100 2 170 40 2.5 230 mA µA/dB mA µV kΩ dB dB 1.4 1 900 VRMS % Ω dB Refered to Pin 3 L in case of missing, VITS Pulses and no White in Video Content Refered to Pin 3 28 Note 3 2 3.3 0.3 5 2.75 40 2.25 56 4.5 mA µA µA V µA V Parameter Test Conditions Min. Typ. Max. Unit FM SOUND DEMODULATION V8S R8 AMR SVR V15 THD R15 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 Note 5, Weighted CCIR 468-4 600 50 Note 4 Ripple signal : 100Hz, 0.5VPP 50 12 0.85 -3dB FM detected signal 35 1.2 61 17 1.1 0.2 750 55 VOLUME CONTROL VC Range Control Range See Figure 22 72 77 dB kΩ dB 0.3 % AUDIO SWITCH CRtk EXTHD Crosstalk THD on External Signal VIN = 2VRMS, Attenuation = 0dB 70 80 0.1 8224A-04.TBL R16 Input Resistance 45 60 75 Notes : 3. Triggered on white level V15 (mVRMS) 4. AMR = 20 log (dB) where VAM = output amplitude in AM for fM = 1kHz and m = 30% VAM S V15 (mVRMS) 5. = 20 log (dB) VN (mVRMS) N 6. 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, V3 > V WTH in L mode). 4/12 STV8224A ELECTRICAL CHARACTERISTICS (continued) (Tamb = 25°C, VCC = 9V, IF input = 10mVRMS sync level at B/G, Peak-white level at L, Video modulation DSB, D = 90% at B/G, D = 95% at L, 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 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 V12 = VDC12 = 1.5V VIN = 1VPP -0.5 5.5 4 No signal 1.7 No signal 1.6 1.9 1.8 2 1.5 55 6 5 1 15 0 +0.5 5 6.5 2.3 2.2 V V V V dB dB V µA MHz dB Parameter Test Conditions Min. Typ. Max. Unit MUTE (Pin 9 or Pin 13) VTH9 V9 VTH13 Threshold Voltage Pin 9 DC Level when Mute Disabled Threshold Voltage Pin 13 High impedance controling circuit 0.2 1.7 2 2.8 0.3 0.4 2.3 V V V CONTROL INPUT 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 1.8 4.9 2.6 6.4 4.1 1.8 6.8 4.5 2.2 6.4 4.1 7.2 4.9 2.6 V V V V V V 8224A-05.TBL V 5/12 STV8224A INPUT/OUTPUT PIN CONFIGURATION Figure 1 : PIF PLL Filter Figure 2 : AFC Output 2 1 8224A-03.EPS Figure 3 : CVBS Output Figure 4 : Switching Input Standard + INT/EXT 3 4 Figure 5 : IFLC 8224A-05.EPS Figure 6 : Audio High Pass Filter 2kΩ 2kΩ 5 6 7 8224A-07.EPS 6/12 8224A-08.EPS 8224A-06.EPS 8224A-04.EPS STV8224A INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 7 : 2CD IF Sound Input (Pin 8) 2CD IF Decoupling + Mute (Pin 9) Figure 8 : Internal Video Input 560 Ω 560 Ω 8 9 10 Figure 9 : Video Switch Output 8224A-09.EPS Figure 10 : External Video Input 11 12 8224A-11.EPS Figure 11 : Volume Control + Mute Figure 12 : Audio Switch Output 13 14 8224A-13.EPS 8224A-14.EPS Figure 13 : FM Demodulated Audio Output Figure 14 : External Audio Input 1k Ω 15 8224A-15.EPS 16 7/12 8224A-16.EPS 8224A-12.EPS 8224A-10.EPS STV8224A INPUT/OUTPUT PIN CONFIGURATION (continued) Figure 15 : VCC Figure 16 : IF Input 800 Ω 17 15V 19 800 Ω 20 8224A-17.EPS Figure 17 : AGC Capacitor Figure 18 : AGC Capacitor 21 22 8224A-19.EPS 8224A-20.EPS Figure 19 : Tuner AGC Output Figure 20 : Tuner AGC Starting Point Adjustment 23 24 8224A-21.EPS 8224A-22.EPS 8/12 8224A-18.EPS STV8224A Figure 21 : AFC Voltage Pin 2 vs IF Frequency 8 AFC VOLTAGE (PIN 2) (V) 7 6 5 4 3 2 1 8224A-26.EPS Figure 22 : Volume Control Attenuation vs V13 0 VOLUME CONTROL ATTENUATION (dB) -10 -20 -30 -40 -50 -60 -70 1.0 2.0 3.0 V13 (V) 4.0 5.0 8224A-27.EPS 8224A-29.EPS Current Conversion with 100kΩ/100kΩ Bridge 0 38.55 -80 38.75 38.95 39.15 39.35 IF FREQUENCY (MHz) 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 0.1 1 10 VIN (mV RMS ) 100 200 8224A-28.EPS R24 = 1k Ω R24 = 3k Ω R24 = 5k Ω 0 Figure 24 : 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 9/12 10/12 C9 10µF L4 R11 220Ω 10µF C21 47µF C20 C18 1 µF C19 47nF 100nF 20 19 18 17 16 15 14 13 22 21 24 23 STV8224A External Sound Input (From SCART) C8 3.3µH C6 C7 68nF 4.7µF IF1 VIDEO SAW FILTER BGDK R32 10kΩ Demodulated Sound Output (To SCART) Switched Sound Output APPLICATION DIAGRAM (B/G/D/K) STV8224A Tuner AGC Output +9V Volume control Mute C31 100nF SW1 P2 10k Ω C16 47µF P1 10k Ω R14 27k Ω R15 6.8kΩ C17 10nF STV8224A 1 2 3 4 5 6 7 8 9 10 11 12 12V LC1 C15 220nF R13 220Ω 38.9MHz C29 10nF R24 4.7kΩ C24 1nF +9V C14 4.7nF C25 1µF C26 100nF C27 470nF R35 Q4 BC337 15Ω Tuner AGC 9V Delay C30 470nF R34 C33 10µF 390Ω R29 75Ω External CVBS Input (From SCART) 9V DZ1 BZX55C 10V CVBS Ouput R28 4.7kΩ Q3 BC547 +9V R17 100k Ω C32 10nF Switching Voltage C28 68pF R20 1kΩ 1N4148 D2 1.8kΩ R25 2.7kΩ BFP 5.5MHz CF1 R21 AFC Output R16 100k Ω R26 3.9kΩ SW4 STD R10 22Ω BC547 Q2 R27 R18 TRAP FILTER (5.5MHz - 6.5MHz) L6 R12 2.2kΩ CVBS Output (To SCART) BFP 6.5MHz CF2 D1 1N4148 R22 150Ω 1.8kΩ 8.2µH CF3 R9 560Ω 75Ω 8224A-25.EPS L7 C11 47µF C12 R11 220Ω 10µF Sound Output (To SCART) 100nF C8 10µF External Sound Input (From SCART) 3.3µH C9 C10 22µF 14 13 12 11 10 9 8 IF2 SOUND SAW FILTER L STD IC1 1 2 3 4 5 6 7 STV8225 L4 3.3µH C21 47µF C20 C17 10nF 100nF 20 19 18 17 16 15 14 13 C13 10µF Level Switch C23 10µF C22 10µF IF1 APPLICATION DIAGRAM (B/G/D/K, L) STV8224A - STV8225 VIDEO SAW FILTER BGDKL C7 68nF C6 4.7µF Switched Sound Output R32 10kΩ +9V Volume Control P2 10kΩ C31 100nF Tuner AGC Output C18 1µF P1 10kΩ 24 23 22 21 C16 47µF Mute R14 27kΩ C19 47nF R15 6.8kΩ IC2 1 2 3 4 5 6 7 8 9 10 11 12 STV8224A SW1 12V LC1 C15 220nF R13 220Ω 38.9MHz C29 10nF C24 1nF R24 4.7kΩ R21 D2 1N4148 1.8kΩ R20 1kΩ D1 1N4148 R22 150Ω R27 1.8kΩ R25 2.7kΩ R26 3.9kΩ BFP 6.5MHz CF2 C14 4.7nF C25 1 µF C26 100nF +9V R35 Q4 BC337 15Ω 9V Tuner AGC Delay R34 C33 10µF C30 470nF 390 Ω R29 75Ω C27 470nF External CVBS Input (From SCART) 9V DZ1 BZX55C 10V CVBS Ouput R28 4.7kΩ Q3 BC547 +9V SW4 STD R17 100kΩ C32 10nF C28 Switching Voltage 68pF BFP 5.5MHz CF1 AFC Output R16 100kΩ R10 22Ω BC547 Q2 TRAP FILTER (5.5MHz - 6.5MHz) L6 8.2µH CF3 R12 2.2kΩ R9 560Ω R18 75Ω CVBS Output (to SCART) STV8224A 11/12 8224A-24.EPS STV8224A PACKAGE MECHANICAL DATA 24 PINS - PLASTIC SHRINK DIP Dimensions A a1 b b1 b2 b3 D E e e3 e4 F i L Min. 0.51 0.35 0.2 0.75 0.75 7.95 Millimeters Typ. 3.3 Max. Min. 0.020 0.014 0.008 0.030 0.030 0.313 Inches Typ. 0.130 Max. 0.59 0.36 1.42 23.11 9.73 1.778 19.558 7.62 6.86 5.08 0.023 0.014 0.056 0.910 0.383 0.070 0.770 0.300 SDIP24.TBL 0270 0.200 0.100 2.54 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. 12/12 PMSDIP24.WMF