STV8224A Fast Delivery |IC PHOENIX CO.,LIMITED

STV8224A ,MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHESELECTRICAL CHARACTERISTICS (continued)(T =25°C, V = 9V, IF input = 10mV sync level at B/G, Peak-whi ..
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STV8224A
MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES
STV8224A
MULTISTANDARD VIDEO AND SOUND IF SYSTEM
WITH AUDIO AND VIDEO SWITCHES
PRELIMINARY DATA
TUNER AGC STARTING POINT ADJUSTMENT
TUNER AGC OUTPUT
AGC CAPACITOR
AGC CAPACITOR(L STANDARD) INPUT INPUT
GROUND
EXTERNAL AUDIO INPUT DEMODULATEDAUDIO OUTPUT
AUDIO SWITCH OUTPUT
VOLUME CONTROL+ MUTE
PIF PLL FILTER
AFC OUTPUT
CVBS OUTPUT
SWITCHING INPUT (STANDARD+ INT/EXT)LCLC
AUDIO HIGH PASS FILTER
2ndIF SOUND INPUT
2ndIF DECOUPLING+ MUTE
INTERNAL VIDEO INPUT
VIDEO SWITCH OUTPUT
EXTERNAL VIDEO INPUT
PIN CONNECTIONS
SHRINK24
(Plastic Package)
ORDER CODE: STV8224A
.VIDEO PLL DEMODULATION.SOUND PLL DEMODULATION.POSITIVE AND NEGATIVE MODULATION.AGC FOR BG ANDL STANDARDS.AUDIO SWITCH.DC VOLUME CONTROL.VIDEO SWITCH
DESCRIPTION
The STV8224Ais apicture and soundIF processor
for multistandard applicationwith very fewexternal
components and adjustments. provides the audio and video switches for one
SCART plug application. sound demodulationis performed with the
STV8225 add-on.
TUNER
AGC
OUTPUT
AFC
OUTPUT
EXTCVBS
SWITCHED
CVBS
CVBS
OUT
SWITCHED
AUDIO
STV8224A
Int/Ext
BG/L
SFE6.5SFE5.5
AUDIO
OUT
EXT
AUDIO INPUT 13 15 717125162
PIFPLL AFC
VID
AMP
6dB
VCC
WHITE NOISE
SPOT INVERT
LOGIC
INTERFACE
LIMITER MUTE
SIF
PLLDCVOLUMETUNERAGC
AGC
8224A-02.EPS
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit Supply Voltage 13.5 V Tuner AGC Voltage VCC V
Tstg Storage Temperature -40, +150 oC
Toper Operating Temperature 0, +70 oC
8224A-01.TBL
THERMAL DATA
Symbol Parameter Value Unit
Rth(j-a) Junction-ambient Thermal Resistance Max. 75 o C/W
8224A-02.TBL
STV8224A
ELECTRICAL CHARACTERISTICS
(Tamb =25°C, VCC= 9V,IF input= 10mVRMS sync levelat B/G, Peak-white levelatL,
Video modulation DSB,D= 90%at B/G,D= 95%atL, fPC= 38.9MHz,fSC= 33.4MHz,
Video BW= 5MHz, Sound carrier input: 5.5MHz,10mVRMS,fM= 1kHz, Audio BW= 20kHz, Δf= ±50kHz,
Volume attenuation= 0dB, unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
SUPPLY
VCC Supply Voltage 8 9 12.6 V
ICC Supply Current I17,VCC =9V 70 95 mA AMPLIFIER
V19-20 Input Sensitivity (RMS) -3dB Videoat Output 70 μVRMS
R19-20 Differential Input Resistance 1.5 kΩ
C19-20 Differential Input Capacitance 2 pF Gain Control Range 64 dB
Max Input Signal +1dB Videoat Output 110 mVRMS
SYNCHRONOUS VIDEO DEMODULATOR
DFPC Vision Carrier Capture -1.4 1.6 MHz
AFC AFC Slope See Figure21 0.2 μA/kHz
DEMODULATED VIDEO OUTPUT (Pin3)
VA3 Amplitude Top Syncto White 2 2.3 2.6 VPPvsL Amplitude Difference 10 %
VS3 Top Sync Level B/G andL 1.6 1.9 2.2 V
Zero Carrier Level B/G
1.8 Bandwidth -3dB Video Signal 6 7 MHz Differential Gain 6 8 % Differential Phase 6 8 Degree
Vr3c Residual Carrier Signal (RMS Value) 1 10 mV
Vr3h Residual 2nd Harmonic (RMS Value) 1 10 mV Internal Biasof Emitter Follower 3 5 mA
S/N Signal toNoise Ratio Note1- Weighted CCIR-567 53 58 dB
Intermodulation 1.07MHz Note2 52 dB
VWTH White Noise Threshold Voltage 4.85 V
VWIL White Noise Insertion Level 3.6 V
VBTH Black Noise Threshold Voltage 1.3 V
VBIL Black Noise Insertion Level 2.5 V
AGC CIRCUIT (BG MODE)
I22CBG Charging Current 550 950 1300 μA
I22DBG Discharge Current 12 20 28 μA
C/D Charging/Discharging Ratio 45
Notes:1.S=20 log10Vout blackwhite (mVRMS)atBW= 5MHz Video carrier relative level= 0dB, Chroma subcarrier level= -3.2dB, Sound carrier relative level= -20dB. AGC voltage (Pin22) adjustedtoget 1VPP signalon output (Pin3).
8224A-03.TBL
STV8224A
ELECTRICAL CHARACTERISTICS (continued)
(Tamb =25°C, VCC= 9V,IF input= 10mVRMS sync levelat B/G, Peak-white levelatL,
Video modulation DSB,D= 90%at B/G,D= 95%atL, fPC= 38.9MHz, fSC= 33.4MHz,
Video BW= 5MHz, Sound carrier input: 5.5MHz, 10mVRMS,fM =1kHz, Audio BW= 20kHz, Δf= ±50kHz,
Volume attenuation= 0dB, unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
AGC CIRCUIT (LMODE)
I22CL Charging Current Note3 2 3.3 4.5 mA
I22DL Discharge Current 0.3 μA
I22CL+ Additional Charging Current Lin caseof missing, VITS Pulses
andno White inVideo Content μA
Threshold Voltage Levelfor
Additional Charging Current
Referedto Pin3 2.75 V
I22DL+ Additional Discharging Current 28 40 56 μA
Threshold Voltage Levelfor
Additional Discharging Current
Referedto Pin3 2.25 V
TUNER AGC
I23 Maximum Sinked Current 1.5 2 2.5 mA
S23 Current Slope R24 =5kΩ 100 170 230 μA/dB
I23+ Maximum Tuner Plus Sinked Current Note6 40 mA SOUND DEMODULATION
V8S Input Sensitivity -3dB FM detected signal 35 μV Limiter Input Resistance 1.2 kΩ
AMR Amplitude Modulation Rejection Note4 50 61 dB
SVR Supply Voltage Rejection Ratio Ripple signal: 100Hz, 0.5VPP 12 17 dB
V15 Detected Audio Output Signal 0.85 1.1 1.4 VRMS
THD Total Harmonic Distortion 0.2 1 %
R15 Internal Deemphasis Resistor 600 750 900 Ω
S/N Signalto Noise Ratio Note5, Weighted CCIR 468-4 50 55 dB
VOLUME CONTROL Range Control Range See Figure22 72 77 dB
AUDIO SWITCH
R16 Input Resistance 45 60 75 kΩ
CRtk Crosstalk 70 80 dB
EXTHD THDon External Signal VIN =2VRMS, Attenuation= 0dB 0.1 0.3 %
Notes:3. Triggeredon white level AMR=20log V15(mVRMS)
VAM (dB) whereVAM= output amplitudeinAMforfM= 1kHzandm =30%S=20log V15(mVRMS) (mVRMS) (dB) Additional sinked currentfor large increasing stepsof input signal when: VoltagePin22> starting point definedPin24. Output signal (Pin3) saturated(V3V WTHinL mode).
8224A-04.TBL
STV8224A
ELECTRICAL CHARACTERISTICS (continued)
(Tamb =25°C, VCC= 9V,IF input= 10mVRMS sync levelat B/G, Peak-white levelatL,
Video modulation DSB,D= 90%at B/G,D= 95%atL, fPC= 38.9MHz,fSC= 33.4MHz,
Video BW= 5MHz, Sound carrier input: 5.5MHz, 10mVRMS,fM= 1kHz, Audio BW= 20kHz, Δf= ±50kHz,
Volume attenuation= 0dB, unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIDEO SWITCH
VDC12 DC Input Level No signal 1.6 1.9 2.2 V
VS12 Top Sync. Clamp Level 1.8 V
V11 DC Output Level No signal 1.7 2 2.3 V
VS11 Top Sync. Clamp Level 1.5 V
Crosstalk 55 dB
GEX Gain from Ext. Inputto Output 5.5 6 6.5 dB
Output Swing 4 5 V
I12 Input Current V12 =VDC12= 1.5V 1 5 μA
VBW Bandwidth VIN =1VPP 15 MHz
GIN Gain from Int. Inputto Output -0.5 0 +0.5 dB
MUTE (Pin9or Pin 13)
VTH9 Threshold Voltage Pin9 1.7 2 2.3 V DC Level when Mute Disabled High impedance controling circuit 2.8 V
VTH13 Threshold Voltage Pin13 0.2 0.3 0.4 V
CONTROL INPUT
Negative Modulation Video: External- Audio: External
Video: Internal- Audio: Internal
Positive Modulation Video: External- Audio: External
Video: Internal- Audio: External
Threshold3 Level linkedto VCC 6.4 6.8 7.2 V
Threshold2 Level linkedto VCC 4.1 4.5 4.9 V
Threshold1 Level linkedto VCC 1.8 2.2 2.6 V
8224A-05.TBL
STV8224A
8224A-05.EPS
Figure3: CVBS Output
8224A-06.EPS
Figure4: SwitchingInput Standard+ INT/EXT
2kΩ 2kΩ
Figure5: IFLC
Figure6: Audio High Pass Filter
8224A-03.EPS
Figure1: PIF PLL Filter
8224A-04.EPS
Figure2: AFC Output
INPUT/OUTPUT PIN CONFIGURATION
STV8224A

Partno	Mfg	Dc	Qty	Available	Descript
STV8224A	ST	N/a	80	avai	MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES