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TDA8373 OM8373 No signal (V) plus signal (V) is added for each pin function and related parameter pin function. The standby voltage is 1 FM/ TV switching (not used) 4.9 5.0 5.0 2 SCL output pin 2.9 2.8 3.4 3 SDA output pin 2.5 2.7 3.2 4 VT tuning output 3.5-0v changed to 0.6 0.6 3.6 5 function multiplexing pin keying 1/ indicating signal output pin 0. 1 . 1.3.48 6 keying pin 2 3.6 3.6654444 14 +8V power supply (TV processing) 8.0 7.9 0.29 15 TV digital signal processing power supply filter 4.9 4.9 0 16 line PLL2 filter 3.23.20/kloc. 0 0 19 band gap decoupling 4.0-3.9 3.9 0 20 automatic volume adjustment filtering /E/W drive output/sound demodulation and notch filtering 000.0221field reverse drive output 2.4 2.3 0 22 field forward drive output 2.4 2.4 0 23 intermediate frequency input1.8/kloc-. .8024 IF input 1.8 1.8 0 sawtooth wave forming capacitor 3.83.801.27 RF-AGC output 4.0 4.0 0.88 28 Audio output De-AV output/SIF input 1/ De-emphasis capacitor 3./kloc. .029 audio band gap filtering /SIF input 2.3 2.3 2.3 0.47 30 TV processing 0 0 3 1 PLL bandwidth filtering/sound filtering AGC Sandcastle pulse output 0.3 untested 0.35 external audio output /QSS output 3.6 3.6 0.46 36 EHT/ overvoltage detection input 1.7/ Kloc-0/.7 0.07 37 IF -PLL loop filtering 2.7 2.4 0 38 IF video output/switch AV output 3.7 2.8 0 39 TV processing power supply 7.9 7.9 0.29 40 TV video input 4. 1.7 0.0655 Y input pin 3.3 3 0.03 43C input 1.5/ Kloc-0/.5 0.05 44 audio output /AM audio output (controlled by volume) 3.2 3.2 0 45 RGB2/YUV insertion switch signal1.8/Kloc-0.94 46 R2 input /R-Y input/PR input 2.5 2.5 0 47 G2 input /Y input 2.52 Y-field protection input 6. 1 6. 1 5 1 R output 1.7 2.4 0 52 G output 1.6 2. 1 0 53 B output 2.6 2.2 0 54 TELE processing power supply TV processing digital power supply 3. 56 digital circuit power supply 3.6 3.61.57 clock oscillator circuit 000.0 1.58 connection 12MHZ crystal 1.5 1.6859 connection 12MHZ crystal/kl. .7460 reset pin grounded 000 1 digital processing power supply 3.6 3.6 0 62 mute control 0.3.60.0463 control line excitation switch signal (standby control) 0.02.6964 remote control input 4.6 4.6 4.6.