U2 C63 C64 +5V AMS1117-3.3 +3.3V 100n þÿ2200µ 50V 3 VI VO 2 2 +3.3V +5V AMP1 C2 D C6 1 3,3V +9V N TDA7377 G J4 A 3 GND 100n 1 þÿ10µ S VCC1 k 1 k C30 C32 13 J19 GND S17 0 R19 0 VCC2 1 1 1 þÿ22µ 100n 4 IN1 OUT1 1 2 U3 2 3 SoundP Out L 5 2 Q6 BSS138 IN2 OUT2 VCC L7809 +9V 12 IN3 OUT3 15 SP_L 1 3 2 +3.3V +5V SoundP Out R 11 14 J20 IN OUT U5 GND IN4 OUT4 C C3 D C7 1 9V 1 C G J5 L 2 TDA7439DS 10 2 S Eigene:TDA7439DS DIAGNOSTIC 330n 2 100n k 1 k 6 SVR S18 0 R20 0 V BO-R 13 100n C41 7 SP_R GND 1 1 22 12 100n C45 St-By 10k STANDBY SDA BI-R 2 PWGND 8 2 3 21 SCL MO-R 11 22n C35 R L 4 9
in
„TDA7439DS Störgeräusche und ein kochender TDA7377“
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Mikrocontroller und Digitale Elektronik
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Bild
