Application of D7640 frequency modulation/amplitude modulation intermediate frequency amplifier circuit

D7640 is an integrated circuit used in radio frequency modulation /amplitude modulation. The AM amplitude modulation part of the circuit includes AM local oscillator, mixing, mid-amplifier, detection, AGC amplification and tuning indication drive circuit, etc. The FM part mainly includes FM mid-amplifier, detection and tuning. Indication design in the IC

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Application of D7640 FM/AM IF Amplifier Circuit

The voltage of each foot to ground when the D7640 has no signal

D7640 wiring diagram

D7640 wiring diagram

D7640 wiring diagram

D7640 wiring diagram

D7640 wiring diagram

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12v wall charger wall mount adapter

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12v wall charger wall mount adapter





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