BA1442A Description
Audio ICs AM radio / FM IF stereo system IC BA1442A The BA1442A is an AM radio and FM IF stereo system IC developed for radio cassette players. The FM circuit is prised of a differential IF amplifier, a double-balance type quadrature detector, and a PLL-type stereo MPX circuit. The AM circuit is prised of a local oscillator, a double-balanced mixer, an IF amplifier, a detector, and an AGC circuit.