DESCRIPTION

TDA4445A:

Sound IF amplifier, with FM processing for quasi parallel sound system.

TDA4445B :

Sound IF amplifier, with FM processing and AM demodulator, for multi-standard sound TV appli

ances.

TDA4445B additionnal :

Bistandard applications (B/G and L) No adjustmentof the AM demodulator Low AM distortion

.QUADRATURE INTERCARRIER DEMODULATOR

.VERY HIGH INPUT SENSITIVITY

.GOOD SIGNAL TO NOISE RATIO

.FAST AVERAGING AGC

.IF AMPLIFIER CAN BE SWITCHED OFF FOR VTR MODE

.GOOD AM SUPPRESSION

.OUTPUT SIGNAL STABILIZED AGAINST SUPPLY VOLTAGE VARIATIONS

.VERY FEW EXTERNAL COMPONENTS