U4488B Datasheet (TEMIC Semiconductors) - Quasi-Split Sound Circuit and AM Demodulator

U4488B, Quasi-Split Sound Circuit and AM Demodulator

The U4488B is an integrated bipolar circuit for full multistandard sound IF signal processing in TV/VTR and Multimedia applications.

It supplies AM signals as well as FM/NICAM sound IF signals and thus allows the design of a universal sound IF module for various applications.

The U4488B has the same

U4488B Features

* D 5-V supply voltage; low power consumption D Gain-controlled 3-stage wideband IF amplifier D Active carrier generation by FPLL principle (frequency-phase-locked-loop) for true quadrature demodulation D Complete alignment-free AM demodulator D Switchable amplitude detector for gain control, which o