SA572 Datasheet (ON Semiconductor) - Programmable Analog Compandor

SA572, Programmable Analog Compandor

Pin Symbol 1 TRACK TRIM A 2 RECOV.

CAP A 3 RECT.

IN A 4 ATTACK CAP A 5 DG OUT A 6 THD TRIM A 7 DG IN A 8 GND 9 DG IN B 10 THD TRIM B 11 DG OUT B 12 ATTACK CAP B 13 RECT.

IN B 14 RECOV.

CAP B 15 TRACK TRIM B 16 VCC Tracking Trim A Recovery Capacitor A Rectifier A In

Programmable Analog Compandor SA572 The SA572 is a dual-channel, high-performance gain control circuit in which either channel may be used for dynamic range compression or expansion.

Each channel has a full-wave rectifier to detect the average value of input signal, a linearized, temperaturecompensated variable gain cell (DG) and a dynamic time constant buffer.

The buffer permits independent control of dynamic attack and recovery time with minimum external components and improved low frequency g

SA572 Features

* Independent Control of Attack and Recovery Time

* Improved Low Frequency Gain Control Ripple

* Complementary Gain Compression and Expansion with External Op Amp

* Wide Dynamic Range

* Greater than 110 dB

* Temperature-Compensated Gain Control