SA572

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 10dB
Temperature-compensated gain control
Low distortion gain cell
Low noise!-6V typical
Wide supply voltage range-6V-22V
System level adjustable with external components

The NE572 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,temperature-compensated variable gain cell (G) and a dynamic time constant buffer. The buffer NE572 permits independent control of dynamic attack and recovery time with minimum external components and improved low frequency gain control ripple distortion over previous compandors.

The NE572 is intended for noise reduction in high-performance audio systems. It can also be used in a wide range of communication systems and video recording applications.