Philips Semiconductors RF Communications Products Product specification Programmable analog compandor NE/SA572 DESCRIPTION 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 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-pe...

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