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SA571 - Compandor

General Description

The SA571 is a versatile low cost dual gain control circuit in which either channel may be used as a dynamic range compressor or expandor.

Key Features

  • Complete compressor and expandor in one IChip.
  • Temperature compensated.
  • Greater than 110dB dynamic range.
  • Operates down to 6VDC.
  • System levels adjustable with external components.
  • Distortion may be trimmed out.
  • Dynamic noise reduction systems.
  • Voltage-controlled amplifier 10 OUTPUT 2 9 THD TRIM 2 TOP VIEW NOTE: 1. SOL - Released in Large SO Package Only. SR00675 Figure 1. Pin Configuration.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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INTEGRATED CIRCUITS SA571 Compandor Product specification IC17 Data Handbook 1997 Aug 14 Philips Semiconductors Philips Semiconductors Product specification Compandor SA571 DESCRIPTION The SA571 is a versatile low cost dual gain control circuit in which either channel may be used as a dynamic range compressor or expandor. Each channel has a full-wave rectifier to detect the average value of the signal, a linerarized temperature-compensated variable gain cell, and an operational amplifier. The SA571 is well suited for use in cellular radio and radio communications systems, modems, telephone, and satellite broadcast/receive audio systems. PIN CONFIGURATION D, and N Packages1 RECT CAP 1 RECT IN 1 AG CELL IN 1 GND INV. IN 1 RES.