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LC7538JM - CMOS

General Description

Pin No.

These pins function as output pins for the fader.

front is performed separately for each.

Attenuation capacity is unified for both left and right.

Key Features

  • Volume : 81 positions ranging from 0 dB to -79 dB (in 1 dB increments) plus -∞. Separate left and right control provides excellent balance function.
  • Loudness : Loudness operation provided by externally attached CR to activate tap at the -20 dB position of the volume ladder resistor.
  • Fader : Fader function traversing 16 positions with rear or front attenuated output only (these 16 positions consist of 2 dB step intervals ranging from 0 dB to -20 dB, 5 dB step i.

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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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Ordering number : EN4799B CMOS IC LC7538JM Electronic Volume Control System for Car Audio Overview The LC7538JM is a fully equipped electronic volume IC which permits significant reductions in externally connected components while providing ample volume, balance, loudness, fader, bass and treble control functions. • On-chip op amplifier for caching applications reduces external components. • Reduced switching noise with silicon gate CMOS processor. • All controls performed using serial data input (CCB). Features • Volume : 81 positions ranging from 0 dB to -79 dB (in 1 dB increments) plus -∞. Separate left and right control provides excellent balance function.