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UPC1857A - SOUND CONTROL IC WITH SURROUND AND I2C BUS

Datasheet Summary

Description

The µPC1857A is a sound control IC with I2C bus.

It has functions to control volume, balance, and tone, and a phase shift matrix surround function.

The surround function achieves wide sound expansion using only two front speakers.

Features

  • Volume control function.
  • Balance control function : Attenuation adjustable from 0 to.
  • 80 dB in 64 steps : The difference in attenuation adjustable from 0 to.
  • 80 dB in 64 steps.
  • Tone (bass, treble) control function : Adjustable in 32 steps from +10 to.
  • 10 dB.
  • Surround function (gain adjustable) : Three modes (movie, music, and simulated).
  • Mute function.
  • Mixing function.
  • Output selection function (for two mono.

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Datasheet preview – UPC1857A

Datasheet Details

Part number UPC1857A
Manufacturer NEC
File Size 343.84 KB
Description SOUND CONTROL IC WITH SURROUND AND I2C BUS
Datasheet download datasheet UPC1857A Datasheet
Additional preview pages of the UPC1857A datasheet.

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Full PDF Text Transcription

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DATA SHEET BIPOLAR ANALOG INTEGRATED CIRCUIT µPC1857A 2 SOUND CONTROL IC WITH SURROUND AND I C BUS DESCRIPTION The µPC1857A is a sound control IC with I2C bus. It has functions to control volume, balance, and tone, and a phase shift matrix surround function. The surround function achieves wide sound expansion using only two front speakers. Three modes can be selected: movie mode that increases the presence of sound with stereo sound input, music mode emphasizing vocal music, and simulated mode that gives expansion and left and right sound depth with monaural sound input. The µPC1857A can perform all control (mode switching, volume control and so on) using I2C.
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