Datasheet4U Logo Datasheet4U.com

UPC1857A - SOUND CONTROL IC WITH SURROUND AND I2C BUS

General 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.

Key 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.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
UPC1820 Color TV/VTR PLL IF Signal Processing IC NEC Electronics
UPC1823A PLL IF Signal Processor NEC Electronics
UPC1008C Phase Frequexcy Detector ETC
UPC1031H UPC1031H ETC
UPC1032H Dual Low Noise Preamplifier Silicon Bipolar Monolithic Intergated Circuit NEC Electronics

Other Datasheets by NEC (now Renesas Electronics)

Part Number Description
UPC1851B I2C BUS-COMPATIBLE US MTS PROCESSING LSI
UPC1852 Bipolar Analog Integrated Circuit
UPC1853 MATRIX SURROUND IC WITH I2C BUS
UPC1854A I2C BUS-COMPATIBLE US MTS PROCESSING LSI
UPC1830 FILTER-CONTAINING VIDEO CHROMA/ SYNCHRONIZING SIGNAL PROCESSING LSI COMPATIBLE WITH NTSC/PAL SYSTEM

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.

View original datasheet text
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.