UPC1857

更新时间： 2024-09-22 22:41:43

品牌	Logo	应用领域
日电电子 - NEC		/
页数	文件大小	规格书
44页	339K
描述
SOUND CONTROL IC WITH SURROUND AND I2C BUS

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UPC1857 数据手册

DATA SHEET

BIPOLAR ANALOG INTEGRATED CIRCUIT

µPC1857A

SOUND CONTROL IC WITH SURROUND AND I²C 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.

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 channels input)

All parameters can be controlled via I²C bus.

APPLICATIONS

TV, PC monitor

•

ORDERING INFORMATION

Part Number

Package

µPC1857ACT

30-pin plastic shrink DIP (400 mil)

The information in this document is subject to change without notice.

Document No. S12453EJ1V1DS00 (1st edition)

Date Published March 1998 N CP(K)

Printed in Japan

1997

12 3 4 5 6 7...44

中文翻译

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