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BU9262AFS Datasheet Karaoke/Surround Digital Echo

Manufacturer: ROHM

Overview: TECHNICAL NOTE Audio Accessory ICs Karaoke/Surround Digital Echo BU9253AS/FS, BU9262AFS.

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General Description

The Karaoke/Surround Digital Echo IC incorporates a digital delay circuit, an input/output mixing circuit, supporting Karaoke echo and surround system, all in a single chip.

BU9253AS/FS has functions required by Karaoke echo system, and BU9262AFS has various functions required for surround / echo system.

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Key Features

  • ＜BU9253AS/FS＞ 1) Digital delay time : 131ms (fCLK = 375kHz) 2) Built-in mixing circuit for adding original sound and echo sound 3) Echo mix ratio settable by DC voltage 4) Built-in amplifier circuit for structuring input/output secondary LPF 5) Microphone mute function (mute of mixing sound of original sound + echo sound) 6) Built-in CR oscillation circuit ＜BU9262AFS＞ 1) Digital delay time : 8-stage setting from 9.2ms to 192ms 2) Built-in input/output mixing circuit 3) Built-in feedback, delay.

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