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BU9253 - KARAOKE echo IC

Description

Pin No.

Pin No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Pin name GND ECHO VR N.C.

Features

  • 1) Echo mixing ratio is adjustable with a DC voltage. 2) A second order LPF can be configured with the internal amplifier and an attached capacitor and resistor. 3) Delay time of 131ms. (when fCLK = 357kHz) 4) Internal mute function. 5) Single power supply (5V).
  • Block diagram BU9253FS / BU9255FS 16 15 14 13 12 11 10 9 OSC VCC A/D.

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Datasheet preview – BU9253

Datasheet Details

Part number BU9253
Manufacturer ROHM
File Size 72.86 KB
Description KARAOKE echo IC
Datasheet download datasheet BU9253 Datasheet
Additional preview pages of the BU9253 datasheet.

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Full PDF Text Transcription

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Multimedia ICs KARAOKE echo IC BU9253AS / BU9253FS / BU9255FS The BU9253AS, BU9253FS and BU9255FS are single-chip ICs that contain all the components needed to configure a KARAOKE echo system: an A / D and D / A converter, SRAM, LPF, and mixer for mixing source signals. With these ICs, an echo function can be configured easily and with minimum external components. Applications • KARAOKE functions for portable stereo sets, mini component stereo sets, video CDs and DVDs, etc. Features • 1) Echo mixing ratio is adjustable with a DC voltage. 2) A second order LPF can be configured with the internal amplifier and an attached capacitor and resistor. 3) Delay time of 131ms. (when fCLK = 357kHz) 4) Internal mute function. 5) Single power supply (5V).
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