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BU9255FS Datasheet Karaoke Echo Ic

Manufacturer: ROHM

Overview: 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.

Datasheet Details

Part number BU9255FS
Manufacturer ROHM
File Size 72.86 KB
Description KARAOKE echo IC
Datasheet BU9255FS_Rohm.pdf

General Description

s • BU9253FS / BU9255FS Pin No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 BU9253AS / BU9253FS / BU9255FS BU9253AS Function 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.

Key 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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BU9255FS Distributor