ROHM BA5970FP Datasheet

Optical disc ICs

4-channel BTL driver for CD players
and CD-ROMs

BA5970FP

The BA5970FP is a 4-channel BTL driver developed to drive CD player motors and actuators. The driver input stage
contains an operational amplifier, supports a variety of input formats, and allows simple configuration of a filter.

FApplications
CD players, CD-ROM

FFeatures

1) 4-channel BTL driver.

2) Wide dynamic range (4V when PREV

CC = 5V, and RL = 8Ω).

POWV

3) Internal thermal shutdown circuit.

4) Driver gain is adjustable with externally connected
resistor.

CC = 8V,

5) Independent power supplies PREV
channels 1 and 2), and POWV

4), and low voltage operation for a highly efficient
drive.

6) Independent mute pins for channels 1 and 2 and
channels 3 and 4.

7) Perfect for compact applications with the use of the
HSOP28-pin power package.

CC, POWVCC (for

CC (for channels 3 and

FAbsolute maximum ratings (Ta = 25_C)

FRecommended operating conditions (Ta = 25_C)

653

Optical disc ICs BA5970FP

Block diagram

Pin descriptions

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Optical disc ICs BA5970FP

Input / output circuits

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