649
Optical disc ICs
Pulse width controller for portable
CD players
BA3890F
The BA3890F is an interface IC that provides gain for the PWM signal pulses used in digital servo systems, and allows
gain adjustment to eliminate the dependence on battery voltage.
F
Applications
Portable CD players CD-ROM, and MD players
F
Features
1) Amplifies the pulse width in accordance with the bat-
tery voltage.
2) Gain switching is possible via the control pin.
F
Absolute maximum ratings (Ta = 25
_
C)
F
Recommended operating conditions
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