Optical disc ICs
Pulse width controller for portable
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.
Portable CD players CD-ROM, and MD players
1) Amplifies the pulse width in accordance with the bat-
2) Gain switching is possible via the control pin.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions