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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.
FApplications Portable CD players CD-ROM, and MD players
FFeatures 1) Amplifies the pulse width in accordance with the battery voltage.
2) Gain switching is possible via the control pin.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions
649
Optical disc ICs
FBlock deagram
BA3890F
FElectrical characteristics (Unless otherwise noted, Ta = 25_C and VCC = 3.