BA3890 Просмотр технического описания (PDF) - ROHM Semiconductor

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BA3890

Pulse width controller for portable CD players

ROHM Semiconductor 

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 bat-

tery voltage.

2) Gain switching is possible via the control pin.

FAbsolute maximum ratings (Ta = 25_C)

FRecommended operating conditions

649

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