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Электронный компонент: BA5921FP

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269
Optical disc ICs
4-channel BTL driver for CD player
and CD-ROM drives
BA5921FP
The BA5921FP is an IC with an internal 4-channel BTL driver for CD players and CD-ROM driver actuators and motors,
as well as an internal standard operational amplifier. In addition, the 28-pin HSOP package allows for application minia-
turization.
F
Applications
CD players, CD-ROM drives
F
Features
1) 4-channel BTL driver.
2) HSOP 28-pin power package allows for application
miniaturization.
3) Wide dynamic range. (typically 3.6V when V
CC
= 5V
and R
L
= 8
)
4) Internal thermal shutdown circuit.
5) Gain is adjustable with an attached resistor.
6) Internal standard operational amplifier.
7) Output current is mutable with an external mute pin.
F
Absolute maximum ratings (Ta = 25
_
C)
F
Recommended operating conditions (Ta = 25
_
C)
270
Optical disc ICs
BA5921FP
F
Block diagram
F
Pin descriptions
271
Optical disc ICs
BA5921FP
F
Pin equivalent circuit diagrams
272
Optical disc ICs
BA5921FP
F
Electrical characteristics (unless otherwise noted, Ta = 25
_
C, V
CC
= 5V, BIAS = 2.5V, R
L
= 8
)
273
Optical disc ICs
BA5921FP
F
Measurement circuit