BA7745 データシートの表示（PDF） - ROHM Semiconductor
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BA7745 Datasheet PDF : 8 Pages
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(2) OVER REC control
Control for OVER REC (current emphasis) is done using pin 14.
When in OVER REC mode, the gain setting is recording amplifier AGC level + 1.9dB.
Control pin
OVER REC
H
L
Mode
Function
REC AGE Level
OVER REC
60.0mAP-P
—
48.2mAP-P
BA7745FS
(3) REC MUTE control
Control for REC MUTE when recording is done using pin 13.
Control pin
REC MUTE
H
L
Mode
REC MUTE
—
Function
REC AMP
OFF
ON
(4) EP / SP control
EP / SP control during playback is done using pin 9. When EP is selected, the gain of the playback amplifier is
increased by 5dB over its normal setting.
Control pin
EP / SP
H
L
Mode
EP
SP
Function
PRE AMP gain
Typ. + 5dB
Typ.
6
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