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BA7746S Arkusz danych(PDF) 4 Page - Rohm

Numer części BA7746S
Szczegółowy opis  VCR Hi-Fi audio signal REC / PB amplifier
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Producent  ROHM [Rohm]
Strona internetowa  http://www.rohm.com
Logo ROHM - Rohm

BA7746S Arkusz danych(HTML) 4 Page - Rohm

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4
Video ICs
BA7746S / BA7746FS
7VCC
8—
9—
10
REC: 2.9V
PB: 2.9V
11
REC: 1.4V
PB: 0.5V
12
Pin No.
Pin name, function and remarks
Voltage
Circuit diagram
〈VCC
Power supply for anything other than REC + B.
〈REC MUTE CTRL〉
REC MUTE control.
In REC MUTE mode, the recording amplifier
output is stopped.
REC: L, REC MUTE: H.
Do not leave open circuit.
〈OVER REC CTRL〉
OVER REC control.
In OVER REC mode, the recording current is set
to + 2dB (Typ.).
Do not leave open circuit.
〈REC MIX IN〉
Recording amplifier input.
〈REC NF〉
Recording amplifier feedback.
Connect the GND of a decoupling capacitor to
main GND (pin 16) to improve common-mode
distortion.
〈REC / PB CTRL〉
REC / PB control pin.
Use of an RC circuit time constant to slow the rise
of the control signal reduces noise spikes during
switching.
Do not leave open circuit.
MUTE
REC
30k
OVER NORMAL
30k
10k
10k
10.2k
240
1.04k
30k


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