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Part Name
Description
BA7797 View Datasheet(PDF) - ROHM Semiconductor
Part Name
Description
Manufacturer
BA7797
VCR standard audio signal processor
ROHM Semiconductor
BA7797 Datasheet PDF : 8 Pages
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2
3
4
5
6
7
8
Video ICs
•
Control mode table
(1) REC / EE control, PB / TU / LINE control
Control pins
REC / EE PB / TU / LINE
L
L
L
M
L
H
H
L
H
M
H
H
Mode
LINE
TUNER
PB
LINE REC
TU REC
inhibit
Function
PB HSW REC HSW LINE SW REC AMP
OFF
ON
LINE
OFF
OFF
ON
TUNER
OFF
OFF
ON
PB
OFF
ON
OFF
LINE
ON
ON
OFF
TUNER
ON
—
—
—
—
If REC / EE CTRL is set to "M", the REC pause state is possible (REC head switch: open, REC amplifier: off).
BA7797F
(2) Mute control
Control pins
MUTE
H
L
Mode
MUTE
MUTE
Function
LINE SW
OPEN
CLOSE
•
Application example
REC + B
1
BIAS
OSC
2
EQ CTRL
3
REC AMP
EQ
4
0dB
V
CC
5
6
REC / EE
CTRL
7
LINE OUT
8
RL
9
ALC LEVEL ADJ
6
+ 28dB
LINE
ALC
Fig.3
18
17
16
15
14
ATT
– 8dB
13
12
ATT
– 8dB
11
10
EQ CTRL
TUNER IN
PB / TU / LINE CTRL
LINE IN
MUTE CTRL
Units: R [
Ω
]
C [F]
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