BA7796FS Ver la hoja de datos (PDF) - ROHM Semiconductor
Número de pieza
componentes Descripción
Fabricante
BA7796FS Datasheet PDF : 10 Pages
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Video ICs
•Application example
BIAS
OSC
REC + B
EQ CTRL
VCC
REC / EE
CTRL
LINE OUT
BA7796FS
1
2
3
4
REC AMP
5
EQ
0dB
6
7
8
9
10
11
12
ALC
+ 28dB
LINE
Fig. 3
24
23
22
21
20
19
ATT
– 8dB
18
17
ATT
– 8dB
16
15
ATT
– 8dB
14
13
TUNER IN
INPUT SW CTRL
LINE IN1
PB / EE CTRL
LINE IN2
MUTE CTRL
Units: R [Ω]
C [F]
•Operation notes
(1) Mute signal
Apply the mute signal shown below at power on and
off.
If the muting time is short, a “pop” sound will be audi-
ble, particularly when the power is switched on.
Vcc
(H)
(H)
MUTE CTRL
2 sec. Min.
LINE OUT
(2) Recording control
Do not switch the PB and REC modes on together.
This will cause erroneous operation.
(3) Line output
The line output can drive a load resistance of up to
2kΩ.
Some types of load can result in local oscillation (eg.
large capacitive loads that draw large current), so cau-
tion is required. In particular, when there is a possibility
that the line output will be connected to a shielded
cable, or line cable, connect a resistor of about 1kΩ in
series with the output so that the capacitive load is not
directly coupled to the IC output terminal.
The mute signal must also be applied when switching
PB, LINE1,LINE2 and TUNER.
8
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