BA7796FS Просмотр технического описания (PDF) - ROHM Semiconductor
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BA7796FS Datasheet PDF : 10 Pages
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Video ICs
BA7796FS
•Pin descriptions
Pin No.
Pin name
Function
Pin voltage
I / O circuit
1
PB IN
Playback amplifier input / playback head switch
2.0V
REC: 120kΩ
REC: 11Ω
2
HEAD EQ SW Head resonance capacitor switch
0.0V
220kΩ / 20Ω (ON)
3
REC HEAD SW High-withstanding voltage recording head switch
0.0V
REC: 11Ω (ON)
REC: OPEN
4
REC OUT
Recording amplifier output
5.7V
EF (P - P)
5
REC L 2
Recording EQ switch
5.7V
19Ω (ON) / OPEN
6
REC L 1
Recording EQ pin
5.7V
B (NPN)
7
EQ CTRL
EQ control
—
See input / output circuit
8
VCC
VCC
9
RIPPLE FILTER Ripple filter
12.0V
12.0V
—
10kΩ (VCC)
10
REC / EE CTRL REC / EE control
—
See input / output circuit
11
LINE OUT
Line amplifier output
5.7V
EF (P - P)
12
GND
GND
0.0V
—
13
MUTE CTRL Mute control
—
See input / output circuit
14
LINE IN2
Line input 2
5.6V
120kΩ
15
PB / EE CTRL PB / EE control
—
See input / output circuit
16
LINE IN1
Line input 1
5.6V
120kΩ
17
INPUT SW CTRL Input switch control
—
See input / output circuit
18
TUNER IN
Tuner input
5.6V
120kΩ
19
ALC FILTER
For setting the time constant for the ALC filter
(attack and recovery times)
PB: 0.0V
PB: not fixed
EF (NPN) ~ 100Ω
20
PB LINE IN Line input for playback
5.6V
120kΩ
21
PB OUT
Playback amplifier output
2.0V
EF (P - P)
22
PB EQ SW Playback equalizer switch
2.0V
35Ω (ON) / OPEN
23
PB NFB
Playback amplifier feedback
2.0V
B (NPN)
24
HEAD GND GND for playback amplifier and head switch
0.0V
—
∗ EF: emitter follower, P-P: push pull, B: base, and C: collector.
All measurements made using the measurement circuit (Fig. 1) with VCC = 12V and quiescent circuit conditions.
All numerical values are standardized values.
3
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