BA7787FS データシートの表示（PDF） - ROHM Semiconductor
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BA7787FS Datasheet PDF : 24 Pages
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Multimedia ICs
•Block diagram
BA7786FP-Y
25
24
23
22
21
20
HP VCC
VR
VR
1
2
3
4
5
6
BA7786FP-Y / BA7787FS
19
18
17
16
15
14
SP VCC
7
8
9
10
11
12
13
•Pin descriptions
BA7786FP-Y
Pin No.
Pin name
Function
Voltage
Type
1
EVR CTRL
EVR control pin
—
B (NPN)
2
LINE IN L
Line Lch input
2.5
B (PNP)
3
MUTE CTRL
Headphone mute control pin
5.0
100kΩ PULL UP
4
LINE IN R
Line Rch input
2.5
B (PNP)
5
BIAS
Bias
2.5
23.5kΩ
6
SYSTEM BEEP IN
SYSTEM BEEP input
2.5
B (NPN)
7
BEEP LEVEL
SYSTEM BEEP IN output level setting
4.2
C (PNP) ~ 3kΩ
8
LCH OUT
LINE IN L + SYSTEM BEEP IN output
—
C (PNP)
9
PM BEEP IN
PM beep input
2.5
B (NPN)
10
SP OUT1 L
BTL speaker Lch output (forward)
2.5
EF (NPN)
11
SP OUT2 L
BTL speaker Lch output (reverse)
2.5
EF (NPN)
12
HP SUSPEND
Headphone SUSPEND control
5.0
100kΩ PULL UP
13
SP SUSPEND
Speaker SUSPEND control
5.0
100kΩ PULL UP
14
SP GND
Speaker ground
0.0
—
15
MONO / ST
Speaker amplifier Lch ON / OFF control
5.0
100kΩ PULL UP
16
SP OUT2 R
BTL speaker Rch output (reverse)
2.5
EF (NPN)
17
SP OUT1 R
BTL speaker Rch output (forward)
2.5
EF (NPN)
18
LINE MIX ON / OFF
SP IN L / R input ON / OFF control
5.0
100kΩ PULL UP
19
SP VCC
Speaker Vcc
5.0
—
20
SP IN R
Speaker Rch input
2.5
B (NPN)
21
SP IN L
Speaker Lch input
2.5
B (NPN)
22
HP GND
Headphone ground
0.0
—
23
HP OUT R
Headphone Rch output
2.5
EF (NPN)
24
HP OUT L
Headphone Lch output
2.5
EF (NPN)
25
HP VCC
Headphone Vcc
5.0
—
Note) The pin formats are as follows. EF: emitter follower; B: base; C: collector; ~ : series connection.
The above values are all based on the settings (HP VCC = SP VCC = + 5.0V) in Fig. 1, entitled "Measurement circuit diagram,"
and do not guarantee standards.
2
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