BA7725 ROHM Electronics, BA7725 Datasheet - Page 2

• Manufacturer Part Number: BA7725
• Description: Analog Compander for Karaoke echo Systems
• Manufacturer: ROHM Electronics

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2
Multimedia ICs
Block diagram
BA7725S
LOOP GAIN CTRL
ECHO LEV CTRL
EXP BF OUT
EXP DET CT
DLY BF OUT
EXP BF IN
LINE OUT
EXP DET
LINE IN
GND
N.C.
10
11
1
2
3
4
5
6
7
8
9
+
+
BF
+
22
21
20
19
18
17
16
15
14
13
12
MIC AMP IN
MIC AMP OUT
N.C.
V
RIPPLE FILTER
CMP DET
CMP DET CT
CMP OUT
CMP BF IN
CMP BF OUT
DLY BF IN
CC
BA7725FS
LOOP GAIN CTRL
ECHO LEV CTRL
EXP BF OUT
EXP DET CT
DLY BF OUT
EXP BF IN
LINE OUT
EXP DET
LINE IN
GND
10
1
2
3
4
5
6
7
8
9
+
+
BA7725S / BA7725FS
BF
+
19
11
20
18
17
16
15
14
13
12
MIC AMP IN
MIC AMP OUT
V
RIPPLE FILTER
CMP DET
CMP DET CT
CMP OUT
CMP BF IN
CMP BF OUT
DLY BF IN
CC