SA577 Philips, SA577 Datasheet - Page 4

• Manufacturer Part Number: SA577
• Description: Unity gain level programmable power compandor
• Manufacturer: Philips

Philips Semiconductors
BLOCK DIAGRAM and TEST AND APPLICATION CIRCUIT
1997 Nov 07
C2
Unity gain level programmable low power compandor
*R1, R2 and R3 are 1% resistors.
+
EXP
EXP
CAP
V
2.2 F
IN
EXP
REF
OUT
10 F
C1
C4
10 F
+
+
10 F
RECT
C3
R2*
+
IN
R1*
GND
1
2
3
4
5
6
7
RECTIFIER
10k
Figure 2. Block Diagram and Test and Application Circuit
GAINCELL
EXPANDOR
I
REF
G
10k
BANDGAP
V
GND
REF
V
5k
CC
10k
4
COMPRESSOR
30k
8.6k
30k
10k
GAINCELL
G
RECTIFIER
10k
10k
14
13
12
10
11
9
8
10 F
COMP
COMP
+
10 F
C7
+
CAP1
R3*
CAP2
RECT
GCELL
C5
Product specification
+
+
10 F
COMP
+
C9
V
IN
C8
CC
C6
IN
SA577
2.2 F
2.2 F
IN
COMP
SR00717
OUT