SA575 Datasheet, PDF (2/16 Pages) NXP Semiconductors – Low voltage compandor

V_REF
SA575
V_OUT
C₃
+
10mF
+ _CRECT
2.2mF
GND
V_IN
C₆
10mF ⁺
+
10mF
GND
GND
V_CC +5V
0.1mF
1+
575
20
V_CC
2−
OP AMP
+ ₁₉
3
− 18
OP AMP
C₁₅
R₁₃
10kW
4
3.8kW
5
S
6
7
10kW
17
3.8kW
C₁₁
16
+
4.7mF
C_RECT
15 ₊
2.2mF
S
14
8
V_REF
9
DG
10kW
13
10kW
12
R₇
30kW
10
GND
DG
11
10kW
10mF
+
C₁₄
GND
V_IN
V_REF
C₁₀
+
10mF
V_OUT
R₈
30kW
+ _1mF
C₈
GND
Figure 1. Block Diagram and Test Circuit
PIN FUNCTION DESCRIPTION
Pin
Symbol
1
+V_IN1
2
−V_IN1
3
V_OUT
4
RECT. IN1
5
C_RECT1
6
SUM OUT1
7
COMP. IN1
8
V_REF
9
GAIN CELL IN1
10
GND
11
GAIN CELL IN2
12
SUM NODE 2
13
COMP. IN2
14
SUM OUT2
15
C_RECT2
16
RECT. IN2
17
V_OUT2
18
−V_IN2
19
+V_IN2
20
V_CC
Description
Non−Inverted Input 1
Inverted Input 1
Output
Rectifier 1 Input
External Capacitor Pinout for Rectifier 1
Summation Output 1
Compensator Pin
Voltage Reference
Variable Gain Cell Input 1
Ground
Variable Gain Cell Input 2
Summation Node 2
Compensator Pin
Summation Output 2
External Capacitor Pinout for Rectifier 2
Rectifier 2 Input
Output 2
Inverted Input 2
Non−Inverted Input 2
Positive Power Supply
http://onsemi.com
2