DIY, audio, electronics-BalancedInput.pdf

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U3
U1
AGND
XLR
R1
100K
R3
1M
OPAMP
AGND
R4
1M
U4
1
2
3
4
5
6
7
NC
IN- A
IN+ A
V-
IN+ B
IN- B
NC
REF A
OUT A
SEN A
V+
SEN B
OUT B
REF B
14
13
12
11
10
9
8
AGND
L_XLR_OUT
+15
R_XLR_OUT
AGND
U6
OPAMP
U5
R5
1M
AGND
XLR
R2
100K
OPAMP
AGND
R6
1M
U7
-15
U2
INA2134
+15
C1
47uF FC
OPAMP
AGND
C2
47uF FC
-15
C4
100n
C3
100n
INA2134 Balanced Input
Krzysztof Marcinek
kafka85@o2.pl
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