Datasheet
REV. 0–20–
AD1955
+
+
AD797
+12V
0.1F
0.1F
4.7F
4.7F
OP AMP BYPASS
DUPLICATE FOR EACH PART
–12V
COMP
OUT
NL–
NL+
AD797
U2-A
COMP
OUT
NL–
U3-A
NL+
AD797
G
–
+
XLR MALE
J1
MONO
DIRECT
OUT
6VRMS
NOTE REVERSE POLARITY
OF RIGHT CHANNEL OUTPUTS
VBIAS
IOUTL–
IOUTR–
IOUTR+
IOUTL+
C9
100pF
C8
OPEN
C7
OPEN
R2
1.00k
R3
1.00k
12V
R4
402
R5
1.00k
R6
100
C10
100pF
R7
100
C11
100pF
R8
1.00k
C12
390pF
R9
1.00k
R10
1.00k
R11
1.00k
R12
1.00k
C14
470pF
C13
470pF
–3dB at 100 kHz
SET CONTROL REGISTER 0, BITS 11:10
TO SELECT LEFT OR RIGHT CHANNEL
Figure 11. Mono Differential Output
COMP
OUT
NL–
NL+
AD797
U6-A
COMP
OUT
NL–
U7-A
NL+
AD797
OUT
NL–
NL+
AD797
COMP
U8-A
+
+
AD797
+12V
0.1F
0.1F
4.7F
4.7F
OP AMP BYPASS
DUPLICATE FOR EACH PART
–12V
VBIAS
IOUTL–
IOUTR–
IOUTR+
IOUTL+
C24
OPEN
C23
OPEN
C25
100pF
R26
402
NOTE REVERSE
POLARITY OF RIGHT
CHANNEL OUTPUTS
R24
1.00k
R25
1.00k
12V
R27
1.00k
R28
100
C26
100pF
R29
100
C27
100pF
R30
1.00k
R31
681
R32
681
R33
226
C28
5.6nF
C29
5.6nF
R36
226
R35
324
R34
324
C31
2.7nF
C30
2.7nF
R37
100
R38
332
J3
–3dB at 75 kHz
C32
3.9nF
R39
OPEN
MONO
FILTER
OUT
2VRMS
SET CONTROL REGISTER 0, BITS 11:10
TO SELECT LEFT OR RIGHT CHANNEL
Figure 12. Mono Single-Ended Output