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Application Examples for Analog Input and Output
a) Example of V -biased buffering for 2-Vrms input with overvoltage protection.
COM
Input
+V
–V
–V
V X
IN
V X+
OUT
V X+
OUT
V
COM
V X–
OUT
V
COM
R1
C1
R2
R3
C3
C2
b) Example of capless differential to single-ended converter with LPF and gain for 2-Vrms standard output.
+V
Output
R1
R2
R3
R4
R5
R7
R6
C1
C3
C2
c) Example of V -biased single-supply single-ended application with LPF and MUTE control for 1-Vrms output.
COM
+V
Mute
ZEROx
Mute
Output
OR
R1
R2
R3
C1
C2
C3
C4
Example of C, Rvalueswith
gain(G)andcornerfrequency
R1: 20k
R2: 10 k
R3: 1k
C1: 10 F
C2: 330pF
C3: 0.1 F
G:0.5
f : 48 kHz
W
W
W
m
m
C
(f )
C
Example of C, Rvalues
R1,R2: 10k
R3,R4: 7.5 k
R5,R6: 820
R7:100
C1: 1500pF
C2,C3: 470pF
G:0.75(DifferentialtoS/E)
f : 54 kHz
W
W
W
W
C
with
gain(G)andcornerfrequency
(f )
C
Example of C, Rvalues
R1: 10k
R2: 7.5 k
R3: 750
C1: 3300pF
C2: 470pF
C3: 0.1 F
C4:10 F
G:0.75
f : 54 kHz
W
W
W
m
m
C
with
gain(G)andcornerfrequency
(f )
C
S0258-01
PCM3060
SLAS533B – MARCH 2007 – REVISED MARCH 2008
Figure 34. Application Examples for Analog Input and Output
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