Datasheet

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_
+
4.7 kΩ
4.7 kΩ
OPA2134 1/2
+
10 µF
R
1
= 3.3 kΩ
_
+
C
(1)
R
5
= 47 Ω
R
3
= 1 kΩ
V
IN
−
_
+
R
4
= 1 kΩ
R
6
= 47 Ω
0.1 µF
+
R
2
= 3.3 kΩ
OPA2134 1/2
V
IN
+
V
COM
0.01 µF
PCM1804
Analog In
OPA2134 1/2
S0059-01
C
(1)
10 µF
_
+
_
+
V
COM
V
REF
V
IN
+
V
IN
−
BGR
∆Σ Modulator
S0060-01
PCM1804
SLES022C – DECEMBER 2001 – REVISED OCTOBER 2007
(1) A capacitor value of 1800 pF is recommended, unless an input signal greater than – 6 dBFS at 100 kHz or higher is
applied in the DSD mode. In that case, 3300 pF is recommended.
Figure 44. Application Circuit for Single-Ended Input Circuit (PCM)
Figure 45. Equivalent Circuit of Internal Reference (V
COM
, V
REF
)
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Product Folder Link(s): PCM1804