PCM3060_15 Datasheet, PDF (40/49 Pages) Texas Instruments – 96/192-kHz ASYNCHRONOUS STEREO AUDIO CODEC

PCM3060
SLAS533B – MARCH 2007 – REVISED MARCH 2008
Application Examples for Analog Input and Output
a) Example of V_COM-biased buffering for 2-Vrms input with overvoltage protection.
R2
C2
C1 _R1
Input
R3
C3
+V
V_INX
–V
V_COM
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Example of C, R values with
gain (G) and corner frequency (f_C)
R1: 20 kW
R2: 10 kW
R3: 1 kW
C1: 10 mF
C2: 330 pF
C3: 0.1 mF
G: 0.5
f_C: 48 kHz
b) Example of capless differential to single-ended converter with LPF and gain for 2-Vrms standard output.
R3
C2
Example of C, R values with
gain (G) and corner frequency (f_C)
V_OUTX+
V_OUTX–
R1
C1
R2
R4
R5
R6
C3
+V
R1, R2: 10 kW
R7
R3, R4: 7.5 kW
Output
R5, R6: 820 W
R7: 100 W
C1: 1500 pF
–V
C2, C3: 470 pF
G: 0.75 (Differential to S/E)
f_C: 54 kHz
c) Example of V_COM-biased single-supply single-ended application with LPF and MUTE control for 1-Vrms output.
R2
V_OUTX+
V_COM
ZEROx
Mute
R1
R3
C1
C3
C2
Example of C, R values with
gain (G) and corner frequency (f_C)
+V
C4
R1: 10 kW
Mute
Output
R2: 7.5 kW
R3: 750 W
C1: 3300 pF
C2: 470 pF
C3: 0.1 mF
C4: 10 mF
G: 0.75
f_C: 54 kHz
OR
Figure 34. Application Examples for Analog Input and Output
S0258-01
40
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