3D
PGA
+
+
+
+
–
+
–
+
+
From
Left-
Channel
Interface
To
Modulator
Digital
Volume
Ctrl
Biquad
B
L
To
Modulator
´
´
Biquad
C
L
Biquad
A
L
Biquad
A
R
Biquad
B
R
Biquad
C
R
From
Right-
Channel
Interface
Interp.
Filter A
Interp.
Filter A
Digital
Volume
Ctrl
Interp.
Filter C
BiQuad
D
BiQuad
C
BiQuad
B
BiQuad
A
IIR
to
modulator
Digital
Volume
Ctrl
from
Interface
´
Interp.
Filter C
DRC
HPF
IIR
to
Modulator
Digital
Volume
Ctrl
BiQuad
D
BiQuad
C
BiQuad
B
BiQuad
A
from
Interface
´
DAC
2.4.1.7
4 Biquads, 1
st
order IIR, DRC, Interpolation Filter B
Figure 2-26. Signal Chain for PRB_P18 and PRB_P21
2.4.1.8
4 Biquads, 1st order IIR, Interpolation Filter C
Figure 2-27. Signal Chain for PRB_P19 and PRB_P22
2.4.1.9
2 Biquads, 3D, Interpolation Filter A
Figure 2-28. Signal Chain for PRB_P23
38
TLV320DAC3203 Application
SLAU434 – May 2012
Copyright © 2012, Texas Instruments Incorporated