Interp.
Filter A
BiQuad
C
BiQuad
B
BiQuad
A
to
Modulator
Digital
Volume
Ctrl
from
Interface
´
DAC
The signal processing blocks available are:
•
First-order IIR
•
Scalable number of biquad filters
•
3D – Effect
•
Beep Generator
The processing blocks are tuned for typical cases and can achieve high image rejection or low group
delay in combination with various signal processing effects such as audio effects and frequency shaping.
The available first-order IIR and biquad filters have fully user-programmable coefficients. The Resource
Class Column (RC) gives an approximate indication of power consumption.
Table 2-13. Overview – DAC Predefined Processing Blocks
Processing
Interpolation
Channel
1st Order
Num. of
DRC
3D
Beep
Resource
Block No.
Filter
IIR Available
Biquads
Generator
Class
PRB_P1
(1)
A
Stereo
No
3
No
No
No
8
PRB_P2
A
Stereo
Yes
6
Yes
No
No
12
PRB_P3
A
Stereo
Yes
6
No
No
No
10
PRB_P4
A
Left
No
3
No
No
No
4
PRB_P5
A
Left
Yes
6
Yes
No
No
6
PRB_P6
A
Left
Yes
6
No
No
No
6
PRB_P7
B
Stereo
Yes
0
No
No
No
6
PRB_P8
B
Stereo
No
4
Yes
No
No
8
PRB_P9
B
Stereo
No
4
No
No
No
8
PRB_P10
B
Stereo
Yes
6
Yes
No
No
10
PRB_P11
B
Stereo
Yes
6
No
No
No
8
PRB_P12
B
Left
Yes
0
No
No
No
3
PRB_P13
B
Left
No
4
Yes
No
No
4
PRB_P14
B
Left
No
4
No
No
No
4
PRB_P15
B
Left
Yes
6
Yes
No
No
6
PRB_P16
B
Left
Yes
6
No
No
No
4
PRB_P17
C
Stereo
Yes
0
No
No
No
3
PRB_P18
C
Stereo
Yes
4
Yes
No
No
6
PRB_P19
C
Stereo
Yes
4
No
No
No
4
PRB_P20
C
Left
Yes
0
No
No
No
2
PRB_P21
C
Left
Yes
4
Yes
No
No
3
PRB_P22
C
Left
Yes
4
No
No
No
2
PRB_P23
A
Stereo
No
2
No
Yes
No
8
PRB_P24
A
Stereo
Yes
5
Yes
Yes
No
12
PRB_P25
A
Stereo
Yes
5
Yes
Yes
Yes
12
(1)
Default
2.4.1 Processing Blocks – Details
2.4.1.1
3 Biquads, Interpolation Filter A
Figure 2-20. Signal Chain for PRB_P1 and PRB_P4
36
TLV320DAC3203 Application
SLAU434 – May 2012
Copyright © 2012, Texas Instruments Incorporated
