Datasheet

Z
-1
Z
-1
+
Z
-1
Z
-1
D1*2
D2
N1*2
N0
N2
( )
2
2
1
1
2 3
2
2
1
10
zDzD22
zNzN2N
zH
--
--
--
++
=
PCM5141, PCM5142
SLAS759A –AUGUST 2012–REVISED SEPTEMBER 2012 www.ti.com
Figure 72 shows a screen capture of PurePath Studio.
Figure 72. PurePath Studio Screen Capture
Biquad Section
The transfer function of each of the biquad filters is given by
(2)
Figure 73. Biquad Block
Table 33. Biquad Filter Coefficients
Filter Channel Coefficient Register
N0 C10 (Pg 44, Reg 48,49,50,51)
N1 C11 (Pg 44, Reg 52,53,54,55)
Lch,
BIQUAD (1) - 1 BIQUAD (2) - 1 N2 C12 (Pg 44, Reg 56,57,58,59)
Rch
D1 C13 (Pg 44, Reg 60,61,62,63)
D2 C14 (Pg 44, Reg 64,65,66,67)
N0 C15 (Pg 44, Reg 68,69,70,71)
N1 C16 (Pg 44, Reg 72,73,74,75)
Lch,
BIQUAD (1) - 2 BIQUAD (2) - 2 N2 C17 (Pg 44, Reg 76,77,78,79)
Rch
D1 C18 (Pg 44, Reg 80,81,82,83)
D2 C19 (Pg 44, Reg 84,85,86,87)
56 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated
Product Folder Links: PCM5141 PCM5142