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PCM5142A Datasheet(PDF) 36 Page - Texas Instruments

Part # PCM5142A
Description  PCM514x 2-VRMS DirectPath™, 112/106-dB Audio Stereo DAC With 32-bit, 384-kHz PCM Interface
PDF  123 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

PCM5142A Datasheet(HTML) 36 Page - Texas Instruments

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background image
Z-1
Z-1
+
Z-1
Z-1
D1*2
D2
N1*2
N0
N2
( )
2
2
1
1
2 3
2
2
1
1
0
z
D
z
D
2
2
z
N
z
N
2
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H
-
-
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-
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+
=
PCM5141, PCM5142
SLAS759B – AUGUST 2012 – REVISED JANUARY 2016
www.ti.com
Figure 58 shows a screen capture of PurePath Studio.
Figure 58. PurePath Studio Screen Capture
8.3.4.3.2
Biquad Section
The transfer function of each of the biquad filters is given by Equation 1.
(1)
Figure 59. Biquad Block
Table 21. 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)
36
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Product Folder Links: PCM5141 PCM5142



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