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CS8420 Datasheet(PDF) 43 Page - Cirrus Logic

Part # CS8420
Description  DIGITAL AUDIO SAMPLE RATE CONVERTER
PDF  80 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS8420 Datasheet(HTML) 43 Page - Cirrus Logic

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CS8420
DS245PP2
43
11.20 Sample Rate Ratio (30) (Read Only)
The Sample Rate Ratio is Fso divided by Fsi. This value is represented as an integer and a fractional
part. The value is meaningful only after the both the PLL and SRC have reached lock, and the SRC
output is being used
SRR7-6The integer part of the sample rate ratio
SRR5-0 The fractional part of the sample rate ratio
11.21 C-bit or U-bit Data Buffer (32 - 55)
Either channel status data buffer E or user data buffer E (provided UBM bits are set to block mode)
is accessible via these register addresses.
11.22 CS8420 I.D. and Version Register (127) (Read Only)
ID3-0
ID code for the CS8420. Permanently set to 0001
VER3-0
CS8420 revision level. Revision B is coded as 0001, Revision C is coded as 0011,
Revision D is coded as 0100
7
6
5
4
3210
SRR7
SRR6
SRR5
SRR4
SRR3
SRR2
SRR1
SRR0
7
6
5
4
321
ID3
ID3
ID2
ID1
ID0
VER3
VER2
VER1
VER0



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