WM8974GEFL/V Wolfson Microelectronics, WM8974GEFL/V Datasheet - Page 54
WM8974GEFL/V
Manufacturer Part Number
WM8974GEFL/V
Description
Audio CODECs Mono Codec with Spkr
Manufacturer
Wolfson Microelectronics
Datasheet
1.WM8974GEFLV.pdf
(87 pages)
Specifications of WM8974GEFL/V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
QFN-24
Minimum Operating Temperature
- 25 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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WM8974
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AUDIO SAMPLE RATES
Figure 29 u-Law Companding
Figure 30 A-Law Companding
The WM8974 sample rates for the ADC and the DAC are set using the SR register bits. The cutoffs
for the digital filters and the ALC attack/decay times stated are determined using these values and
assume a 256fs master clock rate.
If a sample rate that is not explicitly supported by the SR register settings is required then the
closest SR value to that sample rate should be chosen, the filter characteristics and the ALC attack,
decay and hold times will scale appropriately.
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u-law Companding
A-law Companding
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Normalised Input
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Normalised Input
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PD, Rev 4.5, September 2008
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Production Data
54
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