WM8569_06 Wolfson Microelectronics Ltd., WM8569_06 Datasheet - Page 34
WM8569_06
Manufacturer Part Number
WM8569_06
Description
24-bit, 192khz Stereo Codec with Volume Control
Manufacturer
Wolfson Microelectronics Ltd.
Datasheet
1.WM8569_06.pdf
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WM8569
Production Data
SUGGESTED ANALOGUE LOW PASS POST DAC FILTERS
It is recommended that a lowpass filter be applied to the output from each DAC channel for Hi Fi applications. Typically a
second order filter is suitable and provides sufficient attenuation of high frequency components (the unique low order, high
bit count multi-bit sigma delta DAC structure used in WM8569 produces much less high frequency output noise than
normal sigma delta DACs. This filter is typically also used to provide the 2x gain needed to provide the standard 2Vrms
output level from most consumer equipment.
Wolfson Application Note WAN0171 provides details of suitable post-DAC filter circuits.
Figure 34 Recommended Post DAC Filter Circuit
w
PD Rev 4.0 June 2006
34
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