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WM8569
APPLICATIONS INFORMATION
RECOMMENDED EXTERNAL COMPONENTS
Figure 31 Recommended External Components Diagram
RECOMMENDED EXTERNAL COMPONENTS VALUES
COMPONENT
REFERENCE
SUGGESTED
VALUE
DESCRIPTION
C1 and C5
C2 to C4
C8 and C9
C6 and C10
C7 and C11
C12
10µF
0.1µF
1µF
0.1µF
10µF
10µF
33Ω
De-coupling for DVDD and AVDD.
De-coupling for DVDD and AVDD.
Analogue input high pass filter capacitors
Reference de-coupling capacitors for VMID and ADCREF pin.
Filtering for VREFP. Omit if AVDD low noise.
R1
Filtering for VREP. Use 0Ω if AVDD low noise.
Table 11 Recommended External Components Description
Note: Further details for filtering on reference pins are available in Wolfson Application Note WAN0144.
PP Rev 1.1 December 2005
33
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
