Production Data
WM8772EFT – 32 LEAD TQFP
APPLICATIONS INFORMATION
RECOMMENDED EXTERNAL COMPONENTS
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
De-coupling for DVDD and AVDD.
De-coupling for DVDD and AVDD.
Analogue input high pass filter capacitors
0.1µF
10µF
10µF
33Ω
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 23 External Components Description
PD Rev 4.2 October 2005
69
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