WM8152
Production Data
APPLICATIONS INFORMATION
RECOMMENDED EXTERNAL COMPONENTS
DVDD2 DVDD1
DVDD2
DVDD1
DGND
C1
C2
AVDD
C3
AVDD
AGND1
AGND2
DGND DGND
AGND
AGND
VRT
VRX
VRB
Video
Input
VINP
C4
C5
C6
C7
C8
WM8152
VRLC/VBIAS
C9
AGND
AGND
DVDD2
DVDD1
AVDD
MCLK
VSMP
Timing
Signals
C10
+
C11
+
C12
+
OP[3]/SDO
OP[2]
Output
Data
Bus
SCK
SDI
DGND
DGND
AGND
Interface
Controls
OP[1]
SEN
OP[0]
NOTES: 1. C1-9 should be fitted as close to WM8152 as possible.
2. AGND and DGND should be connected as close to WM8152 as possible.
Figure 19 External Components Diagram
RECOMMENDED EXTERNAL COMPONENTS VALUES
COMPONENT
REFERENCE
SUGGESTED
VALUE
DESCRIPTION
C1
C2
100nF
100nF
100nF
10nF
De-coupling for DVDD2.
De-coupling for DVDD1.
De-coupling for AVDD.
C3
C4
High frequency de-coupling between VRT and VRB.
C5
1µF
Low frequency de-coupling between VRT and VRB (non-polarised).
De-coupling for VRB.
C6
100nF
100nF
100nF
100nF
10µF
C7
De-coupling for VRX.
C8
De-coupling for VRT.
C9
De-coupling for VRLC.
C10
C11
C12
Reservoir capacitor for DVDD2.
Reservoir capacitor for DVDD1.
Reservoir capacitor for AVDD.
10µF
10µF
Table 6 External Components Descriptions
PD Rev 4.0 January 2004
24
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
