WM8181 查看數據表（PDF） - Wolfson Microelectronics plc
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WM8181 Datasheet PDF : 14 Pages
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Advanced Information
RECOMMENDED EXTERNAL COMPONENTS
WM8181
DVDD
15 DVDD
C1
10 DGND
AVDD
AVDD 16
C2
AGND1 1
AGND2 2
Video
Inputs
Clamp
Control
4 VINP
5 VINM
WM8181
11 CLAMP
DVDD
+
C7
AVDD
+
C8
DGND
AGND
Timing
Signals
13 MCLK
12 VSMP
DOUT 14
Output Data
Reference
Control
NOTES: 1. C1 to C6 should be fitted as close to
WM8181 as possible.
3 VREFIN
VRT 7
VRB 6
C5
C3
C4
C6
2. AGND and DGND should be connected
as close to WM8181 as possible.
AGND
References
Figure 6 Recommended External Components Diagram
COMPONENT
REFERENCE
C1
C2
C3
C4
C5
C6
C7
C8
SUGGESTED
VALUE
0.1µF
0.1µF
0.1µF
1µF
0.1µF
0.1µF
10µF
10µF
DESCRIPTION
Decoupling for DVDD.
Decoupling for AVDD.
High frequency decoupling between VRT and VRB.
Low frequency decoupling between VRT and VRB (non-polarised, optional).
Decoupling for VRB.
Decoupling for VRT.
Reservoir capacitor for DVDD.
Reservoir capacitor for AVDD.
Table 2 External Components Description
WOLFSON MICROELECTRONICS LTD
AI Rev 3.0 January 2000
13
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