WM8199
Production Data
RECOMMENDED EXTERNAL COMPONENTS
DVDD1 DVDD2
3
8
DVDD1
DVDD2
DGND
10
C1
C2
AVDD
21
22
2
AVDD
AGND1
AGND2
C3
DGND
AGND
AGND
24
25
23
VRT
VRX
VRB
1
RINP
GINP
BINP
C4
C5
Video
Inputs
28
27
C6
C7
C8
26
VRLC/VBIAS
C9
AGND
WM8199
AGND
20
19
18
17
16
15
14
13
OP[7]/SDO
DVDD1 DVDD2
AVDD
7
5
6
MCLK
OP[6]
Timing
Signals
VSMP
OP[5]
C10
C11
C12
+
+
+
Output
Data
Bus
RLC/ACYC
OP[4]
OP[3]
12
11
9
SCK
SDI
OP[2]
DGND
AGND
OP[1]
SEN
OP[0]
Interface
Controls
4
OEB
NOTES: 1. C1-9 should be fitted as close to WM8199 as possible.
2. AGND and DGND should be connected as close to WM8199 as possible.
Figure 26 External Components Diagram
COMPONENT
REFERENCE
SUGGESTED
VALUE
DESCRIPTION
C1
C2
100nF
100nF
100nF
10nF
De-coupling for DVDD1.
De-coupling for DVDD2.
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 DVDD1.
Reservoir capacitor for DVDD2.
Reservoir capacitor for AVDD.
10µF
10µF
Table 7 External Components Descriptions
PD Rev 3.2 November 2003
28
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
