WM8148 Wolfson Microelectronics Ltd., WM8148 Datasheet - Page 37

• Manufacturer Part Number: WM8148
• Description: WM8148 : 12-BIT/12 MSPS Ccd/cis Analogue Front End/digitiser
• Manufacturer: Wolfson Microelectronics Ltd.

WM8148
RECOMMENDED EXTERNAL COMPONENTS
Figure 44 External Components Diagram
Table 9 External Components Descriptions
WOLFSON MICROELECTRONICS LTD
N O T E S :
COMPONENT
REFERENCE
C10
C11
C12
C13
C14
C15
C16
C1
C2
C3
C4
C5
C6
C7
C8
C9
1.
2.
C1-12 should be fitted as close to
WM8148 as possible.
AGND and DGND should be connected
as close to WM8148 as possible.
Interface
Controls
Signals
Timing
Inputs
Video
SUGGESTED
D G N D
VALUE
100nF
100nF
100nF
100nF
10nF
10nF
10nF
10nF
10nF
10nF
10nF
1 F
1 F
1 F
1 F
1 F
C1
D V D D
C2
A G N D
13
24
26
36
37
39
46
47
45
48
43
42
34
35
40
30
25
1
8
4
5
7
2
6
DESCRIPTION
De-coupling for DVDD1.
De-coupling for DVDD2.
De-coupling for AVDD4.
De-coupling for AVDD3.
De-coupling for AVDD2.
De-coupling for AVDD1.
High frequency de-coupling between VRT and VRB.
Low frequency de-coupling between VRT and VRB (non-polarised).
De-coupling for VRX.
De-coupling for VRLC.
De-coupling for VRB.
De-coupling for VRT.
Reservoir capacitor for DVDD.
Reservoir capacitor for DVDD.
Reservoir capacitor for AVDD.
Reservoir capacitor for AVDD.
D V D D 1
D V D D 2
D G N D 1
D G N D 2
D G N D 3
D G N D 4
RINP
G I N P
BINP
M C L K
V S M P
R L C
S C K / R N W
S E N / S T B
SDI/DNA
P N S
O E B
N R E S E T
O V R D
A G N D 1
A G N D 2
A G N D 3
A G N D 4
A G N D 5
W M 8 1 4 8
A V D D 1
A V D D 2
A V D D 3
A V D D 4
V R L C
O P 1 1
O P 1 0
S D O
VRX
V R T
V R B
O P 9
O P 8
O P 7
O P 6
O P 5
O P 4
O P 3
O P 2
O P 1
O P 0
N C
N C
N C
41
28
27
33
32
31
29
38
23
22
21
20
19
18
17
16
15
14
12
11
10
44
3
9
C11
C3
A G N D
C12
C4
A V D D
A G N D
Output
Output
Serial
C5
C7
Data
B u s
C6
C8
+
C13
C9
A G N D
D G N D
D V D D
+
C10
C14
PD Rev 4.0 April 1999
+
Production Data
C15
A V D D
A G N D
+
C16
37