WM8148 Wolfson Microelectronics Ltd., WM8148 Datasheet - Page 41

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

WM8148
WOLFSON MICROELECTRONICS LTD
COLOUR 3 OUTPUT
Figure 47 Block Diagram of Colour CCD Application
Table 13 Typical Control Register Settings for Figure 47
Table 14 Typical Control Register Settings for Figure 47
Set-up register 1
Set-up register 2
Set-up register 3
Set-up register 4
Set-up register 1
Set-up register 2
Set-up register 3
Set-up register 4
DESCRIPTION
Coarse offsets
DESCRIPTION
Coarse offsets
Maximum Pixel Rate = 4Mpixels/second (Modes 0 and 8)
S
E
N
S
O
R
(CDS, Negative-Going CCD Video Signal, MCLK/VSMP = 8)
(CDS, Negative-Going CCD Video Signal, MCLK/VSMP = 12)
R
G
B
REGISTER
REGISTER
datasheet for
See sensor
B U F F E R
B U F F E R
B U F F E R
details.
ADDRESS
ADDRESS
000001
000010
000011
000101
000110
000001
000010
000011
000101
000110
C
C
C
G
R
B
HEX
HEX
4B
4B
01
00
04
80
81
00
06
80
R I N P
G I N P
BINP
SETTING
SETTING
0000 0001
0000 0000
0000 0100
1000 0000
0100 1011
1000 0001
0000 0000
0000 0110
1000 0000
0100 1011
S E N S O R T I M I N G
BINARY
BINARY
recommended
WM8148
components
Including
external
CONTROL I/F
NOTE
MODE: Mode 0: Three-channel CDS
(8-phase)
SELEN, EN: fully enabled
Default (don’t care)
RESREF: reset sample half-way
between video samples
INVOP: invert digital output
(White = 4095)
PGAFS: ADC set up for negative
polarity video
RLCEXT, RLCV: internal VRLC
voltage, set to 3.7V
NOTE
MODE: Mode 8: Three-channel CDS
(12-phase)
SELEN, EN: fully enabled
Default (don’t care)
RESREF: reset sample half-way
between video samples
INVOP: invert digital output
(White = 4095)
PGAFS: ADC set up for negative
polarity video
RLCEXT, RLCV: internal VRLC
voltage, set to 3.7V
C L O C K S
D A T A
PD Rev 4.0 April 1999
S Y S T E M
Production Data
ASIC
41