WM8141 Wolfson Microelectronics Ltd., WM8141 Datasheet - Page 28

• Manufacturer Part Number: WM8141
• Description: WM8141 : 12-BIT 6MSPS Cis/ccd Analogue Front End/digitiser
• Manufacturer: Wolfson Microelectronics Ltd.

WM8141
WOLFSON MICROELECTRONICS LTD
COLOUR PIXEL-BY-PIXEL
Figure 25 Block Diagram of Colour Pixel-By-Pixel Application, AC Coupled
Table 9
Set-up
register 1
Set-up
register 2
Set-up
register 3
Set-up
register 4
Set-up
register 5
Set-up
register 6
NAME
Maximum pixel rate = 1.5Mpixels/second (Mode 5)
Maximum pixel rate = 2Mpixels/second (Mode 1)
S
E
N
S
O
R
REGISTER
Typical Control Register Settings for Figure 25 (CDS, Negative-Going CCD
Video Signal, MCLK:VSMP = 6:1/8:1)
R
G
B
ADDRESS
000001
000010
000011
000101
001000
001001
datasheet for
See sensor
BUFFER
BUFFER
BUFFER
details.
HEX
13
20
1F
00
00
00
C
C
C
R
G
B
SETTING
XX01 1111
0010 0011
0010 0000
0000 0000
0000 0000
0000 0000
BINARY
RINP
GINP
BINP
SENSOR TIMING
RECOMMENDED
COMPONENTS
WM8141
INCLUDING
EXTERNAL
NOTE
EN = 1: Device enabled;
CDS = 1: CDS enabled;
MONO = 0: Colour operation;
SELPD = 0: No selective power down;
PGAFS[1:0] = 10: ADC range optimised for
negative going video;
MODE4 = 0: Not required for colour.
MUXOP[1:0] = 00: 12-bit parallel output;
INVOP = 0: Output data not inverted;
VRLCEXT = 0: RLCDAC required to provide
reset level clamp voltage since sensor is
AC coupled;
RLCDACRNG = 1: RLCDAC range is 0V
to V
DEL[1:0] = 00: Default latency
RLCV[3:0] = 1111: RLCDAC full scale voltage;
CDSREF[1:0] = 01: Default reset sample
position;
CHAN[1:0] = XX: Colour mode so not
required.
Line-by-Line mode not used so this register is
not required.
Only used if programmable VSMP circuit is
required.
All channels enabled.
RT
;
CONTROL I/F
CLOCKS
DATA
PD Rev 3.0 October 2000
SYSTEM
Production Data
ASIC
28