WM8143-12 Wolfson Microelectronics Ltd., WM8143-12 Datasheet - Page 13

• Manufacturer Part Number: WM8143-12
• Description: WM8143 : 10 or 12-BIT, 4MSPS Analogue Front End For CCD Image Sensors
• Manufacturer: Wolfson Microelectronics Ltd.

Production Data
Table 3 WM8143-12 Mode Summary
1
2
3
4
5
6
* Only indicates relevant register bits
MODE
Colour
Monochrome
Fast
Monochrome
Max. Speed
Monochrome
Slow Colour
Slow
Monochrome
DESCRIPTION
Yes
Yes
Yes
No
Yes
Yes
AVAIL-
ABLE
CDS
Wolfson Microelectronics
1.33MSPS
1.33MSPS
2.67MSPS
4MSPS
1MSPS
1MSPS
SAMPLE
RATE
MAX.
Three input channels
(R, G, B) are sampled
in parallel at max.
1.33MSPS. The
sampled data is
multiplexed into a
single data stream
before the internal
ADC, giving an
internal serial rate of
max. 4MSPS
One input channel is
continuously sampled.
The internal
multiplexer is held in
one position under
control of the user.
Identical to Mode 2
except that max.
sample rate is
2.67MSPS
Identical to Mode 2
except that max.
sample rate is 4MSPS
Identical to Mode 1
except that max.
sample rate is 1MSPS
Identical to Mode 2
except that max.
sample rate is 1MSPS
SENSOR INTERFACE
DESCRIPTION
13
MCLK max.
8MHz.
MCLK:
VSMP ratio
is 6:1
Identical to
Mode 1
MCLK max.
8MHz.
MCLK:
VSMP ratio
is 3:1
MCLK max.
8MHz.
MCLK:
VSMP ratio
is 2:1
MCLK max.
8MHz.
MCLK:
VSMP ratio
is 8:1
MCLK max.
8MHz.
MCLK:
VSMP ratio
is 8:1
REQUIRE-
TIMING
MENTS
Setup Reg. 1:
03(H)
Setup Reg. 1:
07(H)
Setup Reg. 3:
bits b[7-6]
define which
channel is
sampled
Identical to
Mode 2 plus
Setup Reg. 3:
bits b[5-4] must
be set to 00(H)
Not applicable
Identical to
Mode 1
Identical to
Mode 2
CONTENTS
REGISTER
WITH CDS
WM8143-12
PD. Rev 4 Nov. 99
Setup Reg. 1:
01(H)
Setup Reg. 1:
05(H)
Setup Reg. 3:
bits b[7-6]
define which
channel is
sampled
Identical to
Mode 2
Setup Reg. 1:
45(H)
Setup Reg. 3:
bits b[7-6]
define which
channel is
sampled
Identical to
Mode 1
Identical to
Mode 2
CONTENTS
REGISTER
WITHOUT
CDS*