WM8143-10 Wolfson Microelectronics Ltd., WM8143-10 Datasheet
![no-image](/images/no-image-200.jpg)
WM8143-10
Manufacturer Part Number
WM8143-10
Description
WM8143 : 10 or 12-BIT, 4MSPS Analogue Front End For CCD Image Sensors
Manufacturer
Wolfson Microelectronics Ltd.
Datasheet
1.WM8143-10.pdf
(24 pages)
Description
The
conditioning required by CCD sensors with a 10-bit ADC.
The WM8143-10 requires minimal external circuitry and
provides a cost-effective sensor to digital domain system
solution.
Each of the three analogue conditioning channels
includes reset level clamp, CDS, fine offset level shifting
and programmable gain amplification. The three channels
are multiplexed into the ADC. The output from the ADC is
fed to the output bus pins OP[9:0] via a 10/8 bit
multiplexer, enabled by the OEB signal.
The flexible output architecture allows ten-bit data to be
accessed either on a ten-bit bus or via a time-multiplexed
eight-bit bus. The WM8143-10 can be configured for
pixel-by-pixel or line-by-line multiplexing operation. Reset
level clamp and/or CDS features can be optionally
bypassed. The device configuration is programmed either
via a simple serial interface or via an eight-bit parallel
interface.
The serial/parallel interfaces of the WM8143-10 are
control compatible with those of the WM8144-10 and
WM8144-12.
Block Diagram
Production Data datasheets
contain final specifications current
on publication date. Supply of
products conforms to Wolfson
Microelectronic's terms and
conditions.
RINP
GINP
BINP
VMID
WM8143-10
VRLC
CL
S/H
S/H
S/H
RS
integrates
CDS
CDS
CDS
VRU
S/H
S/H
S/H
VS
VRT
MUX
the
Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK
5-BIT REG
5-BIT REG
5-BIT REG
Tel: +44 (0) 131 667 9386 Fax: +44 (0) 131 667 5176
PGA
PGA
PGA
VRB
Wolfson Microelectronics
analogue
www: http://www.wolfson.co.uk
VMID
email: sales@wolfson.co.uk
8-BIT +
SIGN DAC
8-BIT +
SIGN DAC
8-BIT +
SIGN DAC
10-bit/6MSPS CCD Signal Processor
signal
+
+
+
VSMP
OFFSET
OFFSET
OFFSET
TIMING CONTROL
VMID
VMID
VMID
+
+
+
Features
Applications
MCLK
Reset level clamp
Correlated double sampling (CDS)
Fine offset level shifting
Programmable gain amplification
10-bit ADC with maximum 6 MSPS
Simple clocking scheme
Control by serial or parallel interface
Time multiplexed eight-bit data output mode
32 pin TQFP package
Interface compatible with WM8144-10 and
WM8144-12
Flatbed scanners
Sheet feed scanners
Film scanners
CCD sensor interfaces
Contact image sensor (CIS) interfaces
RLC
M
U
X
AGND
WM8143-10
DGND
CONTROL INTERFACE
10-bit
ADC
SERIAL/PARALLEL
CONFIGURABLE
1998 Wolfson Microelectronics Ltd.
Production Data June 1998 Rev 3f
DVDD
AVDD
WM8143-10
OEB
OP[9:0]
SDI / DNA
SCK / RNW
SEN / STB
NRESET