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PDF WM8213 Data sheet ( Hoja de datos )
| Número de pieza | WM8213 | |
| Descripción | 24MSPS 16-bit CCD Digitiser | |
| Fabricantes | Wolfson Microelectronics | |
| Logotipo |  |
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24MSPS 16-bit CCD Digitiser
WM8213
DESCRIPTION
The WM8213 is a 16-bit analogue front end/digitiser IC
which processes and digitises the analogue output signals
from CCD sensors or Contact Image Sensors (CIS) at pixel
www.DataSheet4U.scaommple rates of up to 24MSPS.
The device includes three analogue signal processing
channels each of which contains Reset Level Clamping,
Correlated Double Sampling and Programmable Gain and
Offset adjust functions. Three multiplexers allow single
channel processing. The output from each of these
channels is time multiplexed into a single high-speed 16-bit
Analogue to Digital Converter. The digital output data is
available in 8-bit wide multiplexed format and there is also
an optional single byte output mode, or 4-bit multiplexed
LEGACY mode.
An internal 4-bit DAC is supplied for internal reference level
generation. This may be used during CDS to reference CIS
signals or during Reset Level Clamping to clamp CCD
signals. An external reference level may also be supplied.
ADC references are generated internally, ensuring optimum
performance from the device.
Using an analogue supply voltage of 3.3V and a digital
interface supply of 3.3V, the WM8213 typically only
consumes 350mW.
BLOCK DIAGRAM
FEATURES
• 16-bit ADC
• 24MSPS conversion rate
• Low power – 350mW typical
• 3.3V single supply operation
• Single, 2 or 3 channel operation
• Correlated double sampling
• Programmable gain (9-bit resolution)
• Programmable offset adjust (8-bit resolution)
• Flexible clamp control with programmable clamp voltage
• Flexible timing, can be made compatible with WM819X
and WM815X parts.
• 8-bit wide multiplexed data output format
• 8-bit only output mode
• 4-bit LEGACY multiplexed nibble mode
• Internally generated voltage references
• 28-lead SSOP package, pin compatible with WM8199
• Serial control interface
APPLICATIONS
• High speed USB2.0 compatible scanners
• Multi-function peripherals
• High-performance CCD sensor interface
• Digital Copiers
WOLFSON MICROELECTRONICS plc
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/
Production Data, July 2007, Rev 4.0
Copyright ©2007 Wolfson Microelectronics plc.
1 page  
Production Data
WM8213
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at
or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical
Characteristics at the test conditions specified.
ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible
to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage
of this device.
Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage
conditions prior to surface mount assembly. These levels are:
MSL1 = unlimited floor life at <30°C / 85% Relative Humidity. Not normally stored in moisture barrier bag.
www.DataSheet4U.McoSmL2 = out of bag storage for 1 year at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL3 = out of bag storage for 168 hours at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
The Moisture Sensitivity Level for each package type is specified in Ordering Information.
CONDITION
MIN MAX
Analogue supply voltage: AVDD
GND - 0.3V
GND + 5V
Digital supply voltages: DVDD1 − 2
GND - 0.3V
GND + 5V
Digital ground: DGND
GND - 0.3V
GND + 0.3V
Analogue grounds: AGND1 − 2
GND - 0.3V
GND + 0.3V
Digital inputs, digital outputs and digital I/O pins
GND - 0.3V
DVDD2 + 0.3V
Analogue inputs (RINP, GINP, BINP)
GND - 0.3V
AVDD + 0.3V
Other pins
GND - 0.3V
AVDD + 0.3V
Operating temperature range: TA
Storage temperature after soldering
0°C
-65°C
+70°C
+150°C
Notes:
1. GND denotes the voltage of any ground pin.
2. AGND1, AGND2 and DGND pins are intended to be operated at the same potential. Differential voltages
between these pins will degrade performance.
RECOMMENDED OPERATING CONDITIONS
CONDITION
SYMBOL
MIN
TYP
MAX
UNITS
Operating temperature range
Analogue supply voltage
TA 0
70 °C
AVDD
2.97
3.3
3.63
V
Digital core supply voltage
DVDD1
2.97
3.3
3.63
V
Digital I/O supply voltage
DVDD2
2.97
3.3
3.63
V
Notes:
1. DVDD2 should be operated at the same potential as DVDD1 ± 0.3V.
THERMAL PERFORMANCE
PARAMETER
Performance
Thermal resistance – junction to
case
Thermal resistance – junction to
ambient
SYMBOL TEST CONDITIONS
RθJC
RθJA
Tambient = 25°C
MIN
TYP
23.9
67.1
Notes:
1. Figures given are for package mounted on 4-layer FR4 according to JESD51-5 and JESD51-7.
MAX
UNIT
°C/W
°C/W
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PD Rev 4.0 July 2007
5
5 Page 
Production Data
SERIAL INTERFACE
WM8213
www.DataSheet4U.com
Figure 4 Serial Interface Timing
Test Conditions
AVDD = DVDD1 = DVDD2 = 3.3V, AGND = DGND = 0V, TA = 25°C, MCLK = 24MHz unless otherwise stated.
PARAMETER
SCK period
SYMBOL
tSPER
TEST CONDITIONS
SCK high
tSCKH
SCK low
tSCKL
SDI set-up time
tSSU
SDI hold time
tSH
SCK to SEN set-up time
tSCE
SEN to SCK set-up time
tSEC
SEN pulse width
tSEW
SEN low to SDO = Register data
tSERD
SCK low to SDO = Register data
tSCRD
SCK low to SDO = ADC data
tSCRDZ
Note:
1. Parameters are measured at 50% of the rising/falling edge
MIN
83.3
37.5
37.5
6
6
12
12
60
TYP
MAX
30
30
30
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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PD Rev 4.0 July 2007
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet WM8213.PDF ] | |
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