WM8143-10 Wolfson Microelectronics Ltd., WM8143-10 Datasheet - Page 12
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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)
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WM8143-10
9.6pF for maximum gain and F is the sample frequency
in Hz. Table 2 illustrates the maximum and minimum
input impedance at different frequencies.
Table 2 Effects of Frequency on Input Impedance
Calibration
To achieve optimum performance of the WM8143-10, a
calibration procedure must be implemented. This is
achieved by using a combination of the gain and offset
functions to amplify and shift the input signal so that it
lies within and maximises the input ADC range.
FREQUENCY
SAMPLING
(MHz)
0.5
1
2
4
6
IMPEDANCE
(M ) MIN.
GAIN
6.6
3.3
1.6
0.8
0.5
Wolfson Microelectronics
IMPEDANCE
(K ) MAX.
GAIN
208
104
52
26
17
12
PD Rev 3f June 98
Production Data
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