Datasheet-1

PDF: 3295348826/Source:7478516499 Aptina reserves the right to change products or specifications without notice.
MT9V022_DS - Rev.H 6/10 EN
43 ©2005 Aptina Imaging Corporation. All rights reserved.
MT9V022: 1/3-Inch Wide-VGA Digital Image Sensor
Electrical Specifications
Performance Specifications
Table 13 summarizes the specification for each performance parameter.
Notes: 1. All specifications address operation is at T
A
=25°C (±3°C) and supply voltage = 3.3V. Image sensor was
tested without a lens. Multiple images were captured and analyzed.
Setup: VDD = VAA = VAAPIX = LVDSVDD = 3.3V. Testing was done with default frame timing and default
register settings, with the exception of AEC/AGC, row noise correction, and auto black level, which were
disabled.
Performance definitions are detailed in the following sections.
Test 1: Sensitivity
A flat-field light source (90 lux, color temperature 4400K, broadband, w/ IR cut filter) is
used as an illumination source. Signals are measured in LSB on the sensor output. A
series of four frames are captured and averaged to obtain a scalar sensitivity output
code.
Test 2: Dark Signal Non-Uniformity (DSNU)
The image sensor is held in the dark. Analog gain is changed to the maximum setting of
4X. Signals are measured in LSB on the sensor output. A series of four frames are
captured and averaged (pixel-by-pixel) into one average frame. DSNU is calculated as
the standard deviation of this average frame.
Test 3: Photo Response Non-Uniformity (PRNU)
A flat-field light source (90 lux, color temperature 4400K, broadband, with IR cut filter) is
used as an illumination source. Signals are measured in LSB on the sensor output. Two
series of four frames are captured and averaged (pixel-by-pixel) into one average frame,
one series is captured under illuminated conditions, and one is captured in the dark.
PRNU is expressed as a percentage relating the standard deviation of the average frames
difference (illuminated frame - dark frame) to the average illumination level:
(EQ 16)
where S
illumination
(i) is the signal measured for the i-th pixel from the average illumi-
nated frame, S
dark
(i) is the signal measured for the i-th pixel from the average dark
frame, and N
p
is the total number of pixels contained in the array.
Table 13: Performance Specifications
Parameter Unit Minimum Typical Maximum Test Number
Sensitivity LSB 400 572 745 1
DSNU LSB N/A 2.3 7.0 2
PRNU % N/A 1.3 4.0 3
Dynamic Range dB 52.0 54.4 N/A 4
SNR dB 33.0 37.3 N/A 5
PRNU 100
1
N
p
------
S
illumination
i() S
dark
i()–()
2
i 1=
N
p
∑
1
N
p
------
S
illumination
i()()
i 1=
N
p
∑
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