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PDF LZ34B1B Data sheet ( Hoja de datos )
| Número de pieza | LZ34B1B | |
| Descripción | 1/4-type Color CMOS Image Sensor | |
| Fabricantes | Sharp Electrionic Components | |
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LZ34B1B
LZ34B1B
1/4-type Color CMOS Image Sensor with
350 k Pixels
DESCRIPTION
The LZ34B1B is a 1/4-type (4.5 mm) solid-state
color image sensor that consists of PN photo-
diodes and CMOS (Complementary Metal Oxide
Semiconductor) devices. The sensor further
includes a timing generator (TG), a correlated
double sampling (CDS) circuit, an auto gain control
(AGC) circuit and an analog-to-digital converter
(ADC) circuit. With approximately 350 000 pixels
(703 horizontal x 499 vertical), the sensor provides
a stable digital color image with extremely low
power consumption.
FEATURES
• Progressive scan
• Square pixel
• Compatible with VGA standard
• Number of image pixels : 655 (H) x 493 (V)
• Number of optical black pixels
– Horizontal : 24 front and 24 rear
– Vertical : 3 front and 3 rear
• Pixel pitch : 5.6 µm (H) x 5.6 µm (V)
• R, G, and B primary color mosaic filters
• Image inversion function (horizontally and/or
vertically)
• Available for two types of power save mode
– AGC and AD circuits become power-off with
serial data
– All circuits become power-off with STBY pin
• Monitoring mode
• Analog output and 8-bit digital output
• Variable gain control (3 to 30 dB)
• Variable electronic focal plane shutter (1/15 to
1/7 875 s)
• Single +2.8 V power supply
• Package : 36-pin LCC* (N-LCC036-S425B)
* Leadless Chip Carrier
PIN CONNECTIONS
36-PIN LCC
TOP VIEW
BIAS1
AGCOUT
AGND
AVDD
OFS
ADL
ADH
NC
STBY
1
2
3
4
5
6
7
8
9
27 SDI
26 VD
25 HD
24 CLK
23 D7
22 D6
21 D5
20 D4
19 D3
(N-LCC036-S425B)
PRECAUTIONS
• Refer to "PRECAUTIONS FOR CMOS IMAGE
SENSORS".
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in
catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
1
1 page  
LZ34B1B
CHARACTERISTICS (1/15 s progressive scan readout mode)
(TA = +25˚C, Operating conditions : The typical values specified in "RECOMMENDED OPERATING CONDITIONS".
Color temperature of light source : 3 200 K, IR cut-off filter (CM-500, 1mmt) is used.)
• Measurement point : Analog image signal output (pin No.32), before AGC circuit and AD converter.
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
NOTE
Standard output voltage
Photo response non-uniformity
VO
PRNU
150 mV
14 %
1
2
Saturation output voltage
VSAT
400 700
mV 3
Dark output voltage
Sensitivity (Green channel)
VDARK
2 3 mV 4
R (G)
150 250
mV 5
Supply current
Standby current
IVDD
ISTBY
13 mA 6
1 10 µA 7
Vertical line fixed pattern noise
VFPN
0.5
1.1 mVp-p
8
NOTES :
1. The average output voltage of G signal under uniform
illumination. The standard exposure conditions are
defined as when VO is 150 mV.
2. The image area is divided into 10 x 10 segments under
the standard exposure conditions. Each segment's
voltage is the average output voltage of all pixels within
the segment. PRNU is defined by (Vmax – Vmin)/VO,
where Vmax and Vmin are the maximum and minimum
values of each segment's voltage respectively.
3. The image area is divided into 10 x 10 segments. Each
segment's voltage is the average output voltage of all
pixels within the segment. VSAT is the minimum
segment's voltage under 10 times exposure of the
standard exposure conditions.
4. The difference between average output voltage of the
image area and that of the OB area, under non-
exposure conditions.
5. The average output voltage of G signal when a 500 lux
light source with a 90% reflector is imaged by a lens of
F4, F50 mm.
6. Total current of analog and digital power supplies, in the
dark and at the standard load conditions.
7. Total current of power supply in standby mode. (Pin
No.9 (STBY) is fixed to "H" level and other input pins are
fixed to "H" level or "L" level.)
8. One mean horizontal line signal <bi> is obtained by
adding all the horizontal line signals <aij> vertically and
dividing them by the line number. <xi> is the deviation of
the center pixel from the average of successive 5 pixels
in <bi>. VFPN is the maximum absolute value of <xi>.
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5 Page 
LZ34B1B
Setting of Offset Level
• One LSB of the offset code represents approximately 0.002 V.
• Nominal offset values at typical codes are shown below.
OFFSET LEVEL (V)
D11 D12 D13 D14 D15 D16 D17 D18
0.9 L L L L L L L L
1.0 L L H L H L H H
1.1 L H L H L H L H
1.2 H L L L L L L L
1.3 H L H L H L H L
1.4 H H L H L H L H
1.5 H H H H H H H H
Setting of Shutter Speed
• One LSB of the shutter speed code represents 1H, where 1H is the HD pulse period.
• Shutter speed values at typical codes are shown below in normal mode, monitoring mode and USB mode.
SHUTTER SPEED
(Exposure Time Unit : H)
D19 D20 D21 D22 D23 D24 D25 D26 D27 D28
Normal
Monitoring
525 262 L L L L L L L L L L
••
••
265 2 L H L L L L L H L L
264 1 L H L L L L L H L H
263 262 L H L L L L L H H L
••
••
27 262 L H H H H H L L H L
26 262 L H H H H H L L H H
25 262 L H H H H H L H L L
••
••
2 262 H L L L L L H L H H
1 262 H L L L L L H H L L
525 262 H L L L L L H H L H
••
••
525 262 H H H H H H H H H H
Setting of Driving Modes
FUNCTION
Normal mode
Monitoring mode
D31
L
H
D37
L
L
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet LZ34B1B.PDF ] | |
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