LUPA-4000 Datasheet, PDF (19/49 Pages) Cypress Semiconductor – 4M Pixel CMOS Image Sensor

LUPA-4000
Data Sheet
An overview of the supplies is given in table 8 and 9. Table 9 summarizes the
supplies related to the pixel array signals, where table 8 summarizes the supplies
related with all other modules.
Table 8: Power supplies
Name
Vaa
Va3
Vdd
Voo
Vdda
Vddd
DC Current Max.current Typ. Max. Description
7mA
50mA
2.5V
Power supply column readout
module.
10mA
50mA
3.3V 3.3V Power supply column readout
module. Should be tuneable to 3.3V
max.
1mA
200mA
2.5V
Power supply digital modules
20mA
20mA
2.5V
Power supply output stages
1mA
200mA
2.5V
Analog supply of ADC circuitry
1mA
200mA
2.5V
Digital supply of ADC circuitry
Name
Vres
Vres_ds
Vmem_h
Vmem_l
Vdd
Vpix
Vpre_l
Table 9: Overview of the power supplies related to the pixel signals
DC
current
1mA
1mA
Max.
current
200mA
200mA
Min.
2.5V
2.0V
1mA
200mA 2.5V
1mA
200mA 2.0V
1mA
12mA
1mA
200mA 2.0V
500mA 2.0V
200mA -400mV
Typ.
3.3V
2.5V
3.3V
2.5 V
2.5V
2.5V
0V
Max. Description
3.5V Power supply reset drivers.
3.3V Power supply dual slope reset
drivers.
3.5V Power supply memory elements in
pixel for high voltage level
3.0V Power supply memory elements in
pixel for low voltage level. Should
be tuneable
3.0V Power supply for Sample
3.3V Power supply pixel array. Should
be tuneable to 3.3V
0V Power supply for Precharge in
off-stat. May be connected to
ground.
The maximum currents mentioned in table 8 and 9 are peak currents which occur once
per frame (except for Vres_ds in multiple slope mode). All power supplies should be
able to deliver these currents except for Vmem_l and Vpre_l, which must be able to
sink this current.
The maximum peak current for Vpix should not be higher than 500mA. It is important
to notice that no power supply filtering on chip is implemented and that noise on these
power supplies can contribute immediately to the noise on the signal. Especially the
voltage supplies Vpix and Vaa are important to be well noise free.
Cypress Semiconductor Corporation
3901 North First Street
San Jose, CA 95134
408-943-2600
Contact: [e-mail] Document #: 38-05712 Rev.**(Revision 1.2 )
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