LUPA-1300 Datasheet, PDF (23/48 Pages) Cypress Semiconductor – 1.3 M Pixel High Speed CMOS Image Sensor

LUPA-1300
Datasheet
Important notes:
1.At start up the Vpix supply draws a very high current (> 300 mA) which has to be
limited (max. 200 mA) otherwise the bond wires of the particular supply will be
destroyed. One should make sure that the Vpix power supply limits the current draw
to the Vpix sensor supply pins to max. 200mA. When the bond wires of Vpix are
destroyed the sensor isn’t operating normally and will not meet the described
specifications.
2. VmemL must sink a current, not source it. All power supplies should be decoupled
very close to the sensor pin (typical 100nF to filter high frequency dips and 10 microF
to filter slow dips). A typical decoupling circuit is shown in the figure below. Vres_ds
must be able to sink and source current.
Figure 11a: Schematic of typical decoupling of power supply (source current)
Figure 11b: Schematic of typical decoupling of power supply (sink current)
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Contact [e-mail] Document # : 38-05711 Rev.**( Revision 3.1) Page 23 of 48