Preliminary PI3041A datasheet

Figure 5. Video Output Test and Application Circuit

Since switching energies are high frequencies components, they tend to integrate to a 0 value and the

remainder adds a constant value to offset the dark level. After the pixel is integrated, the CAP is reset

to zero volts by activating the shunt switch, SW, that connects the video line to ground prior to

accessing the following pixel element. As it is seen, depicting a typical pixel voltage waveform, in

Figure 6, Single Pixel Output Voltage, the shunt time is controlled with CP. Simultaneous to SW

activation, the pixel element storage is, also, reset to the dark reference level, hence initializing the

pixel for its integration process cycle. The signal pixels Vp(n) is referenced to its Dark Level as it is

seen in Figure 6.

Figure 6. Single Pixel Video Output

Two Test Setups For Specifications And Performance

First Setup: The standard specifications are the image sensor tests that are performed on the wafer

probe machine where each device on the wafer is tested in production. However, the data in these

measurements are measured with a clock frequency at a fixed 500 KHz. Since the pixel rate is equal

to the clock rate, the pixel rate is also at 500KHz. The specification under the section Electro-Optical

Characteristics (25

Page 6 of 18 Date: 09/23/05