AR0141CS datasheet(27/64 Pages) ONSEMI

поискавой системы для электроныых деталей

AR0141CS датащи(PDF) 27 Page - ON Semiconductor

27 / 64 page

AR0141CS/D Rev. 6, 4/16 EN

©Semiconductor Components Industries, LLC, 2016.

AR0141CS: 1/4-Inch Digital Image Sensor

Sensor Frame Rate

The time required to read out an image frame (TFRAME) can be derived from the number

of clocks required to output each image and the pixel clock.

The frame-rate is the inverse of the frame period.

fps=1/TFRAME

(EQ 6)

The number of clocks can be simplified further into the following parameters:

• The number of clocks required for each sensor row (line_length_pck)

This parameter also determines the sensor row period when referenced to the sensor

readout clock. (TROW = line_length_pck x 1/CLK_PIX)

• The number of row periods per frame (frame_length_lines)

• An extra delay between frames used to achieve a specific output frame period

(extra_delay)

TFRAME=1/(CLK_PIX) ×[frame_length_lines × line_length_pck + extra_delay]

(EQ 7)

Figure 25:

Frame Period Measured in Clocks

frame_length_lines = active rows + VB

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