AR0141CS datasheet(32/64 Pages) ONSEMI

32 / 64 page

AR0141CS/D Rev. 6, 4/16 EN

©Semiconductor Components Industries, LLC, 2016.

AR0141CS: 1/4-Inch Digital Image Sensor

Frame Readout

The sensor readout begins with vertical blanking rows followed by the active rows. The

frame readout period can be defined by the number of row periods within a frame

(frame_length_lines) and the row period (line_length_pck/clk_pix). The sensor will read

the first vertical blanking row at the beginning of the frame period and the last active row

at the end of the row period.

Figure 29:

Example of the Sensor Output of a 1280 x 720 Frame at 60 fps

The frame valid and line valid signals mentioned in this diagram represent internal signals within the sensor.

The SYNC codes represented in this diagram represent the HiSPi Streaming-SP protocol.

Figure 29 aligns the frame integration and readout operation to the sensor output. It also

shows the sensor output using the HiSPi Streaming-SP protocol. Different sensor proto-

cols will list different SYNC codes.

Active Rows

Vertical Blanking

Time

1/60s

End of Frame

Readout

End of Frame

Readout

Start of Vertical Blanking

Start of Frame

Start of Active Row

End of Line

Serial SYNC Codes

End of Frame

Row Reset

Row Read

Row Reset

Row Read

Frame Valid

Line Valid

1/60s

Row Reset

Row Read

Row Reset

Row Read

1280 x 720

HB (370 Pixels/Column)

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