AR0141CS datasheet(33/64 Pages) ONSEMI

33 / 64 page

AR0141CS/D Rev. 6, 4/16 EN

©Semiconductor Components Industries, LLC, 2016.

AR0141CS: 1/4-Inch Digital Image Sensor

Frame Readout

Figure 30 illustrates how the sensor active readout time can be minimized while

reducing the frame rate. 750 VB rows were added to the output frame to reduce the

1280 x 720 frame rate from 60 fps to 30 fps without increasing the delay between the

readout of the first and last active row.

Figure 30:

Example of the Sensor Output of a 1280 x720 Frame at 30 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.

Table 14:

Serial SYNC Codes Included with Each Protocol Included with the AR0141CS Sensor

Interface/Protocol

Start of Vertical

Blanking Row (SOV)

Start of Frame

(SOF)

Start of Active Line

(SOL)

End of Line

(EOL)

End of Frame

(EOF)

Parallel

Parallel interface uses FRAME VALID (FV) and LINE VALID (LV) outputs to denote start and end of line and

frame.

HiSPi Streaming-S

Required

Unsupported

Required

Unsupported

HiSPi Streaming-SP

Required

Unsupported

HiSPi Packetized SP

Unsupported

Required

Serial SYNC Codes

(780 Rows)

H B (370 P ixels )

Frame Valid

Line Valid

1/30s

Active Rows

Vertical Blanking

Time

End of Frame

Readout

Start of Vertical Blanking

Start of Frame

Start of Active Row

End of Line

End of Frame

Row Reset

Row Read

Row Reset

Row Read

1280 x 720

Row Reset

Row Read

Row Reset

Row Read

End of Frame

Readout

(780 Rows)

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