AR0141CS datasheet(17/64 Pages) ONSEMI

17 / 64 page

AR0141CS/D Rev. 6, 4/16 EN

©Semiconductor Components Industries, LLC, 2016.

AR0141CS: 1/4-Inch Digital Image Sensor

Pixel Sensitivity

Figure 16:

Row Read and Row Reset Showing Fine Integration

TFINE = fine_integration_time/clk_pix

(EQ 2)

The maximum allowed value for fine_integration_time is

line_length_pck - fine_integration_time_max_margin

(EQ 3)

Figure 17:

Row Integration Time is Greater Than the Frame Readout Time

The minimum frame-time is defined by the number of row periods per frame and the

row period. The sensor frame-time will increase if the coarse_integration_time is set to a

value equal to or greater than the frame_length_lines.

Read Row N

Reset Row K

T FINE = fine_integration _time x (1/CLK_PIX)

Start of Read Row N

and Reset Row K

Start of Read Row N + 1

and Reset Row K + 1

ROW = lin e_length _pck x (1/CLK_PIX)

Im age

V ertic al B lank ing

S hutter

Pointer

Read

Pointer

Tim e

E x tended V ertic al B lank ing

Im age

4.1 m s

TFRAME = frame_length_lines x TROW

16.6ms = 750 rows x 22.22

μs/row

TCOARSE=coarse_integration_time x TROW

20.7ms = 930 rows x 22.22

μs/row

AR0141CS Datasheet(PDF) 17 Page - ON Semiconductor