AR0141CS View Datasheet(PDF) - ON Semiconductor

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AR0141CS

1/4‐inch Digital Image Sensor

ON Semiconductor 

AR0141CS

Table 11. CONFIGURATION FOR HORIZONTAL SUBSAMPLING

x_odd_inc

No Subsampling

x_odd_inc = 1

skip = (1+1) × 0.5 = 1x

Skip 2x

x_odd_inc = 3

skip = (1+3) ×0.5 = 2x

Analog Bin 2x

Digital Bin 2x

x_odd_inc = 3

skip = (1+3) × 0.5 = 2x

col_sf_bin_en = 1

x_odd_inc = 3

skip = (1+3) × 0.5 = 2x

col_bin = 1

Restrictions

The horizontal FOV must be programmed

to meet the following rule:

x_addr_end * x_addr_start ) 1

(x_odd_inc ) 1)ń2

+ even number

Table 12. CONFIGURATION FOR VERTICAL SUBSAMPLING

y_odd_inc

No Subsampling

y_odd_inc = 1

skip = (1+1) × 0.5 = 1x

row_bin = 0

Skip 2x

Analog Bin 2x

1. In skip2 the window size has to be a multiple of 4.

y_odd_inc = 3

skip = (1+3) × 0.5 = 2x

row_bin = 0

y_odd_inc = 3

skip = (1+3) × 0.5 =2x

row_bin = 1

Restrictions

The vertical FOV must be programmed to

meet the following rule:

y_addr_end * y_addr_start ) 1

(y_odd_inc ) 1)ń2

+ even number

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 + 1ń(CLK_PIX) [frame_length_lines line_length_pck ) extra_delay]

(eq. 7)

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