AR0141CS datasheet(22/64 Pages) ONSEMI

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AR0141CS/D Rev. 6, 4/16 EN

©Semiconductor Components Industries, LLC, 2016.

AR0141CS: 1/4-Inch Digital Image Sensor

Sensor PLL

Stream/Standby Control

The sensor supports a soft standby mode. In this mode, the external clock can be option-

ally disabled to further minimize power consumption. If this is done, then the “Power-

Up Sequence” on page 59 must be followed.

Soft Standby

Soft Standby is a low-power state that is controlled through register R0x301A[2].

Depending on the value of R0x301A[4], the sensor will go to Standby after completion of

the current frame readout. When the sensor comes back from Soft Standby, previously

written register settings are still maintained. Soft Standby will not occur if the Trigger pin

is held high.

A specific sequence needs to be followed to enter and exit from Soft Standby.

Entering Soft Standby:

1. Set R0x301A[12] = 1 if serial mode was used

2. Set R0x301A[2] = 0 and drive Trigger pin low.

3. Turn off external clock to further minimize power consumption

Exiting Soft Standby:

1. Enable external clock if it was turned off

2. Set R0x301A[2] = 1 or drive Trigger pin high.

3. Set R0x301A[12] = 0 if serial mode is used

op_pix_clk_div

FSERIAL

445.5

MHz

FSERIAL_CLK

222.75

MHz

CLK_PIX

74.25

37.125

Mpixel/s

CLK_OP

37.125

Mpixel/s

Pixel Rate

148.5

74.25

Mpixel/s

Table 9:

Example PLL Configurations for the Serial Interface

Parameter

4-lane

2-lane

Units

12-bit

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