AR0330 datasheet(17/77 Pages) ONSEMI

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AR0330_DS Rev. U Pub. 4/15 EN

©Semiconductor Components Industries, LLC,2015.

AR0330: 1/3-Inch CMOS Digital Image Sensor

Sensor Initialization

Power-Down Sequence

The recommended power-down sequence for the AR0330 is shown in Figure 7. The

available power supplies (VDD_IO, VDD_HiSPi, VDD_HiSPi_TX, VDD_PLL, VDD_MIPI, VAA,

VAA_PIX) must have the separation specified below.

1. Disable streaming if output is active by setting standby R0x301a[2] = 0

2. The soft standby state is reached after the current row or frame, depending on config-

uration, has ended.

3. Turn off VDD_HiSPi_TX.

4. Turn off VDD_IO.

5. Turn off VDD and VDD_HiSPi

6. Turn off VAA/VAA_PIX.

7. Turn off VDD_PLL, VDD_MIPI.

Figure 7:

Power Down

Note:

t4 is required between power down and next power up time; all decoupling caps from regulators

must be completely discharged.

Table 8:

Power-Down Sequence

Definition

Symbol

Minimum

Typical

Maximum

Unit

VDD_HiSPi _TX to VDD_IO

–

s

VDD_IO to VDD and VDD_HiSPi

–

s

VDD and VDD_HiSPi to VAA/VAA_PIX

–

s

VAA/VAA_PIX to VDD_PLL

–

s

PwrDn until Next PwrUp Time

100

–

V DD_IO (1.8/2.8)

t 0

EXTCLK

VDD_HISPI_TX (0.4)

VDD, VDD_HiSPi (1.8)

VAA_PIX, VAA (2.8)

VDD_PLL,

VDD_MIPI (2.8)

Power Down until next Power up cycle

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