MT9M034
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PowerDown Sequence
The recommended powerdown sequence for the
MT9M034 is shown in Figure 30. The available power
supplies (V
DD_IO, VDD, VDD_PLL, VAA, VAA_PIX) must
have the separation specified below. Power may be removed
from all supplies simultaneously, and a sudden loss of power
on all rails does not cause damage or affect the lifetime of the
device.
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 configuration, has
ended
3. Turn off V
DD
4. Turn off VDD_IO
5. Turn off V
AA/VAA_PIX
6. Turn off V
DD_PLL
Figure 30. Power Down
V
DD
_IO (1.8/2.8)
t4
t0
t1
t3
EXTCLK
V
DD
(1.8)
V
AA
_PIX
(2.8)
V
DD _PLL (2.8)
Power Down until next Power up cycle
t2
V
AA
Table 25. POWERDOWN SEQUENCE
Definition Symbol Minimum Typical Maximum Unit
VDD to VDD_IO t1 0 μs
VDD_IO to VAA/VAA_PIX t2 0 μs
VAA/VAA_PIX to VDD_PLL t3 0 μs
PwrDn until Next PwrUp Time t4 100 ms
1. t4 is required between power down and next power up time; all decoupling caps from regulators must be completely discharged.
MT9M034
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ILCC48 10x10
CASE 847AD
ISSUE O
MT9M034
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39
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MT9M034I12STCH-S213A-GEVB

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Optical Sensor Development Tools 1.2 MP 1/3" CIS HB
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