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AR0237CSSC12SPRA0-DR bảng dữ liệu(PDF) 33 Page - ON Semiconductor

tên linh kiện AR0237CSSC12SPRA0-DR
Giải thích chi tiết về linh kiện  1/2.7-Inch 2.1 Mp/Full HD Digital Image Sensor
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AR0237CSSC12SPRA0-DR bảng dữ liệu(HTML) 33 Page - ON Semiconductor

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AR0237CS/D Rev. 4, 6/16 EN
33
©Semiconductor Components Industries, LLC, 2016.
AR0237CS: 1/2.7-Inch 2.1 Mp/Full HD Digital Image Sensor
Power-On Reset and Standby Timing
Power-On Reset and Standby Timing
Power-Up Sequence
The recommended power-up sequence for the AR0237 is shown in Figure 15. The avail-
able power supplies (VDD_IO, VDD, VDD_SLVS, VDD_PLL, VAA, VAA_PIX) must have the
separation specified below.
1. Turn on VDD_PLL power supply.
2. After 100s, turn on VAA and VAA_PIX power supply.
3. After 100s, turn on VDD_IO power supply.
4. After 100s, turn on VDD power supply.
5. After 100s, turn on VDD_SLVS power supply.
6. After the last power supply is stable, enable EXTCLK.
7. Assert RESET_BAR for at least 1ms. The parallel interface will be tri-stated during this
time.
8. Wait 150000 EXTCLKs (for internal initialization into software standby.
9. Configure PLL, output, and image settings to desired values.
10. Wait 1ms for the PLL to lock.
11. Set streaming mode (R0x301a[2] = 1).
Figure 15:
Power Up
VDD_PLL (2.8)
VAA_PIX
VAA (2.8)
VDD_IO (1.8/2.8)
VDD (1.8)
VDD_SLVS (0.4)
EXTCLK
RESET_BAR
t0
t1
t2
t3
tx
t4
t5
t6
Hard Reset
Internal
Initialization
Software
Standby
PLL Lock
Streaming



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