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MT9M114 Folha de dados(PDF) 7 Page - ON Semiconductor |
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MT9M114 Folha de dados(HTML) 7 Page - ON Semiconductor |
7 / 45 page MT9M114 www.onsemi.com 7 POWER-UP AND POWER-DOWN SEQUENCE Powering up and powering down the sensor requires voltages to be applied in a particular order, as seen in Figure 4. The timing requirements are shown in Table 4. The sensor includes a power-on reset feature that initiates a reset upon power up of the sensor Figure 4. Power-Up and Power-Down Sequence VDD_IO t1 VAA, VDD_PLL EXTCLK SCLK SDATA VDD, VDD_PHY t2 t3 t4 t5 t6 t7 Table 4. POWER-UP AND DOWER-DOWN SIGNAL TIMING Symbol Parameter Min Typ Max Unit t1 Delay from VDD_IO to VDD and VDD_PHY 0 – 50 ms t2 Delay from VDD_IO to VAA and VDD_PLL 0 – 50 ms t3 EXTCLK Activation t2 – – ms t4 First Serial Command (Notes 1, 2) – 44.5 – ms t5 EXTCLK Cutoff t6 – – ms t6 Delay from VAA and VDD_PLL to VDD_IO 0 – 50 ms t7 Delay from VDD and VDD_PHY to VDD_IO 0 – 50 ms 1. Under the condition of EXTCLK = 24 MHz and default settings with CONFIG = 1. 2. The host should poll the Command register to determine when the device is initialized. |
Nº de peça semelhante - MT9M114_1 |
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Descrição semelhante - MT9M114_1 |
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