AR0330 Datasheet, PDF (11/77 Pages) ON Semiconductor – CMOS Digital Image Sensor

AR0330: 1/3-Inch CMOS Digital Image Sensor
HiSPi Power Supply Connections
HiSPi Power Supply Connections
The HiSPi interface requires two power supplies. The VDD_HiSPi powers the digital logic
while the VDD_HiSPi _TX powers the output drivers. The digital logic supply is a nominal
1.8V and ranges from 1.7 to 1.9V. The HiSPi drivers can receive a supply voltage of 0.4 to
0.8V or 1.7 to 1.9V.
The common mode voltage is derived as half of the VDD_HiSPi _TX supply. Two settings
are available for the output common mode voltage:
1. SLVS mode. The VDD_HiSPi_Tx supply must be in the range of 0.4 to 0.8V and the
high_vcm register bit R0x306E[9] must be set to “0”. The output common mode volt-
age will be in the range of 0.2 to 0.4V.
2. HiVCM mode. The VDD_HiSPi_Tx supply must be in the range of 1.7 to 1.9V and the
high_vcm register bit R0x306E[9] must be set to “1”. The output common mode volt-
age will be in the range of 0.76 to 1.07V.
Two prior naming conventions have also been used with the VDD_HiSPi and
VDD_HiSPi _TX pins:
1. Digital logic supply was named VDD_SLVS while the driver supply was named
VDD_SLVS_TX.
2. Digital logic supply was named VDD_PHY while the driver supply was named
VDD_SLVS.
AR0330_DS Rev. U Pub. 4/15 EN
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