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AR0330 数据表(PDF) 68 Page - ON Semiconductor |
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AR0330 数据表(HTML) 68 Page - ON Semiconductor |
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68 / 77 page ![]() AR0330_DS Rev. U Pub. 4/15 EN 68 ©Semiconductor Components Industries, LLC,2015. AR0330: 1/3-Inch CMOS Digital Image Sensor Spectral Characteristics Note: The CRA listed in the advanced data sheet described the 2048x1536 field of view (2.908mm image height). This information was sufficient for configuring the sensor to read both the 4:3 (2048x1536) and 16:9 (2304x1296) aspect ratios. The CRA information listed in the data sheet has now been updated to represent the entire pixel array (2304x1536). Read the Sensor CRA Follow the steps below to obtain the CRA value of the Image Sensor: 1. Set the register bit field R0x301A[5] = 1. 2. Read the register bit fields R0x31FA[11:9]. 3. Determine the CRA value according to Table 45. Table 44: Chief Ray Angle (CRA) 25 ° Image Height CRA % mm deg. 00 0 5 0.152 2.24 10 0.305 4.50 15 0.457 6.75 20 0.609 0.895 25 0.761 11.11 30 0.914 13.19 35 1.066 15.20 40 1.218 17.10 45 1.371 18.88 50 1.523 20.50 55 1.675 21.95 60 1.828 23.18 65 1.980 24.17 70 2.132 24.89 75 2.284 25.35 80 2.437 25.54 85 2.589 25.51 90 2.741 25.33 95 2.894 25.11 100 3.046 25.01 Table 45: CRA Value Binary Value of R0x31FA[11:9] CRA Value 000 0 001 21 010 25 011 12 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 0 10 20 30 40 50 60 70 80 90 100 110 Image Height (%) |
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