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AS7331 数据表(PDF) 36 Page - ams-OSRAM AG |
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AS7331 数据表(HTML) 36 Page - ams-OSRAM AG |
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36 / 72 page ![]() Document Feedback AS7331 Functional Description Datasheet • PUBLIC DS001047 • v4-00 • 2023-Mar-24 71 │ 35 TIME(1) 0 1 2 3 4 5 6 7 16x 23625.00 11812.50 5906.25 2953.13 1476.56 738.28 369.14 184.57 8x 47250.00 23625.00 11812.50 5906.25 2953.13 1476.56 738.28 369.14 4x 94500.00 47250.00 23625.00 11812.50 5906.25 2953.13 1476.56 738.28 2x 189000.00 94500.00 47250.00 23625.00 11812.50 5906.25 2953.13 1476.56 1x 378000.00 189000.00 94500.00 47250.00 23625.00 11812.50 5906.25 2953.13 (1) TIME (TCONV) – given by CREG1:TIME = 0 … 7 dec, NCLK – number of clock cycle within conversion time TCONV, RESOL – Resolution of internal A/D conversion, GAIN = 1x given by CREG1:GAIN = 11 dec up to GAIN = 2048x given by CREG1:GAIN = 0 dec (see Figure 48). (2) Basic sensitivity of the UVB-channel. Figure 30: UVB- Channel (λ = 280 nm – 315 nm) Programmable FSR and LSB of the Detectable Input Light Irradiance Ee TIME(1) 8 9 10 11 12 13 14 15 NCLK (1) 262144 524288 1.05E+06 2.10E+06 4.19E+06 8.39E+06 1.68E+07 1024 TCONV[s] (1) 0.256 0.512 1.024 2.048 4.096 8.192 16.384 0.001 RESOL[bit](1) 18 19 20 21 22 23 24 10 GAIN(1) FSR [µW/cm²] of detectable irradiance Ee (channel B) 2048x 47.25 23.63 11.81 5.91 2.95 1.48 0.74 189.00 1024x 94.50 47.25 23.63 11.81 5.91 2.95 1.48 378.00 512x 189.00 94.50 47.25 23.63 11.81 5.91 2.95 756.00 256x 378.00 189.00 94.50 47.25 23.63 11.81 5.91 1512.00 128x 756.00 378.00 189.00 94.50 47.25 23.63 11.81 3024.00 64x 1512.00 756.00 378.00 189.00 94.50 47.25 23.63 6048.00 32x 3024.00 1512.00 756.00 378.00 189.00 94.50 47.25 12096.00 16x 6048.00 3024.00 1512.00 756.00 378.00 189.00 94.50 24192.00 8x 12096.00 6048.00 3024.00 1512.00 756.00 378.00 189.00 48384.00 4x 24192.00 12096.00 6048.00 3024.00 1512.00 756.00 378.00 96768.00 2x 48384.00 24192.00 12096.00 6048.00 3024.00 1512.00 756.00 193536.00 1x 96768.00 48384.00 24192.00 12096.00 6048.00 3024.00 1512.00 387072.00 GAIN(1) LSB [nW/cm²] – least significant bit of FSR (channel B) 2048x 0.72 0.36 0.18 0.09 0.05 0.02 0.01 184.57 1024x 1.44 0.72 0.36 0.18 0.09 0.05 0.02 369.14 512x 2.88 1.44 0.72 0.36 0.18 0.09 0.05 738.28 256x 5.77 2.88 1.44 0.72 0.36 0.18 0.09 1476.56 128x 11.54 5.77 2.88 1.44 0.72 0.36 0.18 2953.13 64x 23.07 11.54 5.77 2.88 1.44 0.72 0.36 5906.25 |
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