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TABLE 10 - REGISTER NAME: INT_FLAGBit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reserved Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reserved AF_DATA_READY ALS_IF_L ALS_IF_H Reserved
COMMAND BIT NAME FUNCTION BIT VALUE DESCRIPTION 0x16Reserved Reserved 7 : 0 0x00 (0b00000000) Should be kept default Reserved Reserved 7 : 4 0x0 (0b0000) Should be kept default Data ready flag 0x1 (0b1) Data ready flag available AF_DATA_READY 3 active force mode 0x0 (0b0) Data ready flag not available Low threshold crossing interrupt 0x1 (0b1) ALS_IF_L Low threshold interupt flag 2 event flag for the ALS channel
0x170x0 (0b0) No low threshold crossing High threshold crossing interrupt 0x1 (0b1) ALS_IF_H High threshold interupt flag 1 event flag for the ALS channel 0x0 (0b0) No high threshold crossing Reserved Reserved 0 0x0 (0b0) Should be kept default
CALCULATING THE LUX LEVELCommand code 0x10 and 0x11 contain the results of the converted to a decimal value to determine the ambient light channel measurement. The value of the ALS corresponding lux value. The calculation of the channel can be used to calculated the corresponding corresponding lux level is dependent on the programmed illumination. Therefore, the 16-bit code needs to be gain setting and the chosen integration time.
TABLE 11 - RESOLUTION AND MAXIMUM DETECTION RANGE AT ALS_PDDIV (4/4 PD used) TYPICAL RESOLUTION (lx/cnt) MAXIMUM POSSIBLE ILLUMINATION (lx) ALS_GAIN ALS_GAINIT (ms)
x 2 x 1 x 0.66 x 0.5 x 2 x 1 x 0.66 x 0.5400 0.0026 0.0051 0.0078 0.0103 168 337 510 673 200 0.0051 0.0103 0.0156 0.0205 337 673 1020 1346 100 0.0103 0.0205 0.0311 0.0411 673 1346 2040 2693 50 0.0205 0.0411 0.0623 0.0822 1346 2693 4080 5385 25 0.0411 0.0822 0.1245 0.1644 2693 5385 8160 10 771 12.5 0.0822 0.1644 0.2490 0.3287 5385 10 771 16 319 21 542 6.25 0.1644 0.3287 0.4980 0.6574 10 771 21 542 32 639 43 083 3.125 0.3287 0.6574 0.9961 1.3148 (-) (1) (-) (1) (-) (1) (-) (1)
TABLE 12 - RESOLUTION AND MAXIMUM DETECTION RANGE AT ALS_PDDIV (1/4 PD used) TYPICAL RESOLUTION (lx/cnt) MAXIMUM POSSIBLE ILLUMINATION (lx) ALS_GAIN ALS_GAINIT (ms)
x 2 x 1 x 0.66 x 0.5 x 2 x 1 x 0.66 x 0.5400 0.0103 0.0205 0.0311 0.0411 673 1346 2040 2693 200 0.0205 0.0411 0.0623 0.0822 1346 2693 4080 5385 100 0.0411 0.0822 0.1245 0.1644 2693 5385 8160 10 771 50 0.0822 0.1644 0.2490 0.3287 5385 10 771 16 319 21 542 25 0.1644 0.3287 0.4980 0.6574 10 771 21 542 32 639 43 083 12.5 0.3287 0.6574 0.9961 1.3148 21 542 43 083 65 278 86 166 6.25 0.6574 1.3148 1.9921 2.6296 43 083 86 166 130 555 172 333 3.125 1.3148 2.6296 3.9843 5.2593 (-) (1) (-) (1) (-) (1) (-) (1)
Note(1) For integration time of 3.125 ms the maximum count level is no longer 16 bit, so, half the integration time no longer leads to double the max. lux level Rev. 1.1, 12-Mar-2025
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