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AS7343 데이터시트(PDF) 18 Page - ams-OSRAM AG |
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AS7343 데이터시트(HTML) 18 Page - ams-OSRAM AG |
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18 / 58 page ![]() Document Feedback AS7343 Functional Description Datasheet • PUBLIC DS001046 • v6-00 • 2023-Jun-07 57 │ 17 8.2 Sensor Array The device features a 5x5-photodiode array. On top and below the photodiode array there are two photodiodes with dedicated functions such as flicker detection ( “FD”) and near- infrared response ( “NIR”). The photodiode “C” represents a photodiode without filter and is responsive in the visible spectral range (“VIS”). Figure 14: Sensor Array 8.3 GPIO The GPIO can be used synchronization input to start/stop the spectral measurement. It also allows synchronizing the LED driver (LDR) with an external start/stop signal. Default state of the GPIO is “output”. 8.4 Interrupt (INT) The interrupt (INT) can be used to define thresholds and read-out the device only when the channel threshold has been reached. The pin is active low. 8.5 LED Driver (LDR) The LED driver is programmable and can be used to drive external LEDs. It is also possible to synchronize the LED driver with an external start/stop signal via pin GPIO. F3 FD NIR FY F1 F2 F4 F6 520µm FD NIR C C C C F 5 F3 F 5 F6 F7 X L F4 F1 F8 F8 F7 X L F2 FY FZ |
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