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AS7058 Datasheet(PDF) 67 Page - ams-OSRAM AG |
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AS7058 Datasheet(HTML) 67 Page - ams-OSRAM AG |
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67 / 199 page  AS7058 Functional description Datasheet • PUBLIC • Document Feedback DS001077 • v2-00 • 2025-Sep-24 67 / 199 / 7.11 Startup information To guarantee proper startup of AS7058 it is recommended to follow a defined startup timing of the power supply reels. It is important that VVCSELS supply voltage is delayed compared to VDVDD, VAVDD and VIOVDD supply voltage like it is shown in Figure 61. However, if the suggested timing cannot be fulfilled and all supply voltages do start in parallel (tST_VCSELS=0 ms) this is supported with the drawback that the connected LEDs might light up for a short period of time during the very first startup of the device until all supplies are settled. If this behavior is acceptable, all supplies can start up in parallel. Figure 61: AS7058 startup timing diagram 7.11.1 Parameter Table 14: Startup timing parameter Symbol Parameter Conditions Min Typ Max Unit tST_VCSELS Startup delay VLED supply voltage 0 1 ms VAVDDx VDVDD VIOVDD VVCSELS tST_VCSELS VAVDD_MIN VDVDD_MIN VIOVDD _MIN |
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