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AN4374 Scheda tecnica(PDF) 3 Page - STMicroelectronics |
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AN4374 Scheda tecnica(HTML) 3 Page - STMicroelectronics |
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3 / 25 page ![]() DocID025366 Rev 2 3/25 AN4374 List of figures 25 List of figures Figure 1. LED1642GW and ALED1642GW block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. LED1642GW and ALED1642GW typical application circuit . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 3. Digital key summary chart-data latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 4. Brightness register setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 5. Brightness register: first BRT word example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 6. Brightness register: last BRT word example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 7. Digital key summary chart-write switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 8. Switch register, example 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 9. Channel data and write switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 10. LED1642GW and ALED1642GW configuration register . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 11. LED1642GW and ALED1642GW brightness register: first word example . . . . . . . . . . . . . 11 Figure 12. LED1642GW and ALED1642GW brightness register: last word example . . . . . . . . . . . . . 11 Figure 13. PWCLK counter and comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 14. Normal detection sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 15. Digital key summary chart-detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 16. Error detection power-on timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 17. LED1642GW and ALED1642GW error detection: open detection start . . . . . . . . . . . . . . . 15 Figure 18. LED1642GW and ALED1642GW error detection: short detection start . . . . . . . . . . . . . . . 16 Figure 19. LED1642GW and ALED1642GW error detection: combined detection start . . . . . . . . . . . 17 Figure 20. LED1642GW and ALED1642GW error detection: detection end . . . . . . . . . . . . . . . . . . . . 17 Figure 21. Interface signal filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 |
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