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MCS11 Datasheet(PDF) 63 Page - PADAUK Technology. |
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MCS11 Datasheet(HTML) 63 Page - PADAUK Technology. |
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63 / 108 page  MCS11 ADC-Type Enhanced FPPA TM Controller ©Copyright 2018, PADAUK Technology Co. Ltd Page 63 of 108 PDK-DS-MCS11_v020 – Apr. 20, 2018 5-21-6. Using the comparator and band-gap 1.20V The internal band-gap module can provide 1.20 volt, it can measure the external supply voltage level. The band-gap 1.20 volt is selected as minus input of comparator and Vinternal R is selected as plus input, the supply voltage of Vinternal R is VDD, the VDD voltage level can be detected by adjusting the voltage level of Vinternal R to compare with band-gap. If N (gpcs[3:0] in decimal) is the number to let Vinternal R closest to band-gap 1.20 volt, the supply voltage VDD can be calculated by using the following equations: . For using Case 1: VDD = [ 32 / (N+9) ] * 1.20 volt ; For using Case 2: VDD = [ 24 / (N+1) ] * 1.20 volt ; For using Case 3: VDD = [ 40 / (N+9) ] * 1.20 volt ; For using Case 4: VDD = [ 32 / (N+1) ] * 1.20 volt ; Please refer to IDE utility for more information and sample code. |
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