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DA16200 датащи(PDF) 67 Page - Renesas Technology Corp |
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DA16200 датащи(HTML) 67 Page - Renesas Technology Corp |
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67 / 154 page ![]() DA16200 Ultra Low Power Wi-Fi SoC Datasheet Revision 3.6 04-Jan-2023 CFR0011-120-00 67 of 153 © 2023 Renesas Electronics 9.8 ADC (Aux 12-bit) 9.8.1 Overview DA16200 includes a high precision, ultra-low power, and wide dynamic range SAR ADC with a 12-bit resolution. It has a 4-channel single-end ADC. Analog input is measured by four pins from GPIOA0 to GPIOA3, and pin selection is changed through the register setting. Figure 45 shows the control block diagram. ADC 12b Max : 1Ms Counter 16-bit Ready CH_SEL VI_N[1] VI_N[2] VI_N[3] VI_N[4] Figure 45: ADC Control Block Diagram 9.8.2 Timing Diagram The input is digitized at a maximum of 1.0 Msps throughput rate. And the maximum input clock rate is 15 MHz. Figure 46 shows the conversion timing, and Table 52 describes the DC specifications. Figure 46: 12-bit ADC Timing Diagram CLK 15MHz SAMPLE 1M CLKOUT 1M AUXADC_EN OSC_EN D<11:0> 15*CLK N 15*CLK N+1 15*CLK N+2 15*CLK N+3 15*CLK N+4 N N+1 N+2 N+3 15*CLK |
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