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MCP3912 Datenblatt(PDF) 2 Page - Microchip Technology |
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MCP3912 Datenblatt(HTML) 2 Page - Microchip Technology |
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2 / 82 page ![]() MCP3912 DS20005348A-page 2 2014 Microchip Technology Inc. Package Type Functional Block Diagram 2 26 3 4 5 6 10 11 12 13 14 18 17 16 15 28 27 25 CH1- SDI SDO EP 29 7 CH1+ CH2+ 19 20 24 SCK 23 CS OSC2 CH2- 22 OSC1/CLKI 1 8 9 NC DGND 21 CH3- CH3+ MCP3912 5x5 QFN* * Includes Exposed Thermal Pad (EP); see Table 1-3. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 AVDD CH0+ CH0- CH3+ NC NC NC NC REFIN+/OUT CH1- CH1+ CH2+ CH2- CH3- DVDD RESET SDI DGND NC DR DGND AGND REFIN- SDO SCK CS OSC2 OSC1/CLKI MCP3912 SSOP AMCLK DMCLK/DRCLK REFIN+/OUT REFIN- POR AVDD Monitoring Vref+ Vref- VREFEXT Voltage Reference Vref + - Xtal Oscillator MCLK OSC1 OSC2 Digital SPI Interface Clock Generation DMCLK OSR<2:0> PRE<1:0> ANALOG DIGITAL SDO SDI SCK DR RESET CS AGND DGND AVDD DVDD CH0+ CH0- - + PGA OSR/2- PHASE1 <11:0> MOD<3:0> Modulator + OFFCAL_CH0 <23:0> GAINCAL_CH0 <23:0> X DATA_CH0<23:0> SINC 3+ SINC 1 Phase Shifter Offset Cal. Gain Cal. CH1+ CH1- - + PGA OSR/2 MOD<7:4> Modulator + OFFCAL_CH1 <23:0> GAINCAL_CH1 <23:0> X DATA_CH1<23:0> SINC 3+ SINC 1 Phase Shifter Offset Cal. Gain Cal. CH2+ CH2- - + PGA OSR/2- PHASE1 <23:12> MOD<11:8> Modulator OFFCAL_CH2 <23:0> GAINCAL_CH2 <23:0> X DATA_CH2<23:0> SINC 3+ SINC 1 Phase Shifter Offset Cal. Gain Cal. CH3+ CH3- - + PGA OSR/2 MOD<15:12> Modulator OFFCAL_CH3 <23:0> GAINCAL_CH3 <23:0> X DATA_CH3<23:0> SINC 3+ SINC 1 Phase Shifter Offset Cal. Gain Cal. POR DVDD Monitoring |
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