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MCP33131 датащи(PDF) 13 Page - Microchip Technology |
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MCP33131 датащи(HTML) 13 Page - Microchip Technology |
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13 / 54 page ![]() 2018 Microchip Technology Inc. DS20006122A-page 13 MCP33131/MCP33121/MCP33111-XX Note: Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V, VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF. MCP33131-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz. MCP33131-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz. FIGURE 2-13: SNR/SINAD/ENOB vs. VREF FIGURE 2-14: SNR/SINAD vs. Temperature: VREF = 5V. FIGURE 2-15: SNR/SINAD vs. Input Amplitude: FIN = 10 kHz. FIGURE 2-16: SFDR/THD vs. VREF FIGURE 2-17: SNR/SINAD vs. Temperature: VREF = 2.5V. FIGURE 2-18: SNR/SINAD vs. Input Amplitude: FIN = 10 kHz. 2 2.5 3 3.5 4 4.5 5 5.5 Reference Voltage (V) 74 76 78 80 82 84 86 88 90 ENOB SNR (dB) SINAD (dB) 12 12.5 13 13.5 14 -40 -20 0 20 40 60 80 100 120 140 Temperature ( oC) 83 84 85 86 87 88 SNR (dB) SINAD (dB) V REF = 5V -30 -25 -20 -15 -10 -5 0 Input Amplitude (dBFS) 80 81 82 83 84 85 86 87 88 89 90 SNR (dBFS) SINAD(dBFS) V REF = 5V 2 2.5 3 3.5 4 4.5 5 5.5 Reference Voltage (V) -100 -98 -96 -94 -92 -90 THD (dB) SFDR (dB) 90 92 94 96 98 100 -40 -20 0 20 40 60 80 100 120 140 Temperature ( oC) 74 75 76 77 78 79 80 81 82 83 84 SNR (dB) SINAD (dB) V REF = 2.5V -30 -25 -20 -15 -10 -5 0 Input Amplitude (dBFS) 75 76 77 78 79 80 81 82 83 84 85 SNR (dBFS) SINAD(dBFS) V REF = 2.5V |
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