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LTC1992 数据表(PDF) 6 Page - Linear Technology |
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LTC1992 数据表(HTML) 6 Page - Linear Technology |
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6 / 24 page ![]() LTC2369-18 6 236918fa TYPICAL PERFORMANCE CHARACTERISTICS 32k Point FFT fS = 1.6Msps, fIN = 2kHz SNR, SINAD vs Input Frequency THD, Harmonics vs Input Frequency SNR, SINAD vs Input level, fIN = 2kHz SNR, SINAD vs Reference Voltage, fIN = 2kHz THD, Harmonics vs Reference Voltage, fIN = 2kHz Integral Nonlinearity vs Output Code Differential Nonlinearity vs Output Code DC Histogram TA = 25°C, VDD = 2.5V, OVDD = 2.5V, REF = 5V, fSMPL = 1.6Msps, unless otherwise noted. OUTPUT CODE 0 65536 131072 196608 262144 –2.0 0.0 0.5 1.0 1.5 –0.5 –1.0 –1.5 2.0 236918 G01 OUTPUT CODE –0.5 0.4 0.3 0.2 0.1 0.0 –0.4 –0.3 –0.2 –0.1 0.5 236918 G02 0 65536 131072 196608 262144 CODE 25000 30000 35000 236918 G03 15000 0 131067 131069 131071 131073 131075 131077 40000 = 1.3 20000 10000 5000 FREQUENCY (kHz) 0 100 200 300 400 800 700 600 500 –180 –60 –40 –20 –80 –100 –120 –140 –160 0 236918 G04 SNR = 96.5dB THD = –127dB SINAD = 96.5dB SFDR = 134dB FREQUENCY (kHz) 0 70 75 80 85 90 50 100 150 200 236918 G05 95 100 SNR 25 75 125 175 SINAD FREQUENCY (kHz) 0 –160 –150 –130 –120 –110 –60 THD 2ND 3RD –90 50 100 125 236918 G06 –140 –80 –70 –100 25 75 150 175 200 INPUT LEVEL (dB) –40 95.0 95.5 96.0 96.5 97.0 97.5 SNR SINAD 98.0 –30 –20 –10 0 236918 G07 REFERENCE VOLTAGE (V) 2.5 95 96 97 SNR SINAD 4.5 236918 G08 94 93 3 3.5 4 5 92 91 90 REFERENCE VOLTAGE (V) 2.5 –120 –110 THD 3RD –100 4.5 236918 G09 –130 –140 –125 –115 –105 –135 –145 –150 3 3.5 4 5 2ND |
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