ADC32RF45 Datasheet, PDF (13/108 Pages) Texas Instruments – Analog-to-Digital Converter

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ADC32RF45
SBAS747B – MAY 2016 – REVISED JULY 2016
6.9 Typical Characteristics
typical values are at T_A = 25°C, full temperature range is T_MIN = –40°C to T_MAX = +85°C, ADC sampling rate = 3 GHz, 50%
clock duty cycle, AVDD19 = 1.9 V, AVDD = 1.15 V, DVDD = 1.15 V, and –2-dBFS differential input (unless otherwise noted)
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Input Frequency (MHz)
D001
SNR = 61.8 dBFS; SFDR = 71 dBc;
HD2 = 71 dBc; HD3 = 75 dBc; HD4, HD5 = 77 dBc;
IL spur = 77 dBc; HD2_IL = 80 dBc; worst spur = 73 dBc
Figure 2. FFT for 100-MHz Input Frequency
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Input Frequency (MHz)
D003
SNR = 57.9 dBFS; SFDR = 63 dBc;
HD2 = 63 dBc; HD3 = 66 dBc; HD4, HD5 = 79 dBc;
IL spur = 79 dBc; HD2_IL = 71 dBc; worst spur = 77 dBc
Figure 4. FFT for 1780-MHz Input Frequency
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Input Frequency (MHz)
D005
SNR = 55.4 dBFS; SFDR = 55 dBc;
HD2 = 55 dBc; HD3 = 64 dBc; HD4, HD5 = 69 dBc;
IL spur = 77 dBc; HD2_IL = 67 dBc; worst spur = 75 dBc
Figure 6. FFT for 2700-MHz Input Frequency
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Input Frequency (MHz)
D002
SNR = 60.6 dBFS; SFDR = 64 dBc;
HD2 = 75 dBc; HD3 = 64 dBc; HD4, HD5 = 77 dBc;
IL spur = 82 dBc; HD2_IL = 80 dBc; worst spur = 72 dBc
Figure 3. FFT for 900-MHz Input Frequency
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Input Frequency (MHz)
D004
SNR = 57.2 dBFS; SFDR = 65 dBc;
HD2 = 65 dBc; HD3 = 68 dBc; HD4, HD5 = 76 dBc;
IL spur = 76 dBc; HD2_IL = 70 dBc; worst spur = 73 dBc
Figure 5. FFT for 2100-MHz Input Frequency
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Input Frequency (MHz)
f_IN = 1.78 GHz, A_IN = –10 dBFS
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D007
Figure 7. FFT for 1780-MHz Input Frequency
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