ADC31RF80 Datasheet, PDF (16/136 Pages) Texas Instruments – 3-GSPS Telecom Receiver and Feedback Device

ADC31RF80
SBAS860 – AUGUST 2017
www.ti.com
Typical Characteristics (continued)
typical values are specified at an ambient temperature of 25°C; minimum and maximum values are specified over an ambient
temperature range of –40°C to +85°C; and ADC sampling rate = 2949.12 MSPS, DDC bypassed performance, 50% clock
duty cycle, AVDD19 = 1.9 V, AVDD = DVDD = 1.15 V, –2-dBFS differential input, and 0-dB digital gain (unless otherwise
noted)
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Input Frequency (MHz)
D019
f_IN1 = 1.77 GHz, f_IN2 = 1.79 GHz, A_IN = –8 dBFS,
IMD = 76 dBFS
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Input Frequency (MHz)
D020
f_IN1 = 1.77 GHz, f_IN2 = 1.790 GHz, A_IN = –36 dBFS,
IMD = 92 dBFS
Figure 21. FFT for Two-Tone Input Signal
(–8 dBFS, f_S = 2457.6 MSPS)
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Input Frequency (MHz)
D021
f_IN1 = 1.8 MHz, f_IN2 = 2.6 GHz, A_IN = –8 dBFS, IMD = 70 dBFS
Figure 22. FFT for Two-Tone Input Signal
(–36 dBFS, f_S = 2457.6 MSPS)
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Input Frequency (MHz)
D022
f_IN1 = 1.8 GHz, f_IN2 = 2.6 GHz, A_IN = –36 dBFS, IMD = 95 dBFS
Figure 23. FFT for Two-Tone Input Signal (–8 dBFS)
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Input Frequency (MHz)
D023
f_IN1 = 2.09 GHz, f_IN2 = 2.1 GHz, A_IN = –8 dBFS, IMD = 71 dBFS
Figure 24. FFT for Two-Tone Input Signal (–36 dBFS)
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Input Frequency (MHz)
D024
f_IN1 = 2.09 MHz, f_IN2 = 2.1 GHz, A_IN = –36 dBFS,
IMD = 92 dBFS
Figure 25. FFT for Two-Tone Input Signal
(–8 dBFS, f_S = 2457.6 MSPS)
Figure 26. FFT for Two-Tone Input Signal
(–36 dBFS, f_S = 2457.6 MSPS)
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