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ADC31RF80IRMP bảng dữ liệu(PDF) 7 Page - Texas Instruments |
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ADC31RF80IRMP bảng dữ liệu(HTML) 7 Page - Texas Instruments |
7 / 136 page 7 ADC31RF80 www.ti.com SBAS860 – AUGUST 2017 Product Folder Links: ADC31RF80 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated (1) Performance is shown with DDC bypassed. When DDC is enabled, performance improves by the decimation filtering process. (2) Minimum values are specified at AOUT = –3 dBFS. (3) Output amplitude, AOUT, refers to the signal amplitude in the ADC digital output that is same as the analog input amplitude, AIN, except when the digital gain feature is used. If digital gain is G, then AOUT = G + AIN. (4) The ADC internal resistance = 65 Ω, the driving source resistance = 50 Ω. (5) The minimum value of HD2 is specified by bench characterization. 6.6 AC Performance Characteristics: fS = 2949.12 MSPS typical values 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 chip sampling rate = 2949.12 MSPS, 50% clock duty cycle, DDC-bypassed performance (1), AVDD19 = 1.9 V, AVDD = 1.15 V, DVDD = 1.15 V, –2-dBFS differential input, and 0-dB digital gain (unless otherwise noted) PARAMETER TEST CONDITIONS MIN(2) NOM MAX UNIT SNR Signal-to-noise ratio fIN = 100 MHz, AOUT = –2 dBFS 63.2 dBFS fIN = 900 MHz, AOUT = –2 dBFS 61.4 fIN = 1850 MHz, AOUT = –2 dBFS 56 58.5 fIN = 2100 MHz, AOUT = –2 dBFS 57.7 fIN = 2600 MHz, AOUT = –2 dBFS 56.6 fIN = 3500 MHz, AOUT (3) = –3 dBFS with 2-dB gain 54.6 NSD Noise spectral density averaged across the Nyquist zone fIN = 100 MHz, AOUT = –2 dBFS 154.9 dBFS/Hz fIN = 900 MHz, AOUT = –2 dBFS 153.1 fIN = 1850 MHz, AOUT = –2 dBFS 147.7 150.2 fIN = 2100 MHz, AOUT = –2 dBFS 149.4 fIN = 2600 MHz, AOUT = –2 dBFS 148.3 fIN = 3500 MHz, AOUT (3) = –3 dBFS with 2-dB gain 146.3 Small-signal SNR fIN = 1850 MHz, AOUT = –40 dBFS 63.1 dBFS NF(4) Noise figure fIN = 1850 MHz, AOUT = –40 dBFS 24.7 dB SINAD Signal-to-noise and distortion ratio fIN = 100 MHz, AOUT = –2 dBFS 62.1 dBFS fIN = 900 MHz, AOUT = –2 dBFS 61.0 fIN = 1850 MHz, AOUT = –2 dBFS 57.8 fIN = 2100 MHz, AOUT = –2 dBFS 56.9 fIN = 2600 MHz, AOUT = –2 dBFS 55.7 fIN = 3500 MHz, AOUT (3) = –3 dBFS with 2-dB gain 54.5 ENOB Effective number of bits fIN = 100 MHz, AOUT = –2 dBFS 10.0 Bits fIN = 900 MHz, AOUT = –2 dBFS 9.8 fIN = 1850 MHz, AOUT = –2 dBFS 9.3 fIN = 2100 MHz, AOUT = –2 dBFS 9.2 fIN = 2600 MHz, AOUT = –2 dBFS 9.0 fIN = 3500 MHz, AOUT (3) = –3 dBFS with 2-dB gain 8.8 SFDR Spurious-free dynamic range fIN = 100 MHz, AOUT = –2 dBFS 68.0 dBc fIN = 900 MHz, AOUT = –2 dBFS 71 fIN = 1850 MHz, AOUT = –2 dBFS 58 65 fIN = 2100 MHz, AOUT = –2 dBFS 65 fIN = 2600 MHz, AOUT = –2 dBFS 63 fIN = 3500 MHz, AOUT (3) = –3 dBFS with 2-dB gain 68 HD2(5) Second-order harmonic distortion fIN = 100 MHz, AOUT = –2 dBFS 68 dBc fIN = 900 MHz, AOUT = –2 dBFS 71 fIN = 1850 MHz, AOUT = –2 dBFS 58 65 fIN = 2100 MHz, AOUT = –2 dBFS 65 fIN = 2700 MHz, AOUT = –2 dBFS 63 fIN = 3500 MHz, AOUT (3) = –3 dBFS with 2-dB gain 68 |
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