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AFE7900IALK Datasheet(PDF) 89 Page - Texas Instruments |
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AFE7900IALK Datasheet(HTML) 89 Page - Texas Instruments |
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89 / 157 page  6.12.8 TX Typical Characteristics at 800MHz (continued) Typical values at TA = +25°C with nominal supplies. Unless otherwise noted, TX input data rate = 491.52MSPS, fDAC = 11796.48MSPS, interleave mode, AOUT = –1 dBFS, 1st Nyquist zone output, Internal PLL, fREF = 491.52MSPS, 24x Interpolation, DSA = 0 dB, Sin(x)/x enabled, Dither = 1, DSA calibrated, TX Clock Dither Enabled Tone Spacing (MHz) 0 40 80 120 160 200 240 280 320 360 400 -82 -81 -80 -79 -78 -77 -76 -75 -74 -73 -40qC 25qC 105qC fDAC = 8847.36MSPS, straight mode, fCENTER =0.85 GHz, matching at 0.8 GHz, –13 dBFS each tone, worst channel Figure 6-303. TX IMD3 vs Tone Spacing and Temperature at 0.85 GHz Tone Spacing (MHz) 0 40 80 120 160 200 240 280 320 360 400 -83 -82 -81 -80 -79 -78 -77 -76 -75 -74 -73 -72 -40qC 25qC 105qC fDAC = 11796.48MSPS, straight mode, fCENTER =0.85 GHz, matching at 0.8 GHz, –13 dBFS each tone, worst channel Figure 6-304. TX IMD3 vs Tone Spacing and Temperature at 0.85 GHz Pout/tone (dBFS) -37 -34 -31 -28 -25 -22 -19 -16 -13 -10 -7 -100 -95 -90 -85 -80 -75 -70 -65 -60 1TX 2TX 3TX 4TX fDAC = 5898.24MSPS, straight mode, fCENTER = 0.85 GHz, fSPACING = 20 MHz, matching at 0.8 GHz Figure 6-305. TX IMD3 vs Digital Level at 0.85 GHz Pout/tone (dBFS) -37 -34 -31 -28 -25 -22 -19 -16 -13 -10 -7 -100 -95 -90 -85 -80 -75 -70 -65 -60 1TX 2TX 3TX 4TX fDAC = 8847.36MSPS, straight mode, fCENTER = 0.85 GHz, fSPACING = 20 MHz, matching at 0.8 GHz Figure 6-306. TX IMD3 vs Digital Level at 0.85 GHz Pout/tone (dBFS) -37 -34 -31 -28 -25 -22 -19 -16 -13 -10 -7 -105 -100 -95 -90 -85 -80 -75 -70 -65 -60 1TX 2TX 3TX 4TX fDAC = 11796.48MSPS, interleave mode, fCENTER = 0.85 GHz, fSPACING = 20 MHz, matching at 0.8 GHz Figure 6-307. TX IMD3 vs Digital Level at 0.85 GHz Output Frequency (MHz) 600 750 900 1050 1200 1350 1500 -159 -158 -157 -156 -155 -154 -153 -152 -151 -150 Aout=-30dBFS Aout=-20dBFS Aout=-12dBFS Aout=-6dBFS Aout=-1dBFS Matching at 0.8 GHz, Single tone, fDAC = 11.79648GSPS, interleave mode, 40-MHz offset, DSA = 0dB Figure 6-308. TX Single Tone Output Noise vs Frequency and Amplitude at 0.85 GHz www.ti.com AFE7900 SBASA44A – AUGUST 2021 – REVISED MARCH 2022 Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback 89 Product Folder Links: AFE7900 |
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