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ADC3908CSSS 数据表(PDF) 27 Page - Texas Instruments |
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ADC3908CSSS 数据表(HTML) 27 Page - Texas Instruments |
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27 / 131 page ![]() 5.14 Typical Characteristics - 125MSPS (continued) Typical values at TA = 25°C, ADC sampling rate = 125MSPS, AIN = –1dBFS, differential input, AVDD = IOVDD = 1.8V, internal 1.2V voltage reference, unless otherwise noted. Input Frequency (MHz) 0 10 20 30 40 50 60 -120 -100 -80 -60 -40 -20 0 SNR = 59.1dBFS, SFDR = 66dBc, Non-HD23 = 71dBFS Figure 5-50. Single Tone FFT at FIN = 90MHz Input Frequency (MHz) 0 10 20 30 40 50 60 -120 -100 -80 -60 -40 -20 0 AIN = -7dBFS/tone, IMD3 = -84dBc Figure 5-51. Two Tone FFT at FIN = 10/12MHz Input Frequency (MHz) 0 10 20 30 40 50 60 -120 -100 -80 -60 -40 -20 0 AIN = -7dBFS/tone, IMD3 = -97dBc Figure 5-52. Two Tone FFT at FIN = 90/92MHz Input Frequency (MHz) 0 10 20 30 40 50 60 70 80 90 100 110 120 60 60 60.1 64 60.2 68 60.3 72 60.4 76 60.5 80 60.6 84 60.7 88 60.8 92 60.9 96 61 100 SNR, ext REF SFDR, ext REF Non HD23, ext REF SNR, int REF SFDR, int REF Non-HD23, int REF Figure 5-53. AC Performance vs Input Frequency Input Amplitude (dBFS) -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 58 10 58.5 20 59 30 59.5 40 60 50 60.5 60 61 70 61.5 80 62 90 62.5 100 63 110 SNR SFDR Non HD23 FIN = 5MHz Figure 5-54. AC Performance vs Input Amplitude FIN = 10MHz Figure 5-55. AC Performance vs Sampling Rate www.ti.com ADC3910D025, ADC3910D065, ADC3910D125 ADC3910S025, ADC3910S065, ADC3910S125 SBASAD1A – DECEMBER 2023 – REVISED MAY 2024 Copyright © 2024 Texas Instruments Incorporated Submit Document Feedback 27 Product Folder Links: ADC3910D025 ADC3910D065 ADC3910D125 ADC3910S025 ADC3910S065 ADC3910S125 |
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