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ADC3908CSSS 数据表(PDF) 20 Page - Texas Instruments |
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ADC3908CSSS 数据表(HTML) 20 Page - Texas Instruments |
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20 / 47 page ![]() 6.14 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. AIN = -7dBFS/tone, IMD3 = -87dBc Figure 6-42. Two Tone FFT at FIN = 90/92MHz Input Frequency (MHz) 5 15 25 35 45 55 65 75 85 95 105 115 49 60 49.2 64 49.4 68 49.6 72 49.8 76 50 80 50.2 84 50.4 88 50.6 92 50.8 96 51 100 SNR, int REF SFDR, int REF Non-HD23, int REF Figure 6-43. AC Performance vs Input Frequency Input Amplitude (dBFS) -30 -25 -20 -15 -10 -5 0 49 0 50 10 51 20 52 30 53 40 54 50 55 60 56 70 57 80 58 90 59 100 60 110 SNR SFDR Non HD23 FIN = 5MHz Figure 6-44. AC Performance vs Input Amplitude FIN = 10MHz Figure 6-45. AC Performance vs Sampling Rate Input Frequency (MHz) 0 20 40 60 80 100 120 140 160 180 200 50 55 60 65 70 75 80 85 90 95 100 105 AIN = -1dBFS on aggressor channel Figure 6-46. Crosstalk vs Input Frequency AVDD (V) 1.7 1.75 1.8 1.85 1.9 48 60 48.5 65 49 70 49.5 75 50 80 50.5 85 SNR SFDR Non HD23 FIN = 5MHz Figure 6-47. AC Performance vs AVDD ADC3908D025, ADC3908D065, ADC3908D125 ADC3908S025, ADC3908S065, ADC3908S125 SBASAU9 – OCTOBER 2024 www.ti.com 20 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated Product Folder Links: ADC3908D025 ADC3908D065 ADC3908D125 ADC3908S025 ADC3908S065 ADC3908S125 |
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