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AD6674 Datasheet(PDF) 19 Page - Analog Devices |
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AD6674 Datasheet(HTML) 19 Page - Analog Devices |
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19 / 97 page ![]() AD6674 Data Sheet Rev. C | Page 18 of 96 AD6674-750 AVDD1 = 1.25 V, AVDD1_SR = 1.25 V, AVDD2 = 2.5 V, AVDD3 = 3.3 V, DVDD = 1.25 V, DRVDD = 1.25 V, SPIVDD = 1.8 V, AIN = −1.0 dBFS, VDR mode (no violation of VDR mask), clock divider = 2, otherwise default SPI settings, TA = 25°C, 128k FFT sample, unless otherwise noted. See Table 10 for recommended settings. FREQUENCY (MHz) –140 –120 –100 –80 –60 –40 –20 0 0375 300 225 150 75 350 275 200 125 50 325 250 175 100 25 AIN = −1dBFS SNR = 67.3dBFS ENOB = 10.7 BITS SFDR = 85dBFS BUFFER CONTROL 1 = 1.5× Figure 25. Single Tone FFT with fIN = 10.3 MHz FREQUENCY (MHz) –140 –120 –100 –80 –60 –40 –20 0 0375 300 225 150 75 350 275 200 125 50 325 250 175 100 25 AIN = −1dBFS SNR = 67.1dBFS ENOB = 10.7 BITS SFDR = 86dBFS BUFFER CONTROL 1 = 2.0× Figure 26. Single Tone FFT with fIN = 170.3 MHz FREQUENCY (MHz) –140 –120 –100 –80 –60 –40 –20 0 0375 300 225 150 75 350 275 200 125 50 325 250 175 100 25 AIN = −1dBFS SNR = 66.7dBFS ENOB = 10.6 BITS SFDR = 83dBFS BUFFER CONTROL 1 = 3.0× Figure 27. Single Tone FFT with fIN = 340.3 MHz FREQUENCY (MHz) –140 –120 –100 –80 –60 –40 –20 0 0375 300 225 150 75 350 275 200 125 50 325 250 175 100 25 AIN = −1dBFS SNR = 66.2dBFS ENOB = 10.5 BITS SFDR = 82dBFS BUFFER CONTROL 1 = 4.0× Figure 28. Single Tone FFT with fIN = 450.3 MHz FREQUENCY (MHz) –140 –120 –100 –80 –60 –40 –20 0 0375 300 225 150 75 350 275 200 125 50 325 250 175 100 25 AIN = −1dBFS SNR = 64.2dBFS ENOB = 10.3 BITS SFDR = 80dBFS BUFFER CONTROL 1 = 8.5× Figure 29. Single Tone FFT with fIN = 765.3 MHz FREQUENCY (MHz) –140 –120 –100 –80 –60 –40 –20 0 0375 300 225 150 75 350 275 200 125 50 325 250 175 100 25 AIN = −1dBFS SNR = 63.5dBFS ENOB = 10.2 BITS SFDR = 76dBFS BUFFER CONTROL 1 = 8.5× Figure 30. Single Tone FFT with fIN = 985.3 MHz |
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