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AD9784 Datasheet(PDF) 5 Page - Analog Devices |
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AD9784 Datasheet(HTML) 5 Page - Analog Devices |
5 / 52 page Preliminary Technical Data AD9784 Rev. PrC | Page 5 of 52 DYNAMIC SPECIFICATIONS Table 2. TMIN to TMAX, AVDD1, AVDD2 = 3.3 V, ACVDD, ADVDD, CLKVDD, DVDD, DRVDD = 2.5 V, IOUTFS = 20 mA, Differential Transformer Coupled Output, 50 Ω Doubly Terminated, unless otherwise noted Parameter Min Typ Max Unit DYNAMIC PERFORMANCE Maximum DAC Output Update Rate (fDAC) 500 MSPS Output Settling Time (tST) (to 0.025%) ns Output Propogation Delay5 (tPD) ns Output Rise Time (10%–90%)6 ns Output Fall Time (90%–10%)6 ns Output Noise (IOUTFS = 20 mA) pA√Hz AC LINEARITY—BASEBAND MODE Spurious-Free Dynamic Range (SFDR) to Nyquist (fOUT = 0 dBFS) fDATA = 160 MSPS; fOUT= 1 MHz 95 dBc fDATA = MSPS; fOUT = MHz dBc fDATA = MSPS; fOUT = MHz dBc fDATA = MSPS; fOUT = MHz dBc fDATA = MSPS; fOUT = MHz dBc fDATA = MSPS; fOUT = MHz Two-Tone Intermodulation (IMD) to Nyquist (fOUT1 = fOUT2 = –6 dBFS) fDATA = 160 MSPS; fOUT1 = 25 MHz; fOUT2 = 31 MHz 80 dBc fDATA = MSPS; fOUT1 = MHz; fOUT2 = MHz dBc fDATA = MSPS; fOUT1 = MHz; fOUT2 = MHz dBc fDATA = MSPS; fOUT1 = MHz; fOUT2 = MHz dBc fDATA = MSPS; fOUT1 = MHz; fOUT2 = MHz dBc fDATA = MSPS; fOUT1 = MHz; fOUT2 = MHz dBc Total Harmonic Distortion (THD) fDATA = MSPS; fOUT = MHz; 0 dBFS dB fDATA = MSPS; fOUT = MHz; 0 dBFS dB Signal-to-Noise Ratio (SNR) fDATA = MSPS; fOUT = MHz; 0 dBFS dBFS fDATA = MSPS; fOUT = MHz; 0 dBFS dBFS Adjacent Channel Power Ratio (ACPR) WCDMA with MHz BW, MHz Channel Spacing IF = 16 MHz, fDATA = 65.536 MSPS dBc IF = 32 MHz, fDATA = 131.072 MSPS dBc Four-Tone Intermodulation MHz, MHz, MHz and MHz at –12 dBFS (fDATA = MSPS, Missing Center) dBFS AC LINEARITY—IF MODE Four-Tone Intermodulation at IF = MHz MHz, MHz, MHz and MHz at dBFS dBFS fDATA = MSPS, fDAC = MHz 5 Propagation delay is delay from CLK input to DAC update. 6 Measured single-ended into 50 Ω load. |
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