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AD9785-EBZ Datasheet(PDF) 5 Page - Analog Devices |
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AD9785-EBZ Datasheet(HTML) 5 Page - Analog Devices |
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5 / 64 page  AD9785/AD9787/AD9788 Rev. 0 | Page 5 of 64 Parameter Test Conditions/Comments Min Typ Max Unit LATENCY (DACCLK CYCLES) 1× Interpolation With or without modulation 40 Cycles 2× Interpolation With or without modulation 83 Cycles 4× Interpolation With or without modulation 155 Cycles 8× Interpolation With or without modulation 294 Cycles Inverse Sinc 18 Cycles POWER-UP TIME2 260 ms DAC Wake-Up Time3 IOUT current settling to 1% 22 ms DAC Sleep Time4 IOUT current to less than 1% of full scale 22 ms 1 Timing vs. temperature and data valid windows are delineated in Table 25. 2 Measured from SPI_CSB rising edge on Register 0x00; toggle Bit 4 from 0 to 1. VREF decoupling capacitor = 0.1 μF. 3 Measured from SPI_CSB rising edge on Register 0x05 or Register 0x07; toggle Bit 15 or Bit 14 from 0 to 1. 4 Measured from SPI_CSB rising edge on Register 0x05 or Register 0x07; toggle Bit 15 or Bit 14 from 1 to 0. AC SPECIFICATIONS TMIN to TMAX, AVDD33 = 3.3 V, DVDD33 = 3.3 V, DVDD18 = 1.8 V, CVDD18 = 1.8 V, IOUTFS = 20 mA, maximum sample rate, unless otherwise noted. Table 3. AD9785 AD9787 AD9788 Parameter Min Typ Max Min Typ Max Min Typ Max Unit SPURIOUS-FREE DYNAMIC RANGE (IN-BAND SFDR) fDACCLK = 200 MSPS, fOUT = 70 MHz 1× Interpolation 80 82 83 dBc fDACCLK = 200 MSPS, fOUT = 70 MHz 2× Interpolation 80 82 83 dBc fDACCLK = 200 MSPS, fOUT = 70 MHz 4× Interpolation 78 80 81 dBc fDACCLK = 800 MSPS, fOUT = 40 MHz 8× Interpolation 85 87 90 dBc TWO-TONE INTERMODULATION DISTORTION (IMD) fDATA = 200 MSPS, fOUT = 50 MHz 1× Interpolation 80 82 83 dBc fDATA = 200 MSPS, fOUT = 50 MHz 2× Interpolation 78 79 80 dBc fDATA = 200 MSPS, fOUT = 100 MHz 4× Interpolation 78 79 80 dBc fDATA = 100 MSPS, fOUT = 100 MHz 8× Interpolation 70 70 70 dBc NOISE SPECTRAL DENSITY (NSD), EIGHT TONE, 500 kHz TONE SPACING fDACCLK = 200 MSPS, fOUT = 80 MHz −154 −157 −158 dBm/Hz fDACCLK = 400 MSPS, fOUT = 80 MHz −154 −158 −161 dBm/Hz fDACCLK = 800 MSPS, fOUT = 80 MHz −154 −159 −162 dBm/Hz WCDMA ADJACENT CHANNEL LEAKAGE RATIO (ACLR), SINGLE CARRIER fDACCLK = 491.52 MSPS, fOUT = 100 MHz 4× Interpolation 78 80 82 dBc fDACCLK = 491.52 MSPS, fOUT = 200 MHz 4× Interpolation 72 74 76 dBc WCDMA SECOND ADJACENT CHANNEL LEAKAGE RATIO (ACLR), SINGLE CARRIER fDACCLK = 491.52 MSPS, fOUT = 100 MHz 4× Interpolation 80 82 88 dBc fDACCLK = 491.52 MSPS, fOUT = 200 MHz 4× Interpolation 78 80 82 dBc |
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