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AD9775BSVZ Datasheet, PDF (6/56 Pages) Analog Devices – 14-Bit, 160 MSPS, 2×/4×/8× Interpolating Dual TxDAC+® Digital-to-Analog Converter | |||
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AD9775
DYNAMIC SPECIFICATIONS
TMIN to TMAX, AVDD = 3.3 V, CLKVDD = 3.3 V, DVDD = 3.3 V, PLLVDD = 0 V, IOUTFS = 20 mA, interpolation = 2Ã, differential
transformer-coupled output, 50 Ω doubly terminated, unless otherwise noted.
Table 2.
Parameter
DYNAMIC PERFORMANCE
Maximum DAC Output Update Rate (fDAC)
Output Settling Time (tST) to 0.025%
Output Rise Time 10% to 90%1
Output Fall Time 10% to 90%1
Output Noise, IOUTFS = 20 mA
AC LINEARITYâBASEBAND MODE
Spurious-Free Dynamic Range (SFDR) to Nyquist (fOUT = 0 dBFS)
fDATA = 100 MSPS, fOUT = 1 MHz
fDATA = 65 MSPS, fOUT = 1 MHz
fDATA = 65 MSPS, fOUT = 15 MHz
fDATA = 78 MSPS, fOUT = 1 MHz
fDATA = 78 MSPS, fOUT = 15 MHz
fDATA = 160 MSPS, fOUT = 1 MHz
fDATA = 160 MSPS, fOUT = 15 MHz
Spurious-Free Dynamic Range Within a 1 MHz Window
fOUT = 0 dBFS, fDATA = 100 MSPS, fOUT = 1 MHz
Two-Tone Intermodulation (IMD) to Nyquist (fOUT1 = fOUT2 = â6 dBFS)
fDATA = 65 MSPS, fOUT1 = 10 MHz; fOUT2 = 11 MHz
fDATA = 65 MSPS, fOUT1 = 20 MHz; fOUT2 = 21 MHz
fDATA = 78 MSPS, fOUT1 = 10 MHz; fOUT2 = 11 MHz
fDATA = 78 MSPS, fOUT1 = 20 MHz; fOUT2 = 21 MHz
fDATA = 160 MSPS, fOUT1 = 10 MHz; fOUT2 = 11 MHz
fDATA = 160 MSPS, fOUT1 = 20 MHz; fOUT2 = 21 MHz
Total Harmonic Distortion (THD)
fDATA = 100 MSPS, fOUT = 1 MHz; 0 dBFS
Signal-to-Noise Ratio (SNR)
fDATA = 78 MSPS, fOUT = 5 MHz; 0 dBFS
fDATA = 160 MSPS, fOUT = 5 MHz; 0 dBFS
Adjacent Channel Power Ratio (ACPR)
W-CDMA with 3.84 MHz BW, 5 MHz Channel Spacing
IF = Baseband, fDATA = 76.8 MSPS
IF = 19.2 MHz, fDATA = 76.8 MSPS
Four-Tone Intermodulation
21 MHz, 22 MHz, 23 MHz, and 24 MHz at â12 dBFS (fDATA = MSPS, Missing Center)
AC LINEARITYâIF MODE
Four-Tone Intermodulation at IF = 200 MHz
201 MHz, 202 MHz, 203 MHz, and 204 MHz at â12 dBFS (fDATA = 160 MSPS, fDAC = 320 MHz)
Min Typ Max Unit
400
11
0.8
0.8
50
MSPS
ns
ns
ns
pA/âHz
71 84.5
dBc
84
dBc
80
dBc
84
dBc
80
dBc
82
dBc
80
dBc
73 91.3
dBc
81
dBc
76
dBc
81
dBc
76
dBc
81
dBc
76
dBc
â71 â82.5
dB
76
dB
74
dB
71
dBc
71
dBc
75
dBFS
72
dBFS
1 Measured single-ended into 50 Ω load.
Rev. E | Page 6 of 56
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