AD9772A
Rev. C | Page 6 of 40
DYNAMIC SPECIFICATIONS
TMIN to TMAX, AVDD = 3.3 V, CLKVDD = 3.3 V, DVDD = 3.3 V, PLLVDD = 3.3 V, IOUTFS = 20 mA, differential transformer-coupled
output, 50 Ω doubly terminated, unless otherwise noted.
Table 2.
Parameter
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
Maximum DAC Output Update Rate (fDAC)
400
MSPS
Output Settling Time (tST) (to 0.025%)
11
ns
Output Propagation Delay1 (tPD) 17
ns
Output Rise Time (10% to 90%)
20.8
ns
Output Fall Time (10% to 90%)
0.8
ns
Output Noise (IOUTFS = 20 mA)
50
pA√Hz
AC LINEARITY—BASEBAND MODE
Spurious-Free Dynamic Range (SFDR) to Nyquist (fOUT = 0 dBFS)
fDATA = 65 MSPS; fOUT = 1.01 MHz
82
dBc
fDATA = 65 MSPS; fOUT = 10.01 MHz
75
dBc
fDATA = 65 MSPS; fOUT = 25.01 MHz
73
dBc
fDATA = 160 MSPS; fOUT = 5.02 MHz
82
dBc
fDATA = 160 MSPS; fOUT = 20.02 MHz
75
dBc
fDATA = 160 MSPS; fOUT = 50.02 MHz
65
dBc
Two-Tone Intermodulation (IMD) to Nyquist (fOUT1 = fOUT2 = 6 dBFS)
fDATA = 65 MSPS; fOUT1 = 5.01 MHz; fOUT2 = 6.01 MHz
85
dBc
fDATA = 65 MSPS; fOUT1 = 15.01 MHz; fOUT2 = 17.51 MHz
75
dBc
fDATA = 65 MSPS; fOUT1 = 24.1 MHz; fOUT2 = 26.2 MHz
68
dBc
fDATA = 160 MSPS; fOUT1 = 10.02 MHz; fOUT2 = 12.02 MHz
85
dBc
fDATA = 160 MSPS; fOUT1 = 30.02 MHz; fOUT2 = 35.02 MHz
70
dBc
fDATA = 160 MSPS; fOUT1 = 48.2 MHz; fOUT2 = 52.4 MHz
65
dBc
Total Harmonic Distortion (THD)
fDATA = 65 MSPS; fOUT = 1.0 MHz; 0 dBFS
80
dB
fDATA = 78 MSPS; fOUT = 10.01 MHz; 0 dBFS
74
dB
Signal-to-Noise Ratio (SNR)
fDATA = 65 MSPS; fOUT = 16.26 MHz; 0 dBFS
71
dB
fDATA = 100 MSPS; fOUT = 25.1 MHz; 0 dBFS
71
dB
Adjacent Channel Power Ratio (ACPR)
WCDMA with 4.1 MHz BW, 5 MHz Channel Spacing
IF = 16 MHz, fDATA = 65.536 MSPS
78
dBc
IF = 32 MHz, fDATA = 131.072 MSPS
68
dBc
Four-Tone Intermodulation
15.6 MHz, 15.8 MHz, 16.2 MHz, and 16.4 MHz at 12 dBFS
88
dBFS
fDATA = 65 MSPS, Missing Center
AC LINEARITY—IF MODE
Four-Tone Intermodulation at IF = 70 MHz
68.1 MHz, 69.3 MHz, 71.2 MHz, and 72.0 MHz at 20 dBFS
77
dBFS
fDATA = 52 MSPS, fDAC = 208 MHz
1 Propagation delay is delay from the CLK+/CLK input to the DAC update.
2 Measured single-ended into 50 Ω load.