AD9773-EB datasheet(6/60 Pages) AD

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AD9773

Rev. D | Page 6 of 60

DYNAMIC SPECIFICATIONS

TMIN to TMAX, AVDD = 3.3 V, CLKVDD = 3.3 V, DVDD = 3.3 V, PLLVDD = 0 V, IOUTFS = 20 mA, interpolation = 2×, 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%)

Output Rise Time (10% to 90%)1

0.8

Output Fall Time (10% to 90%)1

0.8

Output Noise (IOUTFS = 20 mA)

pA√Hz

AC LINEARITY—BASEBAND MODE

Spurious-Free Dynamic Range (SFDR) to Nyquist (fOUT = 0 dBFS)

fDATA = 100 MSPS, fOUT = 1 MHz

84.5

dBc

fDATA = 65 MSPS, fOUT = 1 MHz

dBc

fDATA = 65 MSPS, fOUT = 15 MHz

dBc

fDATA = 78 MSPS, fOUT = 1 MHz

dBc

fDATA = 78 MSPS, fOUT = 15 MHz

dBc

fDATA = 160 MSPS, fOUT = 1 MHz

dBc

fDATA = 160 MSPS, fOUT = 15 MHz

dBc

Spurious-Free Dynamic Range Within a 1 MHz Window

fOUT = 0 dBFS, fDATA = 100 MSPS, fOUT = 1 MHz

92.6

dBc

Two-Tone Intermodulation (IMD) to Nyquist (fOUT1 = fOUT2 = −6 dBFS)

fDATA = 65 MSPS, fOUT1 = 10 MHz; fOUT2 = 11 MHz

dBc

fDATA = 65 MSPS, fOUT1 = 20 MHz; fOUT2 = 21 MHz

dBc

fDATA = 78 MSPS, fOUT1 = 10 MHz; fOUT2 = 11 MHz

dBc

fDATA = 78 MSPS, fOUT1 = 20 MHz; fOUT2 = 21 MHz

dBc

fDATA = 160 MSPS, fOUT1 = 10 MHz; fOUT2 = 11 MHz

dBc

fDATA = 160 MSPS, fOUT1 = 20 MHz; fOUT2 = 21 MHz

dBc

Total Harmonic Distortion (THD)

fDATA = 100 MSPS, fOUT = 1 MHz; 0 dBFS

−70

−82.4

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)

WCDMA with 3.84 MHz BW, 5 MHz Channel Spacing

IF = Baseband, fDATA = 76.8 MSPS

dBc

IF = 19.2 MHz, fDATA = 76.8 MSPS

dBc

Four-Tone Intermodulation

21 MHz, 22 MHz, 23 MHz, and 24 MHz at −12 dBFS (fDATA = MSPS, Missing Center)

dBFS

AC LINEARITY—IF MODE

Four-Tone Intermodulation at IF = 200 MHz

201 MHz, 202 MHz, 203 MHz, and 204 MHz at −12 dBFS (fDATA = 160 MSPS, fDAC = 320 MHz)

dBFS

1 Measured single-ended into 50 Ω load.

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