AD9773AST datasheet(4/19 Pages) AD

4 / 19 page

AD9773–SPECIFICATIONS

PRELIMINARY TECHNICAL DATA

(TMIN to TMAX, AVDD = +3.3 V, CLKVDD = +3.3 V, DVDD = +3.3 V, PLLVDD = 0 V, IOUTFS = 20 mA,

Differential Transformer Coupled Output, 50

Ω Doubly Terminated, unless otherwise noted)

DYNAMIC SPECIFICATIONS

Parameter

Min

Typ

Max

Units

DYNAMICPERFORMANCE

MaximumDACOutputUpdateRate(fDAC)

400

MSPS

OutputSettlingTime(tST)(to0.025%)

OutputPropagationDelay

1(t

PD)

OutputRiseTime(10%to90%)

OutputFallTime(10%to90%)

Output Noise (IOUTFS = 20 mA)

√Hz

ACLINEARITY–BASEBANDMODE

Spurious-FreeDynamicRange(SFDR)toNyquist(fOUT=0dBFS)

fDATA =

MSPS; fOUT =

MHz

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

dBc

Two-ToneIntermodulation(IMD)toNyquist(fOUT1=fOUT2=–6dBFS)

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

fDATA =

MSPS; fOUT1 = MHz; fOUT2 =

MHz

dBc

TotalHarmonicDistortion(THD)

fDATA =

MSPS; fOUT =

MHz; 0 dBFS

fDATA =

MSPS; fOUT =

MHz; 0 dBFS

Signal-to-NoiseRatio(SNR)

fDATA =

MSPS; fOUT =

MHz; 0 dBFS

fDATA =

MSPS; fOUT =

MHz; 0 dBFS

AdjacentChannelPowerRatio(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-ToneIntermodulation

MHz,

MHz and

MHz at –12 dBFS

dBFS

(fDATA = MSPS, Missing Center)

ACLINEARITY–IFMODE

Four-Tone Intermodulation at IF =

MHz

MHz,

MHz and

MHz at

dBFS

fDATA =

MSPS, fDAC =

MHz

NOTES

1Propagation delay is delay from CLK input to DAC update.

2Measured single-ended into 50

Ωload.

Specifications subject to change without notice.

REV. PrA

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