AD9772EB datasheet(3/32 Pages) AD

3 / 32 page

REV. A

–3–

AD9772A

DYNAMIC SPECIFICATIONS

Parameter

Min

Typ

Max

Unit

DYNAMIC PERFORMANCE

Maximum DAC Output Update Rate (fDAC)

400

MSPS

Output Settling Time (tST) (to 0.025%)

Output Propagation Delay

1 (t

PD)17

Output Rise Time (10% to 90%)

0.8

Output Fall Time (10% to 90%)

0.8

Output Noise (IOUTFS = 20 mA)

√Hz

AC LINEARITY—BASEBAND MODE

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

fDATA = 65 MSPS; fOUT = 1.01 MHz

dBc

fDATA = 65 MSPS; fOUT = 10.01 MHz

dBc

fDATA = 65 MSPS; fOUT = 25.01 MHz

dBc

fDATA = 160 MSPS; fOUT = 5.02 MHz

dBc

fDATA = 160 MSPS; fOUT = 20.02 MHz

dBc

fDATA = 160 MSPS; fOUT = 50.02 MHz

dBc

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

fDATA = 65 MSPS; fOUT1 = 5.01 MHz; fOUT2 = 6.01 MHz

dBc

fDATA = 65 MSPS; fOUT1 = 15.01 MHz; fOUT2 = 17.51 MHz

dBc

fDATA = 65 MSPS; fOUT1 = 24.1 MHz; fOUT2 = 26.2 MHz

dBc

fDATA = 160 MSPS; fOUT1 = 10.02 MHz; fOUT2 = 12.02 MHz

dBc

fDATA = 160 MSPS; fOUT1 = 30.02 MHz; fOUT2 = 35.02 MHz

dBc

fDATA = 160 MSPS; fOUT1 = 48.2 MHz; fOUT2 = 52.4 MHz

dBc

Total Harmonic Distortion (THD)

fDATA = 65 MSPS; fOUT = 1.0 MHz; 0 dBFS

–80

fDATA = 78 MSPS; fOUT = 10.01 MHz; 0 dBFS

–74

Signal-to-Noise Ratio (SNR)

fDATA = 65 MSPS; fOUT = 16.26 MHz; 0 dBFS

fDATA = 100 MSPS; fOUT = 25.1 MHz; 0 dBFS

Adjacent Channel Power Ratio (ACPR)

WCDMA with 4.1 MHz BW, 5 MHz Channel Spacing

IF = 16 MHz, fDATA = 65.536 MSPS

dBc

IF = 32 MHz, fDATA = 131.072 MSPS

dBc

Four-Tone Intermodulation

15.6 MHz, 15.8 MHz, 16.2 MHz and 16.4 MHz at –12 dBFS

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

dBFS

fDATA = 52 MSPS, fDAC = 208 MHz

NOTES

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

2Measured single-ended into 50

Ω load.

Specifications subject to change without notice.

(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

doubly terminated, unless otherwise noted.)

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