AD9739-R2-EBZ datasheet(15/48 Pages) AD

15 / 48 page

Data Sheet

AD9739

Rev. B | Page 15 of 48

AC (MIX MODE)

fDAC = 2.4 GSPS, IOUTFS = 20 mA, nominal supplies, 25°C, unless otherwise noted.

VBW 10kHz

STOP 2.4GHz

SWEEP 28.7s (601pts)

START 20MHz

#RES BW 10kHz

Figure 25. Single-Tone Spectrum at fOUT = 2.31 GHz, fDAC = 2.4 GSPS

1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400

fOUT (MHz)

Figure 26. SFDR in Mix Mode vs. fOUT at 2.4 GSPS

VBW 300kHz

SPAN 53.84MHz

SWEEP 174.6ms (601pts)

CENTER 2.10706MHz

#RES VW 30kHz

RMS RESULTS

CARRIER POWER

–21.43dBm/

3.84MHz

FREQ

OFFSET

(MHz)

REF

(MHz)

3.84

(dBc)

–68.99

–72.09

–72.86

–74.34

–74.77

(dBm)

–90.43

–93.52

–94.30

–95.77

–96.20

LOWER

(dBc)

–63.94

–71.07

–71.34

–72.60

–73.26

(dBm)

–90.37

–92.50

–92.77

–94.03

–94.70

UPPER

Figure 27. Typical Single-Carrier WCDMA ACLR Performance at 2.1 GHz,

fDAC = 2457.6 MSPS (Second Nyquist Zone)

VBW 10kHz

STOP 2.4GHz

START 20MHz

STOP 2.4GHz

SWEEP 28.7s (601pts)

START 20MHz

#RES BW 10kHz

Figure 28. Single-Tone Spectrum in Mix Mode at fOUT = 1.31 GHz,

fDAC = 2.4 GSPS

1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400

fOUT (MHz)

Figure 29. IMD in Mix Mode vs. fOUT at 2.4 GSPS

–90

–85

–80

–75

–70

–65

–60

–55

–50

–45

–40

1229 1475 1720 1966 2212 2458 2703 2949 3195 3441 3686

SECOND NYQUIST ZONE

THIRD NYQUIST ZONE

FIRST ADJ CH

SECOND ADJ CH

FIFTH ADJ CH

fOUT (MHz)

Figure 30. Single-Carrier WCDMA ACLR vs. fOUT at 2457.6 MSPS

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