AD9144-EBZ datasheet(19/126 Pages) AD

19 / 126 page

AD9144

Data Sheet

Rev. A | Page 18 of 125

–130

–135

–140

–145

–150

–155

–160

–165

–170

100

200

300

400

500

fOUT (MHz)

0dBFS

–6dBFS

–9dBFS

–12dBFS

Figure 16. Single-Tone NSD vs. fOUT over Digital Back Off,

fDAC = 983 MHz

–130

–135

–140

–145

–150

–155

–160

–165

–170

100

200

300

400

500

fOUT (MHz)

0dBFS

–6dBFS

–9dBFS

–12dBFS

Figure 17. Single-Tone NSD vs. fOUT over Digital Back Off,

fDAC = 1966 MHz

–130

–135

–140

–145

–150

–155

–160

–165

–170

100

200

300

400

500

fOUT (MHz)

PLL OFF

PLL ON

fDAC = 983MHz

fDAC = 1966MHz

Figure 18. Single-Tone NSD (0 dBFS) vs. fOUT,

fDAC = 983 MHz and 1966 MHz, PLL On and Off

fOUT = 30MHz

fOUT = 200MHz

fOUT = 400MHz

PLL: OFF

PLL: ON

OFFSET FREQUENCY (Hz)

–60

–80

–100

–120

–140

–160

–180

100

10k

100k

10M

OFFSET FREQUENCY (Hz)

Figure 19. Single-Tone Phase Noise vs. Offset Frequency over fOUT,

fDAC = 2.0 GHz, PLL On and Off

Figure 20. 1C WCDMA ACLR, fOUT = 30 MHz,

fDAC = 983 MHz, 2× Interpolation, PLL Frequency = 122 MHz

Figure 21. 1C WCDMA ACLR, fOUT = 122 MHz,

fDAC = 983 MHz, 2× Interpolation, PLL Frequency = 122 MHz

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