AD9775 datasheet(14/56 Pages) AD

14 / 56 page

AD9775

Rev. E | Page 14 of 56

405060

FREQUENCY (MHz)

Figure 18. Third-Order IMD Products vs. fOUT and Interpolation Rate,

1× fDATA = 160 MSPS, 2× fDATA = 160 MSPS, 4× fDATA = 80 MSPS,

8× fDATA = 50 MSPS

AOUT (dBFS)

–15

–5

–10

Figure 19. Third-Order IMD Products vs. AOUT and Interpolation Rate,

fDATA = 50 MSPS for All Cases, 1× fDAC = 50 MSPS, 2× fDAC = 100 MSPS,

4× fDAC = 200 MSPS, 8× fDAC = 400 MSPS

AVDD (V)

3.2

3.1

3.3

3.4

3.5

0dBFS

–12dBFS

–6dBFS

Figure 20. SFDR vs. AVDD @ fOUT = 10 MHz, fDAC = 320 MSPS, fDATA = 160 MSPS

AVDD (V)

3.2

3.1

3.3

3.4

3.5

0dBFS

–3dBFS

–6dBFS

Figure 21. Third-Order IMD Products vs. AVDD @ fOUT = 10 MHz,

fDAC = 320 MSPS, fDATA = 160 MSPS

INPUT DATA RATE (MSPS)

100

150

PLL OFF

PLL ON

Figure 22. SNR vs. Data Rate for fOUT = 5 MHz

TEMPERATURE (

°C)

–50

100

78MSPS

160MSPS

fDATA = 65MSPS

Figure 23. SFDR vs. Temperature @ fOUT = fDATA/11

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