AD9446 datasheet(21/36 Pages) AD

21 / 36 page

AD9446

Rev. 0 | Page 21 of 36

16000

OUTPUT CODE

11 40 315

426

SAMPLE SIZE = 65538

14000

12000

10000

8000

6000

4000

2000

1192

3424

7277

8376

4073

1458

11927

12619

14296

Figure 42. AD9446-100 Grounded Input Histogram

–140

040

FREQUENCY (MHz)

80MSPS

69.3MHz @ –7.0dBFS

70.3MHz @ –7.0dBFS

SFDR = 92dBc

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

–130

Figure 43. AD9446-80 64k Point Two-Tone FFT/80 MSPS/69.3 MHz, 70.3 MHz

–130

–100

FUNDAMENTAL LEVEL (dB)

–90

–80

–70

–60

–50

–40

–30

–20

–10

SFDR dBFS

SFDR dBc

WORST IMD3 dBc

WORST IMD3 dBFS

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

Figure 44. AD9446-80 Two-Tone SFDR vs. Analog Input Level 80 MSPS/

69.3 MHz, 70.3 MHz

18000

OUTPUT CODE

310

146

947

198

SAMPLE SIZE = 65538

16000

14000

12000

10000

8000

6000

4000

2000

3916

4393

10145

11027

17090

16450

1181

Figure 45. AD9446-80 Grounded Input Histogram

–0.8

–40

TEMPERATURE (°C)

–0.1

–0.2

–0.3

–0.4

–0.5

–0.6

–0.7

–20

Figure 46. AD9446-100 Gain vs. Temperature

400

SAMPLE RATE (MSPS)

140

350

300

250

200

150

100

120

DRVDD

AVDD2

AVDD1

Figure 47. AD9446-80 Power Supply Current vs. Sample Rate

10.3 MHz @ −1 dBFS

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