ADRF6720-27ACPZ-R7 datasheet(16/44 Pages) AD

16 / 44 page

Data Sheet

ADRF6720-27

Rev. B | Page 15 of 43

Figure 28. Integrated Phase Noise with Spurs vs. LO Frequency and

Temperature

Figure 29. Open-Loop VCO Phase Noise for VCO 0 Measured at 2302.24 MHz,

2578.49 MHz, and 2858.07 MHz (VCO ÷ 2)

Figure 30. Open-Loop VCO Phase Noise for VCO 2 Measured at 1750.79 MHz,

1880.53 MHz, and 2011.44 MHz (VCO ÷ 2)

Figure 31. VTUNE vs. VCO Frequency and Temperature

Figure 32. Open-Loop VCO Phase Noise for VCO 1 Measured at 2009.39 MHz,

2156.68 MHz, and 2303.74 MHz (VCO ÷ 2)

Figure 33. Open-Loop VCO Phase Noise for VCO 3 Measured at 1425.84 MHz,

1588.9 MHz, and 1750.85 MHz (VCO ÷ 2)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

LO FREQUENCY (MHz)

400

900

1400

1900

2400

TA = –40°C

TA = +25°C

TA = +85°C

–160

–140

–120

–100

–80

–60

–40

10k

100k

10M

100M

FREQUENCY (Hz)

2858.07MHz

2578.49MHz

2302.24MHz

–160

–140

–120

–100

–80

–60

–40

10k

100k

10M

100M

FREQUENCY (Hz)

2011.44MHz

1880.53MHz

1750.79MHz

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2.6

2.8

2800

3300

3800

4300

4800

5300

5800

VCO FREQUENCY (MHz)

–160

–140

–120

–100

–80

–60

–40

10k

100k

10M

100M

FREQUENCY (Hz)

2303.74MHz

2156.68MHz

2009.39MHz

–160

–140

–120

–100

–80

–60

–40

10k

100k

10M

100M

FREQUENCY (Hz)

1750.85MHz

1588.9MHz

1425.84MHz

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