ADF4252BCP datasheet(9/28 Pages) AD

9 / 28 page

REV. B

ADF4252

–9–

*Across all fractional channel steps from f = 0/130 to f = 129/130.

RFOUT = 1.45 GHz, Int Reg = 55, Ref = 26 MHz, and LBW = 40 kHz. Plots attained using EVAL-ADF4252EB2 evaluation board.

FREQUENCY (GHz)

–70

–120

1.430

1.460

1.435

1.440

1.445

1.450

1.455

–75

–90

–105

–110

–115

–80

–85

–95

–100

LOWEST SPUR MODE

LOW NOISE AND SPUR MODE

LOWEST NOISE MODE

TPC 13. In-Band Phase Noise vs. Frequency*

FREQUENCY (GHz)

–10

–110

1.430

1.460

1.435

1.440

1.445

1.450

1.455

–20

–50

–80

–90

–100

–30

–40

–60

–70

LOWEST NOISE MODE

LOWEST SPUR MODE

TPC 14. 100 kHz Spur vs. Frequency*

FREQUENCY (GHz)

–20

–120

1.430

1.460

1.435

1.440

1.445

1.450

1.455

–30

–60

–90

–100

–110

–40

–50

–70

–80

LOWEST NOISE MODE

LOWEST SPUR MODE

TPC 15. 200 kHz Spur vs. Frequency*

FREQUENCY (GHz)

–20

–120

1.430

1.460

1.435

1.440

1.445

1.450

1.455

–30

–60

–90

–100

–110

–40

–50

–70

–80

LOWEST NOISE MODE

LOWEST SPUR MODE

TPC 16. 400 kHz Spur vs. Frequency*

FREQUENCY (GHz)

–20

–120

1.430

1.460

1.435

1.440

1.445

1.450

1.455

–30

–60

–90

–100

–110

–40

–50

–70

–80

LOWEST NOISE MODE

LOWEST SPUR MODE

TPC 17. 600 kHz Spur vs. Frequency*

FREQUENCY (GHz)

–20

–120

1.430

1.460

1.435

1.440

1.445

1.450

1.455

–30

–60

–90

–100

–110

–40

–50

–70

–80

LOWEST NOISE MODE

LOWEST SPUR MODE

TPC 18. 3 MHz Spur vs. Frequency*

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