3

CGH25120F Rev 3.1

Cree, Inc.

4600 Silicon Drive

Durham, North Carolina, USA 27703

USA Tel: +1.919.313.5300

Fax: +1.919.869.2733

www.cree.com/rf

Copyright © 2009-2015 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree and the Cree logo are

registered trademarks of Cree, Inc.

Typical Performance

Gain and Input Return Loss vs Frequency of CGH25120F in Broadband Amplifier Circuit

V

Typical Mobile WiMAX Digital Pre-Distortion (DPD) Performance

WiMAX Characteristics with and without DPD Correction

ACLR and Drain Efficiency vs Output Power

measured in CGH25120F-AMP Amplifier Circuit.

V

-10

-5

0

12

15

18

Sparameters of CGH25120F

-30

-25

-20

-15

0

3

6

9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

Frequency (GHz)

Gain

Return Loss

30

35

40

45

50

-40

-35

-30

-25

-20

CGH25120F WiMAX Transfer with and without DPD correction

Vds = 28V, Ids = 500 mA, Frequency = 2.5 GHz

UnCorrected -ACLR

UnCorrected +ACLR

Corrected -ACLR

Corrected +ACLR

UnCorrected Eff

Corrected Eff

0

5

10

15

20

25

-70

-65

-60

-55

-50

-45

15

20

25

30

35

40

45

Output Power (dBm)