SONY STR8656 Diagram

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Page 1

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PRELIMINARY

CGH40010

10 W, RF Power GaN HEMT

Cree’s CGH40010 is an unmatched, gallium nitride (GaN) high

electron mobility transistor (HEMT). The CGH40010, operating

from a 28 volt rail, offers a general purpose, broadband solution

to a variety of RF and microwave applications. GaN HEMTs offer

high efciency, high gain and wide bandwidth capabilities making

the CGH40010 ideal for linear and compressed amplier circuits.

The transistor is available in both screw-down, ange and solder-

down, pill packages.

FEATURES

Up to 4 GHz Operation

•

16 dB Small Signal Gain at 2.0 GHz

•

14 dB Small Signal Gain at 4.0 GHz

•

13 W typical P

•

65 % Efciency at P3dB

•

28 V Operation

•

3dB

APPLICATIONS

•

Package Types: 440166, & 440196

PN’s: CGH40010F & CGH40010P

2-Way Private Radio

Broadband Ampliers

Cellular Infrastructure

Test Instrumentation

Class A, AB, Linear ampliers suitable

for OFDM, W-CDMA, EDGE, CDMA

waveforms

0 0 2

i r

p A

–

. 1

e R

Page 2

Absolute Maximum Ratings (not simultaneous) at 25˚C Case Temperature

Parameter Symbol Rating Units

Drain-Source Voltage V

Gate-to-Source Voltage V

Storage Temperature T

Operating Junction Temperature T

Maximum Forward Gate Current I

Soldering Temperature T

Thermal Resistance, Junction to

Case

Note:

Measured for the CGH40010F at P

= 14 W.

DISS

GMAX

DSS

STG

θJC

84 Volts

-10, +2 Volts

-55, +150 ˚C

175 ˚C

4.0 mA

245 ˚C

5.0 ˚C/W

Electrical Characteristics (TC = 25˚C)

Characteristics Symbol Min. Typ. Max. Units Conditions

DC Characteristics

Gate Threshold Voltage V

Gate Quiescent Voltage V

Saturated Drain Current I

Drain-Source Breakdown Voltage V

Case Operating Temperature T

Screw Torque T – – 60 in-oz Reference 440166 Package Revision 3

RF Characteristics (TC = 25˚C, F0 = 3.7 GHz unless otherwise noted)

Small Signal Gain G

Power Output at 3 dB Compression

Drain Efciency

Output Mismatch Stress VSWR – TBD –

Dynamic Characteristics

Input Capacitance C

Output Capacitance C

Feedback Capacitance C

Notes:

Drain Efciency = P

When tuned for best efciency (see the applications chart in this data sheet).

When tuned for best P

Measured on wafer prior to packaging.

GS(th)

GS(Q)

3dB

1,2

-3.0 -2.5 -1.8 VDC VDS = 10 V, ID = 3.6 mA

– -2.0 – VDC VDS = 28 V, ID = 200 mA

2.4 2.7 – A VDS = 6.0 V, VGS = 2.0 V

84 100 – VDC VGS = -8 V, ID = 3.6 mA

-10 – +105 ˚C

13.5 14.5 – dB VDD = 28 V, IDQ = 200 mA

10 12.5 – W VDD = 28 V, IDQ = 200 mA

55 65 – % VDD = 28 V, IDQ = 200 mA, P

3dB

No damage at all phase angles,

/ P

OUT

(see the applications chart in this data sheet).

1dB

– 5.00 – pF VDS = 28 V, Vgs = -8 V, f = 1 MHz

– 1.32 – pF VDS = 28 V, Vgs = -8 V, f = 1 MHz

– 0.43 – pF VDS = 28 V, Vgs = -8 V, f = 1 MHz

VDD = 28 V, IDQ = 200 mA, P

= 12 W CW

OUT

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

Fax: +1.919.313.5778

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Page 3

Typical Performance

26 28 30 32 34 36 38 40 42

Pout (dBm)

Gain (dB)

(Drain Efficiency) (%)

23 25 27 29 31 33 35 37 39 41 43

Pout (dBm)

Gain (dB)

(Drain Efficiency) (%)

Swept CW Data of CGH40010F vs. Output Power with Source

and Load Impedances Optimized for Drain Efciency at 2.0 GHz

VDD = 28 V, IDQ = 200 mA, Freq = 2.0 GHz

Swept CW Data of CGH40010F vs. Output Power with Source

and Load Impedances Optimized for Drain Efciency at 3.6 GHz

VDD = 28 V, IDQ = 200 mA, Freq = 3.6 GHz

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

Fax: +1.919.313.5778

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Page 4

Typical Performance

23 25 27 29 31 33 35 37 39 41 43

Pout (dBm)

Gain (dB)

(Drain Efficiency) (%)

0.5 1.5 2.5 3.5 4.5 Frequency (GHz)

0.375

0.75

1.13

1.5

Swept CW Data of CGH40010F vs. Output Power with Source

and Load Impedances Optimized for P1 Power at 3.6 GHz

VDD = 28 V, IDQ = 200 mA, Freq = 3.6 GHz

Simulated Maximum Stable Gain, Maximum Available

Gain and K Factor of the CGH40010F

VDD = 28 V, IDQ = 200 mA

MSG, MAG (dB)

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CGH40010 Rev 1.4 Preliminary

K Factor

Cree, Inc.

4600 Silicon Drive

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Page 5

Source and Load Impedances

Z Source Z Load

0 25 50 75 100 125 150 175 200

Maximum Case Temperature (°C)

Power Dissipation (W)

Frequency (MHz) Z Source Z Load

500 13.1 + j17 15.6 + j13.4 1000 9.2 + j10.7 12.96 + j8.25 1500 6.4 + j3.9 8.78 + j3.9

2500 4.0 – j4.0 6.37 – j0.1

3500 3.8 – j10.4 5.45 – j5.1

Note 1. VDD = 28V, IDQ = 200mA in the 440166 package. Note 2. Optimized for P

1dB

CGH40010 Power Dissipation De-rating Curve

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

Fax: +1.919.313.5778

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Page 6

CGH40010-TB Demonstration Amplier Circuit Schematic

CGH40010-TB

3-000537 REV 2

CGH40010-TB Demonstration Amplier Circuit Outline

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

Fax: +1.919.313.5778

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Page 7

CGH40010-TB Demonstration Amplier Circuit Bill of Materials

Designator Description Qty

R1,R2 RES,1/16W,0603,1%,0 OHMS 1

R3 RES,1/16W,0603,1%,47 OHMS 1

R4 RES,1/16W,0603,1%,100 OHMS 1

C6 CAP, 470PF, 5%,100V, 0603 1

C17 CAP, 33 UF, 20%, G CASE 1

C16 CAP, 1.0UF, 100V, 10%, X7R, 1210 1

C8 CAP 10UF 16V TANTALUM 1

C14 CAP, 100.0pF, +/-5%, 0603 1

C1 CAP, 0.5pF, +/-0.05pF, 0603 1 C2 CAP, 0.7pF, +/-0.1pF, 0603 1

C10,C11 CAP, 1.0pF, +/-0.1pF, 0603 2

C4,C12 CAP, 10.0pF,+/-5%, 0603 2 C5,C13 CAP, 39pF, +/-5%, 0603 2

C7,C15 CAP,33000PF, 0805,100V, X7R 2

J3,J4 CONN SMA STR PANEL JACK RECP 1

J2 HEADER RT>PLZ.1CEN LK 2 POS 1

J1 HEADER RT>PLZ .1CEN LK 5POS 1

Q1 CGH40010F or CGH40010P 1

CGH40010F-TB Demonstration Amplier Circuit

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

Fax: +1.919.313.5778

www.cree.com/wireless

Page 8

Typical Package S-Parameters for CGH40010F (Small Signal, VDS = 28 V, IDQ = 100 mA, angle in degrees)

Frequency Mag S11 Ang S11 Mag S21 Ang S21 Mag S12 Ang S12 Mag S22 Ang S22

500 MHz 0.8785 -143.68 12.55 101.09 0.0373 14.45 0.5687 -156.56 600 MHz 0.8740 -151.05 10.64 96.46 0.0380 10.48 0.5767 -161.57 700 MHz 0.8711 -156.75 9.22 92.62 0.0384 7.32 0.5817 -165.41 800 MHz 0.8690 -161.33 8.14 89.31 0.0386 4.68 0.5850 -168.51 900 MHz 0.8675 -165.16 7.27 86.35 0.0388 2.40 0.5872 -171.09

1.0 GHz 0.8664 -168.44 6.58 83.65 0.0390 0.38 0.5888 -173.31

1.1 GHz 0.8655 -171.33 6.00 81.14 0.0391 -1.46 0.5900 -175.27

1.2 GHz 0.8647 -173.91 5.52 78.77 0.0392 -3.15 0.5909 -177.04

1.3 GHz 0.8641 -176.25 5.12 76.51 0.0392 -4.73 0.5915 -178.65

1.4 GHz 0.8635 -178.42 4.77 74.33 0.0393 -6.23 0.5920 179.86

1.5 GHz 0.8630 179.56 4.46 72.22 0.0394 -7.65 0.5923 178.46

1.6 GHz 0.8625 177.66 4.20 70.17 0.0394 -9.02 0.5926 177.14

1.7 GHz 0.8620 175.86 3.96 68.15 0.0395 -10.35 0.5927 175.87

1.8 GHz 0.8615 174.13 3.75 66.18 0.0395 -11.63 0.5928 174.65

1.9 GHz 0.8610 172.47 3.57 64.23 0.0395 -12.89 0.5928 173.48

2.0 GHz 0.8606 170.86 3.40 62.31 0.0396 -14.11 0.5928 172.33

2.1 GHz 0.8601 169.29 3.25 60.41 0.0396 -15.32 0.5927 171.21

2.2 GHz 0.8597 167.76 3.11 58.53 0.0397 -16.50 0.5925 170.11

2.3 GHz 0.8592 166.26 2.99 56.66 0.0397 -17.67 0.5924 169.02

2.4 GHz 0.8587 164.79 2.87 54.80 0.0397 -18.83 0.5922 167.95

2.5 GHz 0.8582 163.33 2.77 52.94 0.0398 -19.97 0.5919 166.89

2.6 GHz 0.8577 161.89 2.67 51.10 0.0398 -21.10 0.5916 165.83

2.7 GHz 0.8571 160.46 2.58 49.26 0.0399 -22.23 0.5913 164.78

2.8 GHz 0.8566 159.04 2.50 47.42 0.0399 -23.35 0.5909 163.72

2.9 GHz 0.8560 157.62 2.42 45.58 0.0400 -24.46 0.5905 162.67

3.0 GHz 0.8555 156.21 2.35 43.74 0.0400 -25.57 0.5901 161.62

3.1 GHz 0.8549 154.80 2.29 41.91 0.0401 -26.68 0.5896 160.56

3.2 GHz 0.8542 153.38 2.23 40.07 0.0401 -27.79 0.5891 159.49

3.3 GHz 0.8536 151.97 2.17 38.23 0.0402 -28.89 0.5886 158.42

3.4 GHz 0.8529 150.54 2.12 36.38 0.0402 -29.99 0.5880 157.34

3.5 GHz 0.8523 149.11 2.07 34.53 0.0403 -31.10 0.5873 156.25

3.6 GHz 0.8516 147.68 2.02 32.68 0.0403 -32.20 0.5867 155.15

3.7 GHz 0.8508 146.23 1.98 30.81 0.0404 -33.31 0.5859 154.04

3.8 GHz 0.8501 144.77 1.94 28.95 0.0405 -34.41 0.5852 152.91

3.9 GHz 0.8493 143.30 1.90 27.07 0.0406 -35.52 0.5844 151.77

4.0 GHz 0.8486 141.81 1.86 25.18 0.0406 -36.64 0.5835 150.61

4.1 GHz 0.8478 140.31 1.83 23.29 0.0407 -37.76 0.5827 149.44

4.2 GHz 0.8469 138.79 1.79 21.38 0.0408 -38.88 0.5817 148.25

4.3 GHz 0.8461 137.25 1.76 19.46 0.0409 -40.01 0.5808 147.04

4.4 GHz 0.8452 135.70 1.73 17.53 0.0409 -41.15 0.5797 145.80

4.5 GHz 0.8443 134.12 1.71 15.59 0.0410 -42.29 0.5787 144.55

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

Fax: +1.919.313.5778

www.cree.com/wireless

Page 9

Typical Package S-Parameters for CGH40010F (Small Signal, VDS = 28 V, IDQ = 200 mA, angle in degrees)

Frequency Mag S11 Ang S11 Mag S21 Ang S21 Mag S12 Ang S12 Mag S22 Ang S22

500 MHz 0.884 -147.00 13.01 100.05 0.0316 14.05 0.6169 -163.03 600 MHz 0.881 -153.95 11.01 95.70 0.0320 10.50 0.6254 -167.20 700 MHz 0.878 -159.32 9.53 92.09 0.0323 7.70 0.6306 -170.47 800 MHz 0.877 -163.65 8.40 88.98 0.0326 5.39 0.6339 -173.14 900 MHz 0.875 -167.27 7.51 86.20 0.0327 3.41 0.6361 -175.43

1.0 GHz 0.874 -170.38 6.79 83.66 0.0328 1.67 0.6376 -177.42

1.1 GHz 0.873 -173.13 6.20 81.29 0.0329 0.11 0.6386 -179.22

1.2 GHz 0.873 -175.60 5.70 79.06 0.0330 -1.32 0.6393 179.14

1.3 GHz 0.872 -177.85 5.28 76.92 0.0331 -2.65 0.6397 177.62

1.4 GHz 0.872 -179.93 4.92 74.86 0.0332 -3.91 0.6398 176.19

1.5 GHz 0.871 178.12 4.61 72.86 0.0333 -5.10 0.6399 174.83

1.6 GHz 0.871 176.27 4.33 70.91 0.0334 -6.24 0.6398 173.53

1.7 GHz 0.870 174.52 4.09 69.00 0.0334 -7.33 0.6396 172.27

1.8 GHz 0.870 172.83 3.88 67.12 0.0335 -8.40 0.6393 171.05

1.9 GHz 0.869 171.21 3.69 65.27 0.0336 -9.43 0.6389 169.86

2.0 GHz 0.868 169.63 3.51 63.43 0.0337 -10.45 0.6385 168.70

2.1 GHz 0.868 168.09 3.36 61.62 0.0338 -11.44 0.6379 167.55

2.2 GHz 0.867 166.59 3.22 59.82 0.0339 -12.42 0.6374 166.42

2.3 GHz 0.867 165.11 3.09 58.03 0.0339 -13.39 0.6367 165.29

2.4 GHz 0.866 163.65 2.98 56.25 0.0340 -14.35 0.6360 164.18

2.5 GHz 0.866 162.21 2.87 54.47 0.0341 -15.30 0.6353 163.07

2.6 GHz 0.865 160.78 2.77 52.70 0.0342 -16.24 0.6345 161.97

2.7 GHz 0.864 159.36 2.68 50.93 0.0343 -17.18 0.6336 160.87

2.8 GHz 0.864 157.95 2.60 49.16 0.0345 -18.11 0.6327 159.76

2.9 GHz 0.863 156.54 2.52 47.39 0.0346 -19.05 0.6318 158.66

3.0 GHz 0.862 155.13 2.45 45.62 0.0347 -19.98 0.6308 157.55

3.1 GHz 0.862 153.73 2.38 43.84 0.0348 -20.91 0.6297 156.43

3.2 GHz 0.861 152.32 2.32 42.06 0.0349 -21.84 0.6286 155.31

3.3 GHz 0.860 150.91 2.26 40.28 0.0351 -22.78 0.6275 154.18

3.4 GHz 0.859 149.49 2.21 38.49 0.0352 -23.72 0.6263 153.04

3.5 GHz 0.859 148.06 2.16 36.70 0.0354 -24.66 0.6250 151.89

3.6 GHz 0.858 146.63 2.11 34.90 0.0355 -25.61 0.6237 150.73

3.7 GHz 0.857 145.18 2.07 33.09 0.0357 -26.56 0.6224 149.55

3.8 GHz 0.856 143.72 2.02 31.27 0.0358 -27.52 0.6210 148.37

3.9 GHz 0.855 142.25 1.98 29.44 0.0360 -28.48 0.6195 147.16

4.0 GHz 0.854 140.76 1.95 27.59 0.0361 -29.46 0.6181 145.94

4.1 GHz 0.853 139.26 1.91 25.74 0.0363 -30.44 0.6165 144.71

4.2 GHz 0.852 137.74 1.88 23.88 0.0365 -31.43 0.6150 143.46

4.3 GHz 0.851 136.20 1.85 22.00 0.0367 -32.44 0.6133 142.18

4.4 GHz 0.850 134.65 1.82 20.11 0.0369 -33.45 0.6117 140.89

4.5 GHz 0.849 133.07 1.79 18.21 0.0371 -34.47 0.6100 139.58

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

Fax: +1.919.313.5778

www.cree.com/wireless

Page 10

Typical Package S-Parameters for CGH40010F (Small Signal, VDS = 28 V, IDQ = 500 mA, angle in degrees)

Frequency Mag S11 Ang S11 Mag S21 Ang S21 Mag S12 Ang S12 Mag S22 Ang S22

500 MHz 0.8907 -150.63 13.47 98.92 0.0258 13.90 0.6803 -168.90 600 MHz 0.8877 -157.10 11.37 94.88 0.0261 10.86 0.6882 -172.30 700 MHz 0.8858 -162.09 9.83 91.55 0.0264 8.52 0.6930 -175.03 800 MHz 0.8844 -166.13 8.66 88.67 0.0265 6.63 0.6960 -177.33 900 MHz 0.8834 -169.52 7.73 86.09 0.0267 5.05 0.6980 -179.33

1.0 GHz 0.8825 -172.46 6.99 83.72 0.0268 3.68 0.6992 178.87

1.1 GHz 0.8818 -175.05 6.38 81.52 0.0269 2.47 0.7000 177.23

1.2 GHz 0.8812 -177.40 5.87 79.43 0.0270 1.37 0.7004 175.70

1.3 GHz 0.8806 -179.54 5.44 77.43 0.0271 0.37 0.7006 174.26

1.4 GHz 0.8801 178.46 5.07 75.51 0.0272 -0.57 0.7006 172.89

1.5 GHz 0.8795 176.58 4.74 73.63 0.0274 -1.45 0.7004 171.56

1.6 GHz 0.8790 174.80 4.46 71.81 0.0275 -2.29 0.7001 170.28

1.7 GHz 0.8785 173.10 4.22 70.01 0.0276 -3.10 0.6996 169.03

1.8 GHz 0.8779 171.47 4.00 68.24 0.0277 -3.88 0.6991 167.81

1.9 GHz 0.8774 169.88 3.80 66.50 0.0278 -4.64 0.6984 166.61

2.0 GHz 0.8768 168.34 3.63 64.77 0.0280 -5.38 0.6977 165.42

2.1 GHz 0.8762 166.83 3.47 63.06 0.0281 -6.11 0.6969 164.24

2.2 GHz 0.8756 165.35 3.33 61.36 0.0283 -6.83 0.6961 163.07

2.3 GHz 0.8750 163.89 3.20 59.66 0.0284 -7.55 0.6952 161.91

2.4 GHz 0.8743 162.45 3.08 57.97 0.0286 -8.26 0.6942 160.75

2.5 GHz 0.8737 161.03 2.97 56.28 0.0288 -8.96 0.6931 159.60

2.6 GHz 0.8730 159.62 2.87 54.60 0.0289 -9.67 0.6920 158.44

2.7 GHz 0.8723 158.21 2.78 52.92 0.0291 -10.38 0.6908 157.28

2.8 GHz 0.8715 156.81 2.69 51.23 0.0293 -11.10 0.6896 156.12

2.9 GHz 0.8708 155.41 2.61 49.54 0.0295 -11.81 0.6883 154.95

3.0 GHz 0.8700 154.01 2.54 47.85 0.0297 -12.54 0.6869 153.78

3.1 GHz 0.8692 152.61 2.47 46.15 0.0299 -13.27 0.6855 152.60

3.2 GHz 0.8683 151.21 2.41 44.45 0.0301 -14.00 0.6840 151.41

3.3 GHz 0.8674 149.80 2.35 42.74 0.0304 -14.75 0.6825 150.21

3.4 GHz 0.8665 148.38 2.30 41.02 0.0306 -15.51 0.6809 149.00

3.5 GHz 0.8656 146.96 2.25 39.30 0.0309 -16.27 0.6793 147.78

3.6 GHz 0.8647 145.53 2.20 37.56 0.0311 -17.06 0.6776 146.54

3.7 GHz 0.8637 144.08 2.15 35.81 0.0314 -17.85 0.6758 145.29

3.8 GHz 0.8627 142.62 2.11 34.06 0.0316 -18.65 0.6740 144.03

3.9 GHz 0.8617 141.15 2.07 32.29 0.0319 -19.47 0.6722 142.75

4.0 GHz 0.8606 139.66 2.04 30.50 0.0322 -20.31 0.6703 141.46

4.1 GHz 0.8595 138.16 2.00 28.71 0.0325 -21.16 0.6683 140.14

4.2 GHz 0.8584 136.63 1.97 26.90 0.0328 -22.03 0.6663 138.81

4.3 GHz 0.8573 135.09 1.94 25.07 0.0331 -22.92 0.6643 137.46

4.4 GHz 0.8562 133.53 1.91 23.23 0.0334 -23.82 0.6622 136.09

4.5 GHz 0.8550 131.95 1.88 21.38 0.0338 -24.75 0.6600 134.69

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

Cree, Inc.

4600 Silicon Drive

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USA Tel: +1.919.313.5300

Fax: +1.919.313.5778

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Page 11

Product Dimensions CGH40010F (Package Type — 440166)

PRELIMINARY

Product Dimensions CGH40010P (Package Type — 440196)

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

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4600 Silicon Drive

Durham, NC 27703

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Fax: +1.919.313.5778

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Page 12

Disclaimer

Specications are subject to change without notice. Cree, Inc. believes the information contained within this data sheet

to be accurate and reliable. However, no responsibility is assumed by Cree for any infringement of patents or other

rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent

or patent rights of Cree. Cree makes no warranty, representation or guarantee regarding the suitability of its products

for any particular purpose. “Typical” parameters are the average values expected by Cree in large quantities and are

provided for information purposes only. These values can and do vary in different applications and actual performance

can vary over time. All operating parameters should be validated by customer’s technical experts for each application.

Cree products are not designed, intended or authorized for use as components in applications intended for surgical

implant into the body or to support or sustain life, in applications in which the failure of the Cree product could result

in personal injury or death or in applications for planning, construction, maintenance or direct operation of a nuclear

facility.

For more information, please contact:

Cree, Inc. 4600 Silicon Drive Durham, NC 27703

www.cree.com/wireless

Ryan Baker Marketing

Cree, Wireless Devices

919.287.7816

Tom Dekker

Sales Director Cree, Wireless Devices

919.313.5639

the Cree logo are registered trademarks of Cree, Inc.

CGH40010 Rev 1.4 Preliminary

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

Fax: +1.919.313.5778

www.cree.com/wireless