Page 1
3236 Scott Boulevard Santa Clara, California 95054 Phone: (408) 986-5060 Fax: (408) 986-5095
CFK2162-P3
Features
❏ High Gain
❏ +34 dBm Power Output
❏ Proprietary Power FET Process
❏ >45% Linear Power Added Efficiency
❏ +29 dBm with 30 dBc Third Order Products
❏ Surface Mount SO-8 Power Package
Applications
❏ PCS/PCN Base Stations and Terminals
❏ Wireless Local Loop
Description
The CFK2162-P3 is a high-gain FET intended for driver amplifier applications in high-power systems, and output
stage usage in medium power applications at power levels up to
+34 dBm. The device is easily matched and provides excellent
linearity at 2 Watts. Manufactured in Celeritek’s proprietary
power FET process, this device is assembled in an industry
standard surface mount SO-8 power package that is compatible
with high volume, automated board assembly techniques.
1.8 to 2.0 GHz
+34 dBm Power GaAs FET
Product Specifications
July 1997
(1 of 4)
13478652GGD
D
Back Plane
is Source
GND
GND
GND
GND
Package Diagram
Notes:
1. Sum to two tones with 1 MHz spacing = 29 dBm.
2. See thermal considerations information on page 4.
3.
Max (+Vd) and (-Vg) under linear operation. Max potential difference
across the device in RF compression (2Vd+ |-Vg|) not to exceed the minimum breakdown voltage (Vbr) of +18V.
Absolute Maximum Ratings
Parameter Symbol Rating
Drain-Source Voltage V
DS
12V
(3)
Gate-Source Voltage V
GS
-5V
Drain Current I
DS
Idss
Continuous Dissipation P
T
10W
Channel Temperature T
CH
175°C
Storage Temperature T
STG
-65°C to +175°C
Parameters Conditions Min Typ Max Units
Vd= 8V, Id= 800 mA (Quiescent)
P
-1dB
33.0 34.0 — dBm
SSG 13.0 14.0 — dB
3rd Order
Products
(1)
26 30 — dBc
Efficiency @ P1dB — 43 — %
Vd= 5V, Id= 350 mA (Quiescent)
P
-1dB
— 30.0 — dBm
SSG — 11.0 — dB
Vd= 5V, Id= 1200 mA (Quiescent)
P
-1dB
— 32.5 — dBm
SSG — 12.0 — dB
Specifications (TA= 25°C) The following specifications are
guaranteed at room temperature in Celeritek test fixture at 1.95 GHz.
Parameters Conditions Min Typ Max Units
g
m
Vds = 2.0V, Vgs = 0V — 1700 — mS
I
dss
Vds = 2.0V, Vgs = 0V — 2.8 — A
V
p
Vds = 3.0V, Ids = 65 mA — -1.8 Volts
BV
GD
(3) Igd = 6.5 mA 18 20 — Volts
ΘJL(2) @150°C TCH — 10 — °C/W
SO-8 Power Package Physical Dimensions
Page 2
3236 Scott Boulevard, Santa Clara, California 95054
Phone: (408) 986-5060 Fax: (408) 986-5095
CFK2162-P3
Product Specifications - July 1997
(2 of 4)
RF Match Data shown in the performance graphs was taken
in the test circuits shown at right and on page 3. Layout is
important for proper operation. Phase length of input and output 50Ω line varies as a function of exact desired frequency
of operation. Output shunt inductor effects output performance. Celeritek recommends the use of a high impedance
printed inductor Lambda/4 in length. Please contact the factory for an evaluation board and/or more detailed application
support.
Typical Scattering Parameters (TA= 25°C, Vds = 5 V, Ids = 350 mA)
Frequency S
11
S
21
S
12
S
22
(GHz) Mag Ang Mag Ang Mag Ang Mag Ang
0.6 0.946 -162.45 4.973 86.73 0.017 11.14 0.739 172.95
1.0 0.946 -176.06 2.885 73.75 0.018 9.37 0.748 169.73
1.1 0.946 -177.58 2.623 71.82 0.018 6.8 0.747 169.56
1.2 0.945 -178.58 2.424 69.66 0.019 6.59 0.746 169.16
1.3 0.944 -179.55 2.27 67.7 0.019 6.53 0.742 168.8
1.4 0.942 179.53 2.154 65.68 0.02 7.04 0.739 168.03
1.5 0.938 178.31 2.055 63.25 0.02 4.93 0.73 167.15
1.6 0.935 176.89 1.982 60.53 0.021 4.08 0.722 165.76
1.7 0.931 174.99 1.923 57.74 0.023 3.37 0.714 164.09
1.8 0.927 172.61 1.873 54.47 0.023 1.6 0.707 161.84
1.9 0.922 169.71 1.828 50.82 0.023 -0.79 0.70 158.98
2.0 0.918 166.09 1.777 46.63 0.025 -1.23 0.694 155.54
2.1 0.914 161.9 1.722 42.23 0.024 -4.64 0.69 151.93
2.2 0.912 157.79 1.664 37.59 0.026 -9.26 0.689 148.15
3.0 0.941 132.34 1.033 10.11 0.022 -27.73 0.76 128.69
3.5 0.957 134.66 0.803 6.12 0.02 -21.78 0.787 132.92
4.0 0.94 138.76 0.803 1.66 0.023 -20.57 0.74 136.51
(TA = 25°C, Vds = 5 V, Ids = 1200 mA)
0.6 0.95 -165 5.311 84.94 0.014 13.61 0.747 17.19
1.0 0.951 -177.94 3.044 72.23 0.014 14.39 0.749 168.92
1.3 0.951 178.92 2.391 66.48 0.015 13.62 0.741 167.98
1.4 0.949 177.92 2.272 64.41 0.015 14.21 0.734 167.24
1.5 0.946 176.83 2.169 61.99 0.016 14.13 0.728 166.28
1.6 0.943 175.5 2.09 59.58 0.017 12.30 0.72 165.01
1.7 0.939 173.67 2.029 56.57 0.017 12.06 0.712 163.24
1.8 0.935 171.39 1.98 53.44 0.018 10.27 0.703 161.07
1.9 0.931 168.6 1.93 49.72 0.019 5.75 0.696 158.27
2.0 0.929 165.15 1.88 45.76 0.02 7.43 0.69 154.9
2.1 0.925 161.29 1.822 41.44 0.02 4.37 0.686 151.32
2.2 0.924 157.02 1.757 36.86 0.021 2.36 0.687 147.44
3.0 0.947 131.72 1.09 9.25 0.018 -17.77 0.757 127.79
3.5 0.961 133.41 0.853 4.59 0.017 -13.03 0.779 131.26
4.0 0.945 137.83 0.85 0.36 0.021 -8.72 0.73 134.73
(TA = 25°C, Vds = 8 V, Ids = 800 mA)
0.6 0.941 -164.65 5.654 83.55 0.015 10.74 0.676 174.61
1.0 0.947 -177.32 3.25 70.11 0.015 8.2 0.688 171.96
1.3 0.945 179.49 2.535 63.48 0.015 7.84 0.684 171.67
1.4 0.944 178.52 2.397 61.32 0.016 8.5 0.68 171.06
1.5 0.941 177.34 2.85 58.65 0.016 9.62 0.674 170.41
1.6 0.939 175.87 2.192 55.97 0.017 5.99 0.666 169.31
1.7 0.934 174.02 2.123 52.85 0.017 6.55 0.658 167.71
1.8 0.93 171.59 2.058 49.6 0.018 6.89 0.652 165.68
1.9 0.927 168.63 2.006 45.54 0.019 3.81 0.644 163.07
2.0 0.923 165.04 1.990 41.52 0.019 -1.07 0.639 159.85
2.1 0.919 160.94 1.885 36.76 0.02 -1.68 0.635 156.23
2.2 0.917 156.65 1.714 32.35 0.02 -2.32 0.636 152.38
3.0 0.944 131.73 1.116 3.58 0.018 -21.43 0.722 132.33
3.5 0.96 134.09 0.857 -1.39 0.016 -16.54 0.762 136.36
4.0 0.942 137.96 0.841 -6.32 0.02 -10.57 0.723 140.71
15 pF
3.3 pF
RF
OUT
RF
IN
CFK2162-P3, 5V, 350 mA
50 Ω
uuuu
V
g
uuuu
100 pF
50 Ω
0.1 µF
7.5 Ω
0.1 µF
91 Ω
100
pF
V
d
1.5 pF
3.9 pF
1.8 pF
3.9 pF
47 nH
100 nH
Page 3
3236 Scott Boulevard Santa Clara, California 95054 Phone: (408) 986-5060 Fax: (408) 986-5095
Power Output & Power Added Efficiency vs Power Input
1.95 GHz, VDS = 5 V, IDS = 1.2 A
Power Input (dBm)
Power Output (dBm)
Efficiency (%)
Efficiency
Power Output
01020304050101520253035-2381823
13
Power Output & Power Added Efficiency vs Power Input
1.95 GHz, VDS = 8 V, IDS = 800 mA
Power Input (dBm)
Power Output (dBm)
Efficiency (%)
Efficiency
Power Output
01020304050101520253035-327172212Frequency, GHz
Power Output @ P
-1 dB
Gain @ P
-1 dB
Power Output
1314151612
Gain29313335
37
Power Output and Gain vs Frequency
VDS =5V, IDS = 1200 mA
1.8
1.9
2.0
1.85
1.95
Power Output & 3rd Order Products vs Power Input
1.95 GHz, VDS = 5 V, IDS = 1.2 A
Power Input (dBm)
Power Output (dBm)
3rd Order Products (dBc)
3rd Order Products
Power Output
55453525155101520253035-2381823
13
Power Output & 3rd Order Products vs Power Input
1.95 GHz, VDS = 8 V, IDS = 800 mA
Power Input (dBm)
Power Output (dBm)
3rd Order Products (dBc)
3rd Order Products
Power Output
55453525155101520253035-327172212Frequency, GHz
Power Output and Gain vs Frequency
VDS =8V, IDS = 800 mA
Power Output @ P
-1 dB
Gain13141516122931333537
Power Output
Gain @ P
-1 dB
1.8
1.9
2.0
1.85
1.95
CFK2162-P3
Product Specifications - July 1997
(3 of 4)
Typical Performance
15 pF
3.3 pF
RF
OUT
RF
IN
CFK2162-P3, 5V, 1200 mA
50 Ω
uuuu
V
g
uuuu
100 pF
50 Ω
0.1 µF
7.5 Ω
0.1 µF
91 Ω
100
pF
V
d
1.5 pF
3.9 pF
1.8 pF
3.3 pF
47 nH
100 nH
15 pF
3.3 pF
RF
OUT
RF
IN
CFK2162-P3, 8V, 800 mA
50 Ω
uuuu
V
g
uuuu
100 pF
50 Ω
0.1 µF
7.5 Ω
0.1 µF
91 Ω
100
pF
V
d
1.5 pF
3.9 pF
1.8 pF
3.9 pF
47 nH
100 nH
Page 4
3236 Scott Boulevard, Santa Clara, California 95054
Phone: (408) 986-5060 Fax: (408) 986-5095
CFK2162-P3
Product Specifications - July 1997
(4 of 4)
Celeritek reserves the right to make changes without further notice to any products herein. Celeritek makes no warranty, representation or guarantee regarding the
suitability of its products for any particular purpose, nor does Celeritek assume any liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating
parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Celeritek does not convey any license under its patent
rights nor the rights of others. Celeritek products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or
other applications intended to support or sustain life, or for any other application in which the failure of the Celeritek product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Celeritek products for any such unintended or unauthorized application, Buyer shall indemnify and hold Celeritek and
its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of,
directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Celeritek was negligent
regarding the design or manufacture of the part. Celeritek is a registered trademark of Celeritek, Inc. Celeritek, Inc. is an Equal Opportunity/Affirmative Action Employer.
Ordering Information
The CFK2162-P3 power stage is available in a SO-8 surface mount package. Devices are available in tape and reel. Ordering part
numbers are listed.
Part Number for Ordering Function Package
CFK2162-P3 1.8 - 2.0 GHz Power Stage SO-8 surface mount power package
CFK2162-P3-000T 1.8 - 2.0 GHz Power Stage SO-8 surface mount power package in tape and reel
Thermal Considerations
The data shown was taken on a 31 mil thick FR-4 board with 1 ounce copper on both sides. The board was mounted to a baseplate with 3 screws as shown. The screws bring the top side copper temperature to the same value as the baseplate. The thermal
resistance to the indicated reference lead, ΘJL, is 10°C/W. The thermal resistance to the reference screw is 12°C/W.
1. Use 1 or 2 ounce copper if possible.
2. Solder all eight leads of the CFK2162-P3 package to the appropriate electrical connection.
3. Solder the copper pad on the backside of the CFK2162-P3 package to the ground plane.
4. Use a large ground pad area with many plated through-holes as shown.
5. If possible, use at least one screw no more than 0.2 inches from the CFK2162-P3 package to provide a low thermal resistance
path to the baseplate of the package.
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