3236 Scott Boulevard
Santa Clara, California 95054
Phone: (408) 986-5060
Fax: (408) 986-5095
CFB0303
Features
Low-Noise Figure from 0.8 to 2.0 GHz
High Gain
High Intercept Point
Highly Stable
Easily Matched to 50
70 mil Package
PHEMT Material
Applications
Cellular Base Stations
PCS Base Stations
Industrial Data Networks
Description
Celeritek's CFB0303 is a high performance GaAs
PHEMT with 600 m gate width and 0.25 m gate length.
The low noise figure and high intercept point of this device
makes it well suited for use as the low-noise amplifier of the
High Dynamic Range
Low-Noise GaAs FET
Advanced Product Information
June 2002
(1 of 2)
base station receiver in PCS, Japanese PHS, AMPS, GSM and
other communications systems. The CFB0303 is in an indus-
try-standard 70 mil package. It is surface mountable and
available in tape and reel.
Electrical Specifications
(TA = 25C, 2 GHz)
Parameters
Conditions
Min
Typ
Max
Units
Vd = 4V, Id = 75 mA
Noise Figure 2
0.5
0.6
dB
Associated Gain 2
@ Noise Figure
19.0
20.0
22.7
dB
Pout
1, 3
P-1
20.0
21.0
22.0
dBm
IP3
3
+5 dBm POUT/Tone
32
34
dBm
Id
3
@ P-1
83
mA
Transconductance
Vds = 4 V, Vgs = 0 V
350
mho
Saturated Drain Current
Vds = 4 V, Vgs = 0 V
80
140
240
mA
Pinchoff Voltages
Vds = 4 V, Ids = 1 mA
-0.3
V
Thermal Resistance
@ Tcase = 150C liquid crystal test
200
C/W
Notes: 1. @ T
case = 25C. Derate 5 mW/C for Tcase >25C.
2. Input matched for low noise.
3. Matched for power transfer.
Typical Scattering Parameters
(TA = 25C, VDS = 4 V, IDS = 75 mA)
Frequency
S11
S21
S12
S22
(GHz)
Mag
Ang
Mag (dB)
Ang
MAG (dB)
ANG
MAG
ANG
0.5
0.98
-24
8.47
160
0.02
77
0.33
-9
1.0
0.94
-44
8.20
147
0.03
69
0.32
-15
2.0
0.85
-80
7.30
118
0.05
51
0.27
-36
3.0
0.76
-112
6.30
94
0.07
37
0.25
-50
4.0
0.70
-134
5.60
74
0.08
29
0.24
-55
5.0
0.64
-154
5.13
54
0.09
19
0.23
-61
3236 Scott Boulevard, Santa Clara, California 95054
Phone: (408) 986-5060
Fax: (408) 986-5095
Absolute Maximum Ratings
Parameter
Symbol
Rating
Drain-Source Voltage
Vds
+8V
Gate-Source Voltage
Vgs
-5V
Drain Current
Ids
Idss
Continuous Dissipation
1
Pt
750 mW
Channel Temperature
Tch
175C
Storage Temperature
Tstg
-65C to +150C
CFB0303
Advanced Product Information - June 2002
(2 of 2)
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.
Typical Noise Parameters
(Vds = 4 V, Ids = 75 mA)
Frequency Fmin
1
Gamma Opt
(GHz)
(dB)
Mag
Ang
Rn/50
0.8
0.4
0.6
27
0.19
1.0
0.4
0.6
29
0.17
1.2
0.4
0.6
32
0.18
1.4
0.4
0.6
35
0.18
1.6
0.4
0.5
38
0.17
1.8
0.4
0.5
41
0.16
2.0
0.5
0.5
45
0.15
2.2
0.5
0.5
49
0.15
2.4
0.5
0.5
54
0.14
2.6
0.5
0.5
60
0.13
Note: 1. Fmin values reflect the circuit losses in the test fixture when
matched to optimum noise figure.
Notes
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