Text preview for : RGPA05(1.85-1.91 GHz GaAs pHEMT ).pdf part of Rficsolutions.Inc RGPA05 The RGPA05 is a 1.85 to 1.91 GHz high efficiency
GaAs Enhancement mode psuedomorphic high
electron mobility transistor MMIC power stage. This
power stage can be preceded by a Driver stage to
realize a complete amplifier.
It has been designed specially for use in PCS band.
The part is matched at the input and output so no
additional RF matching components are required.
The power stage exhibits unparalleled linearity and
efficiency for this Band. The part is biased by a
single 3.3 V Supply
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RFIC Solutions Inc.
Power Amplifier
Description .
Preliminary Datasheet RGPA05
Functional Diagram
.
The RGPA05 is a 1.85 to 1.91 GHz high efficiency GaAs Enhancement mode psuedomorphic high electron mobility transistor MMIC power stage. This power stage can be preceded by a Driver stage to realize a complete amplifier. It has been designed specially for use in PCS band. The part is matched at the input and output so no additional RF matching components are required. The power stage exhibits unparalleled linearity and efficiency for this Band. The part is biased by a single 3.3 V Supply .
Supply Biasing Ckt C F R
Matching
Matching
Applications. · CDMA PCS Handsets · Spread-Spectrum Systems · Portable Battery-Powered Equipment
.
Key Features. . · Low Cost · Linear Gain around 14.8 dB · Maximum Linear Output Power in the range of 26 dBm · High Performance
Electrical Specifications.
.
Conditions: Vcc = 3.3 V & TA=25 0C
Parameter
Frequency Maximum Linear Power Output Gain Input Return Loss Output Return Loss ACPR Supply Voltage Supply Current
Min
1.850 14
Typical
26 14.5 12 12 -40 @ Po 3.3 70
Max
1.910 14.8
Units
GHz dBm dB dB dB dBc Volt mA
March 12, 2007
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Data subject to change without Notice
RFIC Solutions Inc.
Power Amplifier
Simulated results. Small signal gain Vs Freq
28 26 24 22
Preliminary Datasheet RGPA05
. Pout Vs Pin
40
20
d (S2 ) B ( ,1)
Pout
4 0 .9 G 5 0 .0 G 5 0 .1 G 5 0 .2 G 5 0 .3 G 5 0 .4 G 5 0 .5 G 5 0 .6 G 5 0 .7 G 5 0 .8 G 5 0 .9 G
20 18 16 14 12 10
0
-20
-40 -60 -40 -20 0 20 40
RFfreq
pin
Input Return Loss Vs Power
Output Return Loss Vs Power
Layout.
March 12, 2007
www.rficsolutions.com
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RFIC Solutions Inc. Proprietary Information
Data subject to change without Notice