RFIC Solutions Inc.
Preliminary Datasheet
11
WLAN Power Amplifier
Description .
Functional Diagram .
RJP05
The RJP05 is 2.4 GHz to 2.5 GHz; high efficiency
Power stage for WLAN Power Amplifier. The
Amplifier is designed using 0.18um SiGe BiCMOS
process for 802.11 b/g WLAN systems.
Power amplifier shows PAE of 31% at 24 dBm
power with output match off-chip. It has been
designed specially for WLAN application.
Applications. .
• IEEE 802.11 b/g WLAN
• Cellular System
• WiFi Systems
• ISM Band Systems
Key Features. .
• Linear Gain around 26 dB
• High PAE, High Linearity
• Maximum Linear Output
Power in the range of
24dBm
Electrical Specifications. .
Conditions: Vcc = 3.3 V, Vbias = 3.3 V
Parameter Min Typical Max Units
Frequency Range
Gain
Gain Flatness
P1dB Pout
ACPR at 16 dBm Linear Pout
Efficiency @ P1dB
EVM @ P1dB
EVM @ 16 dBm Linear Pout
Input Return Loss
Output Return Loss
Supply current
Supply Voltage
2.4 2.5 GHz
26.1 dB
~1 dB
24.1 dBm
-30 dBc
31 %
1.6 %
0.17
10 dB
10 dB
~250 mA
3.3 V
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9
Preliminary Datasheet
22
WLAN Power Amplifier
RJP05
Simulated results. .
Gain Vs Frequency
30
25
20
dB(S(2,1))
15
10
2.42 2.44 2.46 2.482.40 2.50
freq, GHz
27
26
25
24
23
Gain
22
21
20
m1
m1
Pin=
Gain=26.121
RF=2.400000E
Gain Vs Input Power
m2
-20.000
-15 -10 -5 0-20 5
m2
-1.000
Pin=
Gain=25.148
RF=2.400000E
Pin
Reverse Isolation
2.42 2.44 2.46 2.482.40 2.50
freq, GHz
Pout
30
25
20
15
10
Output Power Vs Input Power
5
-15 -10 -5 0-20 5
Pin
m3
m3
Pin=
-1.000
Pout=24.148
RF=2.400000E
-30
-35
-40
-45
-50
dB(S(1,2))
-55
-60
Stability Factor
6
5
4
3
StabFact1
2
1
2.42 2.44 2.46 2.482.40 2.50
freq, GHz
0
-5
-10
-15
-20
dB(S(1,1))
dB(S(2,2))
-25
-30
Return Losses Vs Frequenc
2.42 2.44 2.46 2.482.40 2.50
freq, GHz
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Preliminary Datasheet
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WLAN Power Amplifier
Stability Factor
20
16
11
StabFact1
6
1
23456789110
freq, GHz
50
40
30
20
10
Output Power and PAE(%)
RJP05
5.5
5.0
4.5
K
4.0
3.5
stability Factor
-15 -10 -5 0-20 5
RF power,dBm
0
-15 -10 -5 0 5-20 10
Input Power, dBm
Layout.
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