provides a 50Ω nominal RF input impedance. The external
output match and bias adjustability allows load line optimi-
zation for other applications or over narrower bands. It fea-
tures an output power detector, on/off power control and
high RF overdrive robustness. This product is available in a
RoHS Compliant and Green package with matte tin finish,
designated by the “Z” package suffix.
SZA-2044 / SZA-2044Z
2.0-2.7 GHz 5V 1W Power Amplifier
Pb
RoHS Compliant
&
Green
Package
4mm x 4mm QFN Package
Product Features
•
•
•
•
•
•
802.11g 54Mb/s Class AB Performance
Pout = 22.5dBm @ 3% EVM, 5V, 340mA
Pout = 18dBm @ 3% EVM, 3.3V, 175mA
On-chip Output Power Detector
P1dB = 29.5dBm @ 5V, P1dB = 25dBm @ 3.3V
Robust - Survives RF Input Power = +15dBm
Power up/down control < 1µs
Available in RoHS Green Compliant Package
802.11b/g WLAN, 2.4GHz ISM Applications
WiMax 802.16, MMDS and MDS bands
Unit
MHz
dBm
Min.
2000
29.5
28.0
23.5
23.5
29.5
25.5
25.5
22.5
22.5
6.1
-44
10
9
13
11
0.9 to 1.7
255
300
1.9
6
28
100
345
-40
27.5
27.5
Typ.
Max.
2700
Functional Block Diagram
Vcc
Power
Up/Down
Control
Active
Bias
Active
Bias
RFIN
RFOUT
Applications
Power Detector Vout
Key Specifications
Symbol
f
O
P
1dB
S
21
Pout
NF
IM3
IRL
ORL
Vdet Range
I
cq
I
VPC
I
LEAK
R
th, j-l
Parameters: Test Conditions, App circuit page 4
Z
0
= 50Ω, V
CC
= 5.0V, Iq = 300mA, T
BP
= 30ºC
Frequency of Operation
Output Power at 1dB Compression – 2.4 GHz
Output Power at 1dB Compression – 2.5 GHz
Small Signal Gain at 2.4 GHz
Small Signal Gain at 2.5 GHz
Output power at 3% EVM 802.11g 54Mb/s - 2.4GHz
•
•
dB
Output Power at 3% EVM 802.11g 54Mb/s - 2.5GHz
Noise Figure at 2.5 GHz
Third Order Intermod at 18dBm per tone - 2.5GHz
Worst Case Input Return Loss 2.4-2.5GHz
Worst Case Output Return Loss 2.4-2.5GHz
Output Voltage Range for Pout=15dBm to 29dBm
Quiescent Current (V
cc
= 5V)
Power Up Control Current, Vpc=5V, ( I
VPC1
+ I
VPC2
)
Off Vcc Leakage Current Vpc=0V
Thermal Resistance (junction - lead)
dBm
dB
dBc
dB
V
mA
mA
uA
ºC/W
The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or ommisions.
Sirenza Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without
notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product
for use in life-support devices and/or systems.
Copyright 2002 Sirenza Microdevices, Inc. All worldwide rights reserved.
303 South Technology Court Broomfield, CO 80021
Phone: (800) SMI-MMIC
1
http://www.sirenza.com
EDS-103612 Rev D
SZA-2044 2.0-2.7GHz 5V Power Amp
Pin Out Description
Pin #
1,2,4,5,
7,9,11,
13,
15,17,19
6
Function
N/C
Description
These are unused pins and not wired inside the package. They may be grounded or connected to adjacent
pins.
VPC1 is the bias control pin for the stage 1 active bias circuit. An external series resistor is required for proper
setting of bias levels. Refer to the evaluation board schematic for resistor value. To prevent potential damage,
do not apply voltage to this pin that is +1V greater than voltage applied to pin 20 (Vbias) unless Vpc supply
current capability is less than 10 mA.
VPC2 is the bias control pin for the stage 2 active bias circuit. An external series resistor is required for proper
setting of bias levels. Refer to the evaluation board schematic for resistor value. To prevent potential damage,
do not apply voltage to this pin that is +1V greater than voltage applied to pin 20 (Vbias) unless Vpc supply
current capability is less than 10 mA.
Output power detector voltage. Load with > 10K ohms for best performance
RF input pin. This is DC grounded internal to the IC. Do not apply voltage to this pin.
RF output pin. This is also another connection to the 2nd stage collector.
2nd stage collector bias pin. Apply 3.0 to 5.0V to this pin.
1st stage collector bias pin. Apply 3.0 to 5.0V to this pin.
Active bias network VCC. Apply 3.0 to 5.0V to this pin.
Exposed area on the bottom side of the package needs to be soldered to the ground plane of the board for
optimum thermal and RF performance. Several vias should be located under the EPAD as shown in the rec-
ommended land pattern (page 5).
VPC1
8
10
3
12,14
16
18
20
EPAD
VPC2
Vdet
RFIN
RFOUT
VC2
VC1
Vbias
Gnd
Simplified Device Schematic
Absolute Maximum Ratings
Pin
20
Pin
6
Pin
18
Pin
8
Pin
16
Parameters
VC2 Collector Bias Current (I
VC2
)
VC1 Collector Bias Current (I
VC1
)
Device Voltage (V
D
)
Power Dissipation
Value
500
150
7.0
3
-40 to +85
15
8
-40 to +150
+150
500
Unit
mA
mA
V
W
ºC
dBm
dBm
ºC
ºC
V
Stage 1
Bias
Stage 2
Bias
Operating Lead Temperature (T
L
)
Max RF Input Power for 50 ohm output
load
Max RF Input Power for 10:1 VSWR RF
out load
Storage Temperature Range
Pin 3
EPAD
Pin
10
EPAD
Pin 12, 14
Operating Junction Temperature (T
J
)
ESD Human Body Model (Class 1C)
Operation of this device beyond any one of these limits may
cause permanent damage. For reliable continuous operation
the device voltage and current must not exceed the maximum
operating values specified in the table on page one.
Bias conditions should also satisfy the following expression:
I
D
V
D
< (T
J
- T
L
) / R
TH’
j-l
Caution: ESD Sensitive
Appropriate precaution in handling, packaging
and testing devices must be observed.
303 South Technology Court Broomfield, CO 80021
Phone: (800) SMI-MMIC
2
http://www.sirenza.com
EDS-103612 Rev D
SZA-2044 2.0-2.7GHz 5V Power Amp
Performance: 2.3 - 2.7 GHz Evaluation Board Data (V
cc
= V
pc
= 5.0V, I
q
= 300mA)
S11 - Input Return Loss
0
S12 - Isolation
0
-10
-5
S11(dB)
-20
S12(dB)
0
1
2
3
Freq (GHz)
T=25C
4
5
6
-30
-40
-50
-60
-70
-10
-15
-20
-80
0
1
2
3
Freq (GHz)
T=25C
4
5
6
T=-40C
T=85C
T=-40C
T=85C
S21 - Gain
30
25
-5
S21(dB)
S22(dB)
20
15
10
-15
5
0
0
1
2
3
Freq (GHz)
T=25C
4
5
6
-20
0
1
0
S22 - Output Return Loss
-10
2
3
Freq (GHz)
T=25C
4
5
6
T=-40C
T=85C
T=-40C
T=85C
Narrowband S11 - Input Return Loss
-10
-40
Narrowband S12 - Isolation
-50
S11(dB)
S12(dB)
2.0
2.1
2.2
2.3
2.4 2.5 2.6
Freq (GHz)
T=25C
2.7
2.8
2.9
3.0
-15
-60
-70
-20
-80
2.0
2.1
2.2
2.3
2.4 2.5 2.6
Freq (GHz)
T=25C
2.7
2.8
2.9
3.0
T=-40C
T=0C
T=70C
T=85C
T=-40C
T=0C
T=70C
T=85C
303 South Technology Court Broomfield, CO 80021
Phone: (800) SMI-MMIC
3
http://www.sirenza.com
EDS-103612 Rev D
SZA-2044 2.0-2.7GHz 5V Power Amp
Performance: 2.3 - 2.7 GHz Evaluation Board Data (V
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