Specifications and information are subject to change without notice.
WJ Communications, Inc Phone 1-800-WJ1-4401 FAX: 408-577-6621 e-mail: sales@wj.com Web site: www.wj.com
Page 1 of 4
April 2006
AG103
High Dynamic Range Gain Block
Product Information
The Communications Edge TM
Product Features
x 50 – 870 MHz
x 13 dB Gain
x 3 dB Noise Figure
x >+36 dBm OIP3
x +20 dBm P1dB
x Single +5 Bias Supply
x Internally matched to 50 :
x Lead-free/Green/RoHS-
compliant
SOT-89 Package
x MTTF > 1000 years
Applications
x Mobile Infrastructure
x CATV / DBS
x Defense / Homeland Security
x NMT-450 Infrastructure
Product Description
The AG103 is a general-purpose gain block that offers good
dynamic range and low noise figure in a low-cost surface-
mount package. The combination of high OIP3 and tight
gain variation window makes it attractive for a multitude of
applications. The device combines dependable performance
with superb quality to maintain MTTF values exceeding
1000 years at mounting temperatures of +85
qC and is
available in the environmentally-friendly lead-free/green
/RoHS-compliant SOT-89 package. All devices are 100%
RF & DC tested.
The AG103 uses a high reliability GaAs MMIC technology
and only requires DC-blocking and bypass capacitors, and
an inductive RF choke for operation. Internal matching
provides a 50 ohm input / output impedance minimizing the
number of required external components.
The AG103 GaAs MMIC amplifier is well suited for
wireless infrastructure such as NMT-450, homeland
security, and 2nd generation mobile infrastructure utilizing
the cellular band. In addition, the amplifier can be used for
applications in various IF frequency bands.
Functional Diagram
RF IN
GND
RF OUT
GND
1
2
3
4
Function
Pin No.
Input
1
Output/Bias
3
Ground
2, 4
Specifications (1)
Parameter
Units
Min
Typ
Max
Comment
Operational Bandwidth
MHz
50
870
Test Frequency
MHz
800
Gain
dB
12
12.9
14
Input Return Loss
dB
10
See note 2
Output Return Loss
dB
20
Output P1dB
dBm
+20
Output IP3
dBm
+33
>+36
Pout = +5 dBm/tone, 10 MHz spacing.
Noise Figure
dB
2.9
See note 2
Operating Current Range
mA
120
150
180
Supply Voltage
V
+5
1. Test conditions unless otherwise noted: T = 25 C, 50 system.
2. S11 and Noise Figure can be improved using an optional input matching network (typically just a series inductor).
Absolute Maximum Rating
Parameter
Rating
Operating Case Temperature
-40 to +85
qC
Storage Temperature
-55 to +150
qC
DC Voltage
+6 V
RF Input Power (continuous)
+10 dBm
Junction Temperature
+220
qC
Operation of this device above any of these parameters may cause permanent damage.
Ordering Information
Part No.
Description
AG103-G
GaAs MMIC Gain Block
(lead-free/green/RoHS-compliant SOT-89 Pkg)
AG103-PCB
200 – 600 MHz Fully Assembled Application Circuit