High Dynamic Range Gain Block
AM1
The Communications Edge
TM
Product Information
Product Features
x
x
x
x
x
x
x
60 – 3000 MHz
14 dB Gain
2.4 dB Noise Figure
+39 dBm OIP3
Single +3.3 or +4.5 Supply
Internally matched to 50
:
Lead-free/Green/
RoHS-
compliant
SOT-89 Package
x
MTTF > 1000 years
Product Description
The AM1 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 near-constant OIP3
and low noise figure performance over frequency makes it
attractive for both narrowband and broadband 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.
The AM1 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 broadband MMIC amplifier is well suited for various
current and next generation wireless technologies such as
GPRS, GSM, CDMA, and W-CDMA. In addition, the
AM1 will work for other applications within the 60 to 3000
MHz frequency range such as fixed wireless.
Functional Diagram
GND
4
1
RF IN
2
GND
3
RF OUT
Applications
x
x
x
x
x
x
Mobile Infrastructure
CATV / DBS
W-LAN / ISM
RFID
Defense / Homeland Security
Fixed Wireless
Function
Input
Output/Bias
Ground
Pin No.
1
3
2, 4
Specifications
(1)
Parameter
Operational Bandwidth
Test Frequency
Gain
Input Return Loss
(5)
Output Return Loss
Output P1dB
Output IP3
(2)
Noise Figure
(3)
Operating Current Range
Supply Voltage
Typical Performance
(4)
Units
MHz
MHz
dB
dB
dB
dBm
dBm
dB
mA
V
¡
Min
60
13
Typ
800
14
8.5
20
+18
+39
2.4
78
4.5
Max
3000
16
Parameter
Frequency
S21
S11
(5)
S22
Output P1dB
Output IP3
Noise Figure
Supply Voltage
Device Current
Units
MHz
dB
dB
dB
dBm
dBm
dB
V
mA
900
14
-10
-27
+18
+39
2.4
+4.5
78
Typical
1900
12.8
-9
-22
+18
+39
2.6
900
14
-10
-28
+16
+38
2.3
+3.3
75
1900
12.5
-9
-19
+16
+38
2.6
+36
55
100
1. Test conditions unless otherwise noted: T = 25 ºC, 50 system.
2. 3OIP measured with two tones at an output power of +2 dBm/tone separated by 10 MHz. The
suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
3. Noise figure can be optimized by matching the input for optimal return loss.
4. Parameters reflect performance in an AM1-PCB application circuit, as shown on page 4.
5. Input return loss can be dramatically improved (<-20 dB) for narrowband applications as shown on
page 5 of this datasheet.
Absolute Maximum Rating
Parameter
Operating Case Temperature
Storage Temperature
DC Voltage
RF Input Power (continuous)
Junction Temperature
-40 to +85
qC
-55 to +150
qC
+5.5 V
+7 dBm
+220
qC
Rating
Ordering Information
Part No.
AM1-G
AM1-PCB
Description
(lead-free/green/RoHS-compliant SOT-89 Pkg)
High Dynamic Range Gain Block
0.8 – 2.6 GHz Fully Assembled Application Circuit
Specifications and information are subject to change without notice.
Operation of this device above any of these parameters may cause permanent damage.
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 6
June 2006
WJCI [ WJ COMMUNICATION. INC. ]
