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AH31-G Datasheet PDF : 9 Pages
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AH31
High Dynamic Range IF Amplifier
The Communications Edge TM
Product Information
Product Features
• 50 – 1000 MHz
• 19 dB Gain
• +22 dBm P1dB
• +42 dBm OIP3
• 1.8 dB Noise Figure
• Single Voltage Supply (+5 V)
• Lead-free/Green/RoHS-
compliant SOT-89 Package
• MTTF > 1000 years
Product Description
The AH31 is a high dynamic range amplifier in a low-cost
surface-mount package. The combination of low noise
figure, high gain, and high output IP3 is ideal as an IF
amplifier for receiver and transmitter applications.
The device combines dependable performance with
consistent quality to maintain MTTF values exceeding
1000 years at mounting temperatures of +85°C and is
available in both the standard SOT-89 package and the
environmentally-friendly lead-free/green/RoHS-compliant
and green SOT-89 package. All devices are 100% RF &
DC tested.
Applications
• High linearity and low-noise
amplifier following a mixer
• High performance amplifier
in IF path of TX/RX systems
The MMIC amplifier based on GaAs MESFET technology
can be configured for IF and RF applications with various
current and next generation wireless technologies.
Functional Diagram
GND
4
1
RF IN
2
GND
3
RF OUT
Function
Input
Output/Bias
Ground
Pin No.
1
3
2, 4
Specifications (1)
Parameter
Operational Bandwidth
Test Frequency
Gain
Output P1dB
Output IP3 (2)
Supply Voltage
Operating Current Range
Units
MHz
MHz
dB
dBm
dBm
V
mA
Min
50
+37
120
Typ
240
19
+22
+42
+5
150
Max
1000
180
1. Test conditions : T = 25ºC, Vdd = +5 V, 50 Ω system.
2. 3OIP measured with two tones at an output power of +10 dBm/tone separated by 1 MHz. The
suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
Typical Performance (3)
Parameter Units
Typical
Frequency
MHz 75 170 240 500 900
S21
dB
19 19 19 18 16.8
S11
dB -25 -13 -15 -15 -14
S22
dB -25 -20 -17 -10 -11
Output P1dB dBm +22 +22 +22 +22 +21
Output IP3
dBm +42 +42 +42 +42 +41
Noise Figure
dB 2.4 1.8 1.8 1.7 2.1
3. Typical parameters reflect performance in an application circuit.
Ordering Information
Absolute Maximum Rating
Parameter
Operating Case Temperature
Storage Temperature
DC Voltage
RF Input Power (continuous)
Junction Temperature
Rating
-40 to +85 °C
-55 to +150 °C
+6 V
4 dB above Input P1dB
+220° C
Part No.
AH31
AH31-G
AH31-PCB75
AH31-PCB170
AH31-PCB240
AH31-PCB500
Description
High Dynamic Range IF Amplifier
(leaded SOT-89 Pkg)
High Dynamic Range IF Amplifier
(lead-free/green/RoHS-compliant SOT-89 Pkg)
65 – 85 MHz Fully Assembled Evaluation Board
155 – 185 MHz Fully Assembled Evaluation Board
220 – 260 MHz Fully Assembled Evaluation Board
450 – 550 MHz Fully Assembled Evaluation Board
Operation of this device above any of these parameters may cause permanent damage.
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
September 2004
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