WJA1515www.DataSheet4U.com
+5V Active-Bias InGaP HBT Gain Block
Product Features
• 50 – 1000 MHz
• 15 dB Gain
• +19 dBm P1dB
• +38 dBm OIP3
• +5V Single Voltage Supply
• Internal Active Bias Supply
• Internally matched to 50 Ω
• Lead-free / RoHS-compliant /
Green SOT-89 package
Applications
• IF Amplifier
• Repeaters, BTS Transceivers
• VHF/UHF
• Wireless Infrastructure
• General Purpose
Product Description
Functional Diagram
The WJA1515 is a high performance amplifier that offers
high linearity in a low-cost surface-mount package. At 200
MHz, the WJA1515 typically provides 15 dB gain, +38
dBm OIP3, and +19 dBm P1dB. The device is housed in a
lead-free/green/RoHS-compliant SOT-89 industry-standard
SMT package using a NiPdAu plating to eliminate the
possibility of tin whiskering.
The WJA1515 consists of Darlington pair amplifiers using
a high reliability InGaP/GaAs HBT process technology.
The MMIC amplifier is internally matched to 50Ω and only
requires DC-blocking capacitors and an inductive RF choke
for operation. Biased directly from a 5V supply, an internal
active bias network enables stable operation over
temperature, eliminating the need for the typical dropping
bias resistor.
GND
4
1
RF IN
2
GND
3
RF OUT
Function
Input
Output/Bias
Ground
Pin No.
1
3
2, 4
The amplifier is targeted for high performance IF applications
in existing and next generation wireless technologies. In
addition, the WJA1515 will work for various other
applications within the 50 to 1000 MHz frequency range.
Target Specifications
Parameter
Operational Bandwidth
Test Frequency
Gain
Input Return Loss
Output Return Loss
Output P1dB
Output IP3 (2)
Noise Figure
Device Voltage
Device Current
Units
MHz
MHz
dB
dB
dB
dBm
dBm
dB
V
mA
Min
50
Typ
200
14.7
13
17
+19
+37.8
4.6
5
65
Max
1000
1. Test conditions: 25 ºC, Supply Voltage = +5 V, 50 Ω System.
2. 3OIP measured with two tones at an output power of 0 dBm/tone separated by 1 MHz. The
suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
Target Performance
Parameter
Frequency
S21
S11
S22
Output P1dB
Output IP3 (2)
Noise Figure
Units
MHz
dB
dB
dB
dBm
dBm
dB
50
15.4
-12
-14
+19
+39
4.5
Typical
100 200
14.9 14.7
-13 -13
-16 -17
+19 +19
+39 +37.8
4.5 4.6
500
14.4
-12
-14
+19
+37.8
4.6
Absolute Maximum Rating
Parameter
Operating Case Temperature
Storage Temperature
Rating
-40 to +85 °C
-55 to +150 °C
Operation of this device above any of these parameters may cause permanent damage.
Ordering Information
Part No.
WJA1515
WJA1515-PCB
Description
+5V Active Bias InGaP HBT Gain Block
(lead-free/green/RoHS-compliant SOT-89 Package)
50 – 1000 MHz Fully Assembled Eval. Board
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 3 May 2007
