WJA1515
+5V Active-Bias InGaP HBT Gain Block
Product Features
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Cascadable gain block
50 – 1000 MHz
14 dB Gain
+19 dBm P1dB
+38 dBm OIP3
+56 dBm OIP2
Operates from +5V @ 70mA
Robust 1000V ESD, Class 1C
RoHS-compliant SOT-89 package
Product Description
The WJA1515 is a cascadable gain block that offers high
linearity in a low-cost surface-mount package. At 200
MHz, the WJA1515 typically provides 14 dB gain, +38
dBm OIP3, and +19 dBm P1dB. The device is housed in a
RoHS-compliant SOT-89 industry-standard SMT package
using a NiPdAu plating to eliminate the possibility of tin
whiskering.
Functional Diagram
GND
4
1
2
GND
3
RF OUT
Applications
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IF Amplifier
VHF/UHF Transmission
Wireless Infrastructure
General Purpose
CATV / FTTH
The WJA1515 consists of Darlington pair amplifiers using
a high reliability InGaP/GaAs HBT process technology.
The MMIC amplifier is internally matched to 50 and only
requires DC-blocking capacitors and a bias inductor for
operation. An internal active bias is designed to enable
stable performance over temperature. A dropping bias
resistor is not required allowing the device to be biased
directly from +5V supply voltage.
The amplifier is targeted for high performance IF applications
in existing and next generation wireless technologies. The
WJA1515 is ideal for general purpose applications such as LO
buffering, IF amplification and pre-driver stages within the 50
to 1000 MHz frequency range.
RF IN
Function
Input
Output/Bias
Ground
Pin No.
1
3
2, 4
Specifications
(1)
Parameter
Operational Bandwidth
Test Frequency
Gain
Input Return Loss
Output Return Loss
Output P1dB
Output IP3
(2)
Output IP2
Noise Figure
Device Voltage
Device Current
Typical Performance
(3)
Units
MHz
MHz
dB
dB
dB
dBm
dBm
dBm
dB
V
mA
Min
50
Typ
200
14.4
12
17
+19.0
+38.2
+56
5.0
5
70
Max
1000
Parameter Units Typical
Frequency
S21
S11
S22
Output P1dB
Output IP3
(2)
Output IP2
Noise Figure
MHz
dB
dB
dB
dBm
dBm
dBm
dB
70
170
240
500
14.8
14.2
14.0
14.1
-10
-11
-12
-13
-19
-17
-16
-18
+18.8 +18.9 +19.0 +18.9
+37.2 +38.2 +38.5 +38.5
55.7
56.5
57.2
59.7
4.9
5
5
5.2
900
13.9
-16
-16
18.4
35.7
59.6
5.7
3. Listed typical performance parameters measured on evaluation board
1. Test conditions: 25 ºC, Supply Voltage = +5 V, 50
Ω
System. S-parameters and 3OIP measured at
device pins. All other specifications measured on evaluation board.
2. 3OIP measured with two tones at an output power of 8 dBm/tone separated by 1 MHz. The
suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
Absolute Maximum Rating
Parameter
Storage Temperature
Supply Voltage
Input Power
θ
jc
(junction to paddle)
Maximum Junction Temperature
Rating
-55 to +150
°C
+6.5 V
+24 dBm
83.8
°C
/ W
150
°C
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
Operation of this device above any of these parameters may cause permanent damage.
Standard Tape / Reel size = 1000 pieces on a 7″ reel
Specifications and information are subject to change without notice
Page 1 of 4
Dec 2007
WJ Communications, Inc
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Phone 1-800-WJ1-4401
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FAX: 408-577-6621
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e-mail: sales@wj.com
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Web site: www.wj.com, www.TriQuint.com
WJCI [ WJ COMMUNICATION. INC. ]
