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GSM, PCS, CDMA, WCDMA
Repeaters, BTS Transceivers
UHF
General Purpose
The WJA1005 consists of Darlington pair amplifiers using
a high reliability InGaP/GaAs HBT process technology.
The MMIC amplifier is internally matched to 50鈩?and only
requires DC-blocking capacitors and an inductive RF choke
for operation. An internal active bias is designed to enable
stable performance over temperature. It also eliminates the
need for a dropping bias resistor and allows the device to
be biased directly from a +5V supply voltage.
The amplifier is targeted for high performance RF applications
in existing and next generation wireless technologies. In
addition, the WJA1005 will work for various other
applications within the 50 to 4000 MHz frequency range.
RF IN
Function
Input
Output/Bias
Ground
Pin No.
1
3
2, 4
Specifications
Parameter
Operational Bandwidth
Test Frequency
Gain
Input Return Loss
Output Return Loss
Output P1dB
Output IP3
(2)
Noise Figure
Device Voltage
Device Current
Typical Performance
Units
MHz
MHz
dB
dB
dB
dBm
dBm
dB
V
mA
Min
50
Typ
900
17.9
14
9.5
+19.1
+35
4.0
5
63
Max
4000
Parameter
Frequency
S21
S11
S22
Output P1dB
Output IP3
(2)
Noise Figure
Units
MHz
dB
dB
dB
dBm
dBm
dB
500
18.8
-18
-13
+19.8
+37.5
3.9
Typical
900
17.9
-14
-9.5
+19.1
+35
4.0
1900
15.3
-9.4
-6.1
+15.8
+25.9
5.0
2140
14.7
-9
-5.9
+14.9
+24.8
5.0
1. Test conditions: 25 潞C, Supply Voltage = +5 V, 50
惟
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.
Absolute Maximum Rating
Parameter
Operating Case Temperature
Storage Temperature
-40 to +85
擄C
-55 to +150
擄C
Ordering Information
Part No.
WJA1005
WJA1005-PCB
Rating
Description
+5V Active Bias InGaP HBT Gain Block
(lead-free/green/RoHS-compliant SOT-89 Package)
500 鈥?2400 MHz Fully Assembled Eval. Board
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
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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
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May 2007
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