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, www.TriQuint.com Page 1 of 4 Dec 2007
WJA1030
+5V Active-Bias InGaP HBT Gain Block
Product Features
• Cascadable gain block
• 50 – 4000 MHz
• 15 dB Gain @ 1.9GHz
• +18 dBm P1dB @ 1.9GHz
• +37 dBm OIP3 @ 1.9GHz
• Operates from +5V @ 80mA
• 0.2dB gain flatness from 0.3-2.5GHz
• Robust 1000V ESD, Class 1C
• RoHS-compliant SOT-89 package
Applications
• Wireless Infrastructure
• General Purpose
• Cellular GSM, PCS, UMTS
• W-CDMA, TD-SCDMA, WiMAX
Product Description
The WJA1030 is a cascadable gain block that offers high
linearity in a low-cost surface-mount package. At 1.9 GHz,
the WJA1030 typically provides 15 dB gain, +37 dBm
OIP3, and +18 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.
The WJA1030 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 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 a +5V supply voltage.
The broadband amplifier can be directly applied to various
current and next generation wireless technologies such as
GSM, CDMA, W-CDMA, WiBro, and WiMAX. The
WJA1030 is ideal for general purpose applications such as
LO buffering, IF amplification and pre-driver stages within
the 50 to 4000 MHz frequency range.
Functional Diagram
RF IN GND
GND
1
2
3
4
Function Pin No.
Input 1
Output/Bias 3
Ground 2, 4
Specifications (1)
Parameter Units Min Typ Max
Operational Bandwidth MHz 50 4000
Test Frequency MHz 1900
Gain dB 14.9
Input Return Loss dB 12
Output Return Loss dB 16
Output P1dB dBm +18.3
Output IP3 (2) dBm +37
Output IP2 dBm +44
Noise Figure dB 6.1
Device Voltage V 5
Device Current mA 80
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 3 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 Rating
Storage Temperature -55 to +150 °C
Supply Voltage +6.5 V
Input Power +24 dBm
θjc (junction to paddle) 80.6 °C / W
Maximum Junction Temperature 150 °C
Operation of this device above any of these parameters may cause permanent damage.
Typical Performance (3)
Parameter
Units
Typical
Frequency MHz 500 900 1900 2140 2500
S21 dB 14.4 14.4 14.4 14.4 14.3
S11 dB -13 -15 -30 -36 -33
S22 dB -16 -19 -13 -12 -13
Output P1dB dBm +19.4 +19.3 +18.3 +17.5 +16
Output IP3 (2) dBm +37.9 +37 +36.6 +36.3 +33.9
Output IP2 dBm +49.4 +48.3 +44 +41.4 +39.2
Noise Figure dB 5.3 5.5 6.1 6.3 6.5
3. Listed typical performance parameters measured on evaluation board.
Ordering Information
Part No. Description
WJA1030 +5V Active Bias InGaP HBT Gain Block
(lead-free/green/RoHS-compliant SOT-89 Package)
WJA1030-PCB 50 – 4000 MHz Fully Assembled Eval. Board
Standard tape / reel size = 1000 pieces on a 7″ reel