ECG055B
InGaP HBT Gain Block
Product Features
Product Description
Functional Diagram
GND
The ECG055B is a general-purpose buffer amplifier that
offers high dynamic range in a low-cost surface-mount
package. At 1000 MHz, the ECG055B typically provides
20.5 dB of gain, +34 dBm Output IP3, and +18 dBm P1dB.
• DC – 3 GHz
4
• +18 dBm P1dB at 1 GHz
• +34 dBm OIP3 at 1 GHz
• 20.5 dB Gain at 1 GHz
• 3.4 dB Noise Figure
The ECG055B consists of Darlington pair amplifiers using
the high reliability InGaP/GaAs HBT process technology
and only requires DC-blocking capacitors, a bias resistor,
and an inductive RF choke for operation. The device is
ideal for wireless applications and is available in low-cost,
surface-mountable plastic lead-free/green/RoHS-compliant
SOT-89 packages. A SOT-86 version is also available as
the ECG055C. All devices are 100% RF and DC tested.
1
2
3
• Available in Lead-free / green
SOT-89 Package Style
RF IN
GND
RF OUT
• Internally matched to 50 Ω
Function
Pin No.
Input
1
3
Output/Bias
Ground
Applications
2, 4
The broadband MMIC amplifier can be directly applied to
various current and next generation wireless technologies
such as GPRS, GSM, CDMA, and W-CDMA. In addition,
the ECG055B will work for other various applications
within the DC to 3 GHz frequency range such as CATV
and mobile wireless.
• Mobile Infrastructure
• CATV / FTTX
• W-LAN / ISM
• RFID
• WiMAX / WiBro
Specifications (1)
Typical Performance (1)
Parameter
Operational Bandwidth
Test Frequency
Gain
Units Min Typ Max
Parameter
Frequency
Units
MHz
Typical
MHz
MHz
dB
DC
3000
500
20.6
-31
900
1900
2140
S21
dB
dB
20.5
20.1
20.1
-18.5
-12.2
1000
20.5
+18
+34
2000
20.1
20
S11
-26.3
-19.1
-19.7
-12.9
S22
dB
-23
Output P1dB
Output IP3 (2)
Test Frequency
Gain
dBm
dBm
MHz
dB
Output P1dB
Output IP3
Noise Figure
dBm
dBm
dB
+18
+34
3.6
+18.1 +18.2 +17.8
+34
3.4
+32
3.4
+30.5
3.4
19.3
20.8
Input Return Loss
Output Return Loss
Output P1dB
Output IP3 (2)
Noise Figure
Device Voltage
Device Current
dB
dB
12.5
+18
+32
3.4
dBm
dBm
dB
+30
4.2
4
V
4.8
5.3
65
mA
1. Test conditions unless otherwise noted: 25 ºC, Supply Voltage = +6 V, Rbias = 18 Ω, 50 Ω System.
2. 3OIP measured with two tones at an output power of +4 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
Ordering Information
Operating Case Temperature
Storage Temperature
RF Input Power (continuous)
Device Current
-40 to +85 °C
-65 to +150 °C
+12 dBm
Part No.
Description
InGaP HBT Gain Block
(lead-free/green/RoHS-compliant SOT-89 package)
ECG055B-G
ECG055B-PCB
150 mA
700 –2400 MHz Fully Assembled Eval. Board
Junction Temperature
+250 °C
Operation of this device above any of these parameters may cause permanent damage.
Specifications and information are subject to change without notice
Page 1 of 4 April 2007
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com