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

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April 2007

ECG055C

InGaP HBT Gain Block

Product Features

SOT-86 Package Style

Applications

Product Description

The ECG055C is a general-purpose buffer amplifier that

offers high dynamic range in a low-cost surface-mount

package. At 1000 MHz, the ECG055C typically provides

19.7 dB of gain, +34 dBm Output IP3, and +18 dBm P1dB.

The ECG055C 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-86 packages. A SOT-89 version is also available as

the ECG055B. All devices are 100% RF and DC tested.

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 ECG055C will work for other various applications

within the DC to 6 GHz frequency range such as CATV

and fixed wireless.

Functional Diagram

RF Out

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

DC

6000

Test Frequency

MHz

1000

Gain

dB

19.7

Output P1dB

dBm

+18

Output IP3

(2)

dBm

+34

Test Frequency

MHz

2000

Gain

dB

17

18

19

Input Return Loss

dB

22

Output Return Loss

dB

21

Output P1dB

dBm

+18

Output IP3

(2)

dBm

+32

Noise Figure

dB

3.4

Device Voltage

V

4.2

4.8

5.3

Device Current

mA

65

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

Operating Case Temperature

-40 to +85 °C

Storage Temperature

-65 to +150 °C

RF Input Power (continuous)

+12 dBm

Device Current

150 mA

Junction Temperature

+250 °C

Operation of this device above any of these parameters may cause permanent damage.

Typical Performance

(1)

Parameter

Units

Typical

Frequency

MHz

500

900

1900

2140

S21

dB

20.1

19.7

18.2

17.9

S11

dB

-35

-26

-22

-22

S22

dB

-23

-22

-21

-21

Output P1dB

dBm

+18

+18.1

+18.2

+17.8

Output IP3

dBm

+34

+34

+32

+30.5

Noise Figure

dB

3.6

3.4

3.4

3.4

Ordering Information

Part No.

Description

ECG055C-G

InGaP HBT Gain Block

(lead-free/green/RoHS-compliant SOT-86 package)

ECG055C-PCB

700 –2400 MHz Fully Assembled Eval. Board