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

Page 1 of 5 April 2006

AH2

High Dynamic Range Amplifier

Product Information

Product Features

SOT-89 Package

Applications

Product Description

The AH2 is a general purpose, high dynamic range

amplifier targeting cable TV markets. The combination of

gain flatness, high linearity and bandwidth make it ideal for

CATV distribution, cable modem and laser diode driver

applications. The AH2 is designed for 75 ohm systems and

can operate directly from a +5 Volt DC regulator. The

device is manufactured using reliable GaAs MESFET

technology and boasts an MTBF of >100 years at a

mounting temperature of +85 °C. It is available in the

environmentally-friendly lead-free/green/RoHS-compliant

SOT-89 package. All devices are 100% RF and DC tested.

Functional Diagram

RF IN

GND

RF OUT

GND

1

2

3

4

Function

Pin No.

Input

1

Output/Bias

3

Ground

2, 4

Parameter

Units

Min

Typ

Max

Operational Bandwidth

MHz

50

1000

Test Frequency

MHz

800

Gain

dB

13

14.5

Input Return Loss

dB

14

Output Return Loss

dB

17

Output P1dB

dBm

+21

dBm

+37

+40

Noise Figure

dB

3.5

Operating Current Range

mA

120

150

180

Supply Voltage

V

5

1. Test conditions unless otherwise noted: T = 25 ºC, 50

system.

2. 3OIP measured with two tones at an output power of +5 dBm/tone separated by 10 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

qC

Storage Temperature

-55 to +150

qC

Supply Voltage

+6 V

RF Input Power (continuous)

+10 dBm

Junction Temperature

+220

qC

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

Parameter

Units

Typical

Frequency

MHz

100

860

S21

dB

14.5

13.2

S11

dB

-14

-14

S22

dB

-17

-17

Output P1dB

dBm

+20

+20

dBm

+40

+40

dBm

+52

+52

dBc

-71

dBc

-48

dBc

-65

Noise Figure

dB

3.5

3.5

Supply Voltage

V

5

Device Current

mA

150

3. Parameters reflect performance in a single-ended 75 ohm circuit, as shown on page 3.

4. 77 channels 50 – 550MHz +34dBmV/channel, flat-loading

Ordering Information

Part No.

Description

AH2-G

High Dynamic Range Amplifier

(lead-free/green/RoHS-compliant SOT-89 package)

AH2-PCB

Single-ended 75 ohm Application Circuit Board