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

May 2004

AH118

¼ Watt, High Linearity InGaP HBT Amplifier

Product Information

The Communications Edge

TM

Product Features

Applications

Product Description

The AH118 is a high dynamic range driver amplifier in a

low-cost surface mount package. The InGaP/GaAs HBT

is able to achieve high performance across a broad range

with +40.5 dBm OIP3 and +24.7 dBm of compressed

1dB power. It is housed in an industry standard SOT-89

SMT package. All devices are 100% RF and DC tested.

The AH118 is targeted for use as a driver amplifier in

wireless infrastructure where high linearity and medium

power is required. Internal biasing allows the AH118 to

maintain high linearity over temperature and operate

directly off a single +5V supply.

This combination

makes the device an excellent candidate for transceiver

line cards in current and next generation multi-carrier 3G

base stations.

Functional Diagram

1

3

2

4

Function

Pin No.

Input / Base

1

Output / Collector

3

Ground

2, 4

Specifications

Parameter

Units

Min

Typ

Max

Frequency

MHz

1900

S21 - Gain

dB

13.5

16.5

S11 - Input R.L.

dB

-12

S22 - Output R.L.

dB

-18

Output P1dB

dBm

+23

+24.7

Output IP3

dBm

+39.5

+40.5

IS-95A Channel Power

@ -45 dBc ACPR

dBm

+18

W-CDMA Channel Power

@ -45 dBc ACLR, 2140 MHz

dBm

+16.7

Noise Figure

dB

4.3

Operating Current Range

mA

140

160

175

Device Voltage

V

+5

Test conditions unless otherwise noted.

1. T = 25ºC, Vsupply = +5 V, Frequency = 1900 MHz, in tuned application circuit.

2. 3OIP measured with two tones at an output power of +11 dBm/tone separated by 1 MHz. The

suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.

Typical Performance

Parameter

Units

Typical

Frequency

MHz

900

1900

2140

S21 - Gain

dB

20.4

16.5

16.3

S11 - Input R.L.

dB

-15

-12

-15

S22 - Output R.L.

dB

-12

-18

-16

Output P1dB

dBm

+24.2

+24.7

+24.7

Output IP3

dBm

+40

+40.5

+40.5

IS-95A Channel Power

@ -45 dBc ACPR,

dBm

+18.2

+18

W-CDMA Channel Power

@ -45 dBc ACLR

dBm

+16.7

Noise Figure

dB

4.0

4.3

4.8

Supply Bias

+5 V @ 160 mA

Typical parameters reflect performance in a tuned application circuit:

Supply Voltage = +5 V, I = 160 mA, +25

° C

Absolute Maximum Rating

Ordering Information

Parameter

Rating

Part No.

Description

Operating Case Temperature

-40 to +85

°C

AH118-89

¼ Watt, High Linearity InGaP HBT Amplifier

Storage Temperature

-65 to +150

°C

AH118-89PCB900

900 MHz Evaluation Board

RF Input Power (continuous)

+15 dBm

AH118-89PCB1900

1900 MHz Evaluation Board

Device Voltage

+6 V

AH118-89PCB2140

2140 MHz Evaluation Board

Device Current

220 mA

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