This document contains information on a new product.

Specifications and information are subject to change without notice

WJ Communications, Inc

• Phone 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com

May 2002

Preliminary Product Information

AH201

Medium Power, High Linearity Amplifier

Application Circuit: 900 MHz and 1900 MHz

Typical Specifications

Frequency

MHz

900

1900

2200

S21 - Gain

dB

17

15

14

S11 - Input R.L.

dB

-13

-9.5

-9.3

S22 - Output R.L.

dB

-15

-9.5

-9.0

Noise Figure

dB

3.8

4.3

4.4

Output P1dB

dBm

+30.0

+29.5

+29.3

Output IP3

dBm

+47

+47

+47

IS-95 Channel Power

@ -45dBc ACPR

dBm

+24

+23.6

+23.5

C1

C2

L1

AH201

L1

C3

C4

C5

C6

GND

Vs

RF In

RF Out

Board Material:

14 mil GETEK (

Line Width:

28 mil

Line Spacing:

36 mil

Notes:

• Via holes are omitted for clarity.

• The microstrip line is weakly co-planer. Ground planes

around it are not necessary for operation of the AH201.

• Adequate heat sinking is required for the device.

Further mounting instructions will be shown in the

“Mounting Configuration” section of this datasheet on

the next revision for the datasheet.

• The pin configuration must be soldered accordingly

(shown on the “Functional Diagram”).

• The 900 MHz application circuit board is labeled as

AH201-PCB-900.

• The 1900 MHz and 2200 MHz application circuit board

is labeled as AH201-PCB-1900.

AH201

PIN 2

PIN 9

L1

C1

56 pF

INPUT MATCH

RF OUT

L2

22 nH

56 pF

DC BIAS

C3

56 pF

CIRCUIT SCHEMATIC

C2

C5

0805

1000 pF

C6

1206

.018

µF

RF IN

900 MHz

1900 MHz

2200 MHz

L1 = 3.3 nH

L1 = 0

Ω

L1 = 0

Ω

C2 = 2.2 pF

C2 = no load

C2 = no load

AH201-PCB-900

AH201-PCB-1900

AH201-PCB-1900