WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com

February 2002

AH11

Performance Charts

Dual Push-Pull Circuit: 1900 MHz

Frequency (MHz)

1500

1700

1800

1600

1900

2000

2100

S-Parameters

10

20

0

-10

-20

-30

S21

S11

S22

Power Out (dBm)

0

10

20

30

40

50

OIP3 vs. Output Power

810

12

14

16

18

20

6

2

4

0

P-P, 600 mA, 5V

Typical Performance (50 Ohm System)

Frequency

1700 MHz

1800 MHz

1900 MHz

2000 MHz

Magnitude S21

11.8 dB

11.9 dB

11.9 dB

11.6 dB

Magnitude S11

-10.0 dB

-14.0 dB

-19.0 dB

-10.0 dB

Magnitude S22

-8.3 dB

-10.0 dB

-10.0 dB

-14.0 dB

NF

3.8 dB

3.6 dB

3.7 dB

3.6 dB

OIP3

47 dBm

47 dBm

48 dBm

48 dBm

Bias

Vds = 5.0 V, Id = 600 mA

Schematic

RF OUT

DC +5 V

RF IN

C = 56 pF

C = 56 pF

C = 56, 1000, 10,000 pF

25

Ω, 17˚

25

Ω, 17˚

L = 27 nH

L = 27 nH

8 or more Via

Grounds req.

Anaren

3W525

180 Balun

Anaren

3W525

180 Balun

C = 2.2 pF

C = 2.2 pF

FR4 Board Layout (T = 14 Mils to ground plane)

RF IN

RF OUT

1.9 GHZ AH11 Dual Push Pull Amp TS

Parts List

QTY

Description

Size

MFR

Part No.

2

Hi pwr Linear Amp

SOIC8

WJ

AH11

2

180 Balun 1.9 GHz

Anaren

3W525

5

56 pF Capacitor

0603

Kemet

1

5000 pF Capacitor

0603

Kemet

1

.01 uF Capacitor

0805

Kemet

2

27 nH Inductor

0805

Coilcraft 0805CS-270XMBC

2

2.2 pF Capacitor

0603

Kemet

MTTF vs. Temperature

Ground Tab Temperature (C)

0

20

40

60

100

80

120

140

160

1011

109

107

105

103