M100.Q (3/13)

2

pulseelectronics.com

HIGH FREQUENCY BALUN ADAPTER

For 150

Ω Fibre Channel , 100 Ω Gigabit Ethernet and 78 Ω High Speed 1553

Military/Aerospace Grade/Specialty Components

Application Notes

For More Information

Pulse North America

Headquarters

Two Pearl Buck Court

Bristol, PA 19007

U.S.A.

Tel: 215 781 6400

Fax: 215 781 6403

Pulse Europe

Zeppelinstrasse 15

71083 Herrenberg

Germany

Tel: 49 7032 7806 0

Fax: 49 7032 7806 12

Pulse China Headquarters

B402, Shenzhen Academy of

Aerospace Technology Bldg.

10th Kejinan Road

High-Tech Zone

Nanshan District

Shenzen, PR China 518057

Tel: 86 755 33966678

Fax: 86 755 33966700

Pulse North China

Room 2704/2705

Super Ocean Finance Ctr.

2067 Yan An Road West

Shanghai 200336

China

Tel: 86 21 62787060

Fax: 86 2162786973

Pulse South Asia

135 Joo Seng Road

#03-02

PM Industrial Bldg.

Singapore 368363

Tel: 65 6287 8998

Fax: 65 6287 8998

Pulse North Asia

3F No. 198, Zhongyuan Road

Zhongli City

Taoyuan County (32068)

Taiwan

Tel: 886 3 4356768

Fax: 886 3 4356823

Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be

trademarks or registered trademarks of their respective owners. © Copyright, 2013. Pulse Electronics, Inc. All rights reserved.

The Specialty Components Division has developed a high frequency BALUN

for test and measurement applications. Wide bandwidth and high frequency

response makes thisdevice ideal for differential mode measurement in high

speed applications such as Fibre Channel, Gigabit Ethernet and next genera-

tion MIL-STD-1553. The BALUN allows design engineers to characterize dif-

ferential mode devices using single-ended test equipment as shown below.

1

3

2

NETWORK

ANALYZER

50

USER’S

DIFFERENTIAL

INTERFACE

150

TWINAX CABLE

PSC BALUN

P/N HFB050150

Insertion loss S21 is measured with two units connected back to back as shown.

Note 1: Correct value of S21 for each DUT will be 1/2 of the value shown in graph.

Note 2: Return loss S11 is measured on 50 ohm port with 150 ohms termination on balance port.

Typical Return Loss - S11

50 ohm Unbalanced Port

Typical Insertion Loss - S21

Two Baluns Configured Back to Back

-4 dB

1.2 GHz

1.0 MHz

1.2 GHz

0 dB

.5 dB/div

-15 dB

2 dB/div

1.0 MHz

NETWORK ANALYZER

CH-1

CH-2

DUT #1

DUT #2

Frequency (MHz)

Frequency (MHz)