Surface Mount

Through Hole (1500Vrms)

Through Hole (3000Vrms)

Chip Manufacturer

Transmit

Receive

Transmit

Receive

Transmit

Receive

Lucent

T7296

PE-65967

–

PE-65966

–

PE-68629

–

Exar

XR-T7296

PE-65967

–

PE-65966

–

PE-68629

–

Silicon Systems

SSI 78P236, DS3

PE-65968

PE-65967

PE-65969

PE-65966

PE-68630

PE-68629

SSI 78P7200, DS3

PE-65968

PE-65967

PE-65969

PE-65966

PE-68630

PE-68629

SSI 78P7200, E3

PE-65968

PE-65968

PE-65969

PE-65969

PE-68630

PE-68630

SSI 78P2361, STS-1

PE-65968

PE-65967

PE-65969

PE-65966

PE-68630

PE-68629

SSI 78P2362, E3

PE-65968

PE-65967

PE-65969

PE-65966

PE-68630

PE-68629

Transwitch

PE-65968

PE-65967

PE-65969

PE-65966

PE-68630

PE-68629

ART 02020 DS3, STS-1

PE-65967

PE-65967

PE-65966

PE-65966

PE-68629

PE-68629

T3/DS3/E3/STS-1 TRANSFORMERS

Designed for T3, DS3, E3 and

STS-1 Interfaces

Application Notes

1. The transformers have been developed for use as transmit

and receive transformers in T3 or DS3 links, using bit rates

of 44.736Mbps and B3ZS coding on coaxial cable. The

characteristics allow compliance with the pulse templates of

CCITT G.703 as well as ATT T.A.34. The transformers are

also suitable for the E3 interface at 34.368 Mbps with HDB3

coding or STS-1 applications, at 51.84 Mbps according to

Bellcore TA-NWT-000253. The LC-1 and QC-1 packages are

pin compatible with T1-1 and T4-1 6-pin DIP packages.

2. Bandwidth specifications are typical in a 75

Ω system.

Return loss meets the requirements of G.703. Materials used

in the products are UL94-V0 recognized. Products meet the

requirements of IEC 695-2-2 (Needle Flame Test).

3. The surface mount LS-1 and TR-2 packages are available with

optional tape and reel packaging. To order, add a “T” suffix to

the part number (i.e.: PE-65967NLT).

4. The Transwitch MRT TXC-02050 chip is also designed to

operate in 6.312 and 8.448 Mbps interfaces. A 1:1 transformer

(PE-64934) is recommended.

Transformer Selection Guide

.275 MAX

7,00

SUGGESTED PAD LAYOUT

.250 MAX

6,35

0.75

1,91

.258

6,55

.040

1,02

.240

6,10

.100

2,54

.200

5,08

.390

9,91

1

2

3

6

54

.300 MAX

7,62

PE-XXXX

DATE CODE

Dimensions: Inches

mm

Unless otherwise specified all tolerances are ±.010

0,25

C

3

1

4

6

2

E

3

1

4

6

Mechanical

Schematics

LS-1

For More Information:

Pulse Worldwide

Headquarters

12220 World Trade Dr.

San Diego, CA 92128

U.S.A.

www.pulseeng.com

Tel: 858 674 8100

Fax: 858 674 8262

Pulse South Asia

150 Kampong Ampat

#07-01/02

KA Centre

Singapore 368324

Tel: 65 6287 8998

Fax: 65 6280 0080

Pulse North Asia

No. 26

Kao Ching Rd.

Yang Mei Chen

Tao Yuan Hsien

Taiwan, R. O. C.

Tel: 886 3 4641811

Fax: 886 3 4641911

Pulse China Headquarters

B402, Shenzhen

Tech-Innovation International

Tenth Kejinan Rd.

High-Tech Industrial Park

Nanshan District, Shenzhen

China

Tel: 86 755 33966678

Fax: 86 755 33966700

Pulse North China

Room 1503

XinYin Building

No. 888 YiShan Rd.

Shanghai 200233

China

Tel: 86 21 54643211/2

Fax: 86 21 54643210

Pulse

Europe

Einsteinstrasse 1

D-71083 Herrenberg

Germany

Tel: 49 7032 7806 0

Fax: 49 7032 7806 12

www.pulseeng.com

T606.C (11/07)

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, 2007. Pulse Engineering, Inc. All rights reserved.