TX1193NLT

## T1/E1/CEPT/ISDN-PRI INTERFACE MODULES 

_Four Transformer Modules for Dual SMT T1/E1 Ports, Extended Temperature Range_ 

@® Optimized for enhanced EMC performance = _SMT Dual Port package contains transformers with optional common mode chokes on both transmit and receive channels_ @ Models matched to leading. transceiver. ICs _Patented Interlock Base construction for high-reliability_ @& _Recognized to UL 1950_ @ _Isolation Voltage: 1500 Vrms_ 

|||||||||Electrical Specifications @ 25°C|Electrical Specifications @ 25°C|Electrical Specifications @ 25°C||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**RoHS Compliant**<br>**Part Number**||||**Turns Ratio**<br>(Pri: Sec<br>�2%)||||**Secondary**||||||||**Primary Pins**|||**Primary Pins**|
|||||||||**OCL @ 25 C**||**Cw/w**||**DCR Pri**||**Package/**||||||
|**w/CMC**||**wo/CMC**||**Transmit**||**Receive**||(mH MIN)||(pF MAX)||( MAX)||**Schematic**||**Transmit**|||**Receive**|
|EXTENDED TEMPERATURE RANGE MODELS    - OPERATING TEMPERATURES**-40 C TO +85 C**||||||||||||||||||||
|||||||||||||||||||||
|**T1176NL**||-||1CT:2.4CT||1CT:1CT||1.20||35||.80||WAT/2||1-3 & 10-12|||21-19 & 18-16|
|||||||||||||||||||||
|**TX1192NL**||-||1CT:2.42CT||1CT:2.42CT||1.20||25||.80||WAT/1||4-6 & 10-12|||1-3 & 7-9|
|||||||||||||||||||||
|**TX1193NL**||**TX1323NL**||1CT:2CT||1CT:1CT||1.20||35||.80||WAT/1||4-6 & 10-12|||24-22 & 18-16|



**Notes:** 

**1. Extended Temperature Range Models** - For extended temperature range transformers (-40 C to +85 C operating temperature range), OCL (Open Circuit Inductance) is specified at both -40 C and +25 C.  At -40 C, OCL is 600 H minimum. All other parameters are specified at +25 C only. **2. Turns ratio** is specified primary: secondary (CT = Center Tap). 

**3. Standard packaging** for the surface mount package is anti-static tubes. Optional Tape & Reel can be ordered by adding a “ **T** ” suffix to the part number, (i.e T1176NL **T** ). 

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_Four Transformer Modules for Dual SMT T1/E1 Ports, Extended Temperature Range_ 

## T1/E1/CEPT/ISDN-PRI INTERFACE MODULES 

## Application Notes 

**1.  Flammability** - Materials used in these products are recognized as UL94-VO approved. Products meet the requirements of IEC 695-2-2 (Needle Flame Test). 

**2. Balance Characteristics** - The transformers meet the requirements for longitudinal balance of FCC part 68. 

## **Frequency    50-100 KHz    100KHz-2 MHz    2-3 MHz** 

Return Loss XMIT       9 dB                    15 dB             11 dB RCV      12 dB                    18 dB             14 dB 

**3. Common Mode Rejection Ratio** - the CMRR for all transformers is better than 50 dB at 1 MHz. 

**4. Crosstalk Attenuation** - In the packages which contain transmit and receive transformers side by side, sufficient crosstalk attenuation is achieved by the inherent charact -eristics of the toroid cores as well as by their proper pos -itioning. The crosstalk attenuation is typically 65 dB or better. 

   **6.  General information** - The transformers are specifically designed for use in 1.544 Mbps (T1), 2.048 Mbps (CEPT) and ISDN Primary Rate Interface (PRI) applications. They are matched to the majority of the line interface transceiver ICs currently available. Use of the proper trans -former allows the interface circuit to comply with ITU-T G.703 and other standards regarding pulse waveform, return loss, and balance. 

**5. Return Loss** - ITU-T G703 and the European national regulatory documents specify minimum return loss levels. The transformers will allow these limits to be complied within the situations where they are applicable. 

For More Information **Pulse Worldwide Pulse Europe Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia Headquarters** Einsteinstrasse 1 B402, Shenzhen Academy of Room 2704/2705 135 Joo Seng Road 3F, No. 198 12220 World Trade Drive D-71083 HerrenAerospace TechnolSuper Ocean Finance #03-02 Zhongyuan Road San Diego, CA berg ogy Bldg. Ctr. PM Industrial Bldg. Zhongli City 92128 Germany 10th Kejinan Road 2067 Yan An Road Singapore 368363 Taoyuan County 320 U.S.A. High-Tech Zone West Taiwan R. O. C. Nanshan District Shanghai 200336 Tel: 886 3 4356768 Shenzen, PR China China Tel: 65 6287 8998 Fax: 886 3 4356823 (Pulse) Tel: 858 674 8100 Tel: 49 7032 78060 518057 Fax: 65 6287 8998 Fax: 886 3 4356820 (FRE) Fax: 858 674 8262 Fax: 49 7032 7806 135 Tel: 86 755 33966678 Tel: 86 21 62787060 Fax: 86 755 33966700 Fax: 86 2162786973 

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, 2012. Pulse Electronics, Inc. All rights reserved. 

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