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IC-E1/T1/PRI/CEPT - Dual Guide


IC-E1/T1/PRI/CEPT Transformers


We offer a wide range of transformers for all 1.544 and 2.048Mbbs applications. A full listing of LlU Transceiver IC's with recommended Talema transformers is listed on the following cross reference chart.

Performance has been proven in the many design-ins of our products in these applications. Quality and consistency is guaranteed through 100% testing of the specified parameters for Primary Inductance, Leakage Inductance, Turns Ratio, DC resistance and Interwinding Capacitance. This ensures that the Return Loss and Pulse Wave shape requirements of ITU-T G.703 and ANSI T1.102 can be met. Additionally all parts are 100% tested for 1,500V minimum isolation.

Temperature Performance
Products are offered for both standard temperature (Commercial 0° to +70°C) and extended temperature (Industrial -40° to +85°C) applications. Required minimum inductance levels are maintained at the lower temperature limits. Advanced design means that the MJM series may be used for either temperature classification.

Series Types
IS2M Series   Single Transformer in 6 pin through hole package  
MJM Series   Miniature Dual Transformer Modules in SMD package  


IC - E1/T1/PRI/CEPT Interface Transformer Cross Reference Guide

IC
Manufactuer		 IC
Part Number		 Application Talema Transformer Part Number
Single DIL 16 Pin Dual SMD 12 Pin Dual SMD
Standard Temp. Extended Temp. Standard &
Extended Temp		 Standard &
Extended Temp
Transmit Receive Transmit Receive Tx/Rx Tx/Rx
Cirrus
(Crystal)		 CS61304A T1 IS2M-8 IS2M-7 IS2M-21 IS2M-19 MJM-019 MJS-019
CS61304A E1 IS2M-12 IS2M-7
IS2M-19 MJM-025 MJS-025
CS61305A T1 IS2M-8 IS2M-7 IS2M-21 IS2M-19 MJM-019 MJS-019
CS61305A E1 IS2M-12 IS2M-7   IS2M-19 MJM-025 MJS-025
CS61535A T1 IS2M-8 IS2M-7 IS2M-21 IS2M-19 MJM-019 MJS-019
CS61535A E1 IS2M-12 IS2M-7   IS2M-19 MJM-025 MJS-025
CS61574A/75 T1 IS2M-8 IS2M-7 IS2M-21 IS2M-19 MJM-019 MJS-019
CS61574A/75 E1 IS2M-12 IS2M-7   IS2M-19 MJM-025 MJS-025
CS61577 E1/T1 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-017 MJS-017
CS61584A IQ3 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-017 MJS-017
CS61584A IQ5 IS2M-8 IS2M-8 IS2M-21 IS2M-21 MJM-013 MJS-013
CS61582 E1/T1 IS2M-8 IS2M-8 IS2M-21 IS2M-21 MJM-013 MJS-013
CS61583 E1/T1 IS2M-8 IS2M-8 IS2M-21 IS2M-21 MJM-013 MJS-013
CS61310 T1-H/ware Mode IS2M-7 IS2M-15 IS2M-19   MJM-018 MJS-018
CS61310 T1-Host Mode IS2M-16 IS2M-15     MJM-026  
CS61318 E1-120R IS2M-7 IS2M-15 IS2M-19   MJM-018 MJS-018
CS61318 E1-75R   IS2M-15        
CS61581 E1-H/ware IS2M-7 IS2M-15 IS2M-19   MJM-018 MJS-018
CS61581 E1-Matched Imp IS2M-16 IS2M-15     MJM-026  
Cologne Chip HFC-E1 S2M         MJM-022  
Exar XRT5683A T1/E1/T2/E2 IS2M-6 IS2M-6 IS2M-19 IS2M-19 MJM-017 MJS-017
XRT56L85 T1/CEPT IS2M-6 IS2M-6 IS2M-19 IS2M-19 MJM-017 MJS-017
XRT5793 E1 IS2M-12       MJM-025 MJS-025
XRT5794 E1 IS2M-12       MJM-025 MJS-025
XRT5894 E1 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-017 MJS-017
XRT5897 E1 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-017 MJS-017
XRT7288 CEPT IS2M-10 IS2M-7   IS2M-19 MJM-028 MJS-028

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IC - E1/T1/PRI/CEPT Dual SMD Interface Transformer Cross Rerefence Guide

IC
Manufactuer		 IC
Part Number		 Application Talema Transformer Part Number
Single DIL 16 Pin Dual SMD 12 Pin Dual SMD
Standard Temp. Extended Temp. Standard &
Extended Temp		 Standard &
Extended Temp
Transmit Receive Transmit Receive Tx/Rx Tx/Rx
Dallas DS21352L(N) T1 IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
DS21552L(N) T1 -Note 1 IS2M-8 IS2M-15 IS2M-21 IS2M-20 MJM-019 MJS-019
DS21552L(N) T1 -Note 1 IS2M-10 IS2M-15   IS2M-20 MJM-028 MJS-028
DS21354L(N) E1 IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
DS21554L(N) E1 - Note 1 IS2M-8 IS2M-15 IS2M-21 IS2M-20 MJM-019 MJS-019
DS21554L(N) E1 - Note 1 IS2M-10 IS2M-15   IS2M-20 MJM-028 MJS-028
DS2187 T1/CEPT IS2M-10 IS2M-7   IS2M-19 MJM-028 MJS-028
DS2148/Q8 T1/E1/J1-5V IS2M-10 IS2M-15   IS2M-20 MJM-028 MJS-028
DS2148/Q8 T1/E1/J1-3.3V IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
DS2151Q, DS2152 T1 -Note 1 IS2M-8 IS2M-15 IS2M-21 IS2M-20 MJM-019 MJS-019
DS2151Q, DS2152 T1 -Note 1 IS2M-10 IS2M-15   IS2M-20 MJM-028 MJS-028
DS2153Q, DS2154 E1 IS2M-8 IS2M-15 IS2M-21 IS2M-20 MJM-019 MJS-019
Infineon
(Siemens)		 PEB2235 T1/CEPT - Note 2         MJM-027 MJS-027
PEB2254, PEB2255 E1/T1 - Note 3     IS2M-23 IS2M-23 MJM-010 MJS-010
PEB2254, PEB2255 E1/T1 - Note 3     IS2M-23 IS2M-23 MJM-021 MJS-021
PEB2256 E1/T1         MJM-022  
PEB22320 CEPT 120R         MJM-023  
Level One LXT300Z E1/T1 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-018 MJS-018
LXT301Z E1/T1 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-018 MJS-018
LXT304A E1/T1 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-018 MJS-018
LXT305A T1 IS2M-8 IS2M-7 IS2M-21 IS2M-19 MJM-019 MJS-019
LXT307 T1 IS2M-11 IS2M-7   IS2M-19 MJM-016  
LXT307 E1 - Note 4 IS2M-15 IS2M-7 IS2M-20 IS2M-19 MJM-018 MJS-018
LXT307 E1 - Note 4 IS2M-7   IS2M-19      
LXT310 T1 IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
LXT312, LXT315 T1   IS2M-15   IS2M-20    
LXT317 DECT IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
LXT318 E1 120R IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
LXT318 E1 75R   IS2M-15   IS2M-20    
LXT331 E1/T1 - Note 4 IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
LXT331 E1/T1 - Note 4 IS2M-11 IS2M-15   IS2M-20 MJM-016 MJS-016
LXT331 E1/T1 - Note 4 IS2M-8 IS2M-15 IS2M-21 IS2M-20 MJM-019 MJS-019
LXT332 E1/T1 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-017 MJS-017
LXT334 E1/T1 120/100R IS2M-15 IS2M-15 IS2M-20 IS2M-20 MJM-018 MJS-018
LXT334 T1 100R IS2M-16 IS2M-15 IS2M-20 IS2M-20 MJM-026  
LXT335 E1 120/75R IS2M-10 IS2M-15   IS2M-20 MJM-028 MJS-028
LXT335 120/75R Line Match IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
LXT335 75R Low Power IS2M-12 IS2M-15   IS2M-20 MJM-025 MJS-025
LXT335 75R IS2M-18 IS2M-15   IS2M-20    
LXT336 120/75R IS2M-7   IS2M-19      
LXT350 T1 IS2M-8 IS2M-15 IS2M-21 IS2M-20 MJM-019 MJS-019
LXT351 T1/E1 IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
LXT351 E1 120R IS2M-11 IS2M-15   IS2M-19 MJM-016  
LXT359 T1 IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
LXT360 E1 IS2M-11 IS2M-15   IS2M-20 MJM-016  
LXT361 T1 100R IS2M-8 IS2M-15 IS2M-21 IS2M-20 MJM-019 MJS-019
LXT361 T1 100/120/75R IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
LXT361 E1 75R IS2M-17 IS2M-15   IS2M-20    
LXT380, 381, 382 E1 IS2M-7 IS2M-15 IS2M-19 IS2M-20 MJM-018 MJS-018
LXT384, LXT386 T1/E1 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-017 MJS-017
Lucent
(AT&T)		 17288 CEPT/E1 IS2M-10 IS2M-6   IS2M-19 MJM-028 MJS-028
17289A DS1 IS2M-8 IS2M-7 IS2M-21 IS2M-19 MJM-019 MJS-019
17290A T1/CEPT IS2M-10 IS2M-6   IS2M-19 MJM-028 MJS-028
17690 DS1 IS2M-8 IS2M-8 IS2M-21 IS2M-21 MJM-013 MJS-013
17690 CEPT IS2M-10 IS2M-10        
17693 DS1 IS2M-7 IS2M-7 IS2M-19 IS2M-19 MJM-017 MJS-017
PMC - Sierra PM4341A DSX-1 IS2M-6 IS2M-10 IS2M-19   MJM-028 MJS-028
PM4351 E1/T1         MJM-029  
PM6341 E1 IS2M-6 IS2M-10 IS2M-19   MJM-028 MJS-028


Notes:
  1. Dallas IC's use either a 1:1.15 or a 1:1.36 ratio transformer depending on the application. Consult the Dallas application notes or contact us.
  2. Consult Siemens Application Note 12.90 ("Just a Single Line Transformer Type for all IPAT (PEB2235) Applications") for calculation of resistor values.
  3. The Dual Transformer types MDM-010 and MDM-021 are electrically identical but have different schematics. Either part may be used with the PEB2254 and PEB2255.
  4. See Level One Application Note 118 ("Transformer Specifications for Level One Transceiver Applications") for further details on the choice of transformer ratios.


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