IC-E1/T1/PRI/CEPT - Dual Guide
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 | ||
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:
- 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.
- Consult Siemens Application Note 12.90 ("Just a Single Line Transformer Type for all IPAT (PEB2235) Applications") for calculation of resistor values.
- 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.
- 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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