ADSL Line Transformers For Texas Instruments’ CPE Chipsets ADSL/ADSL2+ CPE Transformers for POTS and ISDN applications, matched to Texas Instruments AR7, AU7 and AP7 chipset Designed to meet EN60950 supplementary insulation requirements for working voltages up to 250Vrms Electrical Specifications @ 25°C - Operating Temperature -40°C to +85°C RoHS-5 Compliant Part Number RoHS-6 Compliant Part Number OCL (mH ±5%) Turns Ratio (line:chip) Isolation Voltage (Vrms) THD @ 30kHz (dB MIN) BX2479H BX2479HNL 1.50 2:1 1500 -85 1.50 2:1 1500 -85 BX2479W 1 BX2479WNL BX2243H 1 BX2243HNL BX2443W 1 BX2900W 1 0.40 2:1 1500 -85 BX2443WNL 1 0.40 2:1 1500 -85 BX2900WNL 1 0.10 2:1 1500 -85 Notes: 1. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number (ex. BX2479WT and BX2479WNLT). Mechanicals BX2479H / BX2243H (and NL versions) BX2479H / BX2243H (and NL versions) Weight .....6.2 grams Tray...............65/tray Weight .....6.2 grams Tray...............60/tray Inches Dimensions: Unless otherwise specified, all tolerances are ± .010 mm 0,25 Schematic For More Information Pulse Worldwide Headquarters 12220 World Trade Drive San Diego, CA 92128 U.S.A. Pulse Europe Einsteinstrasse 1 D-71083 Herrenberg Germany Tel: 858 674 8100 Fax: 858 674 8262 Tel: 49 7032 78060 Fax: 49 7032 7806 135 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 Pulse South Asia 135 Joo Seng Road #03-02 PM Industrial Bldg. Singapore 368363 Tel: 86 21 62787060 Fax: 86 2162786973 Tel: 65 6287 8998 Fax: 65 6287 8998 Pulse North Asia 3F, No. 198 Zhongyuan Road Zhongli City Taoyuan County 320 Taiwan R. O. C. Tel: 886 3 4356768 Fax: 886 3 4356823 (Pulse) Fax: 886 3 4356820 (FRE) 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. 1 pulseelectronics.com B834.D (02/12)