ADSL LINE TRANSFORMERS For Use With Centillium Chipsets For use with Centillium's CopperFlite™ CT-L50SC04/CT-L50ST81 and CopperLite™ CT-L21SC08/CT-L41SC04 chipsets Excellent THD performance Small footprint Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C Part Number Mounting Matched to Chipset Number Application B2178 B2189 SMT SMT CT-L21SC08/CT-L41SC04 CT-L50SC04/CT-L50ST81 CO CO/CPE Turns Ratio (± 2%) (line - chip) 1:1 1.8:1 OCL (± 10%) (1-4) with (2-3) short 450 µH @ 10 KhZ, 0.1 V 450 µH @ 30 KhZ, 0.1 V Leakage Inductance @ 100 KhZ, 0.1 V (1-4) with (2-3), (7-10) and (8-9) short 5.0 µH MAX 7.0 µH MAX Additional Electrical Specifications Part Number THD (Linearity TYP - 10 kHz, 3.0 Vrms) B2178 B2189 £ £ -67 dB -67 dB DC Resistance Line Side Chip Side (1-4) with (2-3) short (10-7) with (9-8) short £ £ 1.3 W MAX 1.3 W MAX £ £ Isolation Voltage (Vrms) 1.3 W MAX 0.9 W MAX Longitudinal Balance (from 10 kHz to 1.1 MHz) 1500 1500 £ £ -50 dB -50 dB NOTE: Transformers are shipped in trays unless Tape & Reel packaging is specified by adding the suffix “T” to the part number (i.e. B2178T). Mechanical 10 X .028 ± .002 0,71 ± 0,05 .695 17,65 MAX .530 13,46 MAX B21XX Date Code Country of Mfg. Schematics .605 15,37 1 .100 2,54 .098 2,50 3 2 .394 10,00 MAX 10 X .051 ± .002 1,30 ± 0,05 .516 13,11MAX B2178 .394 10,00 4 .098 2,50 1 8 9 1:1 B2189 3 2 .485 12,32 MAX 4 10 7 10 8 9 1.8:1 7 Weight . . . . . . . . . . . . . .6.2 grams Tray . . . . . . . . . . . . . . . . . .60/tray .005/0,13 10 SURFACES Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 For More Information : UNITED STATES (Worldwide) UNITED KINGDOM (Northern Europe) FRANCE (Southern Europe) SINGAPORE (Southern Asia) TAIWAN, R.O.C. (Northern Asia) 12220 World Trade Drive San Diego, CA 92128 U.S.A. http://www.pulseeng.com TEL: 858 674 8100 FAX: 858 674 8262 1 & 2 Huxley Road The Surrey Research Park Guildford, Surrey GU2 5RE United Kingdom TEL: 44 1483 401700 FAX: 44 1483 401701 Zone Industrielle F-39270 Orgelet France TEL: 33 3 84 35 04 04 FAX: 33 3 84 25 46 41 150 Kampong Ampat #07-01/02 KA Centre Singapore 368324 TEL: 65 287 8998 FAX:65 280 0080 3F-4, No. 81, Sec. 1 HsinTai Wu Road Hsi-Chih, Taipei Hsien Taiwan, R.O.C. Tel: 886 2 2698 0228 FAX: 886 2 2698 0948 DISTRIBUTOR 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. Printed on recycled paper. ©2001, Pulse Engineering, Inc. PRELIMINARY B979.P (4/01)