VDSL TRANSFORMERS For Use with Broadcom® BCM 6010/6020 Supports speeds up to 25.92 Mbps Provides two-wire to four-wire conversion Surface mount or through hole package Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C Part Number B4008 (THT) B4025 (SMT) Turns Ratio Trans. Rec. DCR (MAX) Return Loss (dB MIN) Insertion Loss* (dB MAX) 138 kHz to 1 MHz: 13.5 2:1 1:1 0.5 Ω Longitudinal Balance (dB MIN) Transhybrid Loss (dB MIN) 138 kHz to 1 MHz: 30 Isolation Voltage (Vrms) 138 kHz to 300 kHz: 60 300 kHz to 1 MHz: 50 138 kHz to 20 MHz: 0.5 1 MHz to 20 MHz: 20 1 MHz to 20 MHz: 25 2000 1 MHz to 20 MHz: 30 NOTE: Common Mode Chokes to reduce common mode ingress from AM Broadcast or HAM Radios are available. See data sheet B912 for parts B4001 and B4003. Surge Voltage Capability: Metallic: 800 Vpeak 10/560 µsec. Long.: 2400 Vpeak 10/700 µsec. Surge over the Extended Temperature Range: Insertion Loss can increase to 1 dB. Return Loss can drop to 7 dB from 138 kHz to 300 kHz, and 12 dB from 300 kHz to 1 MHz. Mechanicals B4008 B4025 1.000 MAX 25,40 B4008 .540 13,72 Date Code Country of Origin .100 2,54 .700 17,78 .300 MAX 7,62 .200 5,08 .505 MAX 12,83 B4025 .405 10,29 MAX Date Code Country of Origin .100 2,54 .700 17,78 .100 2,54 .100 2,54 .040 1,02 SUGGESTED PAD LAYOUT .395 10,03 1.005 MAX 25,53 .120 3,05 .235 MAX 5,97 .300 7,62 0° – 8° .012 0,30 .004/0,10 16 SURFACES 16 x .040 1,02 Schematics DIA 13X .020 0,51 B4008 1 2:1 2 4 Weight...............2.8 grams Tube......................20/tube Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 5 6 2:1 1 2 4 17 7 9 14 12 13 13 7 12 8 Pin 13: Internal connection only 1:1 11 10 Pin 10: Internal connection only UNITED STATES (Worldwide) UNITED KINGDOM (Northern Europe) FRANCE SINGAPORE (Southern Europe) (Southern Asia) TAIWAN, R.O.C. (Northern Asia) HONG KONG (China/Hong Kong) 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 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 19/F, China United Plaza 1008 Tai Nan West Street Cheung Sha Wan, Kowloon Hong Kong, China TEL: 852 2788 6588 FAX: 852 2776 1055 150 Kampong Ampat #07-01/02 KA Centre Singapore 368324 TEL: 65 287 8998 FAX: 65 280 0080 16 15 5 1:1 10 For More Information : B4025 19 9 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 products and/or registered trademarks of their respective owners. Printed on recycled paper. ©2002, Pulse Engineering, Inc. PRELIMINARY B925.P (7/02)