B4025

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) 138 kHz to 1 MHz: 13.5 2:1 1:1 0.5 Ω 1 MHz to 20 MHz: 20 138 kHz to 20 MHz: 0.5 1 MHz to 20 MHz: 25 Insertion Loss* (dB MAX) Transhybrid Loss (dB MIN) 138 kHz to 1 MHz: 30 Longitudinal Balance (dB MIN) 138 kHz to 300 kHz: 60 300 kHz to 1 MHz: 50 1 MHz to 20 MHz: 30 2000 Isolation Voltage (Vrms) 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 1.000 MAX 25,40 B4008 .405 MAX 10,29 B4025 .100 2,54 .700 17,78 B4025 Date Code Country of Origin .505 MAX 12,83 Date Code Country of Origin .540 13,72 .300 MAX 7,62 .100 2,54 .700 17,78 1.005 MAX 25,53 .235 MAX 5,97 .004/0,10 16 SURFACES .012 0,30 .040 1,02 .100 2,54 SUGGESTED PAD LAYOUT .395 10,03 0° – 8° 16 x .040 1,02 .100 2,54 .200 5,08 .300 7,62 DIA 13X .020 0,51 .120 3,05 Schematics B4008 1 2 4 5 1:1 2:1 19 17 B4025 1 2 4 5 12 13 7 8 2:1 16 15 Weight ...............2.8 grams Tube ......................20/tube Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 6 7 9 10 14 13 12 1:1 11 10 For More Information : UNITED STATES (Worldwide) 12220 World Trade Drive San Diego, CA 92128 U.S.A. http://www.pulseeng.com TEL: 858 674 8100 FAX: 858 674 8262 Pin 13: Internal connection only Pin 10: Internal connection only 9 UNITED KINGDOM (Northern Europe) 1 & 2 Huxley Road The Surrey Research Park Guildford, Surrey GU2 5RE United Kingdom TEL: 44 1483 401700 FAX: 44 1483 401701 FRANCE SINGAPORE (Southern Europe) (Southern Asia) 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 6287 8998 FAX: 65 6280 0080 TAIWAN, R.O.C. (Northern Asia) 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 HONG KONG (China/Hong Kong) 9/F, Phase 2, Tai Sang Shatin Warehouse Centre 6 Wong Chuk Yeung Street Fotan, Shatin, Hong Kong TEL: 852 2788 6588 FAX: 852 2776 1055 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. ©2003, Pulse Engineering, Inc. B925.A (11/03)