GIGABIT DUAL TRANSFORMERS For Use with 150 Ω Twinax Cable Compliant with ANSI X3T9.5, FC-PH-3 Fibre Channel Physical Layer Specification Compliant with IEEE 802.3z PMD Designed for fast rise-time and a low frequency cutoff of 2.5 MHz IC grade transfer-molded package withstand 245°C peak temperature profile Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C Primary Inductance Rise Time Low Frequency Part Turns Ratio DCR Hi-Pot OCL (µH MIN) (ps MAX) Cutoffw Number (±6%) (Ω MAX) (VRMS) (@ 20 mVRMS, 100 kHz) 20-80% (-3 dB) A6802NL 1:1 5.50 0.21 1500 280 < 2.5 MHZ Mechanical Schematics A6802NL .350 8,89 .090 .050 2,29 1,27 .500 .010 ± 1:1 12,70 0,25 1 16 .460 .280 11,68 7,11 .420 .295 A6802NL 3 14 10,67 7,49 Date Code Cntry of Origin T1 .030 0,76 1:1 6 11 SUGGESTED PAD LAYOUT .018 X 16 0,46 8 9 .220 .010 ± T2 5,59 0,25 0–8° .050 .004/0,10 .020 X 7 MIN 1,27 16 SURFACES .005 .015 0,51 – 0,13 0,38 .350 8,89 Weight . . . . . . . . . . . . . 1.4 grams Inches Tape & Reel . . . . . . . . . . .500/reel Dimensions: mm Tube . . . . . . . . . . . . . . . . . 45/tube .005 Unless otherwise specified, all tolerances are ± 0,13 NOTE: For lower speed Fibre Channel applications, please refer to application note on data sheet A101. USA 858 674 8100 Germany 49 7032 7806 0 Singapore 65 6287 8998 Shanghai 86 21 32181071 China 86 755 33966678 Taiwan 886 3 4643715 www.pulseeng.com 1 A100.C (11/09) GIGABIT DUAL TRANSFORMERS For Use with 150 Ω Twinax Cable Application Notes: these devices minimizes data dependent jitter by providing fast Pulse has designed Gigabit Dual Transformers specifically for signal rise times. The dual package allows connection of both point to point coupling to 150 Ω Twinax cable. The isolation the transmit and receive channels as shown in the application transformers protect the station from static charges that may circuit below. Surface mount packaging also allows a cost- develop on the cable and prevent ground loop currents from effective solution. The transformers are available in either tubes being transferred between stations. The devices have also or Tape & Reel packaging. been designed to provide common mode rejection within the transmission band and thus reduce EMI. The bandwidth of 1. R1 and R2 values should be based upon the transmit 2. When designing PCB layout, transmission line amplitude required for the system. Placing a short methods must be utilized to maintain return loss and (0 Ω) will result in maximum amplitude. However, signal integrity. Transformer should be located within doing so will result in distortion on the output due 1” of cable connector. 2 2 to impedance mismatch. For optimum design, R1 3. tr = [(tr ) - (tr ) ] transformer out in and R2 should be approximately 68 Ω for each leg. 4. The typical application circuit shown above is a sug- This will result in a -6.0 dB insertion loss (transmitter gested layout. Actual board layout may vary based section). If this is too much insertion loss, then at upon individual applications and EMC concerns. least a 15 Ω for R1 and R2 is recommended. NOTE: Insertion Loss of Transmitter: These gigabit dual transformers are packaged in tubes unless Tape Req = R1 + R2 and Zo = 150 Ω & Reel is specified. When ordering, add the suffix “T” (i.e. A6801NLT) Insertion Loss = 20 log [Zo / Req + Z0] for “Tape & Reel” packaging in increments of 500. For More Information: Pulse Worldwide Pulse Europe Pulse North China Pulse South Pulse China Headquarters Pulse North Asia Headquarters Einsteinstrasse 1 Room 2704/2705 Asia B402, Shenzhen Academy of 3F, No. 198 135 Joo Seng Rd. 12220 World Trade Dr. D-71083 Herrenberg Aerospace Technology Bldg. Super Ocean Finance Ctr. Zhongyuan Rd. #03-02 San Diego, CA 92128 Germany 10th Kejinan Rd. 2067 Yan An Rd. West Zhongli City PM Industrial Bldg. U.S.A. High-Tech Zone Shanghai 200336 Taoyuan County 320 Singapore 368363 China Nanshan District Taiwan R. O. C. www.pulseeng.com Shenzen, PR China 518057 Tel: 886 3 4356768 Tel: 65 6287 8998 Tel: 858 674 8100 Tel: 49 7032 7806 0 Tel: 86 755 33966678 Tel: 86 21 62787060 Fax: FRE 886 3 4356820 Fax: 65 6287 8998 Fax: 858 674 8262 Fax: 49 7032 7806 135 Fax: 86 755 33966700 Fax: 86 2162786973 Pulse: 886 3 4356823 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, 2009. Pulse Engineering, Inc. All rights reserved. www.pulseeng.com 2 A100.C (11/09)