RF TRANSFORMER For Wideband RF Applications RoHS peak reflow temperature rating: 245°C For single-ended to balanced applications Value-oriented construction Small surface mount package Excellent insertion loss Various impedance ratios available Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C Turns Ratio1 Pri:Sec (±2%) 1:1 Bandwidth 2, 3 (MHz TYP) CX2078NL Impedance Ratio1 Pri:Sec (±2%) 1:1 5-500 Insertion Loss @ Midband (dB) 0.6 CX2081NL 1:1.5CT 1:1.2CT 5-125 0.9 B CX2156NL 1:1 1:1 2.3 - 2700 0.2 A Part Number 4 1. 2. 3. 4. Schematic A Impedance and turns ratios are specified primary:secondary. (CT=Center Tap). Bandwidth is referenced to midband loss. These transformers are verified to operate from -40°C to +85°C. Contact Applications Engineering for performance data. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number (ex: CX2078NLT). Mechanical Schematic CX2078NL, CX2081NL, CX2156NL A 3 4 1 6 1 B 6 2 3 SEC:PRI 4 Weight . . . . . . . . . . . . . . . 0.43 grams Tape & Reel . . . . . . . . . . . . 2200 /reel Tray . . . . . . . . . . . . . . . . . . . 100 /tray Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 USA 858 674 8100Germany 49 7032 7806 0Singapore 65 6287 8998Shanghai 86 21 62787060China 86 755 33966678Taiwan 886 3 4643715 www.pulseeng.com 1 C215.B (9/09) RF TRANSFORMER For Wideband RF Applications Application Notes A. Bandwidth specifications are typical in a 75 Ω system. B. Materials used in the products are UL94-V0 recognized. Products meet requirements of IEC 695-2-2 (Needle Flame Test). C. For additional impedance ratios and frequency ranges, please contact Applications Engineering. For More Information: Pulse Worldwide Headquarters 12220 World Trade Dr. San Diego, CA 92128 U.S.A. Pulse Europe Pulse China Headquarters Pulse North China Einsteinstrasse 1 D-71083 Herrenberg Germany B402, Shenzhen Academy of Aerospace Technology Bldg. 10th Kejinan Rd. Hwigh-Tech Zone Nanshan District Shenzen, PR China 518057 TEL: 86 755 33966678 FAX: 86 755 33966700 www.pulseeng.com Tel: 49 7032 7806 0 Tel: 858 674 8100 Fax: 49 7032 7806 135 Fax: 858 674 8262 Pulse South Asia Pulse North Asia Room 2704/2705 Super Ocean Finance Ctr. 2067 Yan An Rd. West Shanghai 200336 China 135 Joo Seng Rd. #03-02 PM Industrial Bldg. Singapore 368363 No. 26, Kao Ching Rd. Yang Mei Chen Taoyuan Hsien Taiwan R. O. C. Tel: 86 21 62787060 Fax: 86 2162786973 TEL: 65 6287 8998 FAX: 65 6280 0080 Tel: 886 3 4643715 Fax: 886 3 4641911 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 C215.B (9/09)