RF Balun Transformers For Wideband RF Applications Low cost construction Miniature surface mount package Excellent insertion loss Ideal for balanced-to-unbalanced applications Designed for: • CATV Distribution/Drop Amplifiers • Set Top Boxes • Residential Gateways Electrical Specifications @ 25°C - Operating Temperature -40°C to +85°C Insertion Loss 2 Amplitude Unbalance Return Loss Standard Part Number RoHS-6 Compliant Part No. Impedance Ratio 1 (Pri:Sec ±2%) 10MHz (TYP/MAX) 50-750MHz 750-1000MHz (TYP/MAX) (TYP/MAX) 10MHz (TYP/MIN) Phase 50-750MHz 750-1000MHz Unbalance (TYP/MIN) (TYP/MIN) (50/1000MHz) (50MHz) (100-1000MHz) CX2024 CX2024NL 1:1 0.46/1.00dB 0.37/0.50dB 0.48/0.60B >40/20dB >30/20dB 30/16dB 20� MAX 1.4dB MAX 1.25dB MAX CX2024A CX2024ANL 1:1 0.46/1.00dB 0.37/0.50dB 0.48/0.60B >40/20dB >30/20dB 30/16dB 20� MAX 1.4dB MAX 1.25dB MAX 50MHz (TYP/MAX) 208MHz (TYP/MAX) 870MHz (TYP/MAX) 50MHz (TYP/MAX) 208MHz (TYP/MAX) 870MHz (TYP/MAX) 50-870MHz 50MHz 100-870MHz 0.40/1.00B 0.40/1.00B 0.6/1.0B >30/20dB 30/20dB 22/18dB CX2149 CX2149NL 1:1 ±4� from 180� 1.4dB MAX 1.3dB MAX Notes: 1. Part with cover plate is designated CX2024A. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part numbe (ex: CX2024T or CX2024AT). Mechanical Schematic CX2024/NL, CX2024A/NL & CX2149/NL Tape & Reel ............................................2000/reel Tray ...........................................................100/tray Power Rating ................30 mA MAX; 0.25 W MAX Inches Dimensions: mm 1 Unless otherwise specified, all tolerances are ± .010 0,25 USA 858 674 8100 Germany 49 7032 7806 0 1 Singapore 65 6287 8998 pulseelectronics.com Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768 C217.C (05/12) RF Balun Transformers For Wideband RF Applications Application Notes A. Bandwidth specifications for CX2024, CX2024A and CX2149 are for 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. D. Pick and place operation: smooth upper surface of device allows automatic pick and place. Notes from Tables 1. Impedance and turns ratios are specified primary :secondary. 2. These transformers are verified to operate from -40�C to +85�C. Contact Applications Engineering for performance data. For More Information Pulse Worldwide Headquarters 12220 World Trade Drive San Diego, CA 92128 U.S.A. Pulse Europe Einsteinstrasse 1 D-71083 Herrenberg Germany Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia B402, Shenzhen Academy of Room 2704/2705 135 Joo Seng Road 3F, No. 198 Aerospace TechnolSuper Ocean Finance #03-02 Zhongyuan Road ogy Bldg. Ctr. PM Industrial Bldg. Zhongli City 10th Kejinan Road 2067 Yan An Road Singapore 368363 Taoyuan County 320 High-Tech Zone West Taiwan R. O. C. Nanshan District Shanghai 200336 Tel: 886 3 4356768 Shenzen, PR China China Tel: 65 6287 8998 Fax: 886 3 4356823 (Pulse) Tel: 858 674 8100 Tel: 49 7032 78060 518057 Fax: 65 6287 8998 Fax: 886 3 4356820 (FRE) Fax: 858 674 8262 Fax: 49 7032 7806 135 Tel: 86 755 33966678 Tel: 86 21 62787060 Fax: 86 755 33966700 Fax: 86 2162786973 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, 2012. Pulse Electronics, Inc. All rights reserved. 2 pulseelectronics.com C217.C (05/12)