Ceramic Balun RF Transformer 50Ω NCS2-771+ 240 to 770 MHz 1:2 Ratio The Big Deal • • • • Tiny size, 0805 Low insertion loss, 0.2 dB Very good amplitude unbalance, 0.5 dB Low cost CASE STYLE: GE0805C-9 Product Overview Mini-Circuits NCS2-771+ is a miniature ceramic RF balun transformer with an impedance ratio of 2:1, covering a variety of 50Ω applications from 240 to 770 MHz. This model provides low insertion loss, low amplitude unbalance, and RF input power handling up to 2W. Fabricated using LTCC technology, it comes housed in a tiny package (0.08 x 0.05 x 0.04”) and is suitable for high-volume production. Key Features Feature Advantages Low insertion loss, 0.8 dB Enables excellent signal power transmission from input to output. Low amplitude unbalance, 0.8 dB Low unbalance can improve a system’s electromagnetic compatibility by rejecting unwanted common-mode noise. 2W power handling Supports a wide range of power requirements DC Isolation Provides DC isolation between circuits and efficient AC transmission, eliminating the need for external DC biasing components. Tiny size, 0805 Accommodates tight space requirements for dense PCB layouts. Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] Page 1 of 2 Ceramic Balun RF Transformer 50Ω 240 to 770 MHz NCS2-771+ 1:2 Ratio Features Maximum Ratings Operating Temperature -40°C to 85°C Storage Temperature -40°C to 85°C Input RF Power * 2W Permanent damage may occur if any of these limits are exceeded. * Passband rating. Derate linearly to 1W at 100°C. CASE STYLE: GE0805C-9 • miniature size, 0.079”x0.049”x0.037” • LTCC construction • low cost • aqueous washable +RoHS Compliant The +Suffix identifies RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications Applications • satellite • VHF/UHF • instrumentation Pad Connections PRIMARY DOT (Unbalanced Port) e and Reel Available Tapra cost at no ext Devices/Reel 20, 50, 100, 200, 500,1000, 2000 Reel Size 7” 2 PRIMARY (GND) 1,3 SECONDARY DOT (Balanced) 4 SECONDARY (Balanced) 6 NO CONNECTION 5 Electrical Specifications at 25°C Parameter Frequency (MHz) Min. PCB Land Pattern Max. Unit 2 Frequency Range Outline Drawing Typ. Impedance Ratio (secondary/primary) :1 240 — 770 MHz dB Insertion Loss1 Amplitude Unbalance 240 - 770 — 0.2 0.8 240 - 770 — 0.5 1.0 dB Phase Unbalance2 240 - 770 — 5 11 Degree 1. Insertion Loss is referenced to mid-band loss, 0.7 dB. Reference Demo Board TB-626+ 2. Relative to 180° Typical Performance Data at 25°C* INDEX AREA* FREQUENCY (MHz) 240 300 360 420 480 540 600 660 720 770 Suggested Layout Tolerance to be within ±.002 *Shape of index marking may vary Outline Dimensions ( inch mm ) C .037 0.94 D .014 0.36 G .026 0.66 H .014 0.36 J .039 1.00 K .110 2.80 E .012 0.30 F .012 0.30 wt grams .008 Demo Board MCL P/N: TB-626+ Suggested PCB Layout (PL-348) INPUT R. LOSS (dB) AMPLITUDE UNBALANCE (dB) PHASE UNBALANCE (Deg.) 0.93 0.72 0.70 0.73 0.78 0.84 0.90 0.97 1.05 1.13 13.53 20.55 19.91 17.10 15.26 14.00 12.94 12.01 11.16 10.50 0.61 0.64 0.62 0.58 0.50 0.37 0.21 0.03 0.16 0.32 5.64 6.42 6.55 6.08 5.05 3.59 1.78 0.55 3.25 5.77 *Measured with Agilent E5071B network analyzer using impedance conversion and port extension. NCS2-771+ INSERTION LOSS 1.4 1.2 1.0 0.8 0.6 240 346 452 558 NCS2-771+ AMPLITUDE UNBALANCE 1.0 1.6 AMPLITUDE UNBALANCE (dB) B .049 1.24 INSERTION LOSS (dB) A .079 2.0 INSERTION LOSS (dB) 664 770 0.8 0.6 0.4 0.2 0.0 240 346 452 558 664 770 FREQUENCY (MHz) FREQUENCY (MHz) NCS2-771+ PHASE UNBALANCE PHASE UNBALANCE (deg.) 10 configuration J 8 NO CONNECTION* PRI 6 4 SEC *Internal open circuit 2 0 240 346 452 558 664 770 FREQUENCY (MHz) Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits ® www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 [email protected] REV. OR M160266 NCS2-771+ ED-17012304 AVB/CP/AM 180124 Page 2 of 2