High Frequency Ceramic Solutions

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1 Page 1 of 5 General Specifications Part Number 245BM14A23 Frequency (MHz) Unbalanced Impedance 5 Ω Conjugate match compatible to Balanced Differential Impedance RTL8188EU, RTL8192EU and ST BlueNRG chipsets Insertion Loss (db) 1.2 max. Return Loss (db) 9.5 min. Phase Difference (degree) 18 ± 1 Amplitude Difference 2. max. Attenuation (db) 3 min.@48~5mhz Qty/Reel (pcs) 4, Power Capacity 2W max (CW) Operating Temperature Range Storage Temperature Range Recommended Storage Conditions for Unused product on T&R Storage Period You can download measured s-parameters of this component at: /chipset-ipc -4 ~ +85 C -4 ~ +85 C +5 ~ +35 C, Humidity 45~75%RH, 18 months. 18 months max. Part Number Explanation Packaging Style P/N Suffix Termination Style Bulk T & R 1% Tin Suffix = S Suffix = T Suffix = None E.g.. 245BM14A23S E.g.. 245BM14A23T E.g.. 245BM14A23(T or S) Mechanical Dimensions Terminal Configuration Inches Millimeter No Function No Function L.63 ± ±.1 1 GND 4 Balanced Port W.31 ±.4.8 ±.1 W 2 GND 5 DC feed + RF GND T.24 ±.4.6 ±.1 c 3 Balanced Port 6 Unbalanced Port a.8 ±.4.2 ±.1 a L b.8+.4/ /-.15 p c.6 ±.4.15 ±.1 g.12 ±.4.3 ±.1 T p.2 ±.2.5 ±.5 g b Note: Use a 1pF capacitor in shunt when using DC-Feed

2 Page 2 of 5 Mounting Considerations for Balun-Filter solder pads *Line width should be designed to match 5Ω characteristic impedance, depending on PCB materia and thickness..45 Solder Resist Land.5 * 1pF capacitor Through-hole (.3/.2) Do you need the layout/gerber files of the above? Go to: /nordic or send us a message a Recommended PCB Layout Ground via as close as possible to ground pad and underneath component to improve harmonic attenuation RTL8188EU L PCB material:fr4 L = as short as possible. These t Wd RTL8192EU differential lines can be of different shape from above as ST BlueNRG Wd Ws long as both lines are symmetrical and equal length Chipset Wd = recommended 7 8mil. Ws = must be designed as a 5Ohm Grounded CPW or DC voltage in for DC Bias Option transmission line, depending on PCB material and thickness. 1pF capacitor closets to DC feed pin if possible

3 Page 3 of 5 Component Characterization Diagram Port 3* Network Analyzer** Port 2* GND GN D Port 1(5 ) Port 1: Unbalanced Port Ports 2 and 3: Balanced Port IL=S ds21 RL=S ss11 and S dd22 Amp_balance = db(s(2,1)/s(3,1)) Phase_balance = Phase(S(2,1)/S(3,1)) 1pF *Impedance for ports 2 and 3 = Conjugate to Balanced Impedance/2 **E571B from Agilent Typical Electrical Characteristics (T=25 C) db(scs21) db(sdd22) db(sss11) db(sds21) m3 m4 m1 m5 m6 m3 2.4GHz db(sds21)=-1.88 m4 2.5GHz db(sds21)= m5 4.8GHz db(sds21)= m6 5.GHz db(sds21)= GHz db(sds21)= GHz db(sds21)= GHz db(sss11)= m1 2.5GHz db(sss11)= Amp_diff phase_diff p p Balanced Differential impedance setting: 33 + j2ω m1 2.45GHz Un_imp=.13 / impedance = j GHz 2.5GHz Amp_diff=-.12 Amp_diff= GHz 2.5GHz phase_diff= phase_diff=177.42

4 Page 4 of 5 Typical Electrical Characteristics (T=25 C) db(scs21) db(sdd22) db(sss11) db(sds21) m3 m4 m1 m5 m6 m3 2.4GHz db(sds21)=-1.11 m4 2.5GHz db(sds21)= m5 4.8GHz db(sds21)= m6 5.GHz db(sds21)= GHz db(sds21)= GHz db(sds21)= GHz db(sss11)= m1 2.5GHz db(sss11)= Amp_diff phase_diff Balanced Differential impedance setting: j26.6ω m1 2.45GHz Un_imp=.175 / GHz 2.5GHz Amp_diff=.17 Amp_diff= GHz 2.5GHz phase_diff= phase_diff= db(scs21) db(sdd22) db(sss11) db(sds21) m3 m4 m1 m5 m6 m3 2.4GHz db(sds21)=-1.14 m4 2.5GHz db(sds21)= m5 4.8GHz db(sds21)= m6 5.GHz db(sds21)= GHz db(sds21)= GHz db(sds21)= GHz db(sss11)= m1 2.5GHz db(sss11)= Amp_diff phase_diff Balanced Differential impedance setting: j18.5ω m1 2.45GHz Un_imp=.72 / i d j GHz 2.5GHz Amp_diff=-.45 Amp_diff= GHz 2.5GHz phase_diff= phase_diff=

5 Page 5 of 5 Application Notes, Layout Files, and more /chipset-ipc Packaging information Soldering Information /ipcpackaging.html /ipcsoldering-profile MSL Info /technical-notes/msl-rating.html Recommended Storage Condition and Max Shelf Life /ipcstorage-shelflife RoHS Compliance /technical-notes/rohs-compliance.html Antenna layout and tuning techniques /tuning Antenna layout review, tuning, and characterization services /ipcantennaservices

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