公司名称：深圳市毕天科技有限公司

BL 2012 Series Multilayer Chip Baluns Features Monolithic SMD with small, low-profile and light-weight type. ACX Advanced Ceramic X Applications 0.8 ~ 6 GHz wireless communication systems, including DECT/PACS/PHS/GSM/DCS phones, WLAN card, Bluetooth modules, Hyper-LAN, etc. Specifications Frequency Unbalanced Balanced Insertion Range Impedance Impedance Loss (MHz) (ohm) (ohm) (dB) VSWR @BW Phase Difference (degree) Amplitude Difference (dB) Part Number BL201210B2450_ 2400 ~ 2500 50 100 1.0 max. 2.0 max. 180 ± 10 2 max. Q’ty/Reel (pcs) Operating Temperature Range Storage Temperature Range Storage Period Power Capacity : 4000 : -40 ~ +85 oC o : +5 ~ +35 C, Humidity 45~75%RH : 12 months max. : 2W max. Part Number BL 2012 10 B 2450 /LF Type Balanced Impedance Central Frequency Soldering BL : Balun 10 : 100 ohm 2450 : 2450MHz =lead-containing /LF=lead-free Dimensions ( L × W ) Specification Code Packaging 2.0 × 1.25 mm B T: Tape & Reel B: Bulk Terminal Configuration No. Terminal Name Unbalanced Port (IN) GND or DC feed + RF GND Balanced Port (OUT1) No. Terminal Name Balanced Port (OUT2) GND NC ACX Dimensions and Recommended PC Board Pattern a W c L g b T p Advanced Ceramic X Unit : mm Mark Dimensions L 2.0 ± 0.1 W 1.25 ± 0.1 T 0.95 ± 0.1 a 0.3 ± 0.1 b 0.2 ± 0.1 c 0.3+0.1 /-0.2 g 0.35 ± 0.1 p 0.65 ± 0.05 Without DC feed 0.35 * 0.8 * Solder Resist 1.0 Land Through-hole (φ 0.3) * 0.30 With DC feed 0.35 * 0.8 * Solder Resist 1.0 Land Through-hole (φ 0.3) * 0.30 * Line width should be designed to match 50- characteristic impedance, depending on PCB material and thickness. ** By-pass capacitor should be connected when feeding DC power. ACX Equivalent Circuit Unbalanced Port λ/4 λ/4 Balanced Port1 λ/4 λ/4 Balanced Port2 Advanced Ceramic X Measuring Diagram Port 3* Network Analyzer** Port 2* GND Port 1(50 -) Port 1:Unbalanced Port Ports 2 and 3: Balanced Port IL=Sds21 RL=Sss11 Amp_balance = dB(S(2,1)/S(3,1)) Phase_balance = Phase(S(2,1)/S(3,1)) *Impedance for ports 2 and 3 = Balanced Impedance/2 **E5071B from Agilent GND Typical Electrical Characteristics (T=25oC) Insertion and Return Loss 0 -5 dif_amplitude Amplitude and Phase Balance 2.0 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 200 195 190 dif_phase 185 180 175 170 165 160 2.0 2.2 2.4 2.6 2.8 3.0 freq, GHz dB(RL) dB(IL) -10 -15 -20 -25 2.0 2.2 2.4 2.6 2.8 3.0 freq, GHz Notes The contents of this data sheet are subject to change without notice. Please confirm the specifications and delivery conditions when placing your order. Advanced Ceramic X Corp. 16 Tzu Chiang Road, Hsinchu Industrial District Hsinchu Hsien 303, Taiwan TEL:886-3-5987008 FAX:886-3-5987001