BALF-CC25-02D3 STMicroelectronics

BALF-CC25-02D3 50 ohm, conjugate match to CC2541 transformer balun Datasheet production data Description STMicroelectronics BAL-CC25-02D3 is an ultra miniature balun which integrates a matching network in a monolithic glass substrate. This has been customized for the CC2541 RF transceivers. Its a design using STMicroelectronics IPD (integrated passive device) technology on non- conductive glass substrate to optimize RF )OLS &KLS SDFNDJH performance. EXPSV Figure 1. Pin configuration (top view) Features 2.45 GHz balun with integrated matching 5)B1 6( network Matching optimized for following CC2541 Low insertion loss = Low amplitude imbalance *1 Low phase imbalance 5)B3 % Coated Flip-Chip on glass Small footprint: < 0.88 mm Benefits Figure 2. Application schematic (top view) Very low profile High RF performance PCB space saving versus discrete solution BOM count reduction Efficient manufacturability November 2015 DocID028619 Rev 1 1/11 This is information on a product in full production. www.st.com 11Characteristics BALF-CC25-02D3 1 Characteristics Table 1. Absolute maximum rating (limiting values) Symbol Parameter Value Unit P Input power RF 20 dBm IN IN ESD ratings MIL STD883C (HBM: C = 100 pF, R = 1.5 , air discharge) 2000 V ESD ratings machine model (MM: C = 200 pF, R = 25 , L = 500 nH) 500 V ESD ESD ratings charged device model (CDM, JESD22-C101D) 500 T Operating temperature -40 to + 105 C OP Table 2. Electrical characteristics - RF performance (T = 25 C) amb Value Symbol Parameter Unit Min. Typ. Max. Z Nominal differential output impedance Conjugate match to CC2541 OUT Z Nominal input impedance 50 IN F Frequency range (bandwidth) 2379 2507 I Insertion loss in bandwidth 1.6 1.8 dB L R Single ended return loss in bandwidth 9 10 dB L SE R Differential ended return loss in bandwidth 9 17 dB L DIFF Phase imbalance 7 imb A Amplitude imbalance 0.6 dB imb 2/11 DocID028619 Rev 1