(1/2) Multilayer Chip Directional Couplers For 2.4GHz W-LAN Conformity to RoHS Directive HHM Series HHM2914A1 0.1+0.10 -0.05 SHAPES AND DIMENSIONS 0.30.15 3 1 2 0.50.15 0.4max. 0.50.05 1.00.05 4 0.25 +0.15 -0.10 Terminal functions 1 Coupling 2 50 term 3 Output 4 Input Dimensions in mm RECOMMENDED PC BOARD PATTERNS 0.4 0.1 0.35 0.15 Dimensions in mm ELECTRICAL CHARACTERISTICS Frequency range Coupling factor Insertion loss Isolation VSWR Temperature range 1 2 Operating Storage 2400 to 2500MHz 21.21.0dB 0.20dB max.1 0.25dB max.2 35dB min. 1.3 max. -40 to +85C -40 to +85C 25C Operating temperature * Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications. * All specifications are subject to change without notice. 001-02 / 20130901 / rf_coupler_hhm2914a1_en.fm (2/2) ISOLATION 1: 2400MHz -21.5dB 2: 2450MHz -21.3dB 3: 2500MHz -21.1dB 1 2300 2 3 2400 2500 Frequency (MHz) 2600 2700 INSERTION LOSS Insertion loss (dB) 1 2 1: 2400MHz -0.05dB 2: 2450MHz -0.05dB 3: 2500MHz -0.05dB 3 -0.4 -0.6 2 1 2300 Isolation : 1: 2400MHz -43.6dB 2: 2450MHz -43.7dB 3: 2500MHz -43.7dB 3 2 1 3 2400 2500 Frequency (MHz) 2600 Directivity : 1: 2400MHz -22.2dB 2: 2450MHz -22.4dB 3: 2500MHz -22.6dB 2700 2.0 1: 2400MHz 1.02 2: 2450MHz 1.02 3: 2500MHz 1.02 1.8 1.6 1.4 1.2 -0.8 -1.0 2200 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 2200 VSWR 0 -0.2 Isolation & Directivity(dB) 0 -5 -10 -15 -20 -25 -30 -35 -40 2200 VSWR Coupling factor(dB) FREQUENCY CHARACTERISTICS COUPLING 2300 2400 2500 Frequency (MHz) 2600 2700 1.0 2200 1 2300 2 3 2400 2500 Frequency (MHz) 2600 2700 * All specifications are subject to change without notice. 001-02 / 20130901 / rf_coupler_hhm2914a1_en.fm