link to page 8 HMC434Data SheetPCB MATERIAL STACKUP The evaluation board is built using Arlon 25FR or Rogers RO4350B and standard FR4 materials. RF trace widths are designed to achieve a control ed 50 Ω characteristic impedance. The complete PCB stackup is shown in Figure 15. 0.5oz (18µm) FINISHED COPPERARLON 25FR OR ROGERS RO4350BLAMINATE 0.010"0.5oz (18µm) FINISHED COPPER0.0645" ± 0.0025"FR4 PREPREGCOPPER TO COPPER0.5oz (18µm) FINISHED COPPERFR4 LAMINATE 015 0.5oz (18µm) FINISHED COPPER 15684- Figure 15. Evaluation Board PCB Stackup Rev. G | Page 8 of 9 Document Outline Features Applications Functional Block Diagram General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Interface Schematics Typical Performance Characteristics Applications Information Evaluation Board PCB PCB Material Stackup Outline Dimensions Ordering Guide