EVAL-HMC8414

Product Details

The HMC8414-EVALZ is a 4-layer printed circuit board (PCB) fabricated from 10 mil (0.254 mm) thick, Rogers 4350B and Isola 370HR, copper clad, forming a nominal thickness of 62 mils (1.575 mm). The RFIN and RFOUT ports on the HMC8414-EVALZ are populated with SubMiniature Version A (SMA), female coaxial connectors, and the corresponding RF traces have a 50 Ω characteristic impedance. The HMC8414-EVALZ is populated with components suitable for use over the entire −40°C to +85°C operating temperature range of the HMC8414ACPZN. To calibrate board trace losses, a through calibration path is provided. Install RF connectors in the J1 and J2 positions to use the through calibration path. Refer to Figure 4, in the user guide, for the insertion loss and return loss of the through calibration path.

Access the HMC8414-EVALZ power supply and digital control pin through the surface-mount technology (SMT) test point connectors, VRBIAS, VCTRL, and VDD.

The RF traces on the HMC8414-EVALZ are 50 Ω, grounded, coplanar waveguide. The package ground leads and the exposed pad connect directly to the ground plane. Multiple vias connect the top and bottom ground planes with particular focus on the area directly beneath the ground paddle to provide adequate electrical conduction and thermal conduction to the HMC8414-EVALZ.

Figure 5 of the user guide shows the HMC8414-EVALZ schematic and configuration used to characterize and qualify the device.

For full details on the HMC8414, see the HMC8414 data sheet, which must be consulted in conjunction with the user guide when using the HMC8414-EVALZ.