EVAL-ADL8143

製品概要

The ADL8143-EVALZ is a 4-layer printed circuit board (PCB) fabricated from 0.203 mm (8 mil) thick, Rogers 4003C and Isola 370HR, copper clad, forming a nominal thickness of 1.63 mm (64 mils). The RFIN and RFOUT ports on the ADL8143-EVALZ are populated with 2.92 mm, female coaxial connectors. The ADL8143-EVALZ is populated with components suitable for use over the entire −55°C to +125°C operating temperature range.

To calibrate board trace losses, a through calibration path is provided between the J1 and J2 connectors. J1 and J2 must be populated with RF connectors to use the through calibration path.

Access the ADL8143-EVALZ ground path and drain voltage through the surface-mount technology (SMT) test point connectors, GND and VDD. A supplementary test point for VBIAS is included for simple access on the RBIAS pin.

The RF traces on the ADL8143-EVALZ are 50 Ω, grounded, and 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 heat sink.

The power supply decoupling capacitors on the ADL8143-EVALZ represent the configuration used to characterize and qualify the device.

For full details on the ADL8143, see the ADL8143 data sheet, which must be consulted in conjunction with this user guide when using the ADL8143-EVALZ.