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AVX Corporation has worked with Modelithics to create a surface mount chip capacitor model for its GX02 broadband capacitor series that addresses DC blocking issues from 16kHz (-3dB roll-off) to 65GHz. Designated the CAP-AVX-GX02-001 model, the model is substrate scalable and land pattern (pad) scalable, accounting for substrate and printed circuit board related parasitic effects including, substrate height, dielectric constant, loss tangent, interconnect metal thickness, component tolerance, pad width, pad length, pad gap, and other input parameters.
Suitable for use with microstrip applications, the CAP-AVX-GX02-001 model features a Sim_mode switch that enables pad stack effects to be disabled. The model is validated to 65GHz on a 5 mil Alumina substrate, and to lower frequencies using additional printed circuit board materials. The CAP-AVX-GX02-001 model also features equivalent circuit topology and accurate effective series resistance (ESR) measured to 1GHz.
Applications of the GX02 model also include optical communication and high-speed data transfer.
The GX Series is suitable for applications such as semiconductor data communications, receiver optical subassemblies, trans-impedance amplifiers and test equipment. Designed utilising AVX's patented precision termination process, the GX Series ultra-broadband capacitor is orientation insensitive with a standard EIA 0402 footprint to minimise board space requirements, and is available with X5R or X7S dielectric characteristic.
