Dreamstime_susan_sheldon
272875076 © Bruno Coelho | Dreamstime.com
291067564 © Antony Rodriguez | Dreamstime.com
280087088 © Yuriy Nedopekin | Dreamstime.com
Globalnetwork think 617b0a290a5dc

Improving Wideband Multichannel Systems with IC Integration (Part 3) (Download)

Oct. 28, 2021

Read this article online.

As discussed, on-chip hardened programmable finite-impulse-response filters (pFIRs) exist within the analog-to-digital converter (ADC) data path before the decimation stages. As we’ve shown, these pFIRs present users with significant application flexibility, but the pFIRs also allow developers to significantly reduce FPGA resources due to the feature offload to the digitizing IC itself.

The obvious question becomes: Why use the hardened pFIRs on the digitizing IC instead of within hardware-description-language (HDL) fabric on an FPGA? This can be answered in several parts: resource reduction, design complexity, and power consumption.