Vendor: Lattice Semiconductor Corp. Category: Filters Transforms

Cascaded Integrator-Comb (CIC) Filter

Cascaded Integrator-Comb (CIC) filters, also known as Hogenauer filters, are used to achieve arbitrary and large sample rate chan…

Overview

Cascaded Integrator-Comb (CIC) filters, also known as Hogenauer filters, are used to achieve arbitrary and large sample rate changes in digital systems. These filters are used as decimation or interpolation filters and can be efficiently implemented without multipliers, utilizing only adders and subtractors.

A CIC filter is typically used in applications where the system sample rate is much larger than the bandwidth occupied by the signal. They are commonly used to build Digital Down Converters (DDCs) and Digital Up Converters (DUCs). Some applications that use the CIC filter include software designed radios, cable modems, satellite receivers, 3G base stations, and radar systems.

Lattice provides a widely parameterizable CIC filter that supports multiple channels with run-time programmable rates and differential delay parameters.

Key features

  • 1-32-bit Input Data Width
  • 1-8 Cascaded Stages
  • 1-4 Cycles Differential Delay, Run-time Programmable for Both Decimation and Interpolation
  • 2-16,384 Decimation and Interpolation Sampling Rate Factor, Run-time Programmable Rates for Both Decimationand Interpolation
  • Multi-channel (up to 4 Channels) Support for Both Decimation and Interpolation
  • Fully Synchronous, Single-clock Design

Block Diagram

CIC-FILT block diagram

Specifications

Identity

Part Number
CIC-FILT
Vendor
Lattice Semiconductor Corp.
Type
Silicon IP

Files

Product Sheet Download

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Provider

Learn more about Filters Transforms IP core

FPGAs solve challenges at the core of IoT implementation

The Internet of Things (IoT) has become a wildly popular term these days, often used to describe a world in which virtually every electronic device connects to the Internet and each other. It comprises a staggering list of applications—everything from smart consumer appliances and vehicles to wearables—and that list will only grow as mobility continues to explode. But this growth brings with it implementation challenges to which solutions need to be found.

Frequently asked questions about Filters and Transforms IP cores

What is Cascaded Integrator-Comb (CIC) Filter?

Cascaded Integrator-Comb (CIC) Filter is a Filters Transforms IP core from Lattice Semiconductor Corp. listed on Semi IP Hub.

How should engineers evaluate this Filters Transforms?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this Filters Transforms IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

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