Vendor: EnSilica Category: Filters Transforms

Digital IIR filter with APB interface

A range of 5th to 11th order digital IIR filters for conditioning and optionally decimating data from an external source and to D…

Overview

A range of 5th to 11th order digital IIR filters for conditioning and optionally decimating data from an external source and to DMA the output into processor memory.

The filter is available as an APB peripheral for easy configuration and control.

Key features

  • Elliptic IIR filter response
  • Fully pipelined single cycle operation
  • Multiplierless 5th and 10th order designs
  • 3 multipliers for 7th order filter
  • 5 multipliers for 11th order filter
  • Very low resource requirements compared to FIR filters
  • Near linear phase passband
  • Optional decimate by 2
  • AMBA APB control register interface
  • DMA data interface

Block Diagram

eSi-IIR block diagram

Benefits

  • Very low resource requirements
  • State space design for controlled word length growth
  • Within +/-1 LSB of floating point reference model
  • Very small compared to equivalent stopband rejection in an FIR filter

What’s Included?

  • RTL source code
  • Testbench with various stimulus generation
  • Synthesis scripts
  • MATLAB model

Specifications

Identity

Part Number
eSi-IIR
Vendor
EnSilica
Type
Silicon IP

Provider

EnSilica
HQ: UK

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Frequently asked questions about Filters and Transforms IP cores

What is Digital IIR filter with APB interface?

Digital IIR filter with APB interface is a Filters Transforms IP core from EnSilica 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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