Digitally Tunable MDAC Based State Variable Filter Reference Design

(ACTIVE) TIPD160

Description & Features

Technical Documents

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Key Document

Description

This MDAC based state variable filter offers highly accurate digital tuning of gain, center/cut off frequency, and quality factor. This circuit provides three separate filter outputs: low pass, band pass, and high pass that can be accessed simultaneously.  This circuit is suitable for a broad range of applications requiring accurate digital filter tuning from audio to industrial and more!

Features
  • Contains Theory, Component Selection, TINA-TI Simulation, Measured Results, PCB Layout, Modifications
  • Digitally tunable high, band, or low pass filter
    • Gain range -53.13 dB to 6.01 dB
    • Frequency range 1.99 Hz to 28.76 kHz
    • Quality factor range 0.46 to 2.14

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DAC8812  16-Bit, Dual Serial Input Multiplying Digital-to-Analog Converter  Digital-to-analog converters (DACs)  Sample & Buy Not Available
OPA277  High Precision Operational Amplifiers  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DAC8812 Download Download
OPA277 Download -
Download Download
Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date
PDF 2073 19 Sep 2014
Design files (3)
Title Abstract Type Size (KB) Date
ZIP 1823 16 Oct 2014
PDF 185 16 Oct 2014
PDF 193 16 Oct 2014
Related Tools & Software

Software (2)



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