Tone Stack for Guitar Amplifier Reference Design

(ACTIVE) TIPD186

Description & Features

Technical Documents

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Key Document

Description

This split-supply, high-performance guitar tone circuit provides control of the bass, mid, and treble frequencies of an electric guitar signal, while also providing gain with minimal distortion and noise. Buffered inputs and outputs preserve the behavior of the system independent of the source and load impedances, and a radio frequency (RF) filter on the circuit front end attenuates noise from outside the audio band.

Features
  • THD+N at 1 kHz: -105 dB
  • Treble adjustment range: 10 dB
  • Mid adjustment range: 9 dB
  • Bass adjustment range: 19 dB
  • Supply voltage: ±15 V
  • Utilizies OPA1642 high-performance, JFET-input audio operational amplifier

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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Bill of Materials (BOM)

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA1641  Sound-Plus High-Performance, JFET-Input Audio OpAmps  Operational amplifiers (op amps)  Sample & Buy Not Available
OPA1642  Sound-Plus High-Performance, JFET-Input Audio OpAmps  Operational amplifiers (op amps)  Sample & Buy Not Available
OPA1644  OPA1641/1642/1644 SoundPLUS™ High-Performance, JFET-Input Audio OpAmps  Operational amplifiers (op amps)  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
OPA1641 Download Download
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OPA1642 Download Download
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OPA1644 Download Download
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Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


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 Views TI Recommends
PDF 1182 07 Apr 2015 25
Selection guides (1)
Title Abstract Type Size (KB) Date Views
PDF 4555 08 Nov 2016 105
Design files (2)
Title Abstract Type Size (KB) Date Views
PDF 110 04 May 2015 3
PDF 136 04 May 2015 14
Related Tools & Software

Software (2)



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