Datasheet

AIC36 Control Software

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4.1.2.1 ADC Biquad Filter Tool

The ADC Biquad Filter Tool allows the user to specify the following biquad filters downloadable to the

TLV320AIC36:

- All-pass

- High-pass (Butterworth first-order, Butterworth second-order, Bessel second-order, Linkwitz-Riley

second-order, and variable-Q second-order)

- Low-pass (Butterworth first-order, Butterworth second-order, Bessel second-order, Linkwitz-Riley

second-order, and variable-Q second-order)

- EQ (equalizer)

- Notch

- Treble shelf

- Bass shelf

Figure 10. ADC Biquad Filter Tool

To use the default EVM settings with the Biquad Filter Tool click on the "Recording" application and

download for example the line-input script to setup EVM for line-in recording then proceed to use the

Biquad Filter Tool.

Step 1: Select the Processing Block - This specifies the number of biquads available (3 or 5) and stereo or

mono (right). For best results use Processing Block PRB_R2 as this works well with the default EVM

setup.

TLV320AIC36EVM-K SLAU280A–March 2009–Revised October 2012

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