STA382BWSTR datasheet(28/172 Pages) STMICROELECTRONICS

28 / 172 page

Device overview

STA382BWS

28/172

Doc ID 022784 Rev 1

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2.0 output with B2DRC (Figure 6): the mixer and the eighth biquadratic filter are used to

divide the channel into two sub-bands, then each sub-band is independently processed

by a DRC block. The two bands are then re-composed and fed to the following

processing blocks. The crossover frequency is user-selectable. This configuration and

features ensure the backward compatibility with the previous Sound Terminal®

products. For further information please refer to Chapter 6.11.1: Dual-band DRC.

Figure 6.

Processing path, second part: 2.0 output with B2DRC

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2.1 output with STCompressorTM (Figure 7): the STA382BWS embeds the latest, state-

of-the-art multi-band dynamic, range compressor, called STCompressorTM. When

using this configuration, up to 10 biquad filters are available for dedicated processing.

Please refer to Section 4.3: STCompressorTM for further information about this feature.

Figure 7.

Processing path, second part: 2.1 output configuration with

STCompressorTM

Crossover Frequency

Determined by XO Setting

(User Defined If

XO=0000)

C1Mx1

User-Defined

Mix Coefficients

B2DRC

Hi-pass XO

filter

DC Cut

Filter

C1Mx2

C2Mx1

B2DRC

Hi-pass XO

filter

C2Mx2

C3Mx1

C3Mx2

Channel 1

Volume

DRC 1

Channel 3

Volume

DRC 2

Post Scale

- +

DC Cut

Filter

Channel 3

Volume

DRC 2

Channel 2

Volume

DRC 1

Post Scale

Crossover Frequency

Determined by XO Setting

(User Defined If

XO=0000)

C1Mx1

User-Defined

Mix Coefficients

Channel ½

Biquad#8

--------------

Hi-pass XO

Filter

STCompressor

Volume

And

Limiter

DC Cut

Filter

Post Scale

C1Mx2

C2Mx1

Channel ½

Biquad#8

--------------

Hi-pass XO

Filter

STCompressor

Volume

And

Limiter

DC Cut

Filter

Post Scale

C2Mx2

C3Mx1

Channel 3

Biquad#8

--------------

Low-pass XO

filter

Volume

And

Limiter

DC Cut

Filter

Post Scale

C3Mx2

Obsolete

Product(s)

- Obsolete

Product(s)

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