TAS3001CPWR datasheet(33/56 Pages) TI

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8−1

8 Using the TAS3001 in a System

8.1

TAS3001 Applications

The TAS3001 can be used to perform a number of audio processing functions.

The TAS3001 can be used to perform parametric equalization to correct the frequency response of a pair of

loudspeakers and microphones as shown in Figure 8−1. In this case, the TAS3001 is used to shape the frequency

response of the transducers by applying filters to compensate for the response irregularities of each transducer

(peaks and valleys of the microphone and loudspeaker response).

Conventional

Amplifier

TAS3001

TLC320AD77

DAC Section

TLC320AD77

ADC Section

TAS3001

Preamplifier

TUSB3200

or TAS1020

Streaming

USB Controller

USB Interface

Figure 8−1. TAS3001 as a System Equalizer

The filters can be developed and evaluated using a personal computer, the TAS3001 EVM, a speaker analysis

package, and the automatic loudspeaker equalization program. The next section demonstrates the use of the Texas

Instruments automatic loudspeaker equalization program that automates many of the steps in developing filters for

loudspeaker equalization.

A second application of the TAS3001 is to perform both the crossover and frequency equalization of individual

loudspeaker drivers in a two- or multi-way loudspeaker design as in Figure 8−2. In this case, the TAS3001 provides

two functions: the crossover band-pass and band-limiting functions for each speaker and the compensation for the

response irregularities of each loudspeaker driver.

TAS3001CPWR 数据表(PDF) 33 Page - Texas Instruments