TAS3001CPWR datasheet(9/56 Pages) TI

9 / 56 page

1−3

1.5

Functional Block Diagram

Serial

Audio

Input

Port

SDIN1

SDOUT

LRCLKOUT

SCLKOUT

Internal Clocks

SDIN2

LRCLK

SCLK

Clock

Generator

MCLK

PLL

6 Biquad

Filters

Treble/

Bass

Volume

System

Control

I2C

Slave

SDA

SCL

Address

Select

CS1

CS2

2-Channel

Stereo Mixer

Figure 1−1. TAS3001 Signal Flow

Figure 1−1 shows the signal flow from the inputs (SDIN1 and SDIN2) though each processing stage to the output

(SDOUT) where it is passed to an external DAC, digital amplifier, or other subsequent digital data processing stage.

Each of these audio processing functions is discussed in more detail in the following sections.

1.6

Mixing/Input Scaling

The TAS3001 is equipped with a dual-input stereo digital mixer. This mixer permits each input to scaled (−

∞ to +18 dB)

independently. A stereo sum of the scaled results is produced.

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