TAS5731MPHPR datasheet(67/81 Pages) TI1

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RESET

PDN

SDA

PLL_FLTM

PLL_FLTP

AVDD/DVDD

PVDD

3.3 V

8 V–24 V

SCL

Digital

Audio

Source

I C

Control

Inputs

B0264-25

Loop

Filter

SDIN

LRCLK

SCLK

MCLK

OUT_A

OUT_B

BST_A

BST_B

PVDD

OUT_C

OUT_D

BST_C

BST_D

BTL

TAS5731M

www.ti.com

SLOS838C – JULY 2013 – REVISED AUGUST 2015

10.2.3 2.1 Application

A 2.1 system generally refers to a system in which there are two full range speakers with a separate amplifier

path for the speakers which reproduce the low-frequency content. In this system, two channels are presented to

the amplifier via the digital input signal, these are driven into two single-ended speakers and are mixed into a

third channel, conditioned to stream low-frequency content into a differentially connected speaker.

The 2.1 application is shown in Figure 72.

Figure 72. Simplified 2.1 Application Diagram

10.2.3.1 Design Requirements

SPACE

Table 28. Design Requirements

PARAMETER

EXAMPLE

Low Power Supply

3.3 V

High Power Supply

8 V to 24 V

I2S Compliant Master

Host Processor

I2C Compliant Master

GPIO Control

Output Filters

Inductor-Capacitor Low Pass Filter

Speaker

Ω (BTL), 2 Ω (SE) minimum

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