TAS5760MDAPR datasheet(47/84 Pages) TI1

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TAS5760M

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SLOS772D – JULY 2013 – REVISED JULY 2015

Typical Applications (continued)

Table 9. Design Parameters

PARAMETER

EXAMPLE

Low Power Supply

3.3 V

High Power Supply

5 V to 24 V

I2S Compliant Master

Host Processor

I2C Compliant Master

GPIO Control

Output Filters

Inductor-Capacitor Low Pass Filter

Speakers

Ω to 8 Ω

10.2.1.2 Detailed Design Procedure

10.2.1.2.1

Startup Procedures- Software Control Mode

1. Configure all digital I/O pins as required by the application using PCB connections (that is SPK_GAIN[1:0] =

11, ADR, etc.)

2. Start with SPK_SD Pin = LOW

3. Bring up power supplies (it does not matter if PVDD/AVDD or DVDD comes up first, provided the device is

held in shutdown.)

4. Once power supplies are stable, start MCLK, SCLK, LRCK

5. Configure the device via the control port in the manner required by the use case, making sure to mute the

device via the control port

6. Once power supplies and clocks are stable and the control port has been programmed, bring SPK_SD HIGH

7. Unmute the device via the control port

8. The device is now in normal operation

NOTE

Control port register changes should only occur when the device is placed into shutdown.

This can be accomplished either by pulling the SPK_SD pin LOW or clearing the SPK_SD

bit in the control port.

10.2.1.2.2

Shutdown Procedures- Software Control Mode

1. The device is in normal operation

2. Mute via the control port

3. Pull SPK_SD LOW

4. The clocks can now be stopped and the power supplies brought down

5. The device is now fully shutdown and powered off

NOTE

Any control port register changes excluding volume control changes should only occur

when the device is placed into shutdown. This can be accomplished either by pulling the

SPK_SD pin LOW or clearing the SPK_SD bit in the control port.

10.2.1.2.3

Component Selection and Hardware Connections

details the typical connections required for proper operation of the device. It is with this list of components that

the device was simulated, tested, and characterized. Deviation from this typical application circuit unless

recommended by this document may produce unwanted results, which could range from degradation of audio

performance to destructive failure of the device.

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