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Texas Instruments TAS5411EVM Скачать руководство пользователя страница 2

Hardware Overview

1.1

TAS5411EVM Features

•

Runs without I

2

C initialization

•

Has GUI control via USB port

•

Passes EMC CISPR 25, class 5

1.2

TAS5411EVM Gain

The gain setting for TAS5411-Q1 device is I

2

C programmable. The four gain options are 20 dB, 26 dB, 32

dB, and 36 dB. Set the gain by modifying I

2

C control register 0x03. By default, the gain is 26 dB.

1.3

TAS5411EVM PWM Switching Frequencies

The PWM switching frequency is I

2

C programmable. The two f

(SW)

options are 400 kHz and 500 kHz.

Programming the frequency in control register 0x03 is via the GUI and IIC2USB-2 board. By default, f

(SW)

is 400 kHz.

1.4

TAS5411EVM SpeakerGuard™ Protection Circuitry

The SpeakerGuard protection circuitry is programmable for different voltage levels. Programming the
levels in control register 0x03 via the GUI and IIC2USB-2 board. The control register shows the default
value for the SpeakerGuard protection-circuitry voltage level.

Table 1. Control Register

D7

D6

D5

D4

D3

D2

D1

D0

FUNCTION

0

1

1

1

1

0

0

0

26-dB gain, f

(SW)

set to 400 kHz, SpeakerGuard protection

circuitry is set to maximum voltage.

—

—

—

—

—

—

—

1

f

(SW)

set to 500 khz

—

—

—

—

—

1

1

—

RESERVED

—

—

1

1

0

—

—

—

SpeakerGuard protection circuitry is set to 14-V peak
output.

—

—

1

0

1

—

—

—

SpeakerGuard protection circuitry is set to 11.8-V peak
output.

—

—

1

0

0

—

—

—

SpeakerGuard protection circuitry is set to 9.8-V peak
output.

—

—

0

1

1

—

—

—

SpeakerGuard protection circuitry is set to 8.4-V peak
output.

—

—

0

1

0

—

—-

—

SpeakerGuard protection circuitry is set to 7-V peak
output.

—

—

0

0

1

—

—

—

SpeakerGuard protection circuitry is set to 5.9-V peak
output.

—

—

0

0

0

—

—

—

SpeakerGuard protection circuitry is set to 5-V peak
output.

0

0

—

—

—

—

—

—

Set gain to 20 dB.

0

1

—

—

—

—

—

—

Set gain to 32 dB.

1

1

—

—

—

—

—

—

Set gain to 36 dB.

2

TAS5411EVM User's Guide

SLOU431 – November 2015

Submit Documentation Feedback

Copyright © 2015, Texas Instruments Incorporated

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Содержание TAS5411EVM

Страница 1: ...I The schematic bill of materials BOM and board layout are included 1 Hardware Overview The TAS5411EVM showcases TI s TAS5411 Q1 analog input class D closed loop mono amplifier The EVM is usable as st...

Страница 2: ...the GUI and IIC2USB 2 board The control register shows the default value for the SpeakerGuard protection circuitry voltage level Table 1 Control Register D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION 0 1 1 1 1 0 0...

Страница 3: ...from the PC to the USB2IIC 2 board shown in Figure 3 The 3 3 V and USB LINK LEDs light The I2 C LEDs SDA SCL on the USB2IIC 2 board are blinking colored boxes in Figure 3 3 Connect J2 see Figure 2 PSU...

Страница 4: ...m TAS5421 Q1 GUI Setup exe After the program is installed run the TAS5421 EVM GUI Figure 4 shows the start up GUI image The GUI displays the fault register when first started I2 C data is polling by d...

Страница 5: ...ircuitry Maximum voltage level 4 1 Checking the Fault Register When the GUI first runs the Register Detail box displays the fault register The GUI runs with I2 C data polling as the default setting cl...

Страница 6: ...rs in the middle box Figure 6 Status Register 4 3 Checking and Changing the Control Register Figure 7 shows the control register In this register one can change the default values for f SW SpeakerGuar...

Страница 7: ...l Starting the GUI enables the I2 C log An option is available to turn off logging on the pulldown I2 C Log menu Figure 8 Read and I2 C Log 4 5 I2 C Polling As mentioned above the I2 C polling is on w...

Страница 8: ...and Schematic 5 1 TAS5411EVM Board Layouts Figure 10 and Figure 11 show the board layouts for the EVM Figure 10 TAS5411EVM Top View Figure 11 TAS5411EVM Bottom View 8 TAS5411EVM User s Guide SLOU431...

Страница 9: ...W07D MuRata 2 C13 C15 Capacitor ceramic 470 pF 250 V 10 X7R 0603 12 LTST C190CKT Lite On 1 D1 LED Red SMD 13 LTST C171GKT Lite On 1 D2 LED Green SMD 14 SJ5382 3M 4 H1 H2 H3 H4 Bumpon hemisphere 0 25 0...

Страница 10: ...ematic www ti com 5 3 TAS5411EVM Schematic Figure 12 shows the TAS5411EVM schematic Figure 12 TAS5411EVM Schematic 10 TAS5411EVM User s Guide SLOU431 November 2015 Submit Documentation Feedback Copyri...

Страница 11: ...ing the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repa...

Страница 12: ...transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indic...

Страница 13: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Страница 14: ...REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE L...

Страница 15: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Страница 16: ...ltera Analog Devices Intersil Interpoint Microsemi Aeroflex Peregrine Syfer Eurofarad Texas Instrument Miteq Cobham E2V MA COM Hittite Mini Circuits General Dynamics 8 812 309 58 32 8 812 320 02 42 or...

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