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User's Guide

SLOU346–July 2012

TAS5721-TAS5723EVM Evaluation Module

This manual describes the operation of the TAS5721-TAS5723EVM (EVM) for evaluation of the

performance of the TAS5721 and TAS5723 digital input class-D power amplifiers with PWM outputs. The

EVM is designed for operation with the Input-USB Board3. The main contents of this document are:

• Details on the proper connection of this EVM and details about the EVM

• Details on installing and using the GUI for programming the EVM

• A Quick-Start Guide for common modes in which the EVM is used

Contents

1 Overview ..................................................................................................................... 2

1.1 TAS5721-TAS5723EVM and Input-USB Board3 Features ................................................... 2

2 Installation .................................................................................................................... 3

2.1 EVM Installation .................................................................................................... 3

2.2 Software Installation ............................................................................................... 6

3 Using the GUI ............................................................................................................... 7

3.1 ControlConsole Quick start ....................................................................................... 7

4 Alternate Configurations ................................................................................................... 9

4.1 BD modulation ...................................................................................................... 9

4.2 PBTL mode ......................................................................................................... 9

5 Jumpers and Control Utilities on Input-USB Board3 .................................................................. 10

5.1 RCA/OPTICAL Jumpers ......................................................................................... 10

5.2 Switches ........................................................................................................... 10

5.3 LED Indicators .................................................................................................... 10

6 Board Layouts, Bill of Materials, and Schematic ...................................................................... 11

6.1 TAS5721-TAS5723EVM Board Layouts ...................................................................... 11

6.2 TAS5721-TAS5723EVM Schematic ........................................................................... 13

6.3 Input-USB Board3 Schematic ................................................................................... 14

6.4 Bill of Materials .................................................................................................... 18

List of Figures

1 Complete System and EVM Signal Path Overview .................................................................... 3

2 BTL Configuration........................................................................................................... 4

3 SE/2.1 Mode Configuration ................................................................................................ 5

4 PBTL Configuration......................................................................................................... 5

5 TAS5721-TAS5723EVM Top Composite View ........................................................................ 11

6 Input-USB Board3 Top Composite View ............................................................................... 12

7 TAS5721-TAS5723EVM Schematic .................................................................................... 13

8 Input - USB Board3 SPDIF Interface ................................................................................... 14

9 Input - USB Board3 ADC Inputs......................................................................................... 15

10 Input - USB Board3 PSIA Input, Data Select, EVM Connector ..................................................... 16

11 Input - USB Board3 Power Inputs and Supplies ...................................................................... 17

List of Tables

PurePath is a trademark of Texas Instruments.

I2S is a trademark of Philips Electronics.

C is a trademark of Philips Semiconductor Corp..

SLOU346–July 2012 TAS5721-TAS5723EVM Evaluation Module

Summary of content (28 pages)

PAGE 1
User's Guide SLOU346 – July 2012 TAS5721-TAS5723EVM Evaluation Module This manual describes the operation of the TAS5721-TAS5723EVM (EVM) for evaluation of the performance of the TAS5721 and TAS5723 digital input class-D power amplifiers with PWM outputs. The EVM is designed for operation with the Input-USB Board3.
PAGE 2
Overview 1 www.ti.com 1 ControlConsole Process Flow Icons...................................................................................... 8 2 Bill of Materials ............................................................................................................ 18 Overview This EVM demonstrates the TAS5721DCA or TAS5723DCA integrated circuit power stage from Texas Instruments. The TAS5721 and TAS5723 are efficient digital audio class D power amplifiers for driving bridge-tied speakers.
PAGE 3
Installation www.ti.com Figure 1. Complete System and EVM Signal Path Overview 2 Installation This section describes the EVM power supplies, system interfaces, and software installation. It provides information regarding handling and unpacking, absolute operating conditions, and switch and jumper positions. It also provides a step-by-step guide to setting up the EVM for device evaluation. 2.1 EVM Installation The following are the basic tools needed for the initial EVM power up.
PAGE 4
Installation www.ti.com NOTE: Minimize the length of the PSU cable. Increasing the length of the PSU cable increases the distortion of the amplifier at high output levels and low frequencies. 2.1.3 Loudspeaker Connectors CAUTION All BTL speaker outputs are biased at Vcc/2 and must not be connected to ground (e.g., through an oscilloscope ground). 2.1.3.1 BTL Mode (2.
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Installation www.ti.com 2.1.3.2 SE Mode (2.1) When connecting speakers in single-ended mode, connect one speaker across the connector labeled SEA and the other speaker to the connector labeled SE-B. To run in 2.1 mode, also connect a BTL speaker across the RIGHT connector (outputs C and D). Figure 3. SE/2.1 Mode Configuration 2.1.3.3 PBTL Mode When connecting speakers in a PBTL configuration, short OUT_A and OUT_B after the filter (so short the two pins of the connector labeled LEFT.
PAGE 6
Installation www.ti.com The analog input goes into the HP-IN headphone jack. Plug the headphones or line-driver load into the HP-OUT headphone jack. Use a PWM input signal by installing C2, C3, C5, and C6 onto the EVM. Pressing the HP-SD button on the EVM shuts down the headphone amplifier/line-driver. 2.1.5 USB Interface The TAS5721 and TAS5723 device registers are accessed through I2C bus lines SDA and SCL.
PAGE 7
Using the GUI www.ti.com 3 Using the GUI This section describes the details of using the TAS57xx ControlConsole Graphical User Interface (GUI) software tool to interface with the TAS5721 or TAS5723 device. The software is available for download at the EVM product page on www.TI.com. The GUI's main function provides an easy way to manipulate the device register space for attaining the required signal processing flow.
PAGE 8
Using the GUI www.ti.com Table 1. ControlConsole Process Flow Icons Name 8 Symbol Function Interaction Biquad Implement IIR filters in the DAP by using the biquad filters. They are often used for speaker equalization. • Open the Biquad GUI by double clicking • Open the Biquad GUI or the biquadspecific help page by right clicking Mixer Each mixer adds two or more signals together. The dials allow for the user to adjust the scalar multiplier for each input signal.
PAGE 9
Alternate Configurations www.ti.com 4 Alternate Configurations The EVM is designed to easily allow for AD modulation in SE or BTL mode. To use BD modulation or PBTL mode, the EVM must be modified. 4.1 BD modulation Hardware: 1. Remove C25 from the EVM. GUI: 1. On the TAS572X Block Diagram tab, click the Input Mux block. 2. Select BD mode for channel 1 and channel 2. 3. Enter "0x11" in the address line and B8 in the data line, then click Write. 4.
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Jumpers and Control Utilities on Input-USB Board3 5 Jumpers and Control Utilities on Input-USB Board3 5.1 RCA/OPTICAL Jumpers • • • • • • 5.2 • S1 (RESET): Pressing the RESET switch resets the TAS572X device S2 (COAX/OPTO): Determines which digital input to use, RCA or optical.
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Board Layouts, Bill of Materials, and Schematic www.ti.com 6 Board Layouts, Bill of Materials, and Schematic 6.1 TAS5721-TAS5723EVM Board Layouts Figure 5.
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Board Layouts, Bill of Materials, and Schematic www.ti.com Figure 6.
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Board Layouts, Bill of Materials, and Schematic www.ti.com 6.2 TAS5721-TAS5723EVM Schematic TAS5721DCA EVALUATION BOARD HP-OUT C1 HP-INR HP-IN 1.5ufd/10V 0402 X5R Shield 1 RIGHT 3 LEFT 2 HPOR 10.0K 0402 R1 R3 10.0K 0402 220pfd/50V 0402 COG R5 R4 R6 10.0K 0402 U1 PINS 5 AND 6 MUST REMAIN FLOATING HPOL HPOL DNP 220pfd/50V 0402 COG C27 C7 HPIL U1 0.033ufd/50V 0402 X7R 1 PVDD 1000pfd/50V 0402 COG 2 3 + GND C8 C9 4 0.
PAGE 14
Board Layouts, Bill of Materials, and Schematic 6.3 www.ti.com Input-USB Board3 Schematic INPUT-USB BOARD #3 R202 COAX SPDIF 1.0M 0603 C200 R201 2 3 R200 1 J3 75 0603 0.047ufd/16V 0603 100 0603 1 4 7.50K 0603 C202 1 OPTICAL SPDIF 2 0.1ufd/16V 0603 VCC Vcc 2 7 GND SHIELD GND OUT 3 6 1 GND 4 74LVC2G157DCT SSOP8-DCT TORX147PL(F,T) GND SPDIF LOCK GND 1 SN74LVC1GU04DBV SOT23-DBV5 GND GND 8 GND 5 2.00K 0603 J4 0.1ufd/16V 0603 MUX1 4 392 0603 C205 GND 3 R211 +3.
PAGE 15
Board Layouts, Bill of Materials, and Schematic www.ti.com INPUT-USB BOARD #3 JP300 C301 R305 ANALOG INPUTS C300 4.99K 0603 R306 4.99K 0603 470pfd/50V 0603 1.0ufd/16V 0603 U2 R307 100 0603 0.022ufd/25V 0603 JP301 ADC1-IN AGND 4 L Shield 3 C303 5 R 4.99K 0603 R309 4.99K 0603 470pfd/50V 0603 2 R311 +5V AGND R308 C304 1.0ufd/16V 0603 R312 C305 0.022ufd/25V 0603 AGND AGND NO C307 10ufd/10V 0805 0.1ufd/16V 0603 AGND C308 ADC2-IN 3 0.
PAGE 16
Board Layouts, Bill of Materials, and Schematic www.ti.com INPUT-USB BOARD #3 +3.3VD4 +3.3VD4 R400 S6 FROM SYSTEM RESET INV3 10.0K 0603 1 5 2 GND C400 C401 4.7ufd/16V 0805 0.1ufd/16V 0603 GND 3 4 +3.3VD4 C402 C404 0.1ufd/16V 0603 0.1ufd/16V 0603 FF1 GND 74LVC1G14DBV GND SOT23-DBV5 C403 GND R401 10.0K 0603 0.1ufd/16V 0603 1 8 2 7 3 6 4 Yellow GND +3.3VD4 R410 4.
PAGE 17
Board Layouts, Bill of Materials, and Schematic www.ti.com INPUT-USB BOARD #3 MAIN POWER IN +12V +5V +3.3V +12V +12V CR1 Red ES2AA Green 12V + SMA 50V 2A GND Black Green 5V Green 3.3V C1 0805 0805 0805 220ufd/16V M R1 R2 R3 13.0K 0603 560 0603 374 0603 GND GND GND GND GND +3.3VD1 PVDD TO 5V SWITCHER R11 +3.3V VR2 7 +12V 5 C2 1 ENA 2 4.7ufd/16V 0805 NC 3 PH 8 CR2 0.01ufd/50V 0603 B240A-13-F 2A 40V SMA 15uH DG6045C + GND GND VSENSE C4 R4 10.
PAGE 18
Board Layouts, Bill of Materials, and Schematic 6.4 www.ti.com Bill of Materials Table 2.
PAGE 19
Board Layouts, Bill of Materials, and Schematic www.ti.com Table 2. Bill of Materials (continued) 23 PBC09DAAN 1 J1 S2011E-09 HEADER THRU MALE 2 × 9 100 LS 120 TAIL GOLD, RoHS DIGI-KEY SULLINS 24 B2PS-VH(LF)(SN) 4 LEFT, SE-A, SE-B, RIGHT 455-1648 JACK JST-VH RA 2-PIN 3.96 mm LS, RoHS DIGI-KEY JST 25 SJ-3523-SMT 2 HP-IN, HPOUT CP-3523SJCT-ND JACK AUDIO-STEREO MINI(3.
PAGE 20
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
PAGE 21
FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
PAGE 22
【Important Notice for Users of this Product in Japan】】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.
PAGE 23
EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use.
PAGE 24
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
PAGE 25
FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
PAGE 26
【Important Notice for Users of this Product in Japan】】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.
PAGE 27
EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use.
PAGE 28
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.