TAS5504-5142V4EVM User's Guide Evaluation Module for TAS5504A 4-Channel Digital Audio PWM Processor and TAS5142 Digital Amplifier Power-Output Stage User's Guide June 2006 Digital Audio & Video Products SLEU075
SLEU075 – June 2006 – Revised June 2006 Submit Documentation Feedback
Contents Preface ............................................................................................................................... 5 1 2 3 Overview TAS5504-5142V4EVM Features.................................................................................. 8 1.2 PCB Key Map ....................................................................................................... 9 System Interfaces ...........................................................................................
List of Figures 1-1 1-2 2-1 2-2 2-3 4-1 4-2 Integrated PurePath Digital™ Amplifier System ......................................................................... 8 Physical Structure for TAS5504-5142V4EVM (Rough Outline) ....................................................... 9 Recommended Power-Up Sequence .................................................................................... 12 J70 Pin Numbers ................................................................................................
Preface SLEU075 – June 2006 – Revised June 2006 Read Me First About This Manual This manual describes the operation of the TAS5504-5142V4EVM evaluation module from Texas Instruments (TI). How to Use This Manual This document contains the following chapters: Chapter 1 - Overview Chapter 2 - System Interfaces Chapter 3 - Protection Chapter 4 - Configuration for 2.1 System Information About Cautions and Warnings This manual may contain cautions and warnings.
www.ti.com Related Documentation From TI Related Documentation From TI Table 1 contains a list of data manuals that have detailed descriptions of the integrated circuits used in the design of TAS5504-5142V4EVM. The data manuals can be obtained at http://www.ti.com. Table 1.
Chapter 1 SLEU075 – June 2006 – Revised June 2006 Overview The TAS5504-5142V4EVM PurePath Digital™ customer evaluation amplifier module demonstrates two audio integrated circuits, TAS5504A and TAS5142, from Texas Instruments (TI). The TAS5504APAG is a high-performance 32-bit (24-bit input) multichannel PurePath Digital pulse width modulator (PWM) based on Equibit technology, with a fully symmetrical AD modulation scheme. It accepts input sample rates from 32 kHz to 192 kHz.
www.ti.com TAS5504-5142V4EVM Features 1.1 TAS5504-5142V4EVM Features • • • • 4-channel (or 2.
www.ti.com PCB Key Map 1.2 PCB Key Map Physical structure for the TAS5504-5142V4EVM is illustrated in Figure 1-2. J400 J 300 J200 J100 5-V R egulator Gat e Drive Regulator 4-CHANNEL POWER STAGE TAS5142 PS U INTER FACE (J7 0) SPEAKER OUTPUTS TAS5504A CONTROL INTERFACE (J30) 3.3-V Regulator INPUT SIGNAL INTERFACE (J40) Figure 1-2.
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Chapter 2 SLEU075 – June 2006 – Revised June 2006 System Interfaces This chapter describes the TAS5504-5142V4EVM board, with regard to power supplies and system interfaces. Topic 2.1 2.2 2.3 2.4 .................................................................................................. Power Supply (PSU) Interface (J70) ............................................. Loudspeaker Connectors (J100 . . . J400)..................................... Control Interface (J40) ...............................
www.ti.com Power Supply (PSU) Interface (J70) 2.1 Power Supply (PSU) Interface (J70) The TAS5504-5142V4EVM module must be powered from external power supplies. High-end audio performance requires a stabilized power supply, with low ripple voltage and low output impedance. Note: The length of power-supply cable must be minimized. Increasing the length of PSU cable is equal to increasing the distortion for the amplifier at high output levels and low frequencies.
www.ti.com Loudspeaker Connectors (J100 . . . J400) Table 2-2. J70 Pin Description PIN NO. NET NAME AT SCHEMATICS 1 PVDD Output-stage power supply 2 2.2 DESCRIPTION System power supply 3 GND Ground 4 GND Ground Loudspeaker Connectors (J100 . . . J400) CAUTION Both positive and negative speaker outputs are floating and may not be connected to ground (e.g., through an oscilloscope). 2 1 (PCB Connector Top View) Figure 2-3. J100 . . . J400 Pin Numbers Table 2-3. J100 . . .
www.ti.com Control Interface (J40) 2.3 Control Interface (J40) This interface connects the TAS5504-5142V4EVM board to a TI input-USB board. Table 2-4. J40 Pin Description PIN NO. 14 NET NAME AT SCHEMATICS DESCRIPTION 1 GND 2 RESERVED Ground 3 GND 4 RESET System reset (bidirectional). Activate MUTE before RESET for quiet reset 5 BKND-ERR Backend error (or soft reset) provides reduced click and pop reset, without resetting I2C volume register settings.
www.ti.com Digital Audio Interface (J60) 2.4 Digital Audio Interface (J60) The digital audio interface contains digital audio signal data (I2S), clocks, etc. Please see the TAS5504A Data Manual for signal timing and details not explained in this document. Table 2-5. J60 Pin Description PIN NO. NET NAME AT SCHEMATICS 1 GND Ground 2 MCLK Master clock input. Low-jitter system clock for PWM generation and reclocking. Ground connection from source to TAS5504A must be a low impedance connection.
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Chapter 3 SLEU075 – June 2006 – Revised June 2006 Protection This section describes the short-circuit protection and fault-reporting circuitry of the TAS5142 device. Topic 3.1 3.2 .................................................................................................. Page Short-Circuit Protection and Fault-Reporting Circuitry .................. 18 Fault Reporting .........................................................................
www.ti.com Short-Circuit Protection and Fault-Reporting Circuitry 3.1 Short-Circuit Protection and Fault-Reporting Circuitry The TAS5142 is a self-protecting device that provides device fault reporting (including high-temperature protection and short-circuit protection). The TAS5142 is configured in back-end auto-recovery mode and therefore, resets automatically after all errors. This means that the device restarts itself after an error occasion and reports shortly through the SD signal. 3.
Chapter 4 SLEU075 – June 2006 – Revised June 2006 Configuration for 2.1 System The TAS5504-5142V4EVM can be configured for 2.1 operation. This gives two SE channels 30 W, and one BTL channel 60 W. This section describes actions needed to change the EVM to 2.1 operation. Topic 4.1 4.2 .................................................................................................. Page TAS5504-5542V4EVM for 2.1 System ........................................... 20 PCB Key Map for 2.1 Configuration ...
www.ti.com TAS5504-5542V4EVM for 2.1 System 4.1 TAS5504-5542V4EVM for 2.1 System POWER SUPPLY Channel 1 (SE) 6- Channel Analog Input Channel 2 (SE) Control Interface TAS5504A USB Interface TAS5142 I2C Bus Channel 3 (BTL) Optical and Coaxial S/PDIF Input I2S Bus Input−USB board TAS5504−5142V4EVM Module Figure 4-1. Integrated PurePath Digital™ Amplifier 2.1 System For operation in 2.1 mode, channel 3 and channel 4 are used to create a BTL channel.
www.ti.com PCB Key Map for 2.1 Configuration 4.2 PCB Key Map for 2.1 Configuration Physical structure for the TAS5504-5142V4EVM is illustrated in Figure 4-2. J200 J350 J100 PSU INTERFAC E (J70) SPEAKER OUTPUTS 5-V R e gulator G a te D rive R e gula tor 4- CHANNEL POWER STAGE TAS5142 TAS5504A CONTROL INTERFACE (J30) 3.3-V Regulator INPUT SIGNAL INTERFACE (J40) Figure 4-2.
EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
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