TAS5086-5186V6EVM User’s Guide Evaluation Module for the TAS5086 6-Channel Digital Audio PWM Processor and Power Output Stage TAS5186A Digital Amplifier User's Guide JULY 2006 SLEU073
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Contents 1 2 Overview TAS5086-5186V6EVM Features.................................................................................. 6 1.2 PCB Key Map ....................................................................................................... 6 2.2 2.3 2.4 ................................................................................................................ 11 ....................................................... 11 Device Fault Reporting ........................................
List of Figures 1-1 1-2 2-1 2-2 2-3 Integrated PurePath Digital™ Amplifier System ......................................................................... Physical Structure for TAS5086-5186V6EVM (Rough Outline) ....................................................... Recommended Power-Up Sequence ..................................................................................... J901 Pin Numbers ...........................................................................................................
Chapter 1 SLEU073 – JULY 2006 Overview The TAS5086-5186V6EVM PurePath Digital™ customer evaluation amplifier module demonstrates two audio integrated circuits, TAS5086 and TAS5186ADDV, from Texas Instruments (TI). The TAS5086DBT 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 TAS5086-5186V6EVM Features 1.1 TAS5086-5186V6EVM Features • • • • 5.
Chapter 2 SLEU073 – JULY 2006 System Interfaces This chapter describes the TAS5086-5186V6EVM board in regards to power supplies and system interfaces. 2.1 Power Supply (PSU) Interface (J901) The TAS5086-5186V6EVM 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.
www.ti.com Loudspeaker Connectors (J101 … J106) Table 2-2. J901 Pin Description 2.2 PIN NO. NET-NAME AT SCHEMATICS DESCRIPTION 1 PVDD 2 — 3 GND Ground 4 GND Ground Output-stage power supply System power supply Loudspeaker Connectors (J101 … J106) 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. J101 . . . J106 Pin Numbers Table 2-3. J101 . . .
www.ti.com Control Interface (J40) Table 2-4. J40 Pin Description (continued) PIN NO.
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 TAS5086 Data Manual for signal timing and details not explained in this document. Table 2-5. J60 Pin Description 10 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 TAS5086 must be a low impedance connection.
Chapter 3 SLEU073 – JULY 2006 Protection This chapter describes the short-circuit protection and fault-reporting circuitry of the TAS5142 device. 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 TAS5186A is configured in back-end auto-recovery mode and, therefore, resets automatically after all errors.
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Chapter 4 SLEU073 – JULY 2006 Related Documentation from Texas Instruments The following documents have detailed descriptions of the integrated circuits used in the design of the TAS5508-5142V6EVM. The documentation can be obtained at the URL http://www.ti.com.
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.
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
