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Summary of Contents for Texas Instruments TAS5508-5142K7EVM
- Page 1 TAS5508-5142K7EVM User’s Guide Evaluation Module for the TAS5508B Digital Audio PWM Processor and TAS5142 Digital Amplifier Power Output Stage User's Guide June 2006 SLEU071...
- Page 2 SLEU071 – June 2006 Submit Documentation Feedback...
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Page 3: Table Of Contents
PSU Control Interface (J902) Loudspeaker Connectors (J101 Headphone Connector (J700) Control Interface (J40) Digital Audio Interface (J60) Protection Short-Circuit Protection and Fault-Reporting Circuitry Fault Reporting Related Documentation From Texas Instruments Trademarks Important Notices SLEU071 – June 2006 Submit Documentation Feedback J107) Contents Contents... - Page 4 Integrated PurePath Digital™ Amplifier System Physical Structure for TAS5508-5142K7EVM (Rough Outline) Recommended Power-Up Sequence J901 and J900 Pin Numbers J902 Pin Numbers J101 . . . J107 Pin Numbers J700 Pin Numbers Recommended Supply Voltages J901 Pin Description J900 Pin Description J902 Pin Description J101 .
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Page 5: Overview
The TAS5508-5142K7EVM PurePath Digital™ customer evaluation amplifier module demonstrates two audio integrated circuits, TAS5508B and TAS5142, from Texas Instruments (TI). The TAS5508BPAG 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. -
Page 6: Tas5508-5142K7Evm Features
TAS5508-5142K7EVM Features TAS5508-5142K7EVM Features 7-channel PurePath Digital evaluation module (double-sided plated-through PCB layout) Stereo channel line output Stereo headphone output Self-contained protection system (short circuit and thermal) Standard I S and I C/control connector for TI input board Double-sided plated-through PCB layout... -
Page 7: Pcb Key Map
PCB Key Map Physical structure for the TAS5508-5142K7EVM is illustrated in CONTROL J107 (J902) HEADPHONE OUTPUT (J700) Figure 1-2. Physical Structure for TAS5508-5142K7EVM (Rough Outline) SLEU071 – June 2006 Submit Documentation Feedback J106 J105 J104 INTERFACE (J900) SPEAKER OUTPUTS... - Page 8 www.ti.com PCB Key Map Overview SLEU071 – June 2006 Submit Documentation Feedback...
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Page 9: System Interfaces
This chapter describes the TAS5508-5142K7EVM board in regards to power supplies and system interfaces. Power Supply (PSU) Interface (J901 and J900) The TAS5508-5142K7EVM 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. -
Page 10: Psu Control Interface (J902)
PSU Control Interface (J902) PIN NO. PIN NO. PSU Control Interface (J902) This interface is used for onboard sensing of output supply voltage and for the power supply volume control (PSVC) signal. PIN NO. Loudspeaker Connectors (J101 Both positive and negative speaker outputs are floating and may not be connected to ground (e.g., through an oscilloscope). -
Page 11: Headphone Connector (J700)
PIN NO. Headphone Connector (J700) PIN NO. Control Interface (J40) This interface connects the TAS5508-5142K7EVM board to a TI input-USB board. PIN NO. SLEU071 – June 2006 Submit Documentation Feedback (PCB connector top view) Figure 2-4. J101 . . . J107 Pin Numbers Table 2-5. - Page 12 Control Interface (J40) PIN NO. System Interfaces Table 2-7. J40 Pin Description (continued) NET-NAME AT SCHEMATICS DESCRIPTION Ground C bit clock RESERVED — RESERVED — RESERVED — RESERVED — Ground RESERVED — RESERVED — Shutdown error reporting for all channels. Activated if TAS5142 has high current or high temperature.
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Page 13: Digital Audio Interface (J60)
www.ti.com Digital Audio Interface (J60) The digital audio interface contains digital audio signal data (I Data Manual for signal timing and details not explained in this document. PIN NO. SLEU071 – June 2006 Submit Documentation Feedback S), clocks, etc. Please see the TAS5508B Table 2-8. - Page 14 www.ti.com Digital Audio Interface (J60) System Interfaces SLEU071 – June 2006 Submit Documentation Feedback...
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Page 15: Protection
Manual for a description of these pins. Table 3-1. TAS5142 Warning/Error Signal Decoding The temperature warning signals at the TAS5508-5142K7EVM board are wired-OR to one temperature warning signal (OTW – pin 22 in control interface connector). Shutdown signals are wired-OR into one shutdown signal (SD –... - Page 16 www.ti.com Fault Reporting Protection SLEU071 – June 2006 Submit Documentation Feedback...
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Page 17: Related Documentation From Texas Instruments
Related Documentation From Texas Instruments The following is a list of documents that have detailed descriptions of the integrated circuits used in the design of the TAS5508-5142K7EVM. This information can be obtained at the URL http://www.ti.com. TAS5508B data sheet (SLES162) -
Page 18: Evaluation Board/Kit Important Notice
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. - Page 19 EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2006, Texas Instruments Incorporated...
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Page 20: Important Notice
TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Amplifiers amplifier.ti.com...
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