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Texas Instruments TAS5508-5142K7EVM manual

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Table of contents for the manual

  • 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

    2 SLEU071 – June 2006 Submit Documentation Feedback[...]

  • Page 3

    Contents 1 Overview ................................................................................................................... 5 1.1 TAS5508-5142K7EVM Features .................................................................................. 6 1.2 PCB Key Map ................................................................................[...]

  • Page 4

    List of Figures 1-1 Integrated PurePath Digital™ Amplifier System ......................................................................... 6 1-2 Physical Structure for TAS5508-5142K7EVM (Rough Outline) ....................................................... 7 2-1 Recommended Power-Up Sequence .....................................................[...]

  • Page 5

    Chapter 1 SLEU071 – June 2006 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?[...]

  • Page 6

    www.ti.com 1.1 TAS5508-5142K7EVM Features I2S Bus T AS 5508-5142K7EVM MODULE I2CBus Example TIInput-USB board 6 Channel Analog Input USB Interface Optical and Coaxia l S/PDIF Input ControlInterface PowerSupply 7 Channel SpeakerOutput 2 Channel HeadphoneOutput TAS5508-5142K7EVM Features • 7-channel PurePath Digital evaluation mod[...]

  • Page 7

    www.ti.com 1.2 PCB Key Map SPEAKEROUTPUTS SPEAKEROUTPUTS T AS 5508B OUTPUT STAGE CHANNEL 1 OUTPUT STAGE CHANNEL 3 OUTPUT STAGE CHANNEL 2 OUTPUT STAGE CHANNEL 4 OUTPUT STAGE CHANNEL 5 3.3V Regulator 5V Regulator Gate Drive Regulator PSU INTERFACE (J901) PSU CONTROL (J902) INPUT SIGNAL INTERFACE ( J60) CONTROL INTERFACE ( J40) HEADPHONE OUTPUT [...]

  • Page 8

    www.ti.com PCB Key Map Overview 8 SLEU071 – June 2006 Submit Documentation Feedback[...]

  • Page 9

    2.1 Power Supply (PSU) Interface (J901 and J900) Outputstagepowersupply RESET >1ms Systempowersupply 4 1 2 3 (PCBconnectortopview) Chapter 2 SLEU071 – June 2006 System Interfaces This chapter describes the TAS5508-5142K7EVM board in regards to power supplies and system interfaces. The TAS5508-5142K7EVM module must be po[...]

  • Page 10

    www.ti.com 2.2 PSU Control Interface (J902) 1 2 3 5 4 (PCBconnectortopview) 2.3 Loudspeaker Connectors (J101 … J107) PSU Control Interface (J902) Table 2-2. J901 Pin Description PIN NO. NET-NAME AT SCHEMATICS DESCRIPTION 1 PVDD Output-stage power supply 2 SYSTEM System power supply 3 GND Ground 4 GND Ground Table 2-3. J900 Pin Descriptio[...]

  • Page 11

    www.ti.com 1 2 (PCBconnectortopview) 2.4 Headphone Connector (J700) 1 4 2 3 2.5 Control Interface (J40) Headphone Connector (J700) Figure 2-4. J101 . . . J107 Pin Numbers Table 2-5. J101 . . . J107 Pin Description PIN NO. NET-NAME AT SCHEMATICS DESCRIPTION 1 OUT-1 Speaker negative output 2 OUT-2 Speaker positive output Figure 2-5. J700 Pin[...]

  • Page 12

    www.ti.com Control Interface (J40) Table 2-7. J40 Pin Description (continued) PIN NO. NET-NAME AT SCHEMATICS DESCRIPTION 11 GND Ground 12 SCL I 2 C bit clock 13 RESERVED — 14 RESERVED — 15 RESERVED — 16 RESERVED — 17 GND Ground 18 RESERVED — 19 RESERVED — 20 SD Shutdown error reporting for all channels. Activated if TAS5142 has high cur[...]

  • Page 13

    www.ti.com 2.6 Digital Audio Interface (J60) Digital Audio Interface (J60) The digital audio interface contains digital audio signal data (I 2 S), clocks, etc. Please see the TAS5508B Data Manual for signal timing and details not explained in this document. Table 2-8. J60 Pin Description PIN NO. NET-NAME AT SCHEMATICS DESCRIPTION 1 GND Ground 2 MCL[...]

  • Page 14

    www.ti.com Digital Audio Interface (J60) System Interfaces 14 SLEU071 – June 2006 Submit Documentation Feedback[...]

  • Page 15

    3.1 Short-Circuit Protection and Fault-Reporting Circuitry 3.2 Fault Reporting Chapter 3 SLEU071 – June 2006 Protection This chapter describes the short-circuit protection and fault-reporting circuitry of the TAS5142 device. The TAS5142 is a self-protecting device that provides fault reporting (including high-temperature protection and short-circ[...]

  • Page 16

    www.ti.com Fault Reporting Protection 16 SLEU071 – June 2006 Submit Documentation Feedback[...]

  • Page 17

    4.1 Trademarks Chapter 4 SLEU071 – June 2006 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 ) • TAS5142 data [...]

  • Page 18

    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 th[...]

  • Page 19

    EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 0 to 32 V and the output voltage range of 15 V to 20 V. Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representat[...]

  • Page 20

    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[...]