Texas Instruments TAS5066PAG manual

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Table of contents for the manual

  • Page 1

         E            !""     #?[...]

  • Page 2

    IMPORT ANT NOTICE T exas 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 orde[...]

  • Page 3

    EVM IMPORT ANT NOTICE T exas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EV ALUA TION PURPOSES ONL Y and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of[...]

  • Page 4

    EVM W ARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of xxx V and the output voltage range of xxx V and xxx 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 representa[...]

  • Page 5

    Notational Conventions v Preface  About This Manual This manual describes the operation of the T AS5066-51 1 1D6EVM evaluation module from T exas Instruments. How to Use This Manual This document contains the following chapters: - Chapter 1 — Overview - Chapter 2 — System Interfaces - Chapter 3 — P[...]

  • Page 6

    T rademarks vi Related Documentation from T exas Instruments The following table contains a list of data manuals that have detailed descrip- tions of the integrated circuits used in the design of the T AS5066−51 1 1D6EVM. The data manuals can be obtained at the URL http://www .ti.com . Part Number Literature Number T AS5066P AG SLES089 T AS51 1 1[...]

  • Page 7

    Contents vii  1 Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 T AS5066-51 1 1D6EVM Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 PCB Key Map 1-3 . .[...]

  • Page 8

    Contents viii  1−1 Complete PurePath Digital System 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1−2 Physical Structure for the T AS5066-51 1 1D6EVM 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2−1 Recommended Power-Up Sequence 2-2 . . . . . . .[...]

  • Page 9

    1-1 Overview  The T AS5066−51 1 1D6EVM PurePath Digital t customer evaluation module demonstrates two integrated circuits T AS5066 and T AS51 1 1DAD from T exas Instruments (TI). The T AS5066 is a high-performance 24-bit six-channel digital pulse width modulator (PWM) based on Equibit TM technology . The T AS5066 has a wid[...]

  • Page 10

    T AS5066-51 1 1D6EVM Features 1-2 1.1 T AS5066-51 1 1D6EVM Features - 6-channel PurePath Digital t evaluation module - Self-contained protection system (short circuit and thermal) - Standard I 2 S and I 2 C/control connector for TI input board - Double-sided plated-through PCB layout Figure 1−1. Complete PurePath Digital E System Control interfac[...]

  • Page 11

    PCB Key Map 1-3 Overview 1.2 PCB Key Map The physical structure for the T AS5066−51 1 1D6EVM is illustrated in the fol- lowing figure. Figure 1−2. Physical Structure for the T AS5066-51 1 1D6EVM CHANNEL 1 CHANNEL 6 CHANNEL 5 CHANNEL 4 CHANNEL 3 CHANNEL 2 J600 J500 J400 J300 J200 J100 J902 PSU CONTROL J901 PSU IINTERFACE OUTPUT ST AGE OUTPUT ST [...]

  • Page 12

    1-4[...]

  • Page 13

    2-1 System Interfaces   This chapter describes the T AS5066−51 1 1D6EVM board in regards to power supply (PSU) and system interfaces. T opic Page 2.1 PSU Interface (J901) 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 PSU Control Interface (J902) 2-4 . [...]

  • Page 14

    PSU Interface (J901) 2-2 2.1 PSU Interface (J901) The T AS5066−51 1 1D6EVM module must be powered from one or two exter- nal regulated power supplies. High audio performance requires a stabilized output stage power supply with low ripple voltage and low output impedance. Note: The length of power supply cable must be minimized. Increasing length [...]

  • Page 15

    PSU Interface (J901) 2-3 System Interfaces Figure 2−2. J901 and J903 Pin Numbers (PCB Connector T op View) 4 3 2 1 T able 2−2. J901 Pin Description Pin Number Net-Name at Schematics Description 1 V -HBRIDGE Output stage power supply 2 − System power supply 3 GND Ground 4 GND Ground T able 2−3. J903 Pin Description Pin Number Net-Name at Sch[...]

  • Page 16

    PSU Control Interface (J902) 2-4 2.2 PSU Control Interface (J902) This interface is used for on-board sensing of output supply voltage and for power supply volume control (PSCV) signal. Figure 2−3. J902 Pin Numbers (PCB Connector T op View) 4 3 2 1 5 T able 2−4. J902 Pin Description Pin Number Net-Name at Schematics Description 1 NOT USED − 2[...]

  • Page 17

    Loudspeaker Connectors (J100 − J600) 2-5 System Interfaces 2.3 Loudspeaker Connectors (J100 − J600) Both positive and negative speaker outputs are floating and may not be connected to ground (e.g., through an oscilloscope). Figure 2−4. J100 − J600 Pin Numbers (PCB Connector T op View) 2 1 T able 2−5. J100− J600 Pin Description Pin Numbe[...]

  • Page 18

    Control Interface (J50) 2-6 2.4 Control Interface (J50) This interface connects the T AS5066-51 1 1D6EVM board to a TI input board. T able 2−6. J50 Pin Description Pin Number Net-Name at Schematics Description 1 GND Ground 2 PSVC Power supply volume control from (mC) input board 3 GND Ground 4 RESET System reset (bi-directional). Activate MUTE be[...]

  • Page 19

    Digital Audio Interface (J51) 2-7 System Interfaces 2.5 Digital Audio Interface (J51) The digital audio interface contains digital audio signal data (I2S), clocks etc. Please see the T AS5066 data manual for signal timing and details not ex- plained in this document. T able 2−7. J51 Pin Description Pin Number Net-Name at Schematics Description 1 [...]

  • Page 20

    PWM Timing, Interchannel Delay Registers 2-8 2.6 PWM Timing, Interchannel Delay Registers Fo r maximum performance, the PWM timing must be optimized for the specific configuration and PCB layout. The default values in T AS5066 is properly not optimal in many designs and therefore the interchannel delays must be pro- grammed by I2C to the T AS5066 a[...]

  • Page 21

    3-1 Protection  This chapter describes the short circuit protection and fault reporting circuitry of the T AS51 1 1 device. T opic Page 3.1 Short Circuit Protection and Fault Reporting Circuitry 3-2 . . . . . . . . . . . 3.2 Device Fault Reporting 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 22

    Short Circuit Protection and Fault Reporting Circuitry 3-2 3.1 Short Circuit Protection and Fault Reporting Circuitry T AS51 1 1 i s a self-protecting device that provides device fault reporting (includ- ing high-temperature protection and short circuit protection). T AS51 1 1 i s con- figured in back-end auto-recovery mode and therefore resets aut[...]