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Manual Texas Instruments TAS5508-5121K8EVM

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  • Texas Instruments TAS5508-5121K8EVM - page 1

    T AS5508−5121K8EVM Evaluation Module for the T AS5508B 8 -Channel Digital Audio PWM Pr ocessor and the T AS5121 Digital Amplifier Power Output S tage User ’ s G uide ...

  • Texas Instruments TAS5508-5121K8EVM - 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 ...

  • Texas Instruments TAS5508-5121K8EVM - page 3

    EV ALUA TION BOARD/KIT IMPORT ANT NOTICE T exas Instruments (TI) provides the enclosed product(s) under the following conditions:. This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT , DEMONSTRA TION, OR EV ALUA TION PURPOSES ONL Y and is not considered by TI to be a finished end − product fit for general consumer use. Perso ...

  • Texas Instruments TAS5508-5121K8EVM - page 4

    EVM W ARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 0–29.5 V and the output voltage range of 15–20 V for the system supply . 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 ...

  • Texas Instruments TAS5508-5121K8EVM - page 5

    iii Read This First Preface Read This First About This Manual This manual describes the operation of the T AS5508 − 5121K8EVM 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 — Protection Information About Cauti ...

  • Texas Instruments TAS5508-5121K8EVM - page 6

    iv Related Documentation From T exas Instruments The following table contains a list of data manuals that have detailed descriptions of the integrated circuits used in the design of the T AS5508 − 5121K8EVM. The data manuals can be obtained at the URL http://www .ti.com. Part Number Literature Number T AS5508B SLES162 T AS5121 SLES086 TL V272 SLO ...

  • Texas Instruments TAS5508-5121K8EVM - page 7

    v Contents Contents 1 Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 T AS5508 − 5121K8EVM Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 PCB Key Map 1-3 . . . . . . . . . . . ...

  • Texas Instruments TAS5508-5121K8EVM - page 8

    vi Figures 1 − 1 Integrated PurePath Digital t Amplifier System 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 − 2 Physical Structure for the T AS5508 − 5121K8EVM (Rough Outline) 1-3 . . . . . . . . . . . . . . . . . . . 2 − 1 Recommended Power-Up Sequence 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Texas Instruments TAS5508-5121K8EVM - page 9

    1-1 Overview Overview The T AS5508 − 5121K8EVM PurePath Digital ™ customer evaluation amplifier module demonstrates two audio integrated circuits, T AS5508B and T AS5121, from T exas Instruments (TI). The T AS5508BP AG is a high-performance 32-bit (24-bit input) multichannel PurePath Digital pulse width modulator (PWM) based on Equibit ™ tech ...

  • Texas Instruments TAS5508-5121K8EVM - page 10

    T AS5508 − 5121K8EVM Features 1-2 1.1 T AS5508 − 5121K8EVM Features - 8-channel PurePath Digital evaluation module - Stereo channel line output - Stereo headphone output - 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 ...

  • Texas Instruments TAS5508-5121K8EVM - page 11

    PCB Key Map 1-3 Overview 1.2 PCB Key Map The physical structure for the T AS5508 − 5121K8EVM is illustrated in Figure 1 − 2. Figure 1 − 2. Physical Structure for T AS5508 − 5121K8EVM (Rough Outline) Speaker Outputs Speaker Outputs T AS5508B 3.3 − V Regulator 5 − V Regulator Gate Drive Regulator PSU Interface (J73) PSU Interface (J71) PS ...

  • Texas Instruments TAS5508-5121K8EVM - page 12

    1-4 ...

  • Texas Instruments TAS5508-5121K8EVM - page 13

    2-1 System Interfaces   This chapter describes the T AS5508 − 5121K8EVM board in regards to power supplies and system interfaces. T opic Page 2.1 Power Supply (PSU) Interface (J70, J71, and J73) 2-2 . . . . . . . . . . . . . . . . 2.2 Loudspeaker Connectors (J100 . . . J800) 2-4 . . . . . . . . . . ...

  • Texas Instruments TAS5508-5121K8EVM - page 14

    Power Supply (PSU) Interface (J70, J71, and J73) 2-2 2.1 Power Supply (PSU) Interface (J70, J71, and J73) The T AS5508 − 5121K8EVM 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 the power supply cable must be m ...

  • Texas Instruments TAS5508-5121K8EVM - page 15

    Power Supply (PSU) Interface (J70, J71, and J73) 2-3 System Interfaces T able 2 − 2. J71 Pin Description Pin No. 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. J70 Pin Description (Optional − Use to decrease of impedance to reach better performance) P ...

  • Texas Instruments TAS5508-5121K8EVM - page 16

    Loudspeaker Connectors (J100 . . . J800) 2-4 T able 2 − 5. J72 Pin Description Pin No. Net-Name at Schematics Description 1 — Reserved for future use 2 V -HBRIDGE Sense of output power supply 3 GND Ground 4 RESET System reset (bidirectional) 5 PSVC Power-supply volume control signal 2.2 Loudspeaker Connectors (J100 . . . J800) Both positive and ...

  • Texas Instruments TAS5508-5121K8EVM - page 17

    Headphone Connector (J900) 2-5 System Interfaces 2.4 Headphone Connector (J900) Figure 2 − 7. J900 Pin Numbers (PCB connector top view) 2 3 4 1 T able 2 − 8. J900 Pin Description Pin No. Net-Name at Schematics Description 1 OUT − L Left headphone output 2 GND Ground 3 — For future use 4 OUT − R Right headphone output 2.5 Line Output Selec ...

  • Texas Instruments TAS5508-5121K8EVM - page 18

    Control Interface (J30) 2-6 2.7 Control Interface (J30) This interface connects the T AS5508 − 5121K8EVM board to a TI input board. T able 2 − 1 1. J30 Pin Description Pin No. Net-Name at Schematics Description 1 GND Ground 2 PSVC − MCPU Power supply volume control from (mC) input board 3 GND Ground 4 RESET System reset (bidirectional). Activ ...

  • Texas Instruments TAS5508-5121K8EVM - page 19

    Digital Audio Interface (J40) 2-7 System Interfaces 2.8 Digital Audio Interface (J40) The digital audio interface contains digital audio signal data (I 2 S), clocks, etc. See the T AS5508B Data Manual (SLES162) for signal timing and details not explained in this document. T able 2 − 12. J40 Pin Description Pin No. Net-Name at Schematics Descripti ...

  • Texas Instruments TAS5508-5121K8EVM - page 20

    2-8 ...

  • Texas Instruments TAS5508-5121K8EVM - page 21

    3-1 Protection Protection This chapter describes the short-circuit protection and fault-reporting circuitry of the T AS5121 device. T opic Page 3.1 Short-Circuit Protection and Fault-Reporting Circuitry 3-2 . . . . . . . . . . . 3.2 Device Fault Reporting 3-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 3 ...

  • Texas Instruments TAS5508-5121K8EVM - page 22

    Short-Circuit Protection and Fault-Reporting Circuitry 3-2 3.1 Short-Circuit Protection and Fault-Reporting Circuitry The T AS5121 is a self-protecting device that provides device fault reporting (including high-temperature protection and short-circuit protection). The T AS5121 is configured in back-end auto-recovery mode and, therefore, resets aut ...

  • Texas Instruments TAS5508-5121K8EVM - page 23

    Device Fault Reporting 3-3 Protection 3.2 Device Fault Reporting Th e OTW and SD outputs from the T AS5121 indicate fault conditions. See the T AS5121 data sheet (SLES086) for a description of these pins. The temperature warning signals at the T AS5508 − 5121K8EVM board are wired-OR to one temperature warning signal [OTW – pin 22 in control int ...

  • Texas Instruments TAS5508-5121K8EVM - page 24

    3-4 ...

Manufacturer Texas Instruments Category Stereo Amplifier

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