Texas Instruments TAS5121 - Manuals

Page 5 - Preface; Read This First; About This Manual; damage your software or equipment.

iii Read This First Preface Read This First About This Manual This manual describes the operation of the TAS5508 − 5121K8EVM evaluation module from Texas Instruments. How to Use This Manual This document contains the following chapters: - Chapter 1 — Overview - Chapter 2 — System Interfaces - Chapte...

Page 6 - Related Documentation From Texas Instruments; 121K8EVM. The data manuals can be obtained at the URL; Additional Documentation

iv Related Documentation From Texas Instruments The following table contains a list of data manuals that have detaileddescriptions of the integrated circuits used in the design of theTAS5508 − 5121K8EVM. The data manuals can be obtained at the URL http://www.ti.com. Part Number Literature Number TAS...

Page 7 - Contents; Overview; PCB Key Map; System Interfaces; Short-Circuit Protection and Fault-Reporting Circuitry

v Contents Contents 1 Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 TAS5508 − 5121K8EVM Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 9 - customer evaluation amplifier; Topic; Chapter 1

1-1 Overview Overview The TAS5508 − 5121K8EVM PurePath Digital ™ customer evaluation amplifier module demonstrates two audio integrated circuits, TAS5508B and TAS5121,from Texas Instruments (TI). The TAS5508BPAG is a high-performance 32-bit (24-bit input) multichannelPurePath Digital pulse width mod...

Page 11 - The physical structure for the TAS5508; Figure 1

PCB Key Map 1-3 Overview 1.2 PCB Key Map The physical structure for the TAS5508 − 5121K8EVM is illustrated in Figure 1 − 2. Figure 1 − 2. Physical Structure for TAS5508 − 5121K8EVM (Rough Outline) Speaker Outputs Speaker Outputs TAS5508B 3.3 − V Regulator 5 − V Regulator Gate Drive Regulator PSU Int...

Page 13 - This chapter describes the TAS5508; Chapter 2

2-1 System Interfaces This chapter describes the TAS5508 − 5121K8EVM board in regards to power supplies and system interfaces. Topic Page 2.1 Power Supply (PSU) Interface (J70, J71, and J73) 2-2 . . . . . . . . . . . . . . . . 2.2 Loudspeaker Connectors (J100 . . . J800) 2-4 . . . . . . . . . . . . ...

Page 14 - Table 2; The recommended TAS5121 power-up sequence is shown in Figure 2; Figure 2

Power Supply (PSU) Interface (J70, J71, and J73) 2-2 2.1 Power Supply (PSU) Interface (J70, J71, and J73) The TAS5508 − 5121K8EVM module must be powered from external power supplies. High-end audio performance requires a stabilized power supply withlow ripple voltage and low output impedance. Note: ...

Page 16 - Both positive and negative speaker outputs are floating and may

Loudspeaker Connectors (J100 . . . J800) 2-4 Table 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 Co...

Page 19 - The digital audio interface contains digital audio signal data (I

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 TAS5508B Data Manual (SLES162) for signal timing and details not explained in this document. Table 2 − 12. J40 Pin Descri...

Page 21 - Protection; Chapter 3

3-1 Protection Protection This chapter describes the short-circuit protection and fault-reporting circuitryof the TAS5121 device. Topic Page 3.1 Short-Circuit Protection and Fault-Reporting Circuitry 3-2 . . . . . . . . . . . 3.2 Device Fault Reporting 3-3 . . . . . . . . . . . . . . . . . . . . . ....

Page 23 - Device Fault Reporting; The temperature warning signals at the TAS5508; Device fault reporting outputs are; Table 3

Device Fault Reporting 3-3 Protection 3.2 Device Fault Reporting The OTW and SD outputs from the TAS5121 indicate fault conditions. See theTAS5121 data sheet (SLES086) for a description of these pins. The temperature warning signals at the TAS5508 − 5121K8EVM board are wired-OR to one temperature wa...