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Contents

Contents

Overview

1-1

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1.1

TAS5508

−

5121K8EVM Features

1-2

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1.2

PCB Key Map

1-3

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System Interfaces

2-1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1

Power Supply (PSU) Interface (J70, J71, and J73)

2-2

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2.1.1

PSU Control Interface (J72)

2-3

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2.2

Loudspeaker Connectors (J100 . . . J800)

2-4

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2.3

Line Out Connectors (J950 and J951)

2-4

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2.4

Headphone Connector (J900)

2-5

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2.5

Line Output Select (J50)

2-5

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2.6

Headphone Select (J32)

2-5

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2.7

Control Interface (J30)

2-6

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2.8

Digital Audio Interface (J40)

2-7

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Protection

3-1

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3.1

Short-Circuit Protection and Fault-Reporting Circuitry

3-2

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3.2

Device Fault Reporting

3-3

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Содержание TAS5121

Страница 1: ...TAS5508 5121K8EVM Evaluation Module for the TAS5508B 8 Channel Digital Audio PWM Processor and the TAS5121 Digital Amplifier Power Output Stage User s Guide...

Страница 2: ...ute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual pro...

Страница 3: ...o take any and all appropriate precautions with regard to electrostatic discharge EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPEC...

Страница 4: ...M output If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 75 C The...

Страница 5: ...3 Protection Information About Cautions and Warnings This manual may contain cautions and warnings This is an example of a caution statement A caution statement describes a situation that could poten...

Страница 6: ...ication Report SLEA034A PC Configuration Tool for TAS5508B TAS5508 GUI ver 2 1 or later General Application Notes FCC Warning This equipment is intended for use in a laboratory test environment only I...

Страница 7: ...ntrol Interface J72 2 3 2 2 Loudspeaker Connectors J100 J800 2 4 2 3 Line Out Connectors J950 and J951 2 4 2 4 Headphone Connector J900 2 5 2 5 Line Output Select J50 2 5 2 6 Headphone Select J32 2 5...

Страница 8: ...7 J900 Pin Numbers 2 5 2 8 J50 Pin Numbers 2 5 2 9 J32 Pin Numbers 2 5 Tables 2 1 Recommended Supply Voltages 2 2 2 2 J71 Pin Description 2 3 2 3 J70 Pin Description 2 3 2 4 J73 Pin Description 2 3 2...

Страница 9: ...KD contains integrated gate drivers four matched and electrically isolated enhancement mode N channel power DMOS transistors and protection fault reporting circuitry The DKD package has a PowerPAD on...

Страница 10: ...l Standard I2S and I2C control connector for TI input board Double sided plated through PCB layout Figure 1 1 Integrated PurePath DigitalE Amplifier System I2S Bus TAS5508 5121K8EVM Module I2C Bus Exa...

Страница 11: ...V Regulator Gate Drive Regulator PSU Interface J73 PSU Interface J71 PSU Control J72 Input Signal Interface J40 Control Interface J30 Headphone Output J900 Left Line Output J950 Right Line Output J95...

Страница 12: ...1 4...

Страница 13: ...aces Topic Page 2 1 Power Supply PSU Interface J70 J71 and J73 2 2 2 2 Loudspeaker Connectors J100 J800 2 4 2 3 Line Out Connectors J950 and J951 2 4 2 4 Headphone Connector J900 2 5 2 5 Line Output S...

Страница 14: ...m supply voltage in the TAS5121 data sheet SLES086 Table 2 1 Recommended Supply Voltages Description Voltage Limitations 4 W load Current Recommendations System power supply 15 20 V 0 3 A Output stage...

Страница 15: ...1 V HBRIDGE Extra output stage power supply 2 V HBRIDGE Extra output stage power supply 3 GND Extra ground 4 GND Extra ground Figure 2 3 J73 Pin Numbers 1 2 PCB connector top view Table 2 4 J73 Pin De...

Страница 16: ...are floating and may not be connected to ground e g through an oscilloscope Figure 2 5 J100 J800 Pin Numbers 1 2 PCB connector top view Table 2 6 J100 J800 Pin Description Pin No Net Name at Schemati...

Страница 17: ...ription 1 OUT L Left headphone output 2 GND Ground 3 For future use 4 OUT R Right headphone output 2 5 Line Output Select J50 Figure 2 8 J50 Pin Numbers Table 2 9 J50 Pin Description Pin No Descriptio...

Страница 18: ...ND Ground 12 SCL I2C bit clock 13 14 RESERVED 15 CONF SEL Configuration select Channel 5 and 6 speaker outputs active and line outputs inactive when high Line outputs active and channel 5 and 6 speake...

Страница 19: ...me at Schematics Description 1 GND Ground 2 MCLK Master clock input Low jitter system clock for PWM generation and reclocking Ground connection from source to the TAS5508B must be a low impedance conn...

Страница 20: ...2 8...

Страница 21: ...ion This chapter describes the short circuit protection and fault reporting circuitry of the TAS5121 device Topic Page 3 1 Short Circuit Protection and Fault Reporting Circuitry 3 2 3 2 Device Fault R...

Страница 22: ...device restarts itself after an error occasion and reports shortly through SD1 and SD2 error signals The shutdown report signals are separated into two wires SD1 and SD2 SD1 covers the primary inform...

Страница 23: ...annel allocation Table 3 1 Channel Allocation Description Terminal Shutdown Signal Front left J100 SD1 Front right J200 SD1 Rear left J300 SD2 Rear right J400 SD2 Surround left or line out left J500 S...

Страница 24: ...3 4...

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