Texas Instruments TAS5066-5111D6EVM PurePath Digital User Manual Download Page 21

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3-1

Protection

This chapter describes the short circuit protection and fault reporting circuitry
of the TAS5111 device.

Topic

Page

3.1

Short Circuit Protection and Fault Reporting Circuitry

3-2

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3.2

Device Fault Reporting

3-2

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Chapter 3

Summary of Contents for TAS5066-5111D6EVM PurePath Digital

Page 1: ... E March 2004 Digital Audio and Video Products User s Guide SLEU052 ...

Page 2: ...tute 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 property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of information in TI data books or data sheets is permissible only if reproduction is...

Page 3: ... handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s responsibility to 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 A...

Page 4: ...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 xxx C The EVM is designed to operate properly with certain components above xxx C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching transi...

Page 5: ...otection Information about Cautions and Warnings This document may contain cautions and warnings This is an example of a caution statement A caution statement describes a situation that could potentially damage your software or equipment This is an example of a warning statement A warning statement describes a situation that could potentially cause harm to you The information in a caution or a war...

Page 6: ... Tool for TAS50XX DAS TCT 50xx version 3 1 or later General Application Notes FCC Warning This equipment is intended for use in a laboratory test environment only It gen erates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules which are designed to provide reasonable protection again...

Page 7: ...nterface J901 2 2 2 2 PSU Control Interface J902 2 4 2 3 Loudspeaker Connectors J100 J600 2 5 2 4 Control Interface J50 2 6 2 5 Digital Audio Interface J51 2 7 2 6 PWM Timing Interchannel Delay Registers 2 8 3 Protection 3 1 3 1 Short Circuit Protection and Fault Reporting Circuitry 3 2 3 2 Device Fault Reporting 3 2 ...

Page 8: ...PCB Connector Top View 2 4 2 4 J100 J600 Pin Numbers PCB Connector Top View 2 5 2 1 Recommended Power Supplies 2 2 2 2 J901 Pin Description 2 3 2 3 J903 Pin Description 2 3 2 4 J902 Pin Description 2 4 2 5 J100 J600 Pin Description 2 5 2 6 J50 Pin Description 2 6 2 7 J51 Pin Description 2 7 2 8 Clock Rates 2 7 2 9 Recommended Interchannel Delay Register Values based on EVM designs 2 8 3 1 TAS5111 ...

Page 9: ...nce digital amplifier power stage designed to drive a 4 Ohm loudspeaker up to 85 W It contains integrated gate drivers four matched and electrically isolated enhancement mode N channel power DMOS transistors and protection fault reporting circuitry The TAS5066 5111D6EVM together with a TI input board is a complete digi tal audio amplifier system that includes digital input S PDIF analog input in t...

Page 10: ... circuit and thermal Standard I2S and I2C control connector for TI input board Double sided plated through PCB layout Figure 1 1 Complete PurePath DigitalE System Control interface 6 channel analog input I2C bus PC interface I2S bus Optical and coaxial S PDIF input TAS5066 5111D6EVM module Subwoofer line out Power supply Example TI input PC board ...

Page 11: ...e Figure 1 2 Physical Structure for the TAS5066 5111D6EVM 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 STAGE OUTPUT STAGE OUTPUT STAGE OUTPUT STAGE OUTPUT STAGE OUTPUT STAGE J903 H Bridge PSU TAS5066 J50 CONTROL INTERFACE J51 AUDIO INTERFACE ...

Page 12: ...1 4 ...

Page 13: ...ds to power supply PSU and system interfaces Topic Page 2 1 PSU Interface J901 2 2 2 2 PSU Control Interface J902 2 4 2 3 Loudspeaker Connectors J100 J600 2 5 2 4 Control Interface J50 2 6 2 5 Digital Audio Interface J51 2 7 2 6 PWM Timing Interchannel Delay Registers 2 8 Chapter 2 ...

Page 14: ...the recommended maximum supply voltage in the TAS5111 datasheet Table 2 1 Recommended Power Supplies Description Voltage Limitations 4 W Load Current Recommendations System power supply 15 to 20 V 0 25 A Output power stage supply 0 to 29 5 V 5 5 A The rated current corresponds to 2 channel full scale 70 W each or 6 channel 1 8 scale 9 W each which most likely is adequate for a standard 6 channel a...

Page 15: ... at Schematics Description 1 V HBRIDGE Output stage power supply 2 System power supply 3 GND Ground 4 GND Ground Table 2 3 J903 Pin Description Pin Number Net Name at Schematics Description 1 V HBRIDGE Output stage power supply 2 V HBRIDGE Output stage power supply 3 GND Ground 4 GND Ground Note Optional use to decrease impedance to achieve better performance ...

Page 16: ...tage and for power supply volume control PSCV signal Figure 2 3 J902 Pin Numbers PCB Connector Top View 4 3 2 1 5 Table 2 4 J902 Pin Description Pin Number Net Name at Schematics Description 1 NOT USED 2 V HBRIDGE Sense of output supply voltage 3 GND Ground 4 RESET System reset bi directional 5 PSVC Power supply volume control ...

Page 17: ...nd 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 Top View 2 1 Table 2 5 J100 J600 Pin Description Pin Number Net Name at Schematics Description 1 OUT 1 Speaker negative output 2 OUT 2 Speaker positive output ...

Page 18: ...tivated by I2C 7 PDN Power down TAS5066 enters the power down state when acti vated 8 9 RESERVED 10 SDA I2C data clock 11 GND Ground 12 SCL I2C bit clock 13 14 RESERVED 15 DBSPD Double speed mode Double speed active when high and inac tive when low 16 CLIP_MODULATOR Clipping indicator from TAS5066 Indicates 0dB level with low signal 17 GND Ground 18 19 RESERVED 20 SHUTDOWN1 Shutdown error reportin...

Page 19: ...ls 1 and 2 5 SDIN2 I2S data 2 channels 3 and 4 6 SDIN3 I2S data 3 channels 5 and 6 7 9 Reserved 10 GND Ground 11 SCLK I2S bit clock 12 GND Ground 13 LRCLK I2S left right clock 14 GND Ground 15 Reserved 16 GND Ground Table 2 8 Clock Rates Speed TAS5066 System Control Register 0 x02h Sample Frequency FS LRCLK SCLK 64xFS MCLK Normal speed MCLK 256xFS D7 0 D6 0 32 kHz 44 1 kHz 48 kHz 32 0 kHz 44 1 kHz...

Page 20: ...re the interchannel delays must be pro grammed by I2C to the TAS5066 at startup and after every system reset Table 2 9 Recommended Interchannel Delay Register Values based on EVM designs Register Description Register Address Value hex Inter Channel Delay Channel 1 0x0C 0x01 Inter Channel Delay Channel 2 0x0D 0x49 Inter Channel Delay Channel 3 0x0E 0x91 Inter Channel Delay Channel 4 0x0F 0xD9 Inter...

Page 21: ...his chapter describes the short circuit protection and fault reporting circuitry of the TAS5111 device Topic Page 3 1 Short Circuit Protection and Fault Reporting Circuitry 3 2 3 2 Device Fault Reporting 3 2 Chapter 3 ...

Page 22: ... conditions Please refer to the TAS5111 data manual for a description of these pins Table 3 1 TAS5111 Error Signal Decoding OTW SD Device Condition 0 0 High temperature error and or high current error 0 1 High temperature warning 1 0 Under voltage lockout or high current error 1 1 Normal operation no errors warnings The temperature warning OTW signals at the TAS5066 5111D6EVM board are wired OR to...

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