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Summary of Contents for Texas Instruments TAS5026REF
- Page 1 TAS5026REF Reference Design for the TAS5026 Digital Audio PWM Processor User’s Guide April 2003 Digital Audio/Application SLEU035...
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Page 2: Important Notice
Texas 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 orders and should verify that such information is current and complete. -
Page 3: Evm Important Notice
Texas 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 EVALUATION PURPOSES ONLY 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 required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods. - Page 4 EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Copyright 2003, Texas Instruments Incorporated Mailing Address: Texas Instruments Post Office Box 655303...
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Page 5: Read This First
About This Manual This manual describes the TAS5026REF reference design from Texas Instru- ments. How to Use This Manual This document contains the following chapters: Chapter 1 – Introduction Chapter 2 – System Interfaces Chapter 3 – Schematic, Parts List, PCB Specification, and PCB Layout Information About Cautions and Warnings This book may contain cautions and warnings. - Page 6 Related Documentation From Texas Instruments The following is a list of data manual that have detailed descriptions of the integrated circuits used in the design of the TAS5026REF evaluation module. The data manuals can be obtained at the URL http://www.ti.com.
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Page 7: Table Of Contents
Digital Audio Interface (J160) Control Interface (J100) PWM Interface (J140) Schematic, Parts List, PCB Specification, and PCB Layout 1–1 TDAA System With TAS5026REF and TAS5110D6REF Reference Designs 1–2 Physical Structure for the TAS5026REF (Rough Outline) 2–1 Pin Numbers at PWM Interface (J140) 2–1... -
Page 9: Introduction
The TAS5026REF reference design demonstrates the integrated circuit TAS5026 from Texas Instruments (TI). The TAS5026 is a 24-bit multichannel digital pulse width modulator based on Equibit technology. The TAS5026 is designed to drive up to six digital power devices to provide six channels of digital audio amplification. -
Page 10: Tas5026Ref Features
TV sets. Together with the TAS5110D6REF or the TAS5112D6REF module, the TAS5026REF module is a complete true digital audio amplifier system, which includes digital volume control, headphone amplifier, and a subwoofer output. Figure 1–1. TDAA System With TAS5026REF and TAS5110D6REF Reference Designs... -
Page 11: Pcb Key Map
1.2 PCB Key Map The physical structure for the TAS5026REF is illustrated in Figure 1–2. Figure 1–2. Physical Structure for the TAS5026REF (Rough Outline) Head– Phone Headphone Amplifier Section (J320) 1.3 Jumper Settings Together with the TAS5100/TAS5110/TAS5182 PWM output stages from Texas Instruments, the TAS5026REF module can be configured in autorecovery mode (closed loop). -
Page 13: System Interfaces
This chapter describes the TAS5026REF system interfaces. Topic Digital Audio Interface (J160) Control Interface (J100) ........ -
Page 14: Digital Audio Interface (J160)
2.1 Digital Audio Interface (J160) The digital audio interface contains digital audio signal data (I2S), clocks, etc. See the TAS5026 data manual, SLES041, for signal timing and details not ex- plained in this document. Table 2–1. Digital Audio Interface Pin Connections Pin No. -
Page 15: Control Interface (J100)
2.2 Control Interface (J100) The control interface connects the TAS5026 board to the microcontroller section. Table 2–3. Control Interface Pin Connections Pin No. Net Name V-HBRIDGE-CONTROL RESET SOFT–RESET MUTE POWER–DOWN Not used Not used Not used I2C–ADDRESS–SELECT TAS5026 I DOUBLE–SPEED CLIP DEM-SEL2 Description... - Page 16 Table 2–3. Control Interface Pin Connections (Continued) Pin No. Net Name DEM-SEL1 SD–E1 SD–E2 ERROR0 ERROR1 HEADPHONE–DISABLE Not used Not used Not used Not used Description De-emphasis filter select bit 1 Shutdown error reporting group 1. The TAS51XX digital output stages (channel 1, 2, and 5) assert this signal low when an internal error occurs.
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Page 17: Pwm Interface (J140)
2.3 PWM Interface (J140) The PWM interface connects the TAS5026REF board to the output stage module. Figure 2–1. Pin Numbers at PWM Interface (J140) Table 2–4. J140 Pin Description Pin No. Net Name V-HBRIDGE-CONTROL PWM–AP–1 PWM–AM–1 VALID–1 PWM–BM–1 PWM–BP–1 PWM–AP–2 PWM–AM–2... - Page 18 Error signal ERR0 from TAS5110 Error signal ERR1 from TAS5110 System reset (bidirectional) For future use For future use For future use For future use 3.3-V supply voltage for the modulator module (e.g., the TAS5026REF) Ground 5-V supply voltage 5-V supply voltage...
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Page 19: Schematic, Parts List, Pcb Specification, And Pcb Layout
Chapter 3 Schematic, Parts List, PCB Specification, and PCB Layout The chapter contains the schematic, parts list, PCB specification, and PCB layout for the TAS5026REF. -
Page 20: Input & Output Section
Input & Output Section DIGITAL AUDIO GROUP DIGITAL AUDIO GROUP ALL RIGHTS RESERVED - PATENTS PENDING ALL RIGHTS RESERVED - PATENTS PENDING TEXAS INSTRUMENTS INCORPORATED TEXAS INSTRUMENTS INCORPORATED TAS5026REF... - Page 21 TAS5026 Section DIGITAL AUDIO GROUP DIGITAL AUDIO GROUP ALL RIGHTS RESERVED - PATENTS PENDING ALL RIGHTS RESERVED - PATENTS PENDING TEXAS INSTRUMENTS INCORPORATED TEXAS INSTRUMENTS INCORPORATED TAS5026REF...
- Page 22 Headphone Amplifier Section DIGITAL AUDIO GROUP DIGITAL AUDIO GROUP ALL RIGHTS RESERVED - PATENTS PENDING ALL RIGHTS RESERVED - PATENTS PENDING TEXAS INSTRUMENTS INCORPORATED TEXAS INSTRUMENTS INCORPORATED TAS5026REF...
- Page 23 DCT 0603 - 00 5% PA 10k0 BC Components DCT 0603 - 00 5% PA 10k0 BC Components DCT 0603 - 00 5% PA 10k0 BC Components DCT 0603 - 00 5% PA 10k0 Texas Instruments, Digital Audio & Video...
- Page 24 DCT 0603 -00 5% PA 8k20 DCT 0603 - 00 5% PA 1k00 DCT 0603 - 00 5% PA 1k00 DCT 0603 - 00 5% PA 1k00 DCT 0603 - 00 5% PA 1k00 Texas Instruments, Digital Audio & Video...
- Page 25 TAS5026REF Parts List Housing Manufacturer Molex Molex MSOP8 Texas Instruments TQFP64 Texas Instruments SOT23-5 Texas Instruments TSSOP14 Texas Instruments TSSOP14 Texas Instruments MSOP8 Texas Instruments Manufacturer Part Number 15-29-1024 15-29-1024 SN74LVC2G08DCTR TAS5026APFB SN74LVC1G14DBVR SN74LVC08APWR SN74LVC126APWR TPA112DGN Texas Instruments, Digital Audio & Video...
- Page 26 TAS5026REF PCB SPECIFICATION BOARD IDENTIFICATION: BOARD TYPE: LAMINATE TYPE: LAMINATE THICKNESS: COPPER THICKNESS: COPPER PLATING OF HOLES: MINIMUM HOLE DIAMETER SILKSCREEN COMPONENT SIDE: SILKSCREEN SOLDER SIDE: SOLDER MASK COMPONENT SIDE: SOLDER MASK SOLDER SIDE: PROTECTIVE COATING: ELECTRICAL TEST: MANUFACTURED TO:...
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