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TAS2559
User Manual
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Texas Instruments TAS2559 User Manual

User's Guide
SLOU462A–November 2016–Revised March 2017

TAS2559 Evaluation Module

NOTE: Recipient agrees to not knowingly export or re-export, directly or indirectly, any product or
technical data (as defined by the U.S., EU, and other Export Administration Regulations) including software, or any controlled product restricted by other applicable national regulations, received from Disclosing party under this Agreement, or any direct product of such technology, to any destination to which such export or re-export is restricted or prohibited by U.S. or other applicable laws, without obtaining prior authorization from U.S. Department of Commerce and other competent Government authorities to the extent required by those laws. This provision shall survive termination or expiration of this Agreement. According to our best knowledge of the state and end-use of this product or technology, and in compliance with the export control regulations of dual-use goods in force in the origin and exporting countries, this technology is classified as follows:
• US ECCN: 3E991
• EU ECCN: EAR99 This technology may require export or re-export license for shipping it in compliance with the
applicable regulations of certain countries.
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Contents
1 Description.................................................................................................................... 3
2 Specifications................................................................................................................. 3
3 Software....................................................................................................................... 3
4 Mono Setup................................................................................................................... 4
5 Stereo Setup ................................................................................................................. 7
6 Digital Audio Interfaces ..................................................................................................... 8
7 Hardware Documentation ................................................................................................. 11
List of Figures
1 TAS2559 EVM Mono Setup................................................................................................ 4
2 Setting Default Playback Device........................................................................................... 5
3 3-Pin Jumper ................................................................................................................. 6
4 TAS2559EVM Stereo Setup ............................................................................................... 7
5 USB Audio Selection ........................................................................................................ 9
6 Direct (AP/PSIA) Audio Selection........................................................................................ 10
7 TAS2559EVM USB Block................................................................................................. 11
8 TAS2559EVM Input Muxes and Translators ........................................................................... 12
9 TAS2559EVM Output Muxes and Translators ......................................................................... 13
10 TAS2559EVM Channel 1 Schematic.................................................................................... 14
11 TAS2559EVM Channel 2 (TAS2560) Schematic ...................................................................... 15
12 TAS2559EVM Power Supply ............................................................................................. 16
13 Top Overlay ................................................................................................................. 17
14 Top Solder Mask ........................................................................................................... 17
15 Top Layer ................................................................................................................... 18
16 Copper Layer 2 ............................................................................................................. 18
17 Copper Layer 3 ............................................................................................................. 19
18 Copper Layer 4 ............................................................................................................. 19
19 Copper Layer 5 ............................................................................................................. 20
20 Bottom Layer................................................................................................................ 20
21 Bottom Solder Mask ....................................................................................................... 21
22 Drill Drawing ................................................................................................................ 21
23 Board Dimensions.......................................................................................................... 22
1 EVM Specifications.......................................................................................................... 3
2 Default Jumper Settings .................................................................................................... 5
3 TAS2559EVM Bill of Materials ........................................................................................... 23
Trademarks
PurePath is a trademark of Texas Instruments. Microsoft, Windows are registered trademarks of Microsoft Corporation. All other trademarks are the property of their respective owners.
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TAS2559 Evaluation Module
List of Tables
SLOU462A–November 2016–Revised March 2017
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1 Description

The TAS2559 device is an amplifier with integrated boost converter and programmable digital signal processor. The output amplifier is a Class-D device that can be driven to higher output levels with the on­chip Class-H boost. The on-chip voltage and current sense, together with TI’s Smart Amp algorithm, protect the speaker against overheating and excessive excursion.
The TAS2559 EVM supports evaluation and development with the TAS2559 device through the following interfaces:
• USB interface – TAS2559 control through PurePath™ Console 3 (PPC3) GUI, USB-HID – USB-class audio device, compatible with Microsoft®Windows®7+
• Digital audio AP and PSIA interface through 100-mil headers
• TI Learning Board 2 for speaker characterization
• SPI interface for TAS2559 control
• I2C interface for TAS2559 control

2 Specifications

Amplifier Power Supply (VBAT) 2.9 to 5.5 V
Description
Table 1. EVM Specifications
SOURCE REQUIREMENT
Analog Supply (AVDD) 1.65 to 1.95 V
Digital Supply (DVDD) 1.65 to 1.95 V
EVM Power Supply 5.0 V
IO Power Supply (IOVDD) 1.62 to 3.6 V
Output Power 5.7 W
USB, USB Class-Audio Micro-USB B

3 Software

The TAS2559 EVM requires PurePath Console 3 with the TAS2559 plug-in.
NOTE: The TAS2559 device needs to be configured using this software. It will not function without
this configuration.
Please refer to the Smart Amp Tuning Guide which can be found in the project folder at
MySecureSoftware for detailed information about this software and how to configure the TAS2559 device
for Smart Amp Speaker Protection.
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Mono Setup

4 Mono Setup

1. Install PurePath Console 3 with the TAS2559EVM plug-in.
2. Connect a speaker to J8 on the EVM.
3. Attach a 5.0 V/ 2.5 A power supply to connector J29 (inner = 5V, outer = GND).
4. Remove Jumpers J38, J47, J51, and J40.
5. Connect the EVM to a Windows 7+ PC with a micro-USB cable (J23). It will enumerate as a USB­AudioEVM device (sound card).
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Figure 1. TAS2559 EVM Mono Setup
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6. Verify that the EVM is the default playback device by opening the sound dialog from the Windows
Mono Setup
Control Panel as shown in Figure 2.
Figure 2. Setting Default Playback Device
7. Check if the sampling rate matches the Windows setting by opening the advanced tab in the properties menu. The EVM firmware enumerates as a USB-AudioEVM that supports 48 kHz sampling rate by default. This setting must match the EVM at 2-channel, 16-bit, 48000 Hz (CD Quality).
Table 2. Default Jumper Settings
JUMPER SETTING DESCRIPTION CHANNEL
J2 Insert VBAT 5V J3 Remove DOUT 1 J4 Insert DVDD 1.8V 1 J6 Insert AVDD 1.8V 1 J7 Insert IOVDD Setting from J30 1
J9 Remove SCL / SS 1 J10 Remove SDA / MOSI 1 J11 Insert Address Select1 1 J12 Insert Address Select0 1 J13 Insert SPI Select 1 J14 Remove IRQ 1 J15 Pin 1-2 SDIN = on-board 1 J16 Pin 1-2 WCLK = on-board 1 J17 Pin 1-2 BCLK = on-board 1 J18 Pin 1-2 MCLK = on-board 1 J19 Pin 1-2 SCL = on-board 1 J20 Pin 1-2 SDA = on-board 1 J22 Remove Reset 1
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1 2 3
Mono Setup
Table 2. Default Jumper Settings (continued)
JUMPER SETTING DESCRIPTION CHANNEL
J24 Insert WP = 1, write protect EEPROM J25 Remove DOUT 2
J26 Insert
J27 Insert J30 Pin 1-2 IOVDD Select = 3.3 V 2
J32 Pin 1-2 SDIN = on-board 2 J33 Pin 1-2 WCLK = on-board 2 J34 Pin 1-2 BCLK = on-board 2 J35 Pin 1-2 MCLK = on-board 2 J36 Pin 1-2 SCL = on-board 2 J37 Pin 1-2 SDA = on-board 2 J38 Pin 2-3 ICC =1, inter-chip communication 2 J39 Insert AVDD 1.8V 2 J40 Pin 2-3 ICC =1, inter-chip communication 2 J41 Insert IOVDD 2 J42 Remove Reset 2 J43 Remove SCL = on-board J45 Remove SDA = on-board J46 Remove Address Select0 2 J47 Pin 2-3 ICC =1, inter-chip communication 2 J48 Remove PDM CLK 2 J49 Remove IRQ 2 J51 Pin 2-3 ICC =1, inter-chip communication 2 J52 Pin 1-2 Address Select1 2
P1 = 0, select USB for on-board digital
audio
P0 = 0, select USB for on-board digital
audio
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Figure 3. 3-Pin Jumper
Please refer to Figure 5 for default jumper settings.
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5 Stereo Setup

1. Install PurePath Console 3 with the TAS2559EVM plug-in.
2. Connect speakers to both J44 and J8 on the EVM.
3. Attach a 5.0 V/ 5.0 A power supply to connector J29 (inner = 5V, outer = GND).
4. Connect the EVM to a Windows 7+ PC with a micro-USB cable (J23). It will enumerate as a USB­AudioEVM device (sound card).
Stereo Setup
Figure 4. TAS2559EVM Stereo Setup
5. Proceed with characterization per the PPC3 User’s guide.
6. Change to channel B in the device control pane and set to Right Channel.
7. Play the test tone as shown in Figure 2.
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Digital Audio Interfaces

6 Digital Audio Interfaces

The various digital audio interfaces on the TAS2559EVM can be selected through hardware settings and software settings. Several headers close to the TAS2559 device allow access to the following digital audio signals:
• J3: Data Out (DOUT) from the TAS2559 (For example, current and voltage sense data.)
• J25: Data out (DOUT2) from the TAS2560
• J15: Data In (DIN) to the TAS2559
• J16: Word Clock or Frame Sync (WCLK)
• J17: Bit Clock (BCLK)
• J18: Master Clock (MCLK) (This is optional if TAS2559 PLL is not used.)
• J48: PDM Clock (PDMCLK) – optional input source for TAS2560
• J32: Data in (DIN2) to the TAS2650 – can be used for PDM input if desired
J3 has two pins:
• Digital data (for example, I and V sense data) from the TAS2559 device
• Ground
J15, J16, J17, and J18 have three pins:
• Digital audio signals from the EVM
• Digital audio signals to the TAS2559
• Ground
A jumper inserted in position 1-2 connects the TAS2559 to the digital audio signals from the board (for example, USB or Learning Board 2). Replacing the jumper with a connector from an external source connects the TAS2559 to the external source (for example, AP or PSIA).
The selection between the two on-board digital audio sources (USB or Learning Board 2) is controlled by: (a) Hardware: J26,J27
• J26 = inserted, J27 = inserted; Selects USB
• J26 = inserted, J27 = removed; Selects Learning Board 2
(b) Software: The PPC3 GUI controls the digital audio routing during speaker characterization. This has priority over the hardware settings from point a.
The secondary digital audio interface from the TAS2559 device is directly available through J5.
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TAS2559 Evaluation Module
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6.1 Digital Audio Interface Selection

6.1.1 USB
The TAS2559EVM contains a microcontroller (TAS1020B) that acts as a USB HID and USB-class audio interface. To select USB, insert both J26 and J27 and insert J15, J16, J17, and J18 in the 1-2 position. This is shown in Figure 5.
Digital Audio Interfaces
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Figure 5. USB Audio Selection
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Digital Audio Interfaces
6.1.2 Direct (AP/PSIA)
Remove the jumpers from J15, J16, J17 and J18 for Channel 1 (or J32, J33, J34, and J35 for Channel 2) and connect the external digital audio source (for example AP or PSIA) to pin 2 of each head. Pin 3 provides a convenient ground connection. This is shown in Figure 6.
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TAS2559 Evaluation Module
Figure 6. Direct (AP/PSIA) Audio Selection
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