Texas Instruments TAS5780M Operation & User’s Manual
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Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module PurePath is a trademark of Texas Instruments. Windows is a registered trademark of Microsoft Corporation. All other trademarks are the property of their respective owners. User's Guide SLAU694–December 2016 TAS5780M Evaluation Module This user’s guide describes the operation of the TAS57780M Evaluation Modules (EVM). The ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 1 Hardware Overview The TAS5780MEVM showcases the latest TI digital input Class-D closed loop amplifier. The TAS5780M is an I2S or TDM input class D amplifier with 96-kHz processing. The EVM is used in conjunction with the PurePath Console Motherboard (PPCMB). The PVDD supply is provided via the T ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 1.3 Detailed Operations Upon power-on, the PPCMB uses USB audio input (default). The I2S signals LRCLK, SCLK, SDIN and MCLK come from the TAS1020B. foobar2000 or similar non-processing media source can be used to stream audio. The TAS1020B enumerates as the following device on a Microsoft® Window ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 2 Hardware Setup Step 1: Connect the PPCMB to the TAS5780MEVM. Step 2: Connect speakers to TAS5780MEVM. Step 3: Connect a PSU to the TAS5780MEVM and turn on the power. 5-V and 3.3-V LEDs (Yellow) are illuminated. The USB Lock LED (Blue) is also illuminated. Step 4: Plug in a USB cable from the PC to ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3 Software Overview 3.1 PurePath Console 3 (PPC3) PurePath™Console 3 (PPC3) is a software platform for Texas Instruments’ audio devices. Many of these audio devices can be configured, tuned and validated. This platform has the ability to support a number of TI’s audio devices with features t ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module When the window in Figure 5 is displayed, click on “sign in” to see TAS5780 EVM application. Click on TAS5780M box to download TAS5780M EVM App. Installation window will pop up, then click “Install”. Figure 5. PPC3 Window ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module After installation, TAS5780 EVM box will appear in “Installed EVM Apps” section, see Figure 6. Click on TAS5780 box to launch TAS5780 App. Figure 6. Installed EVM Apps ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.2 TAS5780M Home Page When the TAS5780M EVM App is launched, the TAS5780M Home Page is shown, see Figure 7. It displays features that are available for that EVM. When a feature is selected, then the respective page is loaded. If the EVM is powered on and the USB is connected to the PC, the Home P ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.3 System Checks The System Checks Page (See Figure 8) is used to determine whether the EVM can be configured correctly and receive audio stream from PC via USB. These checks will complete in a few minutes if no problem is detected. It is recommended to run the system checks before proceeding to ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.4 Direct I2C The I/O tab in the Direct I2C has two sub sections. The Input section has the provision to enter the read or write commands scripts. Clicking the Execute button will execute the commands written in the Input section. The status of the execution is displayed in the Output section as ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module The Log tab in the Direct I2C displays the I2C command history, if the record option is enabled. The log tab has a search option to search for a particular command. The search key can be found at the top left of the window with the search icon. ‘Save to a file’ can be used to save the log as ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.5 Audio I/O This tool selects the desired audio input to the EVM. USB, coax, analog ,optical and PSIA (external I2S) are supported by the motherboard. USB audio source is selected as default. Figure 11. Audio I/O Page ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.6 Register Map The Register Map Page shows the current I2C register values (hexadecimal) in the TAS5780M and it can be also used to change the register values. Manually changing register values is accomplished by double- clicking in the desired bit to change. Clicking on Read All Registers allo ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.7 End System Integration The End System Integration Page offers a powerful tool to generate a configuration file to use with processors and a method to debug the device in the end system. Three options are available: (1) Dump Current State into a Header file, (2) In-System Debugging and (3) In- ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.7.1 Dump Current State into a Header File This tool is used to generate a header or configuration file for the evaluated device according to the features evaluated and configured with PPC3. A few settings are available for file generation, including the format, end system I2C address, burst len ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.7.2 In-System Debugging This tool helps debug the device which is already integrated in the end-system. This is possible by connecting the I2C signals of the end-system device to the SCL, SDA, and GND test points of PPCMB. Only Register Map and Direct I2C will be available in this mode. Leave t ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.7.3 In-System Tuning Even if the device is integrated in the end application, it is still possible to make fine adjustments with the help of In-System Tuning. Like the In-System Debugging above, this is done by connecting I2C signals from PPCMB to the TAS5780M device in the end-system. Figure 1 ...
L2L Gain L2R Gain R2L Gain R2R Gain + + Audio left in Audio left out Audio right out Software Overview www.ti.com 18 SLAU694–December 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module 3.8 Tuning and Audio Processing 3.8.1 Input Mixer The input mixer can be used to mix the left and right channel input signals as shown in Figure 17. The input mixer has four coefficients, which con ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module Table 1. Coefficient Values in Basic Tab Coefficient Value L2L Gain 1 L2L Gain 0 R2L Gain 0 R2R Gain 1 Switch to the Advanced tab (see Figure 19) if all the four coefficients need to be adjusted. Note that the four parameters need to be specified in decibels (dB). Like the Invert Phase boxes in t ...
Copyright © 2016, Texas Instruments Incorporated TAS5780M Evaluation Module Figure 20 shows the Sample Rate Configuration Tab. Choose your preferred audio source in the Audio I/O page and then select a proper sampling rate of audio in the dropdown box. Either Bank 1 or Bank 2 will be active after the sampling rate is entered. The Sync Bank 1 and 2 box is used to make sur ...
