Installation
2.1.6
ADC Interface
In the absence of a digital signal source, the PCM1808 ADC can be used to convert an analog audio
signal to a digital signal to the TAS5707/09. The DIR9001 still provides clock signals to the ADC in this
process. A 12-MHz crystal is installed on the MC57xxPSIA board. The ADC is an additional feature of this
board to provide flexibility in sourcing an audio signal to the TAS5707/09. Review the PCM1808 data
sheet (
) for a detailed description of the ADC on this EVM. Install the jumper on JP4 across the
middle pin and the pin marked ADC to select ADC as the source for SDIN1.
2.1.7
Board Power-Up General Guidelines
Connect the MC-57xx and the TAS5707/09EVM boards by locating pin 1 on each board, indicated by a
small white triangle. The MC-57xx plugs down onto the TAS5707/09EVM board (i.e., the TAS5707/09EVM
board fits underneath the MC57xxPSIA board). Pin 1 on each board must be connected to each other.
Install the EVM software on the PC before powering up the board. After connecting the loudspeakers or
other loads, power supplies, and the data line, power up the 5-V power supply first; then power up the
PVDD power supply. It is recommended initially to set the PVDD level to 10 V, then ramp it up to 20 V to
verify cable connections.
2.2
Software Installation
Download the TAS570x GDE from the TI Web site. The TI Web site always has the latest release and any
updates to versions of the GUI.
Execute the GUI install program, Setup.exe. Once the program is installed, the program group and
shortcut icon is created in Start
→
Program
→
Texas Instruments Inc
→
TAS570X GDE. THE GUI come
ups as shown in
.
Select the appropriate tab, in this case, select TAS5705 tab. It has two subwindows. One shows the
Process Flow window. From the Process Flow window, each of the signal processing function tools can be
selected by clicking on it. The Biquad GUI and the DRC GUI can be opened by using the right button of
the mouse. This window also shows Input select, Mode select, Channel, and Master Volume. All functions
are shown in the order that they are in the device.
The other subwindow, Properties window, has the properties where a user can update by selecting from
the available options. The properties available depends on the device selected. From the main window,
the user must set three properties before connecting to the EVM.
Select the device Enable/Disable auto bank switch function, and set the sample rate. The TAS570x
automatically detects sample rates. This setting is simply to synchronize the GUI and the device.
7
SLOU231C – December 2008 – Revised October 2014
TAS5707EVM (TAS5709EVM) User's Guide
Copyright © 2008–2014, Texas Instruments Incorporated
