Texas Instruments TAS5717EVM Evaluation Module TAS5717EVM TAS5717EVM Datenbogen
Produktcode
TAS5717EVM
Installation
www.ti.com
2.1.5
Digital Audio Interface SPDIF
The Digital Audio Interface SPDIF (RCA/OPTO) accepts digital audio data using the I
2
S protocol. See the
TAS5717/19 data sheet for more information.
The RCA connector and the OPTO connector are the two SPDIF interfaces on the MC57xxPSIA board.
The switch S3 toggles between the OPTO and RCA connector to accommodate the signal source. When
the RCA cable or optical cable is connected and the signal source is powered up, verify that the SPDIF
lock indicator (blue LED5) illuminates, confirming that a viable signal is available to the device. Install a
jumper on JP4 across the middle pin and the pin marked SPDIF to connect the digital source to SDIN1.
Install a jumper on JP5 to connect the digital source to SDIN2.
The switch S3 toggles between the OPTO and RCA connector to accommodate the signal source. When
the RCA cable or optical cable is connected and the signal source is powered up, verify that the SPDIF
lock indicator (blue LED5) illuminates, confirming that a viable signal is available to the device. Install a
jumper on JP4 across the middle pin and the pin marked SPDIF to connect the digital source to SDIN1.
Install a jumper on JP5 to connect the digital source to SDIN2.
For detailed information on how the data and clocks are provided to the TAS5717/19, see the schematic
appearing at the end of this document and the DIR9001 device data sheet (
appearing at the end of this document and the DIR9001 device data sheet (
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 TAS5717/19. The DIR9001 still provides clock signals to the ADC in this
process. A 12MHz 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 TAS5717/19. Review the PCM1808 data
sheet (
signal to a digital signal to the TAS5717/19. The DIR9001 still provides clock signals to the ADC in this
process. A 12MHz 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 TAS5717/19. 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 MC57xxPSIA and the TAS5717/19EVM boards by locating pin 1 on each board, indicated by
a small white triangle. The MC57xxPSIA plugs down onto the TAS5717/19EVM board (i.e., the
TAS5717/19EVM board fits underneath the MC57xxPSIA board). Pin 1 on each board must be connected
to each other.
a small white triangle. The MC57xxPSIA plugs down onto the TAS5717/19EVM board (i.e., the
TAS5717/19EVM 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 5V power supply first; then power up the
PVDD power supply. It is recommended initially to set the PVDD level to 10V, then ramp it up to 20V to
verify cable connections.
other loads, power supplies, and the data line, power up the 5V power supply first; then power up the
PVDD power supply. It is recommended initially to set the PVDD level to 10V, then ramp it up to 20V to
verify cable connections.
2.2
Software Installation
Download the TAS57X GUI from the TI Web site. The TI Web site always has the latest release and any
updates to versions of the GUI.
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
shortcut icon is created in Start
→
Program
→
Texas Instruments Inc
→
TAS57x
→
TAS57x GUI. The
GUI launches as shown in
The TAS5717 tab opens when the GUI starts. Select Devices
→
TAS57XX
→
TAS5719 to open the
TAS5719 tab. The TAS5717/19 tab 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 right-clicking. This window also shows Input select,
Mode select, Channel, and Master Volume. All functions are shown in the same order as in the device.
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 right-clicking. This window also shows Input select,
Mode select, Channel, and Master Volume. All functions are shown in the same order as in the device.
The other subwindow, the Properties window, has the properties that a user can update by selecting from
the available options. The properties available depend on the device selected.
the available options. The properties available depend on the device selected.
6
TAS5717/19 10W/15W Digital Audio Power Amplifier with Integrated
SLOU303 – November 2010
Capacitor-Free HP Amplifier
Copyright © 2010, Texas Instruments Incorporated