Quick Setup Guide
CAUTION
Failure to observe ESD handling procedures can result in damage to EVM
components.
2.2
Unpacking the EVM
Upon opening the TAS5612L-TAS5614LDDVEVM package, check to make sure that the following items
are included:
• 1 pc. TAS5612L-TAS5614LDDVEVM using 1 TAS5538DGG and 1 TAS5612LDDV or TAS5614LDDV.
• 1 pc. TI Input-USB Board 3 for interfacing TAS5612L-TAS5614LDDVEVM to SPDIF/analog sources
and PC for control.
• 1 pc. Signal and Control Interface IDC cable for connection to an I
2
S front-end like the Input-USB
Board 3.
• 1 pc. Cable for connecting Input-USB Board 3 to a USB port on a PC for TAS5538 control by software.
• If any of these items are missing, contact the nearest Texas Instruments Product Information Center to
inquire about a replacement.
Connect the Input-USB Board 3 to the TAS5612L/14LDDVEVM using the delivered IDC cable.
2.3
Power Supply Setup
2 power supplies are needed to power the TAS5612L-TAS5614LDDVEVM. Voltage and current
requirements for the PVDD power supply are shown in the table below. Connect this power supply to the
EVM using banana cables or wires secured to the power supply binding posts PVDD and GND. A second
power supply, 12Vdc at 500mA, is required to power Input-USB Board 3. Connect the 12V power supply
to the Input-USB Board 3 using banana cables or wires secured to the power supply binding posts +12V
and GND.
Table 2. Recommended PVDD Power Supply Voltages
Description
TAS5614L Power Supply Voltage
TAS5612L Power Supply Voltage
Voltage Range
12 - 38 Vdc
12 - 34 Vdc
Current Requirements
16 A
14 A
Binding Post
PVDD
PVDD
CAUTION
NOTE: Applying voltages above specifications in
can cause permanent
damage to the hardware. Verify polarity of power supply connections before
powering the EVM.
NOTE:
The length of the power supply cable must be minimized. Increasing length of PSU cable is
likely to increase distortion for the amplifier at high output levels and low frequencies.
2.4
Speaker Connection
CAUTION
Both positive and negative speaker outputs are floating and cannot be
connected to ground (e.g. through an oscilloscope). To measure a BTL output
connect an oscilloscope probe to each side of the output, connect both ground
clips to EVM ground and use the oscilloscope math functions to show the
difference between the 2 probe signals.
SLAU375 – May 2012
Copyright © 2012, Texas Instruments Incorporated
TAS5612L-TAS5614LDDVEVM
7
TI [ TEXAS INSTRUMENTS ]
