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TAS5624DDV Datasheet(PDF) 7 Page - Texas Instruments |
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TAS5624DDV Datasheet(HTML) 7 Page - Texas Instruments |
7 / 33 page www.ti.com 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 TAS5622-TAS5624DDVEVM package, check to make sure that the following items are included: • 1 pc. TAS5622-TAS5624DDVEVM using 1 TAS5538DGG and 1 TAS5622DDV or TAS5624DDV. • 1 pc. TI Input-USB Board 3 for interfacing TAS5622-TAS5624DDVEVM to SPDIF/analog sources and PC for control. • 1 pc. Signal and Control Interface IDC cable for connection to an I 2S 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 TAS5622/14LDDVEVM using the delivered IDC cable. 2.3 Power Supply Setup 2 power supplies are needed to power the TAS5622-TAS5624DDVEVM. 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 Voltage Range Current Requirements Binding Post TAS5624 Power Supply Voltage 12 - 38 Vdc 20 A PVDD TAS5622 Power Supply Voltage 12 - 34 Vdc 18 A PVDD CAUTION NOTE: Applying voltages above specifications in Table 2 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. 7 SLAU376 – May 2012 TAS5622-TAS5624DDVEVM Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated |
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