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TPA3220 Datasheet(PDF) 31 Page - Texas Instruments

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Part # TPA3220
Description  60-W Stereo, 100-W Peak HD Analog-Input, Pad-Down Class-D Amplifier
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPA3220 Datasheet(HTML) 31 Page - Texas Instruments

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TPA3220
www.ti.com
SLASEN3 – JANUARY 2018
Product Folder Links: TPA3220
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Copyright © 2018, Texas Instruments Incorporated
12 Layout
12.1 Layout Guidelines
Use an unbroken ground plane to have good low impedance and inductance return path to the power supply
for power and audio signals.
Maintain a contiguous ground plane from the ground pins to the PCB area surrounding the device for as
many of the ground pins as possible, since the ground pins are the best conductors of heat in the package.
PCB layout, audio performance and EMI are linked closely together.
Routing the audio input should be kept short and together with the accompanied audio source ground.
The small bypass capacitors on the PVDD lines should be placed as close the PVDD pins as possible.
A local ground area underneath the device is important to keep solid to minimize ground bounce.
Orient the passive component so that the narrow end of the passive component is facing the TPA3220
device, unless the area between two pads of a passive component is large enough to allow copper to flow in
between the two pads.
Avoid placing other heat producing components or structures near the TPA3220 device.
Avoid cutting off the flow of heat from the TPA3220 device to the surrounding ground areas with traces or via
strings, especially on output side of device.


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