TDA8950 NXP Semiconductors, TDA8950 Datasheet - Page 21

• Manufacturer Part Number: TDA8950
• Description: The TDA8950 is a high-efficiency Class D audio power amplifier
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDA8950_2
Product data sheet
13.7 Application schematic
The most effective way to avoid pumping effects is to connect the TDA8950 in a mono
full-bridge configuration. In the case of stereo single-ended applications, it is advised to
connect the inputs in anti-phase (see
adapted; for example, by increasing the values of the supply line decoupling capacitors.
Notes on the application schematic:
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Connect a solid ground plane around the switching amplifier to avoid emissions
Place 100 nF capacitors as close as possible to the TDA8950 power supply pins
Connect the heatsink to the ground plane or to VSSPn using a 100 nF capacitor
Use a thermally conductive, electrically non-conductive, Sil-Pad between the
TDA8950 heat spreader and the external heatsink
The heat spreader of the TDA8950 is internally connected to VSSD
Use differential inputs for the most effective system level audio performance with
unbalanced signal sources. In case of hum due to floating inputs, connect the
shielding or source ground to the amplifier ground.
Rev. 02 — 11 June 2009
Section
8.4). The power supply can also be
2
150 W class-D power amplifier
TDA8950
© NXP B.V. 2009. All rights reserved.
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