TDA8920B_2
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 07 November 2005
20 of 34
Philips Semiconductors
TDA8920B
2
×
100 W class-D power amplifier
13.8 Application schematic
Notes for the application schematic:
•
A solid ground plane around the switching amplifier is necessary to prevent emission
•
100 nF capacitors must be placed as close as possible to the power supply pins of the
TDA8920BTH
•
The internal heat spreader of the TDA8920BTH is internally connected to V
SS
•
The external heatsink must be connected to the ground plane
•
Use a thermal conductive electrically non-conductive Sil-Pad between the backside of
the TDA8920BTH and a small external heatsink
•
The differential inputs enable the best 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. Jumpers J1 and J2 are open on
set level and are closed on the stand-alone demo board
•
Minimum total required capacitance per power supply line is 3300
µ
F
