TDA8920C Datasheet, PDF (22/40 Pages) NXP Semiconductors – 2 X110 W class-D power amplifier

NXP Semiconductors
TDA8920C
2 × 110 W class-D power amplifier
13.9 Application schematics
Notes for the application schematic:
• Connect a solid ground plane to V_SS around the switching amplifier to prevent
emission
• Place 100 nF capacitors as close as possible to the TDA8920C power supply pins
• Internally connect the internal heat spreader of the TDA8920C to V_SS
• Connect the external heatsink to the ground plane
• Use a thermally conductive, electrically non-conductive, Sil-Pad between the backside
of the TDA8920C and a small external heatsink
• 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. Jumpers J1 and J2 are open on
set level and closed on the stand-alone demo board
• Minimum total required capacitance for each power supply line is 3300 µF
TDA8920C_1
Preliminary data sheet
Rev. 01 — 29 September 2008
© NXP B.V. 2008. All rights reserved.
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