AN10436 PHILIPS [NXP Semiconductors], AN10436 Datasheet - Page 34

• Manufacturer Part Number: AN10436
• Description: TDA8932B/33(B) Class-D audio amplifier
• Manufacturer: PHILIPS [NXP Semiconductors]

NXP Semiconductors
AN10436_1
Application note
Some important notes for a proper layout are summarized below:
Fig 29. Proposed floor plan of the components
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FILTER CAPACITOR
FILTER INDUCTOR
Input / output connectors at one side of the PCB (solid and "clean" star GND
connection).
Supply buffer capacitor (C1) close to the IC.
Filter inductor (L2, L3) close to the IC.
Filter capacitor (C14, C23) close to the output connector, together with the SE
capacitor (C15, C24).
Place the High Frequency (HF) supply decoupling capacitor close to the IC (see
Figure
Place the HF decoupling capacitor STAB1/2 voltage close to the IC (see
Place the Bootstrap capacitor of the high-side driver close to the IC (see
Place the RC output snubber network close to the IC (see
Place the HF decoupling capacitor DREF voltage close to the IC (see
SE CAPACITOR
30).
Rev. 01 — 12 December 2007
Large signal supply and output
L2
C15
C14
Audio outputs
C23
I/O CONNECTORS AT ONE SIDE
L3
BUFFER CAPACITOR
Supply
C24
C1
TDA8932B/33(B) Class-D audio amplifier
Audio inputs
U1
Small signal input
Figure
33).
AN10436
© NXP B.V. 2007. All rights reserved.
SOLID “CLEAN” GND
Figure
Figure
Figure
010aaa056
33).
34 of 55
31).
32).