AAT5101 Advanced Analogic Technologies, Inc., AAT5101 Datasheet - Page 13

• Manufacturer Part Number: AAT5101
• Description: 2.5w Mono Filter-free Class D Audio Power Amplifier
• Manufacturer: Advanced Analogic Technologies, Inc.

PCB Guidance
The suggested PCB layout for the AAT5101 is shown in
Figure 9. All components are placed as close as possible
to the AAT5101's leads to achieve better performance.
The following guidelines should be used to help ensure a
proper layout.
1. The decoupling capacitor (C4) should connect to the
2. The input resistor (R1, R2) should be placed very
SwitchReg
Evaluation Board Information
Component Selection
5101.2009.04.1.3
Item
VDD pin and PVDD pin as closely as possible.
close to the AAT5101.
1
2
3
4
Part Description
SMD Resistor 150KΩ
Ceramic Capacitor 0.1μF, 50V, X7R
Ceramic Capacitor 4.7μF, 6.3V, X5R
Not populated
TM
GND
In+
In-
Figure 8: AAT5101 Evaluation Board Schematic.
Audio In
VDD
GND
GND
0.1μF
0.1μF
C1
C2
2.5W Mono Filter-Free Class D Audio Power Amplifier
w w w . a n a l o g i c t e c h . c o m
C3
150kΩ
150kΩ
R1
R2
Shutdown
R1, R2
C1, C2
J1
Ref
1
2
3
C4
C3
C4
4.7μF
U1
AAT5101
VDD
GND
IN+
IN-
PVDD
3. The input routes should be similar and the distance
4. The output traces should be short, wide, and not
WLCSP Package Light Sensitivity
The electrical performance of the WLCSP package can be
adversely affected by exposing the device to certain light
sources, such as direct sunlight or a halogen lamp whose
wavelengths are red and infra-reds. However, fluores-
cent lighting has very little effect on the electrical perfor-
mance of the WLCSP package.
SD
PCB Footprint
between the two routes should be small.
pass beneath the IC in the other layers.
VO+
VDD
VO -
0603
0603
0603
Audio Out
J4
1
2
Manufacturer
Vishay-Draloric
PRODUCT DATASHEET
Out-
Out+
TDK
TDK
AAT5101
C1608X7R1H104KT
C1608X5R0J475MT
Part Number
CRCW0603
13