MAX4295 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX4295 Datasheet PDF : 18 Pages
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Mono/Stereo 2W Switch-Mode (Class-D)
Audio Power Amplifiers
a 10µF capacitor in parallel with a 1µF capacitor to
GND. Ceramic capacitors are recommended due to
their low ESR.
Good PC board layout techniques optimize perfor-
mance by decreasing the amount of stray capacitance
at the amplifier’s inputs and outputs. To decrease stray
capacitance, minimize trace lengths by placing exter-
nal components as close as possible to the amplifier.
Surface-mount components are recommended.
The MAX4295/MAX4297 require two separate ground
planes to prevent switching noise from the MOSFETs in
the H-bridge from coupling into the rest of the circuit.
PGND, the power ground, is utilized by the H-bridge
and any external output components, while GND is
used by the rest of the circuit. Connect the PGND and
GND planes at only one point, as close to the power
supply as possible. Any external components associat-
ed with the output of the MAX4295/MAX4297 must be
connected to the PGND plane where applicable. Use
the Typical Operating Circuit diagram as a reference.
Refer to the evaluation kit manual for suggested com-
ponent values, component suppliers, and layout.
Chip Information
TRANSISTOR COUNT: MAX4295: 846
MAX4297: 1191
PROCESS: BiCMOS
TOP VIEW
GND 1
PVCC 2
OUT+ 3
PGND 4
VCC 5
VCM 6
IN 7
AOUT 8
MAX4295
16 SS
15 PVCC
14 OUT-
13 PGND
12 GND
11 FS2
10 FS1
9 SHDN
SO/QSOP
Pin Configurations
AOUTL 1
INL 2
VCC 3
PVCC 4
OUT+ L 5
PGND 6
PGND 7
OUT+ R 8
PVCC 9
GND 10
INR 11
AOUTR 12
MAX4297
24 SS
23 VCC
22 SHDN
21 PVCC
20 OUT- L
19 PGND
18 PGND
17 OUT-R
16 PVCC
15 FS2
14 FS1
13 VCM
SO/SSOP
16 ______________________________________________________________________________________
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