Mono/Stereo 2W Switch-Mode (Class-D)
Audio Power Amplifiers
PVCC OUT+R OUT-R
AOUTR
INR
FS1
PWM
FS2
OSC
INL
AOUTL
0.3 ✕ VCC
(VCM)
GATE
GATE
DRIVE
DRIVE
PGND
VCC
POWER MANAGEMENT
AND PROTECTION
GND
PGND
SS
CSS
GATE
GATE
DRIVE
DRIVE
Figure 1b. MAX4297 Functional Diagram
Low-Power Shutdown Mode
The MAX4295/MAX4297 have a shutdown mode that
reduces power consumption and extends battery life.
Driving SHDN low disables the H-bridge, turns off the
circuit, and places the MAX4295/MAX4297 in a low-
power shutdown mode. Connect SHDN to VCC for nor-
mal operation.
PVCC OUT+L OUT-L
Applications Information
Component Selection
Gain Setting
External feedback components set the gain of the
MAX4295/MAX4297. Resistors RF and RIN set the gain
of the input amplifier to -(RF/RIN). The amplifier’s nonin-
verting input is connected to the internally generated
0.3 ✕ VCC (VCM) that sets the amplifier’s common-
mode voltage.
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