MAX4295 查看數據表（PDF） - Maxim Integrated

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MAX4295

Mono/Stereo 2W Switch-Mode (Class-D) Audio Power Amplifiers

Maxim Integrated 

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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