SGM4888数据手册SGMICRO中文资料规格书

描述 Description

The SGM4888 is a dual bridge-connected audio power amplifier which operates from 2.8V to 5.5V supply voltage. It can deliver 2.5W into a 3Ω load or 2.1W into a 4Ω load from 5V supply at THD+N = 1%.
The SGM4888 integrates dual bridge speaker amplifier and stereo headphone amplifier on one chip to simplify design.
The SGM4888 has pop/click suppression circuitry, low power consumption shutdown mode and thermal shutdown protection.
The SGM4888 is available in a Green TQFN-4×4-24L package. It operates over an ambient temperature range of -40℃ to +85℃.

特性 Features

• Supply Voltage Range: 2.8V to 5.5V

• 2.5W into 3Ω Load from 5V Power Supply at THD+N = 1% (Typical, per Channel)

• 2.1W into 4Ω Load from 5V Power Supply at THD+N = 1% (Typical, per Channel)

• 1.3W into 8Ω Load from 5V Power Supply at THD+N = 1% (Typical, per Channel)

• Shutdown Current: 0.02μA (TYP)

• PSRR: 80dB (TYP)at 217Hz

• 3D Enhancement

• Stereo Headphone Amplifier Mode

• Pop/Click Suppression Circuitry

• Thermal Shutdown Protection

• -40℃ to +85℃ Operating Temperature Range

• Available in a Green TQFN-4×4-24L Package

应用 Application

Cell Phones, PDAs
Multimedia Monitors
Portable and Desktop Computers
Desktops Audio System