SGM4888
Dual 2.1W Audio Power Amplifier Plus Stereo Headphone & 3D Enhancement
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℃.
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
Cell Phones, PDAs
Multimedia Monitors
Portable and Desktop Computers
Desktops Audio System
