1.28W Stereo Audio Power Amplifier
The SGM4866 is a stereo audio power amplifier that is
designed for demanding applications in mobile phones
and other portable communication device applications. It
is capable of delivering 1.28W of continuous average
power per channel into an 8Ω bridge tied load (BTL) with
typically 1% distortion (THD+N) from a 5V power supply.
The SGM4866 features an externally controlled, low
power consumption shutdown mode and thermal
shutdown protection. It also utilizes circuitry to reduce
“pop/click” during device turn-on.
The SGM4866 is unity-gain stable and can be configured
by external gain-setting resistors.
The SGM4866 is available in Green TQFN-3×3-16L
package. It operates over an ambient temperature range
of -40℃ to +85℃.
1.28W into 8Ω BTL Load from 5V Supply at
THD+N = 1% (Typical, per Channel)
Excellent PSRR: Direct Connection to Battery
Unity Gain Stable
2.6V to 5.5V Operation
Shutdown Current: 0.01μA (TYP)
Improved Pop/Click Circuitry
No Output Coupling Capacitors
External Gain Configuration Capability
Thermal Shutdown Protection Circuitry
-40℃ to +85℃ Operating Temperature Range
Available in Green TQFN-3×3-16L Package
Cell Phones, PDA, MP4, PMP
Portable and Desktop Computers
Desktops Audio System
SG Micro Corp
REV. A. 1