封装管脚图
产品描述
The SGM4992 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 1.1W of continuous average power per channel into an 8Ω Bridge Tied Load (BTL) with less than 1% distortion (THD+N) from a 5V power supply.
The SGM4992 features independent shutdown control for each channel and a low-power consumption shutdown mode, which is achieved by driving both shutdown pins with logic low. Additionally, it features an internal thermal shutdown protection mechanism.
The SGM4992 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.
The SGM4992 contains advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions.
The SGM4992 is unity-gain stable and can be configured by external gain-setting resistors.
The SGM4992 is available in Green TDFN-4×3-14L package. It operates over an ambient temperature range of -40°C to +85°C.
产品特性
1.1W to 8Ω BTL Load from 5V Supply at THD+N = 1% Typical (per Channel)
Excellent PSRR: Direct Connection to the Battery
Unity Gain Stable
2.5V to 5.5V Operation
Shutdown Current: 0.1μA (TYP)
Shutdown Pin is Compatible with 1.8V Logic
Improved Pop & Click Circuitry
No Output Coupling Capacitors
External Gain Configuration Capability
-40°C to + 85°C Operating Temperature Range
Available in Green TDFN-4×3-14L Package