器件名称: SGM4890
功能描述: 1.1 Watt Audio Power Amplifier
文件大小: 324.92KB 共9页
简 介:SGM4890
GENERAL DESCRIPTION
The SGM4890 is a 1.1-W, fully integrated, audio power amplifier. It is designed to maximize audio performance in portable applications such as mobile phone. The portable application requires audio power amplifier has minimum of external components and can operate from a single 2.5V to 5.5V power supply. SGM4890 is capable of delivering 1.1W of continuous output power with less than 1% distortion（THD + N）when it drives an 8Ω speaker from a 5.0V power supply. The SGM4890 features a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with a logic low. Additionally, the SGM4890 features an internal thermal shutdown protection mechanism. The SGM4890 does not require capacitors or bootstrap capacitors, ideally suited for mobile phone and applications where minimal power primary requirement. output coupling and therefore is other low voltage consumption is a
1.1 Watt Audio Power Amplifier
FEATURES
Ideal for Notebook Computers, PDAs, and Other Small Portable Audio Devices 1.1W to 8- BTL Load from 5V Supply at THD =1% (Typical) Excellent PSRR: Direct Connection to the Battery Fast Turn On Time Unity Gain Stable 2.5V to 5.5V Operation Shutdown Current: 0.01A Typical Shutdown Pin is Compatible with 1.8V Logic –40℃ to +85℃ Operating Temperature Range Small Packaging
PIN CONFIGURATIONS (Top View)
A B C
-IN
VO1
+IN
For maximum flexibility, the SGM4890 provides an externally controlled gain (with resistors), as well……
