帕智電子(上海)有限公司

                400 0800 882

                產品中心

                當前位置:首頁 > 產品中心 > 圣邦微 > 音頻,視頻驅動器 > 耳機驅動器 > SGM4809

                產品中心

                SGM4809

                Dual 158mW Headphone Amplifier with Active Low Shutdown Mode
                 
                Dual 158mW Headphone Amplifier with Active Low Shutdown Mode
                GENERAL DESCRIPTION

                The SGM4809 is a dual audio power amplifier capable of delivering 158mW per channel of continuous average power with typically 0.1% distortion (THD+N) when it drives a 16Ω speaker from a 5.0V power supply. 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.

                SGM4809 features an externally controlled, active-low, micro-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

                SGM4809 does not require bootstrap capacitors or snubber networks. It is optimally suited for low power portable systems.

                For maximum flexibility, the SGM4809 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on time (with the bypass capacitor).

                The SGM4809 is available in a Green MSOP-8 package. It operates over an ambient temperature range of -40 to +85.

                PIN CONFIGURATIONS

                14159455389567.png

                FEATURES
                • Active-Low Shutdown Mode

                • 158mW into 16Ω Load from 5V Power Supply at THD+N = 0.1% (Typical, per Channel)

                • 87mW into 32Ω Load from 5V Power Supply at THD+N = 0.1% (Typical, per Channel)

                • Unity Gain Stable

                • Shutdown Current: 0.6μA (TYP)

                • 2.5V to 5.5V Operation

                • Shutdown Pin is Compatible with 1.8V Logic

                • Pop/Click Reduction Circuitry

                • -40 to +85 Operating Temperature Range

                • Available in a Green MSOP-8 Package

                APPLICATIONS

                Portable Systems
                Headphone Amplifier
                Microphone Preamplifier
                Notebook Computers
                Mobile Phone
                PDAs
                GPS

                ORDERING INFORMATION
                Part NumberStatusPackagePinsPb-FreeTemp Range
                SGM4809YMS/TRProductionMSOP-88Y-40℃ to +85℃

                网上赚钱最可靠的10种方法