Part # LM4846 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM4846 Boomer ® Audio Power Amplifier Series Output Capacitor-less Audio Subsystem with Programmable National 3D


Part Details:

LM4846 July 2006 Output LM4846Output Capacitor-less Audio Subsystem withProgrammable National 3D Capacitor-less General Description Key Specifications The LM4846 is an audio power amplifier capable of deliver- j THD+N at 1kHz, 500mW ing 500mW of continuous average power into a mono 8 into 8 BTL (3.3V) 1.0% (typ) bridged-tied load (BTL) with 1% THD+N, 25mW per channelof continuous average power into stereo 32 single-ended j THD+N at 1kHz, 30mW (SE) loads with 1% THD+N, or an output capacitor-less into 32 SE (3.3V) 1.0% (typ) (OCL) configuration with identical specification as the SE j Single Supply Operation (V ) 2.7 to 5.5V DD configuration, from a 3.3V power supply. j I2C/SPI Single Supply Operation 2.2 to 5.5V The LM4846 features a 32-step digital volume control and Audio eight distinct output modes. The digital volume control, 3Denhancement, and output modes (mono/SE/OCL) are pro- Features grammed through a two-wire I2C or a three-wire SPI com- n I2C/SPI Control Interface patible interface that allows flexibility in routing and mixing Subsystem audio channels. The LM4846 has three input channels: one n I2C/SPI programmable National 3D Audio pair for a two-channel stereo signal and the third for a n I2C/SPI controlled 32 step digital volume control (-54dB single-channel mono input. to +18dB) The LM4846 is designed for cellular phone, PDA, and other n Three independent volume channels (Left, Right, Mono) portable handheld applications. It delivers high quality output n Eight distinct output modes power from a surface-mount package and requires only n micro SMD surface mount packaging seven external components in the OCL mode (two additional n "Click and Pop" suppression circuitry components in SE mode). n Thermal shutdown protection with n Low shutdown current (0.1uA, typ) Applications Programmable n Mobile Phones n PDAs


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LM4846.pdf Datasheet