The LM4832 is a monolithic integrated circuit that provides volume and tone (bass and treble) controls as well as a stereo audio power amplifier capable of producing 250 mW (typ) into 8Ω or 90 mW (typ) into 32Ω with less than 1.0% THD. In addition, a two input microphone preamp stage, with volume control, capable of driving a 1 kΩ load is implemented on chip.
●The LM4832 also features Texas Instruments" 3D Sound circuitry which can be externally adjusted via a simple RC network. For maximum system flexibility, the LM4832 has an externally controlled, low-power consumption shutdown mode, and an independent mute for power and microphone amplifiers .
●Boomer audio integrated circuits were designed specifically to provide high quality audio while requiring few external components. Since the LM4832 incorporates tone and volume controls, a stereo audio power amplifier and a microphone preamp stage, it is optimally suited to multimedia monitors and desktop computer applications.
● Independent Left and Right Output Volume Controls
● Treble and Bass Control
● Texas Instruments 3D Sound
● I2C Compatible Interface
● Two Microphone Inputs with Selector
● Software Controlled Shutdown Function
●## Key Specifications
● Output Power at 10% into 8Ω, 350mW (Typ)
● Output Power at 10% into 32Ω, 100mW (Typ)
● THD+N at 75mW into 32Ω at 1kHz, 0.5% (Max)
● Microphone Input Referred Noise, 7μV (Typ)
● Supply Current, 13mA (Typ)
● Shutdown Current, 4μA (Typ)
●All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.