LM4947 Datasheet

The LM4947 is a Mono Class D and Stereo Audio Subsystem.

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Part NumberLM4947
ManufacturerNational Semiconductor
Overview The LM4947 is an audio subsystem capable of efficiently delivering 500mW (Class D operation) of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N, 37mW (Class AB operation). a 32-step digital volume control and eight distinct output modes. The digital volume control, 3D enhancement, and output modes are programmed through a two-wire I2C compatible interface that allows flexibility in routing and mixing audio channels. The RF suppression circuitry in the LM4947 makes it .
Part NumberLM4947
DescriptionMono Class D and Stereo Audio Sub-System
ManufacturerTexas Instruments
Overview The LM4947 is an audio subsystem capable of efficiently delivering 500mW (Class D operation) of continuous average power into a mono 8Ω bridgedtied load (BTL) with 1% THD+N, 37mW (Class AB operation) . 1
*2 I2C Control Interface
* I2C Programmable Texas Instruments 3D Audio
* I2C Controlled 32 Step Digital Volume Control (-59.5dB to +18dB)
* Three Independent Volume Channels (Left, Right, Mono)
* Eight Distinct Output Modes
* Small, 25
*Bump DSBGA Packaging
* “Click and Pop” Suppression Circuitry
*.