Integrated Audio Amplifier System

The LM4856 is an Audio Power Amplifier system capable of delivering 1.1W (typ) of continuous average power into a mono 8 bridged-tied load (BTL) with 1% THD+N and 60mW (typ) per channel of continuous average power into stereo 32 single-ended (SE) loads with 0.5% THD+N, using a 5V power supply.
The LM4856 features a 32 step digital Volume Control and eight distinct output modes. The digital Volume Control and output modes are programmed through a two-wire I2C compatible control Interface that allows flexibility in routing and mixing Audio channels.
The LM4856 is designed for cellular phone, PDA, and other portable handheld applications. It delivers high quality output power from a surface-mount package and requires only eight external components.
The industry leading micro SMD package only utilizes 2mm x 2.3mm of PCB space, making the LM4856 the most space efficient Audio sub system available today.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM48560TLX/NOPB Texas Instruments High Voltage Class H Ceramic Speaker Driver with Automatic Level Control 16-DSBGA -40 to 85
LM48560TL/NOPB Texas Instruments High Voltage Class H Ceramic Speaker Driver with Automatic Level Control 16-DSBGA -40 to 85
LM4856 's PackagesLM4856 's pdf datasheet
LM4856LQ LLP
LM4856LQX LLP
LM4856ITL
LM4856ITLX




LM4856 Pinout, Pinouts
LM4856 pinout,Pin out
This is one package pinout of LM4856,If you need more pinouts please download LM4856's pdf datasheet.

LM4856 Application circuits
LM4856 circuits
This is one application circuit of LM4856,If you need more circuits,please download LM4856's pdf datasheet.


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