Audio Subsystem With Stereo Headphone & Mono Speaker Amplifiers

The LM4930 is an integrated Audio subsystem that supports voice and digital Audio functions. The LM4930 includes a high quality I2S input stereo DAC a voice band codec, a stereo Headphone Amplifier and a high-power mono speaker Amplifier It is primarily designed for demanding applications in mobile phones and other portable devices.
The LM4930 features an I2S serial Interface for full range Audio a 16-bit PCM bi-directional serial Interface for the voice band codec and an two-wire Interface for control. The full range music path features an SNR of 86dB with a 16-bit 48kHz input. The stereo DAC CAN also be used while the voice codec is in use. The Headphone Amplifier delivers 25mWRMS to a 32 single-ended stereo load with less than 0.5% distortion (THD+N) when AVDD = 3V. The mono speaker Amplifier delivers up to 330mW into an 8 load with less than 1% distortion when AVDD = 3V.
The LM4930 employs advanced techniques to reduce power consumption, to reduce controller overhead and to eliminate click and pop. Boomer Audio Power Amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. It is, therefore, ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM4930LQ/NOPB Texas Instruments Audio Subsystem with Stereo Headphone & Mono Speaker Amplifiers 44-WQFN -30 to 85
LM4930ITLX/NOPB Texas Instruments Audio Subsystem with Stereo Headphone & Mono Speaker Amplifiers 36-DSBGA -30 to 85
LM4930 's PackagesLM4930 's pdf datasheet
LM4930LQBD
LM4930LQ LLP
LM4930LQX LLP
LM4930ITL
LM4930ITLX




LM4930 Pinout, Pinouts
LM4930 pinout,Pin out
This is one package pinout of LM4930,If you need more pinouts please download LM4930's pdf datasheet.

LM4930 Application circuits
LM4930 circuits
This is one application circuit of LM4930,If you need more circuits,please download LM4930's pdf datasheet.


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