LM4930 Overview
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.
LM4930 Key Features
- 23 16-bit Resolution 48kHz Stereo DAC
- 16-bit Resolution 8kHz Voice Codec
- I2S Digital Audio Data Serial Interface
- Two-wire Serial Control Interface
- PCM Voice Audio Data Serial Interface
- 25mW/channel Stereo Headphone Amplifier
- 330mW Mono 8Ω Amplifier (at AVDD = 3.0V)
- 32-step Volume Control for Audio Output
- No Snubber Networks or Bootstrap Capacitors
- Digital Sidetone Generation with Adjustable Attenuation
