LM4549B Datasheet | National Semiconductor

LM4549B AC ’97 Rev 2.1 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound September 2006 LM4549B AC ’97 Rev 2.1 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound General Description The LM4549B is an audio codec for PC systems which is fully PC99 pliant and performs the analog intensive functions of the AC ’97 Rev 2.1 architecture. Using 18-bit Sigma-Delta ADCs and DACs, the LM4549B provides 90 dB of Dynamic Range. The LM4549B was designed specifically to provide a high quality audio path and provide all analog functionality in a PC audio system. It Features full duplex stereo ADCs and DACs and analog mixers with access to 4 stereo...