LM4546B Datasheet (National Semiconductor) - AC 97 Rev 2 Multi-Channel Audio Codec

LM4546B, AC 97 Rev 2 Multi-Channel Audio Codec

The LM4546B is an audio codec for PC systems which is fully PC99 compliant and performs the analog intensive functions of the AC ’97 Rev 2.1 architecture.

Using 18-bit Sigma-Delta ADCs and DACs, the LM4546B provides 90 dB of Dynamic Range.

The LM4546B was designed specifically to provide a high qual

LM4546B Features

* full duplex stereo ADCs and DACs and analog mixers with access to 2 stereo and 2 mono inputs. Each mixer input has separate gain, attenuation and mute control and the mixers drive 1 mono and 1 stereo output, each with attenuation and mute control. The LM4546B supports National’s 3D Sound stereo enha