Datasheet Details
- Part number
- LM4546
- Manufacturer
- National Semiconductor
- File Size
- 308.41 KB
- Datasheet
- LM4546_NationalSemiconductor.pdf
- Description
- AC97 Codec
LM4546 Description
LM4546 AC ’97 Rev 2 Codec with Sample Rate Conversion and National 3D Sound February 1999 LM4546 AC ’97 Rev 2 Codec with Sample Rate Conversion and .
The LM4546 is an audio codec for PC systems which is fully PC98 compliant and performs the analog intensive functions of the AC97 Rev 2 architecture.
LM4546 Features
* full duplex stereo A/D’s and D/A’s and an analog mixer with 2 stereo and 3 mono inputs, each of which has separate gain, attenuation and mute control. The LM4546 also provides National’s 3D Sound stereo enhancement. The LM4546 supports variable sample rate conversion as defined in the AC97 Rev2 spec
LM4546 Applications
* n Desktop PC Audio Systems n Portable PC Systems n Mobile PC Systems
Block Diagram
DS100985-1
FIGURE 1. LM4546 Block Diagram
© 1999 National Semiconductor Corporation
DS100985
www. national. com
Absolute Maximum Ratings (Note 3)
If Military/Aerospace specified devices are required, please conta
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