Ac \\\'97 Rev 2 Codec With Sample Rate Conversion And National 3d Sound - National Semiconductor

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. Using 18-bit Sigma-Delta A/Ds and D/As, the LM4546 provides 90dB of Dynamic Range. The LM4546 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 A/Ds and D/As 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 Nationals 3D Sound stereo en- hancement. The LM4546 supports variable sample rate conversion as defined in the AC97 Rev2 specification. The sample rate for the A/D and D/A CAN be programmed separately to convert any rate between 4kHz - 48kHz with a resolution of 1Hz. The AC97 architecture separates the Analog and digital functions of the PC Audio system allowing both for system design flex- ibility and increased performance. By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM4546BVH/NOPB Texas Instruments AC ''97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound 48-LQFP -40 to 85
LM4546BVH Texas Instruments AC ''97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound 48-LQFP -40 to 85
LM4546BVHX/NOPB Texas Instruments AC ''97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound 48-LQFP -40 to 85
LM4546 's PackagesLM4546 's pdf datasheet



LM4546 Pinout, Pinouts
LM4546 pinout,Pin out
This is one package pinout of LM4546,If you need more pinouts please download LM4546's pdf datasheet.

LM4546 Application circuits
LM4546 circuits
This is one application circuit of LM4546,If you need more circuits,please download LM4546's pdf datasheet.


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