AC ’97 Codec With National 3d Sound - National Semiconductor

The LM4540 is an Audio CODEC for PC systems which per- forms the analog-intensive function of the Analog Codec 97 Rev 1.03 architecture. Using 18-Bit A/D and D/A convert- ers, the LM4540 provides 90dB of dynamic range. The LM4540 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. In addition, the LM4540 provides Nationals 3D Sound stereo enhancement technology. The LM4540 features AC-Link, a synchronous, fixed rate se- rial bus for connection to the digital AC 97 Controller. The separation of the Analog and digital functions of the AC 97 architecture allows for system design flexibility and in- creased overall performance. By National Semiconductor Corporation
LM4540 's PackagesLM4540 's pdf datasheet



LM4540 Pinout, Pinouts
LM4540 pinout,Pin out
This is one package pinout of LM4540,If you need more pinouts please download LM4540's pdf datasheet.

LM4540 Application circuits
LM4540 circuits
This is one application circuit of LM4540,If you need more circuits,please download LM4540's pdf datasheet.


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