Nippon Precision Circuits Inc. announces the beginning of a sample production run of the SM5849AF, a low supply voltage(3.3V) asynchronous sample rate converter capable of converting signals sampled at 24bit/96kHz. The SM5849AF builds upon the success of NPC's SM5844AF which was designed to handle signals sampled at 20bit/48kHz. In particular, the SM5849AF was developed to meet the digital audio market's demand for a low supply voltage asynchronous sample rate converter able to process High-bit/High-sample rate signals.

In addition, since a wide range of sample rates are often employed in Digital Audio applications the SM5849AF was designed to be able to output signals of various sample rates.

Moreover, by using asynchronous inputs and outputs the SM5849AF can adjust for small differences in the sample rate that arise solely from using different system clocks.

Furthermore, this design also insures that the jitter of the input clock is not passed on to the output signal.

The SM5849AF supports 16/20/24-bit word length input/output data including IIS, an input sample rate range of 2kHz to 100kHz, and an output sample rate range of 4kHz to 200kHz.

NPC hopes to use similar technology as employed in the SM5849AF to design other LSI needed for audio applications.