Stereo sample rate converter for digital audio interfaces
The Texas Instruments SRC4382IPFB is a two-channel sample rate converter for digital audio interfacing. It accepts input sample rates from 4 kHz to 216 kHz. The device operates from a 3 V to 3.6 V supply and is specified over the industrial temperature range of -40°C to 85°C. It comes in a 48-pin TQFP package (7x7 mm body) with a surface-mount footprint, suitable for professional audio equipment, broadcast consoles, digital mixing desks, and audio interface cards that require asynchronous sample rate conversion between digital audio sources.
The 4 kHz to 216 kHz input range covers narrowband voice through professional studio rates.
Control interface and integration
Dual I²C and SPI support means the SRC4382IPFB can drop into designs where the host already has one bus type without adding a protocol translator. I²C is the usual choice when only a few registers are accessed at startup; SPI gives faster register readback for monitoring conversion status or debugging. The interface selection is typically strapped with a hardware pin, so the BOM sees no extra glue logic.
It is ROHS3 compliant.