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.
Sample rate range and what it means for the signal chain
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.
Lifecycle and sourcing
It is ROHS3 compliant.