What this audio ADC brings to the board
The Texas Instruments PCM1863DBTR is a 24-bit audio ADC in a 30-TSSOP surface-mount package. It converts two analog audio channels into digital data, communicating over I²C or SPI.
That means no last-time-buy clock is running, and the part is still being manufactured for new designs. The ROHS3 compliance also clears EU and global regulatory gates without a waiver.
This is a current-production part available through independent distribution. The 30-TSSOP footprint is a common package for audio converters, so board layout reuse across similar TI or third-party parts is straightforward.