The DAC chip I have been using, the ADAU1966, no longer seems to be stocked in Farnell. There is also a new variant the ADAU1966A which looks compatible, and there is some limited stock at Digikey/Mouser. RS have stock of the ADAU1966 but the price is much higher (over double) than I last paid for a few. Both parts are shown as production parts so unsure what has changed.
Cirrus Logic offer a range of 8 Channel DACs that support TDM data modes. They have less channels than the ADAU1966, but may be usable. I need to check master clock requirements and other details but will need a new design. They also seem to be in stock at a number of places.
An electronics engineer and a long term electronics hobbyist. I like tinkering with stuff and making things.