sample_embedding_folder2/0718244.txt

Ticket Name: TDA2: Why crystal for xi_osc1 input is different from xi_osc0?

Query Text:
Part Number: TDA2 I am referring to VAYU EVM schematic, is there any special reason why xi_osc1 uses 22.5792MHz crystal but not 20MHz crystal, same as what is used at xi_osc0? Notice that the 20MHz crystal specification can fulfill the requirements stated for xi_osc1.

Responses:
Hi, OSC1 is optional and only OSC0 is mandatory for the device. OSC1 is useful for on-chip audio peripherals and allows you to use an 'audio frequency', one example of such is 22.5792MHz. If you are currently designing a PCB, place a crystal footprint for OSC1 - you can decide for the crystal frequency or for no-pop at later time. Regards, Stan