I looked up the data sheet for the DS00VQ100 chip and it's only 12.8MHz
I looked at the schematic for my phone - the highest frequency section is probably the 5GHz WiFi, yet the clock for that is derived from a 48MHz crystal.
(If it didn't have the 5GHz band option, then the 2.4GHz band would be clocked from the same 19.2MHz crystal that provides the system clock for the 1.7GHz processor)