The required accuracy of the 16 MHz clock source is given in the nRF51822 Product Specification, and as can be seen in table 16, it is +-60 ppm for proprietary applications and +-40 ppm for BLE applications. This is the total frequency tolerance required.
The required accuracy of the 16 MHz clock source is given in the nRF51822 Product Specification, and as can be seen in table 16, it is +-60 ppm for proprietary applications and +-40 ppm for BLE applications. This is the total frequency tolerance required.
