Errata nRF9160 - SAADC: Reduced SFDR

This anomaly applies to IC Rev. Revision 1, build codes SICA-B0A.

Symptoms

Reduced SFDR on SAADC.

DC/DC refresh mode.

Typical SFDR reduced to 60 dBc in DC/DC refresh mode.

Set register as below. For secure mode:

 
*((volatile uint32_t *)0x50004A38) = 0;

For non-secure mode:

 
*((volatile uint32_t *)0x40004A38) = 0;