ZHCSHD7A January 2018 – April 2020 ADC12DJ2700
PRODUCTION DATA.
The ADC12DJ2700 has an additional feature that can be enabled to reduce offset-related interleaving spurs at fS / 2 and fS / 4 (single input mode only). Offset filtering is enabled via CAL_OSFILT. The OSFILT_BW and OSFILT_SOAK parameters can be adjusted to tradeoff offset spur reduction with potential impact on information in the mission mode signal being processed. Set these two parameters to the same value under most situations. The DC_RESTORE setting is used to either retain or filter out all DC-related content in the signal. This feature implements a notch filter at fS / 2 and fS / 4 (single input mode only) and also filters out signals that fall at these frequency locations. Reducing the notch filter bandwidth using OSFILT_BW can reduce the range of signals that are filtered by this feature.