SLLSFN5A June 2023 – February 2024 ISO1228
PRODUCTION DATA
The ISO1228 supports in-built digital low pass filters on the INx and WBx data paths. The filters can be programmed through SPI registers (where each channel filter can be individually programmed) or through the pins F0 and F1. F0 and F1 pins support three input states, high, low, and float, resulting in 9 values of digital filtering. Refer to the Switching Characteristics section for values of the digital filters. The filter values in the SPI registers take precedence. If any SPI filter Enable has a non-zero value, then the states of F0 and F1 pins are ignored.
ISO1228 also supports a digital filter on the Wire Break detection fault. This is a fixed, non-programmable, 30ms filter.