MDS-MAU physical-layer transceiver for 32.25 Kbps fieldbus links
The onsemi AMIS-49200-XTP is a half-duplex transceiver implementing the MDS-MAU protocol at 32.25 Kbps, with a single driver and single receiver on a 44-LQFP package.
Receiver hysteresis and noise margin in a half-duplex bus
The 250 mV receiver hysteresis provides 250 mV of noise rejection on the bus lines, which is significant for a 32.25 Kbps link running in an electrically noisy industrial environment — the hysteresis band prevents the receiver from toggling on coupled transients below that threshold. With a 1/1 driver/receiver count, this transceiver is designed for point-to-point or multi-drop configurations where one node talks and the rest listen, typical of MDS-MAU fieldbus segments.
Active lifecycle and compliance documentation
The 44-LQFP (10x10 mm) body is a standard surface-mount footprint with 0.8 mm pitch, compatible with conventional reflow profiles for industrial-temperature assemblies.