MA28139 Datasheet, PDF (23/34 Pages) Dynex Semiconductor – OBDH Bus Terminal

RECEIVER
MA28139
Two OBDH bus window discriminator schemes, based on balanced and unbalanced techniques are shown.
Current-limiting and protection resistors may be employed to prevent damage under short-circuit.
Latching and/or non-latching relays may be used to provide isolation from the bus when a redundant circuit is unused or
unpowered.
Noise filtering and the effects of bus loading should be considered.
Redundancy can be handled in channels (as shown) or by applying cross-strapping between the transformers and the receivers.
Figure 20: Conceptual OBDH Bus Window Discriminator Scheme
23/34