RM3283

The RM3283 consists of two analog ARINC 429 receivers which take differentially encoded ARINC level data andconvert it to serial TTL level data. The RM3283 provides two complete analog ARINC receivers and no external components are required.

Input level shifting thin film resistors and bipolar technology allow ARINC input voltage transients up to ±100V without damage to the RM3283.

Each channel is identical, featuring symmetrical propagation delays for better high speed performance. Input common mode rejection is excellent and threshold voltage is stable, independent of supply voltage. Data outputs are TTL and CMOS compatible.

Two TTL compatible test inputs used to test the ARINC channels are available. They can be used to override the ARINC input data and set the channel outputs to a known state.

The Fairchild RM3182A line driver is the companion chip to the RM3283 line receiver. Together they provide the analog functions needed for the ARINC 429 interface. Digital data processing involving serial-to-parallel conversion and clock recovery can be accomplished using one of the ARINC interface IC's available or by an equivalent gate array implementation.