HI-35851

The HI-35851 is an ARINC 429 repeater which ensures that ARINC 429 signals can be reliably received from a transmission source and re-transmitted to another receiver (for example at the end of a long transmission line) that may otherwise not detect the signal of the original transmitter due to signal degradation. The HI-35851 will ensure the original transmitter signal can be relayed efficiently with the same signal integrity as the original source. 

 

The line receiver input pins and line driver output pins have options with different input resistance and output resistance values respectively, providing flexibility when using external lightning protection circuitry. External digital input control pins are also provided to set the receiver and transmitter data rates, which allow data received from a low speed ARINC 429 bus to be re-transmitted on the output bus at high speed. The device also has an option to flip the bit order of the received 8-bit ARINC 429 label prior to re-transmission. 

 

In addition, the HI-35851 features ARINC 429 digital outputs, which provide an option to utilize an external line driver, for example Holt’s HI-8592 or HI-8596. An additional digital output sets the data rate on the external line driver. Using an external HI-8596 line driver allows a repeater combination capable of running from a single 3.3V power supply. 

 

 

Features

  • ARINC 429 specification compliant 
  • 3.3V or 5.0V logic supply operation 
  • No microprocessor necessary
  • On-chip analog line driver and receiver connect directly to ARINC 429 bus 
  • Independent pin programmable Transmit and Receive data rate/slope
  • Re-transmit ARINC 429 low speed data at high speed
  • External input or output resistor options provide flexibility of additional external lightning protection
  • Pin programmable label bit-order control
  • 3.3V single-supply solution using external Holt line driver
  • Low Power
  • Extended temperature range

  

 

 

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ADK-35851 Evaluation Board: HI-35851 ARINC 429 Repeater

ADK-35851 Evaluation Board: HI-35851 ARINC 429 Repeater

The ADK-35851 Evaluation board demonstrates Holt’s HI-35851 ARINC 429 Repeater. The HI-35851 facilitates repeater functionality without the need for a microcontroller. Repeaters are useful to help clean up signaling resulting from long cable implementations or to match differing ARINC 429 data rates.
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