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News

MIL STD Data bus with single packaged transceiver and transformer


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National Hybrid
: 15 December, 2009  (New Product)
Small footprint Bus+ from National Hybrid combines transceiver and transformer in a single unit for the avionics and defence industries
MIL STD Data bus with single packaged transceiver and transformer
National Hybrid, a provider of key 1553 databus products and technologies to the military, Avionics and industrial markets and a division of API Technologies, and Pulse Engineering, a division of Technitrol, have jointly developed the Bus+ (pronounced Bus Plus), the first, and smallest, MIL-STD-1553 data bus that combines a transceiver and transformer into a single package.

Designed for Avionics and defence applications requiring components that are high density and highly reliable, yet compact and low power, the new Bus+ is ideal for use in a diverse set of space-constrained, mission-critical environments as found in aircraft and unmanned vehicles.

By combining National Hybrid's proprietary transceiver ASIC and Pulse's 1553-45 or 1553-71 dual ratio transformer into one board product, the Bus+ integrates sophisticated, state-of-the-art technologies. The transceiver features a dynamic offset range of -250 mV to + 250 mV as well as a maximum output noise of only 10 mV and a minimum output impedance of 3,000 Ohms.

The new Bus+ operates with a +5 VDD or +3.3 VDD power supply, +/-5%. With a +5 V power supply, the Bus+ dissipates up to 0.184 W of power and 35 mA of current in standby (no transmission) and less than 1.0 W with one channel transmitting at 100% duty cycle. The peak pulse current for +5 volt operation is 650 mA and 900 mA for +3.3v operation. The receiver differential input voltage is 15 VPP for the +5 V version and 12 VPP with a +3.3 V power supply.

Measurements of the new component are 0.4in (L) x 0.4in (W) x 0.185in (H).

The Bus+ is available with an industrial operating temperature range from -40C to +85C or a military operating temperature range from -55C to +125C. Soldering temperature is 300C and storage temperature ranges from -65C to +150C.

Pricing for the Bus+ (NHI-15901) starts at $90 per unit in 100 piece quantities. Delivery is stock to four weeks ARO.
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