Mission Viejo, CA (October 28, 2014) - Holt Integrated Circuits today introduced HI-1590, a new MIL-STD-1553 dual-bus transceiver with variable amplitude transmitter outputs. The output amplitude is controlled by programming an internal Digital-to-Analog Converter (DAC) via a Serial Peripheral Interface (SPI) or using an analog control voltage input. The new device is pin-compatible with Holt’s already popular HI-1570 and is designed for use with Holt MIL-STD-1553 isolation transformers.
The HI-1590 is targeted primarily at MIL-STD-1553 bus test and analysis equipment, where the variable transmitter output facilitates receiver sensitivity testing. An SPI interface provides software control of the output amplitude, allowing greater flexibility than the more common voltage analog control pin, which is also available. Two ranges for digital control provide better resolution for low-level transmission. The device is the only digitally programmable variable output amplitude dual transceiver to operate from a 3.3V supply. The HI-1590 uses the same isolation transformer turns ratio of 1:2.5 for both direct and transformer coupled applications.
“The addition of a software controlled output voltage provides the MIL-STD-1553 test equipment community with a much needed option,” said Anthony Murray, Director of Business Development at Holt. “This additional feature is provided in the same package and footprint as existing industry standard devices with no software control.”
The HI-1590 is packaged in a compact 44-pin, 7mm x 7mm plastic QFN with an isolated exposed heat sink on the bottom, which may be soldered to the PCB power or ground plane for improved thermal dissipation. The device is available in industrial −40oC to +85oC and extended −55oC to +125oC temperature ranges.
To request information on Holt’s ARINC 429, CAN, MIL-STD-1553 and other aerospace products, readers should contact Holt at (949) 859-8800, by e-mail at info@holtic.com, or visit the Holt Web site at www.holtic.com.
About Holt Integrated Circuits
Located in Mission Viejo, CA, Holt Integrated Circuits is a major supplier of ICs for avionics and military data bus and display applications. The company’s products are specified by more than 400 manufacturers worldwide and are employed in flight control, navigation, engine management, communications, safety equipment, and in-flight entertainment systems.
Holt’s range of ICs supporting the ARINC 429 standard is the widest in the industry and its MIL-STD-1553 transceivers are recognized as the industry’s smallest, having the lowest power consumption. In addition, Holt MIL-STD-1553 integrated terminals offer the most compact, cost effective solution available, integrating protocol, transceiver and transformers in a single 15x15mm package. Other data bus products include ARINC 717, CAN (ARINC 825), RS-485/422 and analog switches. Select products are available to DSCC SMD specifications. Holt also offers product compliant to the European Union "RoHS Directive 002/95/EC".
Holt Integrated Circuits is ISO 9001:2008 registered and is a STACK certified supplier and recipient of the STACK International 2012 Gold Supplier Award.
