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Oscillator for smart munitions bears 100,000g shock

Posted: 10 Jul 2013 ?? ?Print Version ?Bookmark and Share

Keywords:IQD? oscillators? smart munitions? projectile electronics?

IQD has unveiled its new HGXO series of surface mount oscillators. The company's latest offering is designed primarily for military applications such as smart munitions and projectile electronics although the devices can also be used in demanding industrial applications.

Designed around a hermetically sealed high-shock crystal and a CMOS compatible integrated circuit, the new device is able to survive shock levels of up to 100,000G and vibration levels of 20g at 10-2000Hz swept sine in accordance with MIL-STD-202G.

Housed in an industry standard 7x5mm 4-pad ceramic package with metal lid, 5 supply voltage versions are available at 5.0V, 3.3V, 3.0V, 2.5V and 1.8V, thus providing compatibility with the latest generation of low power chipsets. Output frequencies can be specified between 460kHz and 50MHz with a 15pF HCMOS drive capability. Frequency tolerance is available down to 10ppm whilst frequency stability can be specified at 40ppm over the full military temperature range of -55 to 125C down to 10ppm over commercial temperature ranges coupled with low frequency ageing characteristics.

Variants are also available which incorporate enable/disable and tri-state control. In keeping with its military capability, the range can be specified with a number of termination finishes, including tin/lead where to use a device that is RoHs compliant would cause approval issues. However RoHs compliant finishes are also available for less sensitive applications. Duty cycle is 40 per cent min and 60 per cent max with a start-up time of 5ms max and a rise and fall time of 6ns max. Packaging options include tray pack or tape and reel.

The HGXO range is part of a comprehensive range of military specified products available from IQD covering both high specification crystals as well as oscillators.

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