Designer Kits

Hittite announces ten (10) new prescaler standard products that operate from DC to 13 GHz. Standard division ratios of two, four, and eight have been introduced, and are available in both surface mount packages and chip form. The product line is designed to support high frequency telecommunication radios, microwave instrumentations, and optical subsystems where low phase noise PLL control circuitry or broadband frequency translation is necessary. The phase noise performance of the product line will support most complex telecommunication applications. Single side band phase noise performance is between -145 dBc/Hz and -153 dBc/Hz at 100 KHz offset is typical at 25 degrees Celsius, depending on the model.

The prescalers operate from a single positive five-volt (+5V) supply and therefore eliminate complex bypass circuitry and differential bias voltage configurations. Differential biasing is not required. The only external components required are DC blocks on the RF I/O ports, and a bypass capacitor on Vcc.

Chip versions HMC361, HMC362, HMC363, HMC364, and HMC365 offer selectable output power biasing control, for optimizing output power and current consumption for the specific application. The chips' utilize via hole MMIC technology, and therefore require no ground "down wire bonds". The customer may manufacture using standard Microwave Integrated Circuit (MIC) assembly techniques.

The surface mount prescalers are designated with an "S8G" suffix, and are offered in an industry standard eight lead SOIC8 package with an exposed ground/heat sink. Products can be shipped in tubes or tape and reel for mass volume production, and can be mounted using standard high volume reflow applications.

Hittite's prescaler product line is designed to support high volume applications. All products are immediately available from Hittite.

Sample and production quantities are available from stock. Data sheets are available on our web site, www.hittite.com, or can be faxed upon request.