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RF/Microwave??

Zarlink prescalers operate to 13.5GHz

Posted: 11 Dec 2002 ?? ?Print Version ?Bookmark and Share

Keywords:zarlink semiconductor? zl40813? zl40814? zl40818? prescaler?

Zarlink Semiconductor Inc. has announced the release of the ZL40813/14/18 single-chip prescalers that convert RF signals up to 13.5GHz to lower frequencies and allow designers to use low-cost PLL sync circuits to control and modulate HF RF signals.

Fabricated using the company's complementary silicon bipolar process, the prescalers are targeted for use in VSAT satellite receivers and transmitters, point-to-point microwave networking equipment, broadband LMDSs, radar systems, instrumentation and measurement equipment, and other types of radios.

The ICs convert signals operating between 10.5GHz and 13.5GHz to lower-frequency signals in fixed division ratios. The ZL40813 divides high-frequency signals by eight, the ZL40814 divides them by 16, and the ZL40818 divides them by four.

At offset frequencies of 10KHz, the prescalers exhibit a phase noise >-140dBc/Hz when processing 12GHz signals. The chips operate from a 5V source and dissipate as little as 460mW. They can also be used in combination with the company's SP5000 series of low-noise frequency synthesizers that operate over the 1GHz to 3GHz frequency range.

The prescalers are offered in 8-pin SOIC or EPAD SOIC packages and costs $9 each.





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