Synthesizer Spans 375 MHz To 5.6 GHz

April 20, 2010
BY COVERING A BROAD FREQUENCY RANGE, a new synthesizer promises to allow base-station providers to implement a onechip solution for all frequencies instead of using more than 10 different discrete solutions. The SKY73134 is designed to cover all ...

BY COVERING A BROAD FREQUENCY RANGE, a new synthesizer promises to allow base-station providers to implement a onechip solution for all frequencies instead of using more than 10 different discrete solutions. The SKY73134 is designed to cover all GSM, WCDMA, and LTE frequency bands with one device. This wideband, integer-N frequency synthesizer boasts a locking range of approximately 6 GHz. The 5-x-5- mm device includes four differential voltage-controlled oscillators (VCOs). Thanks to the application of internal VCO frequency division, they continuously cover the output frequency from 0.375 to 5.600 GHz. At 960 MHz, the integrated phase noise from 100 Hz to 100 kHz measures less than 0.6 deg. RMS. At 100-kHz, 1-MHz, and 3-MHz offsets, single-sideband phase noise is -115, -143, and -150 dBc/Hz, respectively. The SKY73134 is controlled by a bi-directional read/write serial-to-parallel interface.

Skyworks Solutions, Inc., 20 Sylvan Rd., Woburn, MA 01801; (781) 376- 3000, Internet: www.skyworksinc.com.

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