Building on its expanding wireless product portfolio, Analog Devices, Inc. unveiled a new family of dual PLL (phase locked loop) synthesizers that deliver the world's best phase noise performance for frequency and timing generation applications. PLL synthesizers together with the local oscillator (LO) are used for the upconversion and down conversion of RF signals. Local oscillators form the basis of a variety of communications systems, including mobile handsets, wireless base stations, wireless Internet devices, PDAs, wireless LAN (Local Area Network), LMDS (Local Multipoint Distribution System) applications and more.

This family has to be the highest value of PLL out there today. For $2 or less you can have a dual PLL with frequencies ranging from 550 MHz to 3 GHz to implement the local oscillators in both receivers and transmitters, with both an IF and an RF prescaler on board. The phase noise characteristics are superb and there is enough programmability to satisfy a myriad of users and industries. The spurious signals produced are also superbly low in designs where the loop bandwidth is kept high (such as 20 kHz.)