SAN DIEGO--Peregrine Semiconductor Corp. today announced a new MOSFET quad mixer IC for cellular phone base stations and cable modems operating up to frequencies of 2.5 GHz. The PE4120 is fabricated with CMOS using Peregrine's patented Ultra-Thin Silicon (UTSi) technology, which the company says cost less than silicon-germanium (SiGE), gallium-arsenide (GaAs), or BiCMOS processes.
The quad mixer is a passive broadband device, which handles a range functions from frequency conversion to phase detection at speeds up to 2.5 GHz. Peregrine said the mixer has a conversion loss of just 6 dB across its entire operating frequency range.
The device is fabricated by foundry partners in the U.S. and Japan for the San Diego company. Peregrine said its UTSi process enables IC designs to achieve very high-frequency operation with low-power consumption and low-voltage operation (less than 1 V), with a cost structure comparable to CMOS.
The PE4120 operates across a frequency range from 500 MHz to 2.5 GHz, mixing received radio-frequency signals with the output of a local oscillator (LO) to produce an intermediate frequency (IF). For transmission, the part mixes IF and LO signals for an RF output.
In quantities of 10,000, the quad mixer is priced at $1 each in an 8-pin TSSOP or SOT-23 package. Samples are now available, and volume production is slated to start in the second quarter of 2000. Peregrine said it plans to demonstrate the PE4120 at the Wireless Symposium in San Jose during Feb. 22-24.