Peregrine uses its silicon on insulator (SOI) UltraCMOS process to build advanced RF solutions; Global 1 is its first reconfigurable RF front end (RFFE). For the first time, Peregrine claims, 4G LTE platform providers and OEMs will be able to create a single design for global markets.
Peregrine describes the product as a “system” - implying that it is not a monolithic device but a harmonised collection of some of its prior technologies (switches, tuners etc.) and some new (such as the CMOS PA).
To support over 40 frequency bands and a more than 5,000-fold increase in the number of possible operating states, a truly reconfigurable RFFE is now a requirement. This level of reconfigurability is only feasible with a CMOS process, Peregrine asserts. Global 1’s entire system – multimode, multiband (MMMB) power amplifier (PA); post-PA switch; antenna switch; and antenna tuner – is based on the UltraCMOS 10 technology platform.
Global 1 features the first LTE CMOS PA with the same raw performance as the leading gallium arsenide (GaAs) PAs and has a 33% efficiency increase over other CMOS PAs. Peregrine says it has demonstrated GaAs-level efficiency performance at high power, “which could be a game-changer.”
Global 1 RFFE System
On a single chip, Peregrine’s Global 1 RFFE system supports higher band counts through low-loss switching and tunability; high isolation to solve interoperability issues; simple, digitally-controlled adaptation across modes and bands; and, most importantly, PA performance equivalent to GaAs.
The UltraCMOS Global 1 system’s reconfigurable RFFE delivers:
3-path multimode multiband PA, post-PA switching, antenna switch and antenna tuner
Support for envelope tracking
Common RFFE MIPI interface
“After shipping 2 billion switches and tuners, we are proud to announce a truly integrated RF front-end system that enables a single, global SKU,” the company comments.
This design integrates peak-performance RF switches and tuners seamlessly with the first CMOS PA to match the performance of GaAs PAs. This level of performance is