All-In-One SP6T Switch Smoothes GSM Cell Phone Design

THE MASWSS0091 single-pole, six-throw (SP6T) gallium-arsenide (GaAs) switch simplifies multiband GSM cell phones. Dual, tri, and quad band GSM phones necessitate a complex mix of transmit-receive (Tx-Rx) switches. With this single-chip SP6T switch,...
Aug. 4, 2003

THE MASWSS0091 single-pole, six-throw (SP6T) gallium-arsenide (GaAs) switch simplifies multiband GSM cell phones. Dual, tri, and quad band GSM phones necessitate a complex mix of transmit-receive (Tx-Rx) switches. With this single-chip SP6T switch, everything needed is in one package. Implemented with GaAs pHEMT transistors and having a 0.5-µm gate width, the switch can be configured in a host of ways to connect different GSM/GPRS/EDGE 850/900/1800/1900-MHz transceivers to a common antenna. The chip operates from 2.5 V. The transmit insertion loss is less than 0.65 dB up to 2 GHz. The receive insertion loss is less than 1.3 dB up to 2 GHz. The Tx-Rx isolation is 38 dB at 2 GHz, and harmonics are down −72 dBc at +35 dBm and 1 GHz. And, the MASWSS0091 is available as a die.

M/A-COM Inc.www.macom.com (800) 366-2266

About the Author

Louis E. Frenzel

Louis E. Frenzel

Click here to find more of Lou's articles on Electronic Design. 

Sign up for Electronic Design Newsletters
Get the latest news and updates.

Voice Your Opinion!

To join the conversation, and become an exclusive member of Electronic Design, create an account today!