Freescale used the 3GSM conference to drop hints toward a new front-end architecture that will get rid of bulky and expensive SAW filters.
Though Freescale had a plethora of announcements at this year's 3GSM conference here in Barcelona, one of the more interesting tid-bits came from not from a release but instead from a question I put to Sandeep Chennakeshu, general manager of Freescale's Wireless and Mobile Systems Group.
When I asked what Freescale intends to do about making the typical handset's front-end more integrated in the face of rising numbers of radios interfaces and bands that need support, he hinted at a new approach that will at least get rid of the bulky and expensive SAW filters.
That's no mean feat. Though necessary for the high-quality filtering needed at the receivers' highly sensitive front end, the cost and space requirements of those devices has put them at the top of the engineers' 'got to get rid of' list. Now, according to Chennakeshu, Freescale is developing a voltage-current transformation that will allow it to do the filtering without SAW filters.
While that technique in and of itself isn't new, Chennakeshu said that it's the architecture behind it that's interestingand that I'll have to wait a little longer to find out more. Depending on how long it takes them to complete such a design, it'll be well worth the wait.