After acquiring SiRF just about a month ago, CSR is continuing their highly popular SiRF series with SiRFstarIV. This is not just plain old GPS receiver though. SiRFstarIV is a location aware architecture with self assistance (SiRFaware), and micro power GPS technology.
Advantages of SiRFstarIV is that it doesn’t drain your batteries, and it doesn’t need network aid to get a satellite fix. CSR claims their new platform can maintain better than hot start condition and therefore be turned off without worrying about startup delays.
SiRFstarIV has twice the search capacity of SiRFstarIII platform with enhanced sensitivity, ability to maintain hot-start condition while only using 50-500 microamperes, ability to support accelerometers and other sensors and DSP technology that searches for jammers and removes them prior to correlation for better GPS performance.
The first product from the new SiRFstarIV platform is called SiRFstarIV GSD4t and it is already out… press release
http://www.navigadget.com/index.php/2009/07/28/sirfstariv-is-out