A 1 V multi-threshold voltage CMOS DSP with an efficient power management technique for mobile phone application

A low-power digital signal processor (DSP) is the key component for battery-driven mobile phone equipment since a vast amount of data needs to be processed for multimedia use. Reduced supply voltage is a direct approach to power reduction. This 1 V DSPLSI with 26 MOPS and 1.1 mW/MOPS performance adopts a multi-threshold-voltage CMOS (MTCMOS) technique. A small embedded power-management processor decreases power during waiting periods.