Extension of the QRG to utilize an embedded switching DC-DC converter. The DC-DC converter utilizes pulse-width modulation to generate very high efficiency (90-95%) variable supply voltages. The QRG and embedded converter are coupled via a performance feedback control circuit that allows you to operate at the minimum required supply voltage for a given application.
This chip is a low power variable length decoder for MPEG-2 system, fabricated in 0.6µm CMOS process. By exploiting incoming signal statistics, the chip consumes 500µW, which is more than an order magnitude lower power than existing architectures.
