Fast charge for quick amplifier settling

摘要

A fast switching time is highly desired in the design of mobile handsets. The limiting factor in the switching time is the resistor through which bias is applied to amplifiers used within such handsets. Bypassing the bias resistor when amplifiers are transitioning is a way to improve switching time without compromising the RF performance. Methods and devices to generate short pulses without relying on a continuously running clock and used to bypass bias resistors are described.