High-speed SSR transmit driver
View Patent ↗A high speed transmit driver is provided, along with methods to improve driver slew rate, decrease transmit jitter, improve termination accuracy, and decrease sensitivity to supply noise.
1. A high-speed transmit driver comprising:
at least one inverter with a series capacitor at the inverter output; and
at least one mutiplex block to turn off the at least one inverter in applications that do not require a very large slew rate.
2. The high-speed transmit driver of claim 1 , wherein applications that do not require a very large slew rate comprise applications with a data rate of less than 14 Gbp/s.
3. The high-speed transmit driver of claim 1 , wherein a source series terminated driver architecture is used.
4. The high-speed transmit driver of claim 1 , further comprising a controllable delay stage to maximize the driver slew rate.
5. A method of increasing the slew rate of a high-speed transmit driver comprising:
receiving a driver input signal at the driver;
feeding a portion of the driver input signal directly to a driver output through a feedforward path comprising a capacitive impedance network; and
matching the delay of the feedforward path with the components of the driver that do not employ the feedforward path.