Patent ID: 11936353
Assignee: CADENCE DESIGN SYSTEMS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 22:
23. A transmitter for amplifying an input signal to an output signal on an output node, the transmitter comprising:
a first amplifier to amplify the input signal to between a high off level and a pull-up current-source level;
a second amplifier to amplify the input signal to between a low off level and a pull-down current-source level; and
a current driver connected between a first supply terminal and a second supply terminal, the current driver having:
a pull-up transistor having a control terminal coupled to the first amplifier to receive the high off level and the pull-up current-source level, a first current-handing terminal connected to the first supply terminal, and a second current-handling terminal connected to the output node, the pull-up transistor operating as a first switched current source responsive to the high off level and the pull-up current-source level; and
a pull-down transistor having a control terminal coupled to the second amplifier to receive the low off level and the pull-down current-source level, a first current-handing terminal connected to the second supply terminal, and a second current-handling terminal connected to the output node, the pull-down transistor operating as a second switched current source responsive to the low off level and the pull-down current-source level.