Configurable optical driver
AssigneeMACOM Technology Solutions Holdings, Inc.
InventorMerrick Brownlee
Life of this patent
Estimating the term…
Abstract
A configurable optical driver circuit includes an adjustable current source circuit configurable to drive one of a variety of different types of electrical to optical devices, an adjustable back-termination resistance circuit configurable to provide a back-termination resistance to the one of a variety of different electrical to optical devices, and a programmable memory configured to provide configuration information to the adjustable current source circuit and to the adjustable back-termination resistance circuit to configure the adjustable current source circuit and the adjustable back-termination resistance circuit for operation with the one of a variety of different electrical to optical devices.
Claims14
A configurable optical driver circuit comprising:
- an adjustable current source circuit configurable to drive one of a variety of different types of electrical to optical devices;
- an adjustable back-termination resistance circuit configurable to provide a back-termination resistance to said one of a variety of different electrical to optical devices;
- and
- a programmable memory configured to provide configuration information to said adjustable current source circuit and to said adjustable back-termination resistance circuit to configure said adjustable current source circuit and said adjustable back-termination resistance circuit for operation with said one of a variety of different electrical to optical devices.
A configurable optical driver circuit comprising:
- a configurable optical driver integrated circuit comprising:
- a current mirror circuit having an adjustable current range;
- digitally controlled variable resistance to adjust back-termination resistance;
- and
- a programmable memory configured to provide configuration information to said current mirror circuit and to said digitally controlled variable resistance to configure said configurable optical driver circuit for operation with one of a variety of different electrical to optical devices;
- a passive biasing network coupled to said configurable optical driver integrated circuit for setting DC bias points at driver outputs and at an optical device, and
- wherein said passive biasing network further comprises a first DC blocking capacitor in series with the transmitting positive output and a second DC blocking capacitor in series with the transmitting negative output of said configurable optical driver circuit.
Dependencies are inferred from the claim text.