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US 11,722,109 B1Granted
Integrated transimpedance amplifier with a digital signal processor for high-speed optical receivers
AssigneeAvago Technologies International Sales Pte. Limited
InventorsJiawen Zhang, Delong Cui, Afshin Momtaz, Kun Chuai, Jun Cao
Life of this patent
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Abstract
An optical module includes an optical receiver with a complementary metal-oxide semiconductor (CMOS) transimpedance amplifier (TIA) and a digital signal processing (DSP) circuit. The DSP circuit is integrated with the CMOS TIA and facilitates adaptability of the CMOS TIA, and the CMOS TIA can adapt by using information provided by the DSP circuit.
Claims20
An optical receiver, comprising:
- an integrated circuit comprising:
- a digital signal processor (DSP) circuit;
- and
- a transimpedance amplifier (TIA) circuit merged with the DSP circuit onto a single chip, thereby allowing the DSP circuit to control a parameter of the TIA circuit.
1 more element
An optical receiver, comprising:
- a photoelectric converter configured to convert optical signals into electrical signals;
- an integrated circuit coupled to the photoelectric converter, the integrated circuit comprising:
- a digital signal processor (DSP) circuit;
- and
- a transimpedance amplifier (TIA) circuit comprising:
- a first amplifier, and
- a second amplifier,
- wherein the DSP circuit is directly connected to the second amplifier.
5 more elements
An integrated circuit, comprising:
- a digital signal processor (DSP) circuit;
- and
- a complementary metal-oxide semiconductor transimpedance amplifier (CMOS TIA) circuit comprising:
- a first amplifier, and
- a second amplifier,
- wherein the DSP circuit is i) directly connected to the amplifier and the second gain amplifier and ii) configured to control the CMOS TIA circuit.
3 more elements
Dependencies are inferred from the claim text.