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US 2016/0112016 A1Published application
Silicon photonics modulator driver
AssigneeCisco Technology, Inc.
InventorsKadaba LAKSHMIKUMAR, Craig APPEL
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AssigneeCisco Technology, Inc.
InventorsKadaba LAKSHMIKUMAR, Craig APPEL
Estimating the term…
Embodiments generally relate to a conversion arrangement, a driver arrangement, and a method of producing a complementary complementary metal-oxide-semiconductor (CMOS) output signal for driving a modulator device. The conversion arrangement includes a differential amplifier configured to produce a first amplified signal based on the differential input signal, and at least two transimpedance amplifiers (TIAs) coupled with respective outputs of the differential amplifier and configured to produce a second amplified signal based on the first amplified signal. Respective bias voltages for the TIAs are based on the first amplified signal. The conversion arrangement further includes a common-mode feedback arrangement coupled with outputs of the TIAs and configured to control the first amplified signal based on the second amplified signal, thereby controlling the bias voltages, wherein the complementary CMOS output signal is based on the second amplified signal.
A conversion arrangement for converting a differential input signal to a complementary complementary metal-oxide-semiconductor (CMOS) output signal, the conversion arrangement comprising:
A driver arrangement configured to receive a differential input signal and to produce a complementary complementary metal-oxide-semiconductor (CMOS) output signal for driving a modulator device, the driver arrangement comprising:
The driver arrangement of claim 10, wherein the conversion arrangement is further configured to, at a second inverter amplification stage coupled with an output of the TIAs, produce a rail-to-rail complementary CMOS output signal based on the second amplified signal.
A method of producing a complementary complementary metal-oxide-semiconductor (CMOS) output signal for driving a modulator device, the method comprising:
Dependencies are inferred from the claim text.