Mellanox Technologies, Ltd.

Naor Peretz

Igal Kushnir

Roi Levi

Technologies for duty cycle distortion (DCD) estimation are described. A transmitter includes a first output driver comprising a first complementary metal-oxide semiconductor (CMOS) amplifier and a first attenuator coupled to an output of the first CMOS amplifier. The first CMOS amplifier receives an input signal and outputs an intermediate signal to the first attenuator. The first attenuator receives the intermediate signal and outputs an output signal having a signal swing that is less than a signal swing of the input signal. A first duty cycle correction (DCC) loop is coupled to the first output driver. The first DCC loop estimates first DCD in the intermediate signal output by the first CMOS amplifier.

Duty cycle distortion (DCD) sampling in a low-swing transmitter

Technologies for jitter extraction are described. A receiver device includes an analog-to-digital converter (ADC) and a signal processing circuit. The signal processing circuit includes an equalizer block to output current data based on samples from the ADC. A clock-recovery (CR) block includes a timing error detector (TED) or a phase detector to measure a sampling offset. The CR block can use the sampling offset to control sampling of subsequent data by the ADC. A jitter extraction block can use the sampling offset to re-sample the current data to obtain re-sampled data based on the sampling offset to remove jitter from the current data.

Growing community of inventors

Kiryat Ata, Israel

Naor Peretz