A 56Gbps PAM-4 optical receiver front-end | IEEE Conference Publication | IEEE Xplore

A 56Gbps PAM-4 optical receiver front-end


Abstract:

A 56Gbps PAM-4 optical receiver front-end is presented. In order to reduce the input-referred current noise of the receiver front-end, the shunt feedback resistor Rf of t...Show More

Abstract:

A 56Gbps PAM-4 optical receiver front-end is presented. In order to reduce the input-referred current noise of the receiver front-end, the shunt feedback resistor Rf of the TIA is enlarged. And, the equalizer is inserted to boost the high-frequency gain and extend the bandwidth. The AGC amplifier using the proposed dB-linear VGAs is further to lower the noise. This PAM-4 optical receiver front-end is fabricated in a 40 nm CMOS process. Its power is 120mW from a supply of 1.2V excluding the output buffers. Its core area is 0.21mm2.
Date of Conference: 06-08 November 2017
Date Added to IEEE Xplore: 28 December 2017
ISBN Information:
Conference Location: Seoul, Korea (South)

References

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