Abstract:
This paper presents a 25.6-27.5GHz integer-N Phase-Locked Loop (PLL) implemented in a 5nm FinFET process technology. The PLL incorporates a class-B LC VCO, a low-ripple P...Show MoreMetadata
Abstract:
This paper presents a 25.6-27.5GHz integer-N Phase-Locked Loop (PLL) implemented in a 5nm FinFET process technology. The PLL incorporates a class-B LC VCO, a low-ripple PFD+CP and a wide-range programmable feedback divider. Targeting at 26.56GHz for a 106Gb/s Serializer-Deserializer (SerDes) application, the test chip achieves <90fs-rms jitter (integrated from 100Hz to Nyquist frequency) and <-120dBc reference spur with a CDR highpass bandwidth of 4MHz, for a power consumption of ~28mW from 0.875V supply.
Date of Conference: 26-27 October 2021
Date Added to IEEE Xplore: 16 November 2021
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