A programmable, multi-GHz, wide-range duty cycle correction circuit in 45nm CMOS process

Ravi Mehta, Sumantra Seth, Siddharth Shashidharan, Biman Chattopadhyay, Sujoy Chakravarty

2012 · 16 citations · 2 references

Concepts

Abstract

A 2GHz wide input dynamic range (25%-75%) duty cycle corrector (DCC) circuit with ±2% output duty cycle accuracy is presented. This DCC circuit supports input frequency ranging from 1GHz to 2GHz. The proposed circuit is implemented in 45nm low voltage (0.9V to 1.4V) digital CMOS process. Presented DCC consumes only 1.4mW and occupies 0.01 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> area. Built-in-self test method is used to test this circuit in production and shows 99.98% pass percentage in silicon.

References

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