Design and Performance Analysis of Asynchronous GRO based Time to Digital Converter

Design and Performance Analysis of Asynchronous GRO based Time to Digital Converter

An Asynchronous Gated Ring Oscillator based Time to Digital Converter (A-GRO-TDC) is proposed. Gating functionality is added to a simple Ring Oscillator which drastically improves the system performance with asynchronous operation. Energy saving is possible due to scrambling and first order noise sh...

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Veröffentlicht in:International journal of computer applications 2015-01, Vol.112 (14)
Hauptverfasser: Deshmukh, Anita Arvind, Joshi, Akash, Deshmukh, R B
Format: Artikel
Sprache:eng
Schlagworte:
CMOS
Computer simulation
Converters
Corners
Design engineering
Digital
Energy conservation
Gating and risering
Oscillators
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Zusammenfassung:An Asynchronous Gated Ring Oscillator based Time to Digital Converter (A-GRO-TDC) is proposed. Gating functionality is added to a simple Ring Oscillator which drastically improves the system performance with asynchronous operation. Energy saving is possible due to scrambling and first order noise shaping. The proposed 9 bit A-GRO-TDC is implemented in Cadence using 0. 18µm digital CMOS Technology. Pre and post layout simulation with corner analysis shows good linearity. All these features with very little power between 16µW to 26µW make it suitable for IoT applications. It consumes an active area of 550µm x 410µm.
ISSN:0975-8887
0975-8887
DOI:10.5120/19736-1530