A Self-Calibrating Sub-Picosecond Resolution Digital-to-Time Converter Conference Paper uri icon


  • A novel Self-Calibrating high-resolution Digital-to-Time Converter (DTC) achieves 1024 individual phase states with a resolution of 0.5ps. The phase interpolation is done in steps, by using a cascade of coarse active delay locked line and a passive programmable fine delay. The DTC is capable of self-calibration by using an integrated Dual Mixer Time Domain (DMTD) circuit to overcome device mismatch and process variations. The DTC is constructed using 90nm standard digital CMOS technology at 1GHz RF frequency. Future improvements are expected to increase the resolution to 0.1 ps and below. © 2007 IEEE.

author list (cited authors)

  • Nagaraj, G., Miller, S., Stengel, B., Cafaro, G., Gradishar, T., Olson, S., & Hekmann, R.

publication date

  • January 1, 2007 11:11 AM