US 12,381,567 B2
Digital-to-time converter calibration
Michael Henderson Perrott, Nashua, NH (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Mar. 31, 2023, as Appl. No. 18/193,870.
Claims priority of provisional application 63/478,050, filed on Dec. 30, 2022.
Prior Publication US 2024/0223201 A1, Jul. 4, 2024
Int. Cl. H03M 1/10 (2006.01); G04F 10/00 (2006.01); H03K 5/00 (2006.01); H03K 5/13 (2014.01)
CPC H03M 1/1033 (2013.01) [G04F 10/005 (2013.01); H03K 5/13 (2013.01); H03K 2005/00019 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a multi-modulus (MM) divider having a clock input, a first divisor input and a MM divider output;
a delta-sigma modulator having a second divisor input, a divisor output and a residual output, the divisor output coupled to the first divisor input;
a digital-to-time converter (DTC) having a DTC clock input, a DTC control input, a DTC calibration input, and a DTC output; and
a processing circuit having a residual input, a main code output, and a correction code output, the residual input coupled to the residual output, the main code output coupled to the DTC control input, and the correction code output coupled to the DTC calibration input.