US 11,894,655 B2
H-bridge integrated laser driver
Karim Vincent Abdelhalim, Newport Coast, CA (US); and Michael Q. Le, Laguna Niguel, CA (US)
Assigned to SITRUS TECHNOLOGY CORPORATION, Shanghai (CN)
Filed by SITRUS TECHNOLOGY CORPORATION, Shanghai (CN)
Filed on Sep. 28, 2020, as Appl. No. 17/035,664.
Application 17/035,664 is a continuation of application No. 16/874,464, filed on May 14, 2020, granted, now 10,790,636.
Claims priority of provisional application 62/854,219, filed on May 29, 2019.
Prior Publication US 2021/0028597 A1, Jan. 28, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01S 5/042 (2006.01); H03K 5/003 (2006.01); H03M 1/66 (2006.01); H04B 1/04 (2006.01); H04L 25/03 (2006.01)
CPC H01S 5/0427 (2013.01) [H03K 5/003 (2013.01); H03M 1/66 (2013.01); H04B 1/0475 (2013.01); H04L 25/03343 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An H-bridge integrated laser driver, comprising:
a retimer configured to convert low-speed parallel data to a high-speed serial bit stream and to an inverted representation of the high-speed parallel bit stream;
a multi-bit PMOS DAC configured to receive a first buffered bit stream;
a multi-bit NMOS DAC configured to receive a second buffered bit stream;
a first DC level-shifting predriver array coupled between the retimer and the PMOS DAC for receiving the high-speed parallel bit stream and the inverted high-speed parallel bit stream; and
a second DC level-shifting predriver array coupled between the retimer and the NMOS DAC for receiving the high-speed parallel bit stream and the inverted high-speed parallel bit stream;
wherein the first buffered bit stream is substantially synchronized with the second buffered bit stream.