AUTHOREA
Log in
Sign Up
Browse Preprints
LOG IN
SIGN UP
Please note
: Importing new articles from Word documents is currently unavailable. We are working on fixing this issue soon and apologize for any inconvenience.
yuan li
Public Documents
1
Fully Integrated APPC and PCD for DToF Driver with high-resolution On-Chip Oscillosco...
yuan li
and 3 more
August 09, 2023
This paper presents a voltage-mode direct time-of-flight (DToF) driver with high resolution auto-peak-power controller (APPC) and peak-current detector (PCD), utilizing on-chip oscilloscope (OCO) technology. The OCO supports both optical input for APPC and electrical input for PCD. The optical input detects laser diode (LD) peak power through photodiode (PD) first, and then feeds back to the boost converter to adjust laser diode supply voltage (LDVCC) to reach the target peak optical power. The electrical input detects the peak current of the LD to prevent the APPC from adapting to excessive output caused by the abnormal operation of the PD or LD. The X-coordinate of OCO has an 11-bit precision. It can detect pulse widths ranging from 500 ps to 10 ns. The test result shows that, the variation of optical power can be controlled within 2\% in the temperature range of 25-85 ℃ with APPC function.