The LTDC-X3 offers single-shot resolution of up to 20ps_rms, can measure both the rising and falling edge of a pulse on both Stop channels. To meet LiDAR systems’ requirement for a high sampling rate, ScioSense has equipped the LTDC-X3 with a high-speed quad SPI interface transferring output data at a rate of up to 50MHz or 200MB/s. The device can operate with an interval between pulses of as little as 5ns.

The LTDC-X3 can also be configured to register up to four Stop triggers for each Start pulse, enabling a LiDAR sensor to detect reflections from multiple objects in the field of view. By taking advantage of the combination of ultra-high precision and multiple Stop triggers, a LiDAR system can generate a detailed and accurate picture of the complex environment through which a drone or robot might navigate.

As well as providing the core time measurement function, the LTDC-X3 operates as an integrated sensor interface, providing important features such as:

• Start pulse generator with configurable phase noise, for trigger signals to an external laser diode driver
• Stop input comparator compatible with an LVDS interface
• On-chip calculation of Stop-Start time differences and the Stop pulse width