Time digit converter
Keywords:
Time digit converter
Product Overview
A time-to-digital converter is an instrument that can identify the timing of events and convert analog signals into digital signals. It is widely used in scientific research fields such as statistical analysis of post-pulse distributions in lasers, measurement of particle collision times, quantum optics, quantum key distribution, optical detection, and lidar ranging.
The LX-TDC200 is a compact, easily expandable PCI-E board-mounted TDC that supports three operating modes: channel-to-channel difference measurement (with the start channel freely selectable), pulse width measurement, and pulse interval measurement. It features per-channel pulse auxiliary counting capability and boasts ultra-high precision resolution, multi-channel output, and high data conversion rates.
Product Parameters
| Channel characteristic parameters | |
| Counting Channel Interface | 55MC |
| Number of counting channels | 4 (expandable to 8/16/32 channels) |
| Reference Clock Input/Output Interface | 55MC |
| Input signal voltage standard | -5.00 V ~ +5.00 V (trigger threshold is adjustable) |
| Trigger edge | Rising/falling edge |
| Trigger pulse width | >1 ns |
| TDC characteristic parameters | |
| Time resolution is optional. | 2 ps / 4 ps / 10 ps..50 ns |
| Time jitter | <15 ps rms |
| Instantaneous saturation count rate | 50 × 10^6 cps |
| Dead time | 20 ns |
| Total event transmission rate | 50 M Events/s |
| Reference clock input/output | 10 MHz |
| Measurement mode | Difference mode (start-stop) / Pulse width measurement / Pulse interval measurement / Character count |
| Maximum count value | 2^32 |
| Histogram characteristic parameters | |
| Maximum range | 32 ms |
| Minimum time resolution | 2 ps |
| Acquisition Display Mode | Frequency display / Continuous statistics |
| Collection Time Range | 1 ~ 604,800 s (in continuous statistics mode) |
| Operating characteristic parameters | |
| Communication interface | PCI-E × 8 |
| Computer Configuration Requirements | CPU > 1 GHz, Memory > 512 MB |
| Operating system | Windows 7 / 10 |
| Power consumption | 20 W |
Scope of application
● Statistical distribution of post-pulse signals from the laser
● Particle collision time
● Time-Resolved Single Photon Counting
● Quantum Key Distribution and Quantum Optics
● Fluorescence Lifetime and Fluorescence Spectroscopy
● Optical detection and LiDAR ranging
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