TDC-GPX

Sensor And Detector Interfaces Overview

The ScioSense TDC-GPX is an ultra-high performance 8-channel time-to-digital converter designed for precision time interval measurement. It supports multiple operational modes including I-Mode with 8 channels at approximately 81 ps resolution, and G-, R-, or M-Modes offering 2 channels with resolutions down to 10 ps. The device features a 5.5 ns pulse-pair resolution with 32-fold multi-hit capability, supporting peak rates of 182 MHz. It operates on core voltages between 2.3 V and 3.6 V and includes a resolution adjust unit for temperature compensation. Data output is provided via a 28-bit or dual 16-bit asynchronous bus.

Sensor And Detector Interfaces Feature Summary

• Multi-mode operation allowing selection between high channel count (I-Mode) and ultra-high resolution (M-Mode).
• Resolution adjust mode utilizing a Phase Locked Loop to maintain quartz-accurate timing stability across temperature variations.
• Support for differential LVPECL inputs alongside standard TTL inputs for flexible signal interfacing.
• Integrated hit FIFOs with empty and load flags to manage data throughput and prevent overflow.

Sensor And Detector Interfaces Applications

• Precision time interval measurement in scientific instrumentation.
• Time-of-flight (ToF) distance sensing applications.
• LIDAR systems requiring high-resolution temporal discrimination.
• Particle physics experiments involving coincidence detection.

Sensor And Detector Interfaces Procurement Notes

Verify the specific package variant required, as the component is available in TQFP100 and TFBGA120 configurations. Confirm that the design accommodates the necessary power supply decoupling for the core and I/O rails. Ensure the host interface logic matches the asynchronous 28-bit or 16-bit data bus specifications defined in the electrical characteristics.

Sensor And Detector Interfaces Selection Notes

Select I-Mode if eight simultaneous stop channels are required with moderate resolution. Choose G-, R-, or M-Mode for applications demanding higher temporal precision on fewer channels. Verify that the reference clock frequency aligns with the desired bin size calculation. Ensure the input signal levels match the specified TTL or LVPECL requirements for the chosen mode.

Sensor And Detector Interfaces Part Context

This component was originally developed by acam-messelectronic GmbH and subsequently transferred through various entities including ams AG before being acquired by ScioSense. The technical documentation retains validity from its original publication despite the change in ownership. It belongs to the TDC-GPX series of specialized data acquisition converters.

Sensor And Detector Interfaces Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult ScioSense directly for current portfolio equivalents or legacy support options.