TDC-GPX - ScioSense

TDC-GPX Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the TDC-GPX?
  The recommended power-up sequence is to first apply the analog supply voltage (AVDD) and then the digital supply voltage (DVDD). This ensures that the analog circuitry is powered up before the digital circuitry.
• How do I optimize the performance of the TDC-GPX in noisy environments?
  To optimize performance in noisy environments, ensure proper PCB layout and grounding, use a low-pass filter on the input signal, and consider using a shielded enclosure. Additionally, adjust the input signal amplitude and offset to optimize the signal-to-noise ratio.
• What is the maximum input signal frequency that the TDC-GPX can handle?
  The maximum input signal frequency that the TDC-GPX can handle is 100 MHz. However, the device can also be used with higher frequencies by using an external frequency divider or a prescaler.
• How do I calibrate the TDC-GPX for optimal performance?
  Calibration involves adjusting the internal delay lines to compensate for process variations. This can be done using the built-in calibration mode, which involves applying a known input signal and adjusting the delay lines to achieve the optimal timing.
• What is the latency of the TDC-GPX, and how does it affect my system design?
  The latency of the TDC-GPX is typically around 10-20 ns. This latency should be considered when designing the system, as it may affect the overall timing and synchronization of the system.