TDC-GP21 TRA

Sensor And Detector Interfaces Overview

The TDC-GP21 TRA is a digital time-to-digital converter (TDC) module designed for ultrasonic flow metering applications. It integrates the TDC-GP21 core with an EFM32 microcontroller to form a low-power acquisition circuit. The device features a QFN32 package and includes built-in analog signal processing components such as switches, chopper-stabilized comparators, and Schmitt triggers. It supports dual supply voltages for core and I/O operations and provides a 32.768 kHz clock output for external MCU synchronization.

Sensor And Detector Interfaces Feature Summary

• Integrates ultrasonic signal processing analog circuits including low-noise chopper-stabilized comparators and analog switches
• Includes EEPROM storage for system ID and configuration registers
• Provides direct interface capability for temperature sensors via integrated Schmitt triggers
• Generates a 32.768 kHz clock signal for external microcontroller synchronization

Sensor And Detector Interfaces Applications

• Ultrasonic heat metering systems
• Ultrasonic flow measurement devices
• Low-power acoustic signal acquisition modules

Sensor And Detector Interfaces Procurement Notes

Verify the specific TRA suffix designation against official manufacturer documentation to confirm pinout or packaging variations. Ensure compatibility with the required dual-supply voltage configuration and check for any specific moisture sensitivity level requirements during handling. Confirm that the integrated EFM32 controller meets the target application's processing needs.

Sensor And Detector Interfaces Selection Notes

Select this component when high-precision time-of-flight measurement is required for ultrasonic applications. The integrated analog front-end reduces external component count compared to discrete solutions. Consider the thermal performance of the QFN32 package and ensure adequate decoupling for the dual-voltage power domains to maintain signal integrity.

Sensor And Detector Interfaces Part Context

This module combines ACAM's TDC-GP21 digital time converter with Silicon Labs' EFM32 microcontroller. It serves as a specialized solution for metrology applications requiring precise timing measurements. The integration simplifies design by embedding necessary analog conditioning and non-volatile memory directly into the acquisition chain.

Sensor And Detector Interfaces Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.