ScioSense AS6031 SoC for Ultrasonic Flow Meters

ScioSense AS6031 SoC for Ultrasonic Flow Meters is an ultrasonic flow converter for the next generations of ultrasonic water and heat meters. The AS6031 is highly integrated and based on the TDC-GP30 platform. It uses the same high-performant frontend for driving the transducers and processing the receive signal to extract the time of flight information. An additional programmable amplifier allows handling weaker receive amplitudes. Additional features for phase-modulated hit identification give even more robustness to the first hit level detection. The integrated low-power CPU can use 4k of NVRAM and 4k of ROM code to do the flow calculation on chip.

Features

  • High performance + ultra-low power 32-Bit CPU
  • 120 x 32 bit NVRAM (non-volatile RAM) for user firmware parameter & data
  • 3968 x 8 bit NVRAM (non-volatile RAM) for user firmware program code
  • 4k x 8 bit ROM for system task code and special flow library code
  • Advanced high-precision analog front-end for transducer frequencies of 50kHz to 4MHz at 2.5V to 3.6V drive voltage
  • Integrated PGA, gain 2 to 30 @ 1MHz
  • First hit level and phase detection
  • Amplitude measurement
  • Up to 31 zero crossing measurements
  • Precision time-to-digital converter and low-noise front-end with < 50ps single shot with good 1MHz transducers on a DN20
  • Ultra-low power consumption
  • SPI serial interface
  • General Purpose I/O Unit incl. pulse interface and 2-wire master interface (I2C like)
  • Supply voltage 2.5V to 3.6V
  • 3.0V to 3.6V NVRAM store only
  • Operating temperature -40°C to +85°C
  • 7mm x 7mm QFN48 package

Applications

  • Water meters for utilities
  • Industrial water meters
  • Heat meters
  • Gas meters
  • Volume counters

Block Diagram

Block Diagram - ScioSense AS6031 SoC for Ultrasonic Flow Meters

ScioSense AS6031 SoC for Ultrasonic Flow Meters