AS6040 ultrasonic flow converter

AS6040 Ultrasonic Flow Converter

UFC Solution for Gas & Water Meters

The AS6040 system is made of four major blocks: supervisor, frontend, post processing and interface. The supervisor manages all tasks and is the master of the whole system, making the AS6040 autonomous.The frontend integrates a high-voltage driver, an integrated PGA and an offset-stabilized comparator in the receive path, a precision TDC for the time-of-flight measurement, amplitude measurement as well as an RDC unit for temperature measurement. In flow meter mode, the 32-bit CPU in combination with 4k of ROM code and 4k of NVRAM does the post processing for flow calculation. In time conversion mode the CPU is not active and the chip sends the raw time-of-flight data. It communicates to an external microcontroller via SPI interface. By means of the integrated pulse interface the AS6040 can run also in stand-alone mode.

The analog front-end is supported by an integrated charge pump to provide a programmable fire voltage in the range from 6 V o 17 V with a frequency from 50 kHz up to 1 MHz. The integrated PGA gain factor can be adjusted from 2 to 250. The first hit level detection starts with a programmable offset up to 220mV. After this is set down to 0 mV, the AS6040 can measure up to 31 zero crossings within a single receive burst. The front end achieves in single shot less than 300 ps rms noise single shot with good 500kHz transducers. The first-hit pulse width information and the amplitude can be used to regulate the first hit level, but also to get information about situations with bubbles or empty tubes. It comes in a compact QFN48 package and allows compact designs thanks to a small number of external components.


Applications

  • Residential Gas Meters
  • Industrial Gas Meters
  • Clamp-on Water Meters
  • Volume Counters
AS6040-Block-Diagram-930x532.jpg

DescriptionVersionSizeDownload
Datasheet AS6040 Vol. 1:
Ultrasonic Flow Meter for Gas & Water Meters
V0.11.2MBAS6040-sc-000854-ds-2-1.pdf
Datasheet TDC-GP30 Vol. 1:
System-Integrated Solution for Ultrasonic Flow Meters General Data and Frontend Description
V0.11.2MBDB_GP30_Vol1.pdf
Datasheet TDC-GP30 Vol. 2:
System-Integrated Solution for Ultrasonic Flow Meters CPU, Memory and Firmware
V0.01.3MBDB_GP30_Vol2.pdf
Datasheet TDC-GP30 Vol. 3:
System-Integrated Solution for Ultrasonic Flow Meters: User Manual
V0.01.3MBDB_GP30_Vol3.pdf
Datasheet TDC-GP30 Vol. 4:
Firmware, Memory and ROM Overview: User Manual
V0.52MBDB_GP30_Vol4_en.pdf
Datasheet TDC-GP22 Eval System:
Evaluation System for TDC-GP22
V0.25.3MBDB_GP22-EVA_en.pdf
Datasheet TDC-GP22:
Universal 2-Channel TDC-GP22 dedicated to Ultrasonic Heat & Water Meters
V0.94MBDB_GP22_en.pdf
Datasheet TDC-GP21 Eval System:
Evaluation System for TDC-GP21
V0.05.3MBDB_GP21-EVA_en.pdf
Datasheet TDC-GP21:
Universal 2-Channel TDC-GP21
V1.64MBDB_GP21_en.pdf
Development Support TDC-GP30:
Eval Kit Manual for TDC-GP30
V1.02.5MBGP30Y-EVA-KIT.pdf
Development Support TDC-GP30:
Demo Kit Manual for TDC-GP30
V1.03MBGP30-DEV-KIT.pdf
Development Support TDC-GP22:
Evaluation System for TDC-GP22 DEMO KIT
V0.02.4MBDB_GP22-DEMO_en.pdf
Development Support TDC-GP22:
Evaluation System for TDC-GP22
V0.22.8MBDB_GP22-EVA_en.pdf
Development Support TDC-GP21:
Evaluation System for TDC-GP21
V0.05.3MBDB_GP21-EVA_en.pdf
DescriptionVersionSizeDownload
Application Note:
TDC-GP30
External circuit for gas meters
V1.012MBGP30 Application note Gas Meter.pdf
Application Note:
TDC-GP30-F01
Scaling calibration coefficients by 2-point calibration
V1.011.5MBGP30-F01 Application note 2pt Calibration.pdf
Application Note 032:
Ultrasonic Water & Heat Metering with the TDC-GP22
V1.21.5MBAN032_en.pdf
Application Note 029:
Ultrasonic Heat Metering with the TDC-GP21
V1.13.6MBAN029_en.pdf
DescriptionVersionSizeDownload
Screencast TDC-GP30-F01:
2-Point Calibration with ams/acam Firmware Scaling calibration coefficients by 2-point calibration
9MBGP30_SUMTOF_Cal.zip
DescriptionVersionSizeDownload
Software AS6040
Evaluation Software for UFC AS6040
V12.94MBUFCEvaluationSoftware v1.0.0.zip
Software TDC-GP30 / TDC-GP30-F01
Software package for GP30 Demo Kit
V1.6.0204MBacam_GP30-DEMO-KIT.zip
Software TDC-GP30-F01
Calibration Engine for GP30
V5.0169MBacam_GP30y_Calibration_Installer.zip
Software TDC-GP30-F01
Open part of the acam Firmware A1.A2.11.03
A1.D2.x259KBacam_FW_A1.A2.11.XX.zip
Software TDC-GP30-F01
Open part of the acam Firmware A1.D2.11.04
A1.D2.x35KBacam_FW_A1.D2.11.04.zip
Software TDC-GP22:
Software package for GP22-EVA-KIT
V1.9111MBCD-GP22-EVA-XP-WIN7.zip
Software TDC-GP22:
STM32 µC Sample code
34kGP22_main_AN032.c
Software TDC-GP21:
Software package for GP21-EVA-KIT
V3.9104MBCD-GP21-EVA-XP-WIN7.zip
Software PICOPROG V3.0(V2.0):
Driver Installer Stand Alone
R125MBPicoProg_v2_Driver_Installer_Stand-Alone_r11.zip
TypePart numberPackageRoHS compl.Shipping package
TDC-GP22:
TDC-GP22MNR 1949QFN32YesTray
TDC-GP22MNR 1950QFN32YesTape & Reel (5k)
GP22-EVA-KITMNR 1951SystemYesBox
GP22-DEMO-KITMNR 1979SystemYesBox
TDC-GP21:
TDC-GP21MNR 1839QFN32YesTray
TDC-GP21MNR 1720QFN32YesTape & Reel (3K/5K)
GP21-EVA-KITMNR 1781SystemYesBox
TDC-GP2:
TDC-GP2MNR 1058QFN32YesTray
TDC-GP2MNR 1480QFN32YesTape & Reel (2k)
TDC-GP1:
TDC-GP1MNR 278TQFP44YesTray
TDC-GPX:
TDC-GPXMNR 975TQFP100YesTray
TDC-GPX-FGMNR 1089TFBGA120YesTray

ADDITIONAL INFORMATION