TDC-GP30YD-F01 - Ultrasonic Flow Converter IC with Firmware | ScioSense
Teilenummer: TDC-GP30YD-F01 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $12.5 | $12,50 |
| 10 | $11.2 | $112,00 |
| 100 | $9.85 | $985,00 |
| 500 | $8.75 | $4.375,00 |
| 1.000 | $7.95 | $7.950,00 |
| 3.000 | $6.32 | $18.960,00 |
TDC-GP30YD-F01 Übersicht
A Time-to-Digital Converter (TDC) is a mixed-signal integrated circuit that measures the time interval between two events with picosecond-class resolution. In flow and ranging applications, the TDC measures the time-of-flight difference between upstream and downstream ultrasonic pulses in a pipe. The TDC-GP30 family places that TDC, an analog front-end for piezoelectric transducers, and a programmable CPU on the same silicon, reducing external component count versus discrete TDC + op-amp + MCU solutions.
Key features include an on-chip zero-cross detection comparator for accurate receive signal timing, automatic temperature compensation for offset drift, support for both 2-wire and 4-wire transducer topologies, and integrated flow-rate calculation firmware (the -F01 suffix denotes pre-loaded firmware). Per the ScioSense product page, the device consumes approximately 8.5 uA at an 8 Hz sample rate, making it suitable for battery-powered metering applications where multi-year battery life is required.
The device operates from a 3.6 V supply and exposes an SPI/IO interface to a host controller or external memory. Its high-resolution time measurement (sub-nanosecond) enables R400 to R800 ultrasonic water meters per industry accuracy classes. The 32-QFN exposed-pad package provides low thermal resistance for thermally stable measurements, which is critical for accurate flow conversion across temperature.
Typical applications include ultrasonic water meters (residential and commercial), ultrasonic heat meters, ultrasonic gas meters, and flow measurement modules for industrial IoT. The combination of integrated firmware and a 32-QFN footprint simplifies BOM and PCB layout.
When using this IC, ensure the exposed pad is soldered to a sufficient copper area for thermal stability, since temperature drift of the analog front-end directly impacts flow accuracy. Decouple VDD with at least one 100 nF ceramic capacitor placed close to the supply pin.
This page synthesizes distributor pricing, pin-compatible firmware variants, and practical flow-meter design guidance not found in the standalone datasheet.
Drop-in-Alternativen für TDC-GP30YD-F01 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
TDC-GP30YD
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TDC-GP30YA
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TDC-GP30YD-F01-1K
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TDC-GP30YD-F01-3K
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TDC-GP30YD-F01 Grenzwerte & elektrische Eigenschaften
| Funktion | Ultrasonic flow converter with integrated CPU and flow firmware |
| Topologie | 2-wire / 4-wire transducer support |
| Versorgungsspannung | 3.6 V |
| Quiescent Current (typical) | 8.5 uA at 8 Hz sample rate |
| Gehäuse | 32-pin QFN (5x5 mm) with exposed pad |
| Montageart | Surface Mount |
| Meter Accuracy Class | R400 to R800 (smart water meter) |
| On-chip TDC Resolution | Sub-nanosecond (typical TDC) |
| Zero-Cross Detection | Yes, configurable threshold (SHR_ZCD_LVL register) |
| Schnittstelle | SPI / GPIO host interface |
| Firmware Variant | Flow firmware pre-loaded (-F01) |
| RoHS-Status | Compliant |
| Manufacturer | ScioSense (formerly ams / acam-messelectronic) |
TDC-GP30YD-F01 Pin-Konfiguration
| Pin 1 | GPIO0 |
| Pin 2 | GPIO1 |
| Pin 3 | GPIO2 |
| Pin 4 | GPIO3 |
| Pin 5 | VDD |
| Pin 6 | VSS |
| Pin 7 | NC |
| Pin 8 | TRIG1 |
| Pin 9 | TRIG2 |
| Pin 10 | RCV1 |
| Pin 11 | RCV2 |
| Pin 12 | COMP_REF |
| Pin 13 | TEMP_SENSE |
| Pin 14 | NC |
| Pin 15 | NC |
| Pin 16 | NC |
| Pin 17 | NC |
| Pin 18 | NC |
| Pin 19 | XIN |
| Pin 20 | XOUT |
| Pin 21 | RESETn |
| Pin 22 | TEST |
| Pin 23 | GPIO4 |
| Pin 24 | GPIO5 |
| Pin 25 | GPIO6 |
| Pin 26 | GPIO7 |
| Pin 27 | VDD_IO |
| Pin 28 | SPI_CLK |
| Pin 29 | SPI_MISO |
| Pin 30 | SPI_MOSI |
| Pin 31 | SPI_CS |
| Pin 32 | INT |
Typische Anwendungen
TDC-GP30YD-F01 ist geeignet für 6 Anwendungs: Residential Ultrasonic Water Meter, Commercial / Industrial Ultrasonic Water Meter, Ultrasonic Heat Meter (Thermal Energy Meter), Ultrasonic Gas Meter, Ultrasonic Flow Measurement Module (IoT), Ultrasonic Liquid Level / Distance Sensing.
Residential Ultrasonic Water Meter
The TDC-GP30YD-F01 is purpose-built for residential ultrasonic water meters targeting R400 to R800 accuracy classes per the ScioSense product page. Its 8.5 uA current draw at 8 Hz sample rate and pre-loaded flow firmware let a single lithium cell power the meter for 10+ years without service. The integrated analog front-end drives 2-wire or 4-wire piezoelectric transducers directly, eliminating the external op-amp chain used in discrete TDC designs and shrinking BOM cost.
Empfohlen
Commercial / Industrial Ultrasonic Water Meter
For commercial R800 metering on larger pipe diameters, the TDC-GP30YD-F01's sub-nanosecond TDC resolution captures very small upstream/downstream time-of-flight differences at low flow rates. The on-chip zero-cross comparator (with register SHR_ZCD_LVL calibration per the datasheet) maintains receive-pulse timing accuracy across temperature drift. The 32-bit CPU plus flow firmware handles DN50 to DN300 pipe geometries without external DSP.
Empfohlen
Ultrasonic Heat Meter (Thermal Energy Meter)
Heat-meter designs pair ultrasonic flow with temperature sensors to compute thermal energy; the TDC-GP30YD-F01 handles the flow-time measurement while a host MCU reads PT1000 or PT500 sensors. The 8.5 uA budget and integrated zero-cross detection keep total system power low enough for battery operation across 6+ year calibration intervals. The 32-QFN exposed pad provides thermal coupling to the PCB for stable front-end operation.
Empfohlen
Ultrasonic Gas Meter
Although primarily marketed for water meters, the TDC-GP30YD-F01's TDC resolution and zero-cross detection make it suitable for ultrasonic gas meters in diaphragm-free designs. The integrated flow firmware supports flow algorithms needed for corrected volume calculation at varying gas compositions. Designers must validate compliance with regional gas-meter safety standards (e.g., ATEX) since the device itself is not certified for hazardous areas.
Empfohlen
Ultrasonic Flow Measurement Module (IoT)
IoT-focused flow-measurement modules (e.g., LoRaWAN or NB-IoT ultrasonic nodes) leverage the TDC-GP30YD-F01's low-power operation to extend battery life beyond what discrete TDC + MCU designs achieve. Combined with a wireless SoC and the integrated firmware, the module can transmit hourly flow updates for 10+ years. The 32-QFN footprint keeps the module small enough for retrofit installation on existing pipework.
Empfohlen
Ultrasonic Liquid Level / Distance Sensing
Beyond metering, the TDC-GP30YD-F01 can be repurposed for liquid-level measurement in tanks, where single-transducer time-of-flight determines fill height. The on-chip TDC provides the picosecond-class timing needed for centimeter-level resolution over 0.5 to 5 m ranges, and the integrated AFE simplifies the analog signal chain. Designers should write a custom flow/level algorithm since the pre-loaded -F01 firmware targets water-meter topology.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TDC-GP30YD-F01 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | TDC-GP30YD | TDC-GP30YA | TDC-GP30YD-F01-1K | TDC-GP30YD-F01-3K |
|---|---|---|---|---|---|
| Brand | ScioSense | ScioSense | ScioSense | ScioSense | ScioSense |
| Package | QFN-32 (5x5 mm) | QFN-32 (5x5 mm) - same | QFN-32 (5x5 mm) - same | QFN-32 (5x5 mm) - same | QFN-32 (5x5 mm) - same |
| Pre-loaded Flow Firmware | Yes (-F01) | No (blank) | No (blank, AFE variant) | Yes (same firmware) | Yes (same firmware) |
| Reel Quantity | 1K / 3K (variant dependent) | 1K | Dev board (not reel) | 1K | 3K |
| Supply Voltage | 3.6 V | 3.6 V | 3.6 V | 3.6 V | 3.6 V |
| Transducer Topology | 2-wire / 4-wire | 2-wire / 4-wire | 2-wire / 4-wire | 2-wire / 4-wire | 2-wire / 4-wire |
| Meter Accuracy Class | R400 to R800 | R400 to R800 | R400 to R800 | R400 to R800 | R400 to R800 |
Wichtigste Unterscheidungsmerkmale
- Pre-loaded flow firmware reduces time-to-market (vs. TDC-GP30YD (blank))
- Integrated analog front-end eliminates external op-amp chain (vs. TDC-GP21 (older generation))
- Sub-nanosecond TDC resolution supports R800 metering (vs. Discrete TDC + MCU design)
Designhinweise
Solder the exposed thermal pad of the QFN-32 package to a copper pour of at least 25 mm^2 on the top layer. Thermal coupling stabilizes the analog front-end offset, which directly affects zero-cross detection timing. Use a 100 nF X7R decoupling capacitor placed within 3 mm of the VDD pin, with a short, wide trace to the ground pour. Keep the SPI bus traces short and routed away from the analog TRIG and RCV lines.
Route TRIG1/TRIG2 and RCV1/RCV2 as differential pairs with controlled impedance (typically 50 ohm) to preserve ultrasonic pulse shape. Keep the analog ground plane unbroken beneath the AFE section and stitch vias around the package perimeter to reduce ground bounce during transducer switching. Place the crystal oscillator traces (XIN/XOUT) on the opposite side of the PCB from the TRIG lines to avoid coupling.
Do not leave TEST (pin 22) floating - tie it directly to ground for normal operation. The SHR_ZCD_LVL register must be calibrated to Vref periodically per the datasheet to compensate comparator offset; failure to recalibrate at temperature extremes will degrade flow accuracy. The pre-loaded flow firmware in -F01 expects a specific transducer topology; if you swap 2-wire to 4-wire, you must reconfigure the matching network and the firmware flow path.
Battery life depends heavily on the configured sample rate and the on-time of the transducer drivers. The 8.5 uA figure at 8 Hz sample rate assumes minimal transmit duty cycle; doubling the rate or transmit pulse width can roughly double the average current. For >10 year battery life targets, use a 3.6 V lithium thionyl chloride (LiSOCl2) cell and avoid any quiescent load from external circuitry between measurements.
Compliance-Informationen
RoHS and lead-free compliance per ScioSense product page. AEC-Q100 is not applicable (this is a metering IC, not an automotive-grade part). Halogen-free status was not explicitly stated in the verified data and is recorded as 'unknown'.
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