Changsha Purple Horn E-Commerce Co., Ltd.
| Description | QFN-32(5x5) Ultrasonic Receivers, Transmitters RoHS |
| Mfr. Part # | MSK1922 |
| Package | QFN-32(5x5) |
| Model Number | MSK1922 |
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Product Specification
| Description | QFN-32(5x5) Ultrasonic Receivers, Transmitters RoHS | Mfr. Part # | MSK1922 |
| Package | QFN-32(5x5) | Model Number | MSK1922 |
The MSK1922 is a high-precision time measurement circuit that integrates analog comparators, analog switches, and Schmitt triggers, significantly simplifying peripheral circuitry. It features a first echo detection function for enhanced anti-interference capabilities. By reading the relative width of the first echo pulse, users can receive a signal strength indication, useful for identifying anomalies like abnormal ultrasonic transducers, increased wall coverings, or air bubbles in water. The device supports ultrasonic time-of-flight measurements (flow and reverse flow) and data reading via commands, reducing software operations and power consumption.
| Feature | Specification | Details |
| Measurement Range | Range 1 | Single-channel single-precision mode: 90ps; Single-channel double-precision mode: 45ps |
| Range 2 | 3.5ns (0ns) to 2.4s; Minimum pulse interval, up to 4 pulses received | |
| Range 3 | 500ns to 4ms (at 4M high-speed clock) | |
| Precision | Single-channel single-precision mode | 90ps |
| Double-precision mode | 45ps | |
| Quadruple-precision mode | 22.5ps | |
| Pulse Reception | Range 2 | Can measure 3 pulses, automatically process 3 data points |
| First Wave Detection | Can measure the pulse width of the first wave | |
| Temperature Measurement | Sensors | 2 or 4 temperature sensors (PT500/PT1000 or higher) |
| Functionality | Supports temperature measurement | |
| Analog Input Circuit | Components | Integrated analog switches for input selection, integrated Schmitt trigger |
| Power Consumption | 0.08A (when measuring every 30 seconds) | |
| Application Scope | Ultrasonic heat meters, water meters, Laser ranging | |
| Package | QFN-32(5x5) | |
| Ordering Information | MSK1922, QFN-32(5x5), 5000PCS | |
| Pin Description | XIN/XOUT | High-speed crystal oscillator input/output |
| VIO | Port power supply | |
| Control Registers | Configuration Register 0 | Settings for fire port pulse count, clock division, calibration cycles, crystal startup time, temperature measurement ports, etc. |
| Configuration Register 1 | Settings for ALU calculation results, fast initialization, stop channel pulse count, start/fire pin function selection. | |
| Configuration Register 2 | Interrupt trigger settings, edge sensitivity for channels, delay values for stop pulses. | |
| Configuration Register 3 | Settings for auto-calculation of pulse measurements, first wave detection, overflow handling, measurement range 2 overflow time, relative delay for stop pulses. | |
| Configuration Register 4 | Settings for delay of third stop pulse, pulse width measurement enable/disable, first wave detection edge sensitivity, comparator offset. | |
| Read Registers | Result Registers (RES_0 to RES_3) | Measurement results (fixed-point, 16-bit integer, 16-bit fractional). Negative values only in Measurement Range 1. |
| Status Register (STAT) | Indicates temperature measurement short/open circuit, received pulse counts, coarse count overflow, TDC unit overflow, result address pointer. | |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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