TDC
MS1022
-
In supply
High precision Time Measurement (TDC) circuit
Datasheet Download
Overview
The MS1022 is high-precision time measurement circuit, which integrates analog comparator, analog switch and schmitt trigger and so on, thus greatly simplifying peripherals. In addition, the first wave detection function makes the MS1022 improve the anti-interference ability. According to read the relative width of first return pulse, user can get the strength indication of received signal. And by the indication, many fault conditions can be judged, such as ultrasonic transducer fault, increased tube coverings and bubbles in water. One measurement for ultrasonic time difference (forward flow and reverse flow) and data-read can be performed according to command, which greatly reduces software operation and electricity consumption.
Key Features
- Measurement Range 1:
- ⚫ Dual-Channel, Single-Precision Mode 90ps
- ⚫ Single-Channel, Dual-Precision Mode 45ps
- ⚫ Measurement Range 3.5ns(0ns) to 2.4μs
- ⚫ 20ns Minimum Pulse Interval, Receive Four Pulses at most
- Measurement Range 2:
- ⚫ Single-Channel, Single-Precision Mode 90ps
- ⚫ Dual-Precision Mode 45ps, Quad-Precision Mode 22ps
- ⚫ Measurement Range 500ns to 4ms (at 4M high-speed clock)
- ⚫ Can Measure Three Pulses, Process Three Data Automatically
- Analog Input Circuit:
- ⚫ First Wave Detection
- ⚫ Can Measure Pulse Width of the First Wave
- ⚫ Internal Integrated Analog Switch for Input Select
- Temperature Measurement:
- ⚫ Two or Four Temperature Sensors, PT500/PT1000 or Higher
- ⚫ Internal Integrated Schmitt Trigger
- ⚫ Ultra-low Power Dissipation (0.08μA every 30 seconds)
Key Features
Ultrasonic heat meter, water meter
Laser ranging
