The ideal clock choice for Epson FC3215AN smart water meter

In the current era of continuous promotion of smart city construction, smart water meters, as key equipment for digital transformation of water management, have a direct impact on the efficiency and accuracy of water resource monitoring and management due to their performance. Smart water meters can not only achieve accurate measurement of water consumption, but also improve water management efficiency through remote meter reading, real-time monitoring, leakage detection and other functions. The Epson FC3215AN low ESR compact 32.768kHz crystal, with a series of outstanding characteristics, has become an ideal choice for smart water meters, providing solid support for the stable operation of smart water systems.

The application advantages of Epson FC3215AN in smart water meters:

1. Low ESR design ensures long-term stable operation

The equivalent series resistance (ESR) of FC3215AN is only 35k Ω at room temperature (+25 ° C), and even in the extreme temperature range (-40 ° C to+105 ° C), the maximum ESR is only 60k Ω. The low ESR characteristic significantly reduces the power consumption and losses of the oscillation circuit. In practical applications, compared to traditional crystals, FC3215AN can significantly reduce the power consumption of smart water meters. According to testing, using the FC3215AN smart water meter, the battery life can be extended by 20% -30% under the same battery capacity, which means reducing the labor and material costs caused by frequent battery replacement and improving the stability and reliability of smart water meter operation.

2. Ultra small size, suitable for compact design

FC3215AN adopts a 3.2 × 1.5 × 0.9mm ultra small package with a thickness of less than 1 millimeter. Its compact design is particularly suitable for embedded devices with limited space such as smart water meters, which can be easily integrated into circuit boards, freeing up more layout space for other functional modules. In addition, its lead-free metal cover and seam sealing packaging technology enhance its resistance to mechanical impact and dust and moisture resistance, making it suitable for harsh outdoor or industrial environments.

3. Wide temperature range and high precision to cope with complex environments

Smart water meters are often exposed to extreme temperature environments, such as cold regions or near high-temperature pipelines. FC3215AN supports a wide operating temperature range of * * -40 ° C to+105 ° C and maintains a frequency tolerance of ± 20ppm (i.e. ± 0.002%) across the entire temperature range. This accuracy provides a reliable time reference for the real-time clock (RTC) of the water meter, ensuring the accuracy of measurement data and event recording. Combined with its frequency stability, the device can avoid the accumulation of timing errors even under temperature fluctuations.

4. Low power optimization to extend battery life

Smart water meters often use battery power, so low power consumption is one of the key requirements. FC3215AN achieves ultra-low current consumption and reduces oscillation start-up time through low ESR and optimized circuit design, thereby extending the service life of water meters. It is particularly suitable for the sub clock system of low-power microcontrollers (MCUs).

5. High precision frequency stability: ensuring measurement accuracy

The core function of a smart water meter is to accurately measure water usage, which requires its clock signal to have high stability. The frequency range of FC3215AN is 32.768kHz, and the allowable frequency deviation is controlled within ± 20 x 10-6 in an environment of+25 ° C ± 5 ° C. This high-precision frequency stability ensures accurate pulse counting of smart water meters during long-term operation, effectively avoiding measurement errors caused by clock deviations. Even in complex usage environments such as temperature fluctuations, electromagnetic interference, etc., FC3215AN can still maintain stable frequency output, providing a reliable clock reference for smart water meters, ensuring the accuracy of water resource measurement, and providing reliable data support for water department's fee management and water resource scheduling.

6. Support remote meter reading and data transmission

The smart water meter achieves remote meter reading function through wireless modules, and the high precision and stability of FC3215AN (X1A000161) can provide reliable time reference for these modules, ensuring the accuracy and timeliness of data transmission.