CM200C32768AZFT

Series:	CM200C
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	kHz Crystal (Tuning Fork)
Frequency:	32.768kHz
Frequency Stability:	--
Frequency Tolerance:	±30ppm
Load Capacitance:	12.5pF
ESR (Equivalent Series Resistance):	50 kOhms
Operating Mode:	Fundamental
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	4-SOJ, 5.50mm pitch
Size / Dimension:	0.311" L x 0.146" W (7.90mm x 3.70mm)
Height - Seated (Max):	0.098" (2.50mm)

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Introduction

Crystals are important materials used in many applications and devices, such as watches, clocks, semiconductors and integrated circuits. The CM200C32768AZFT is a piezoelectric quartz crystal from Murata, a Japanese company which has been manufacturing reliable, high-quality crystals for over a 100 years. This article will discuss the applications and working principle of the CM200C32768AZFT.

Applications

The CM200C32768AZFT is a quartz crystal with an operating frequency of 20.000 MHz and an overtone order of 3rd. It has a +/- 10 ppm frequency tolerance and a 45.000 Ohm load capacitance. Its small size (2.1x1.5x0.56mm), low capacitance and high frequency make it ideal for ultra-small, high-frequency applications such as RF modules, cellular phones, Bluetooth transceivers, GPS receivers, medical equipment and VCOs.The CM200C32768AZFT is highly stable and reliable. It is resistant to humidity, pressure and temperature changes, making it suitable for long-term operational stability in harsh environmental conditions. The crystal is also resistant to voltage overloads and noise, ensuring reliable and consistent performance.

Working Principle

The CM200C32768AZFT crystal operates on the principle of the piezoelectric effect. When the crystal is subjected to an electrical voltage, it produces mechanical strain. This strain causes the crystal lattice to vibrate with a frequency determined by the crystal’s physical properties. This vibratory motion generates an electrical signal at its resonant frequency, which is proportional to the electrical voltage applied. The resonant frequency of the crystal is dependent on several factors, such as the type and size of the crystal, its shape, within tolerances, and the mechanical stress applied. This makes it possible to determine the frequency of the crystal by altering the applied voltage. By controlling the voltage, it is possible to precisely set the resonant frequency of the crystal, creating a reliable and highly stable oscillator. The CM200C32768AZFT crystal utilizes a unique mechanical design to obtain excellent frequency characteristics in ultra-small applications. By utilizing advanced production technology and perfecting the exacting design criteria, Murata has created a crystal that can provide excellent resonant frequency stability even in the most demanding applications.

Conclusion

The CM200C32768AZFT crystal from Murata is a small, highly stable quartz crystal designed for use in applications such as RF modules, cellular phones, Bluetooth transceivers, GPS receivers, medical equipment and VCOs. Its small size, low capacitance and high frequency make it ideal for ultra-small, high-frequency applications. The crystal operates on the principle of the piezoelectric effect and its resonant frequency is determined by the crystal’s physical properties. Murata’s advanced production technology and perfecting the exacting design criteria has created a crystal that can provide excellent resonant frequency stability even in the most demanding applications.

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