Distinguishing and Characteristics of 3215 Active Crystal Oscillators and Passive Crystal Oscillators

Apr 03,2024
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The 3215 small-sized crystal oscillator is a relatively special size, which can be divided into 3215 active crystal oscillators and 3215 passive crystal oscillators. The 3215 passive crystal oscillator definitely thinks of FC-135. The FC-135 small-sized 3215 crystal oscillator is suitable for small portable communication devices of the same category. So, besides FC-135, what other 3215 passive crystal oscillators are there? What are the characteristics of these 3215 passive crystal oscillators? What are the models of Epson 3215 active crystal oscillators? Do these two types of 3215 crystal oscillators really have nothing in common?

Model differentiation and characteristic usage of 3215 Tianyuan crystal oscillator

Epson's 3215 passive crystal oscillator actually includes not only FC-135, but also FC-135R and FC-13A. The difference between FC-135 and FC-135R is that in the frequency range, the FC-135 crystal oscillator can support 32KHZ-77.5KHZ; The frequency point corresponding to FC-135R is only 32.768KHZ, 2, with a series positive FC-135 crystal oscillator and a series resistance of 70Q; FC-135R crystal oscillator series resistor 509. What are the differences between these two 3215 passive crystal oscillators in terms of packaging working temperature and other aspects. FC-13A can be considered an upgraded version of the FC-135 series, which is a 32.768KHz automotive standard crystal oscillator. Compared to the previous two 3215 passive crystal oscillators, the difference mainly includes two aspects: firstly, the working temperature has been increased from industrial grade 85 ℃ to automotive standard 125 ° C, which can also be called a wide temperature crystal oscillator or a high-temperature resistant crystal oscillator. Secondly, the surface material of the crystal oscillator has been upgraded from glass to all metal, which has improved its resistance to harsh working environments. FC-135 and C-135R are suitable for mobile phones, laptops, GPS, digital cameras, tablet meters, water meters, star meters, automotive electronics, industrial control systems, and more. The 3215 passive crystal 13A is suitable for automotive equipment such as navigation systems and ECU sub clocks.

Model differentiation and characteristic uses of 3215 active crystal oscillators

Epson's 3215 active crystal oscillator has one characteristic, which is also a 32.768kHz active crystal oscillator. 32.768kHz crystal oscillators are widely used in class timing modules, and currently, passive crystal oscillators are still the main type. But for customers with higher requirements, EPSON offers two types of products: 32768kHz active crystal oscillators and real-time clock modules. SG-3030CM and SG-3031CM are two small-sized 3215 active crystal oscillators among them. The SG-3030CM crystal oscillator is a 32.768 kHz active crystal oscillator launched by Epson. Under the premise of maintaining a current of 0.65A and high precision performance while operating at a voltage of 1.8V, the surface area of the crystal oscillator was reduced by half and the submission was reduced by 65%. It can provide greater energy for the miniaturization and low power consumption of electronic products. At the same time, this series of crystal oscillators can also control the oscillation amplitude through VO. Compared with the tuning fork crystal oscillator, this 3215 active crystal oscillator saves space due to its built-in crystal unit and oscillation circuit. Additionally, since the crystal oscillation characteristics are guaranteed during shipment, application engineers do not need to design oscillation circuits or adjust frequencies, thereby improving reliability. The SG-3031CM is similar to the SG-3030CM and belongs to the 32.768K active crystal oscillator. It operates at temperatures ranging from -40 ° C to+105 ° C. The SG-3031CM is compatible with CMOS chip technology and has an optimized CMOS IC design with a low power consumption of 0.65uA, which can effectively reduce current consumption. The built-in 32.768 kHz crystal unit enables efficient operation without adjustment. The power supply voltage range is from 1.2V to 5.5V, which is also a characteristic of SG-3031CM. Compared to 3030CM, SG-3031CM can operate at lower voltage. The SG3031CM 3215 active crystal oscillator has four welding pins, which can be used in industry, safety, smart meters, clocks for timing and sleep functions. Through the above text, I believe everyone can have a clear understanding of the classification of Epson 3215 oscillators, and also understand the models of passive and active 3215 oscillators, as well as their respective characteristics and uses.