How to Distinguish the Position Direction of SMT Crystal Oscillator?
With the rapid development of information technology, miniaturized products are more and more popular. The same is true in the crystal oscillator industry. As more and more electronic devices choose to use small, thin, and thin chip crystal oscillators, the range of applications for plug-in crystal oscillators is decreasing. Today Hui Yuan will discuss with you how to distinguish the position direction of SMT crystal oscillator.
What Is an SMT Crystal Oscillator?
Crystal vibration is one of the components of quartz crystal. Quartz crystal resonators, quartz crystal oscillators, and quartz crystal filters are all quartz crystal components. Quartz crystals are piezoelectric crystals. When a piezoelectric crystal is squeezed or stretched in a particular direction, its two ends generate different charges. According to the different effects, it can be divided into positive piezoelectric effect and negative piezoelectric effect. SMT crystal oscillator is mainly used in the clock module in the circuit to provide the corresponding clock reference, the common application is mainly embedded design, such as FPGA, DSP, and other development boards.
What Is the Difference Between a passive crystal oscillator and an active crystal oscillator?
Common SMT crystal oscillators can be divided into passive and active crystal oscillators. Passive crystal oscillators usually have no direction, but have one pin. How do you distinguish passive crystal oscillators from active crystal oscillator pins?
The 2-pin SMT crystal oscillator must be passive, the 4-pin SMT crystal oscillator must be passive or active, and the 4-pin SMT crystal oscillator must be active.
How to Distinguish the Position Direction of SMT Crystal Oscillator?
Passive crystal oscillators usually have no direction. For four legs, only two are functional feet, with the other two dangling for GND connections. In the case of an active crystal oscillator, the active crystal oscillator is usually imprinted above the direction of the footnote (the lower left corner of the point). Common 4-pin SMT crystal oscillator packages include 1.6 * 1.2mm, 2.0 * 1.6mm, 2.5 * 2.0mm, 3.2 * 2.5mm, 3.0 * 1.5mm, 5.0 * 3.2mm, 7.0 * 5.0mm, etc.
- +1 Like
- Add to Favorites
Recommend
- There are Two Main Types of Crystal Oscillators: Active Crystal Oscillators and Passive Crystal Oscillators
- Tips for Crystal Oscillator Circuit Design, Essential Skills for Engineers!
- Does a Passive Crystal Oscillator Have a Direction?
- How to Prevent the Bad Phenomenon of Crystal Vibration?
- Working Principle of Crystal Resonator
- Child Presence Detection-Aker C1E Crystal Series Meet the Accuracy Requirements for CPD Applications
- The Difference between Active Crystal Oscillators and Passive Crystal Oscillators
- Quartz Crystal Storage Standard
This document is provided by Sekorm Platform for VIP exclusive service. The copyright is owned by Sekorm. Without authorization, any medias, websites or individual are not allowed to reprint. When authorizing the reprint, the link of www.sekorm.com must be indicated.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
