What Does 30pf Mean for a Crystal Oscillator?
What does 30PF mean for a crystal oscillator
30PF for a crystal oscillator refers to an external capacitor of 30PF. Generally, the maximum load capacitance option for a passive crystal oscillator is 20PF. PF is a unit of capacitance, but it often appears in actual applications of passive crystal oscillators. Because the choice of capacitance can directly affect the start-up time, output frequency accuracy and frequency stability of a passive crystal oscillator.
In the crystal oscillator data sheet, PF refers to the load capacitance of a passive crystal oscillator, such as 20 in 20PF is its value. 20PF is one of the most common crystal oscillator loads. Passive crystal oscillators with different load capacitances generally need to match external capacitors of different values. Please note here that the load capacitance is not equal to the external capacitance.
In the passive crystal oscillator application solution for portable electronic products, a passive crystal oscillator with a smaller load capacitance is generally selected, because for passive crystal oscillators of the same package size and the same frequency, the smaller the load, the lower the energy consumption. For example, a passive crystal oscillator with a load capacitance of 7PF consumes less energy than a passive crystal oscillator with a load capacitance of 12.5.
It should be pointed out here that in the application of active crystal oscillator with square wave (CMOS) output, there is also a load (here called output load: Output Load) indicator, and the output load is generally 15PF by default. Further explanation, this means that the quartz crystal selected inside is an oscillation circuit formed with the oscillator IC based on 15PF. This is also the most common active crystal oscillator output load mode.
- |
- +1 赞 0
- 收藏
- 评论 0
本文由玄子转载自YXC Official Website，原文标题为:What does 30pf mean?，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。
相关推荐
3 Benefits of Connecting 2 Capacitors to a Crystal Oscillator
In this article YXC will introduce 3 benefits of connecting 2 capacitors to a crystal oscillator. What is a capacitor and How to choose a capacitor.
晶体（Crystal Unit）的规格和特性
晶体的重要的电气参数包括谐振频率、谐振模式、负载电容、等效电阻、静态电容、动态电感和电容、工作温度和驱动功率。本文，我们将详细解析每个关键性参数。
How Capacitors and Resistors Work with Crystal Oscillators
In the crystal oscillator circuit, there is a close interaction between the load capacitor and the crystal oscillator. The role of the resistor connected to the input and output of the crystal oscillator is to generate negative feedback to ensure that the amplifier works in the high-gain linear region. This article analyzes how capacitors and resistors work with crystal oscillators.
YXC automotive grade resonator 8MHz, Passive Crystal Oscillator 3225 Package for Car Bluetooth Module
Bluetooth module is a PCBA board with integrated Bluetooth function, which is used for short-distance wireless communication. It is divided into Bluetooth data module and Bluetooth voice module according to its function. Bluetooth module refers to a collection of basic circuits of chips with integrated Bluetooth function, which is used for wireless network communication.
How to Distinguish Active and Passive Four-pin Crystal Oscillators?
Crystal oscillators are usually divided into two types: passive crystal oscillators and active crystal oscillators. In this article YXC will introduce how to distinguish active and passive four-pin crystal oscillators.
YSO230LR OB2LID112-100M SMD-3225-100MHZ-2.5-3.3V-FS±50PPM-HCSL石英晶体振荡器产品规格书(YSO230LR OB2LID112-100M SMD-3225-100MHZ-2.5-3.3V-FS±50PPM-HCSL QUARTZ CRYSTAL OSCILLATOR SPECIFICATION)
本资料为深圳扬兴科技有限公司生产的石英晶体振荡器（QUARTZ CRYSTAL OSCILLATOR）的产品规格书。内容包括产品系列、料号、参数描述、电气参数、外观尺寸、丝印说明、载带规格、可靠性特性、回流焊参数、注意事项及联系方式等。
扬兴晶振 - 兆赫范围晶体单元,QUARTZ CRYSTAL OSCILLATOR,MHZ RANGE CRYSTAL UNIT,石英晶体振荡器,OB2LID112-100M,YSO230LR,YSO230LR 100.00000MHZ 2.5-3.3V FS±50PPM
The Precise Pulse of Low-Altitude Economy - Crystal Oscillator
As a key technology in the field of low-altitude economy, crystal oscillators will continue to provide a solid foundation for the development of low-altitude economy with their high precision and reliability. In this article, YXC recommends three temperature-compensated crystal oscillator (TCXO) products to meet the needs of different solutions.
Yxc Wide Voltage Active Crystal Oscillator, Frequency 15mhz, Package 7050, Working Voltage 3.3V, Used in Charging Piles
The main structure of the charging pile includes the pile body, charging module, display screen, connecting cable, account management module, safety protection device and other parts. According to different power supply methods, it can be divided into AC charging piles and DC charging piles. AC charging piles generally have low current, small pile body and flexible installation； while DC charging piles generally have high current, larger charging capacity in a short time, larger pile body and large occupied area (heat dissipation).
YXC Programmable Differential Crystal Oscillator YSO210PR Series, Frequency 155.52MHz, LVPECL Output, Used in Switches
A switch is a network device that is mainly used for forwarding electrical (optical) signals, allowing independent communication between any two network nodes connected to the switch.Switches are not limited to Ethernet applications, but also come in many forms such as telephone voice switches and fiber optic switches to meet different network needs.Switches require a stable clock signal to synchronize the transmission and processing of network data.
Tips for Crystal Oscillator Circuit Design, Essential Skills for Engineers!
As an indispensable signal transmitter in the clock circuit, the crystal oscillator is required for the microcontroller to operate normally. Therefore, the participation of the crystal oscillator is also indispensable in the design of electronic circuits. A good crystal oscillator circuit design can provide the best space utilization for electronics and play the greatest functional role.
Temperature Compensated Crystal Oscillator Is Also One of The Quartz Crystal Oscillators, Referred to as “temperature Compensated Crystal Oscillator“
What are the characteristics of temperature compensated crystal oscillator? Because electronic products in different fields have different demands for quartz crystal oscillators, and temperature-compensated crystal oscillators were developed to compensate for the instability of ordinary crystal oscillators at high temperatures. However, temperature-compensated crystal oscillators have There are many types of temperature compensated crystal oscillators, each with its own characteristics.
Introduction of the Crystal Resonator Structure
This article is an introduction to the crystal resonator structure. The crystal in the crystal resonator refers to quartz crystal, and its chemical formula is silicon dioxide SiO2.
电子商城
现货市场
授权代理品牌：集成电路
授权代理品牌：分立元件
授权代理品牌：接插件及结构件
授权代理品牌：部件、组件及配件
授权代理品牌：电源及模块
授权代理品牌：电子材料
授权代理品牌：仪器仪表及测试配组件
授权代理品牌：电工工具及材料
授权代理品牌：机械电子元件
授权代理品牌：加工与定制
我要提问
登录 | 立即注册
提交评论