Crystal oscillator is an essential electronic component in many electronic products, with a wide range of types and standards available for selection. Different types of crystal oscillators have different parameters and are used in different fields, playing different functional roles.
There are two frequency series for crystal oscillators, one is the MHZ series and the other is the KHZ series. For some specific application scenarios, a large part of crystal oscillators have formed dedicated standards. The following are the products used for different crystal oscillator frequencies.

Home appliance field
Color TV: 443MHz (PA system), 3.58MHz (NSC system), 8.86MHz (for integrated circuits such as TDA3560 and TDA3565), etc.
Remote control: 455KHz, 480KHHz, 429MHz, 500MHz, and 560MHz crystal oscillators.
Microprocessors: several crystal oscillators including 1MHz, 4MHz, 4.5MHz, 8MHz, and 10MHz.
Air conditioning: 32.768KHZ, 4.000MHz, 4.194304MHZ, etc.
Video recorder: several specifications of crystal oscillators including 32KHZ, 3.58MHz, 4MHz, 4.13MHz, 443MHz, etc.
DVD player (CD, DVD, etc.): 3.58 MHZ、4.19MHZ、4.236MHz、4.43MHZ、8MHZ、8.4672MHz、12MHz、14.31818MHz、16.9344MHz、17.7344MHz、40.5MHZ Waiting for various specifications of crystal oscillators.

Mobile communication field
Mobile phone: mostly 24MHz, NFC technology uses crystal oscillators such as 13.56MHz and 27.120MHz.
Interphone: 12MHZ, 16MHZ, 26MHZ, 22.1184MHZ, 27.12M crystal oscillators, etc.
Computer motherboard: 14.318MHz, 32.768KHz, 24.576MHz sound card crystal oscillator, 25MHz network card crystal oscillator, etc.
Keyboard, mouse, camera, Bluetooth, etc.: 6-12MHz crystal oscillators are mostly used.

Network communication field
Set top box: 13.5MHz, 27MHz, 54MHz and other crystal oscillators.
Router: 12MHz, 16MHz, 26MHz, 40MHz and other crystal oscillators.
Network communication: 12MHz, 16MHz, 26MHz, 32.768KHZ, etc.

Automotive electronics field
Driving recorder, intelligent rearview mirror, car audio system, etc.: AEC-Q200/100 automotive grade 8MHz, 16MHZ, 24MHZ, 25MHZ, 27MHZ and other specifications of crystal oscillators.

Security monitoring field
Security monitoring equipment, etc.: 12MHZ, 16MHZ, 24MHZ, 27MHZ, 40MHZ, 37.125MHZ, 32.768KHZ and other crystal oscillators.