Reviews Ceramic Crystal Oscillator

Adafruit 2214 12 MHz Crystal + 20pF capacitors

This is an 32.768 KHz 32768HZ Crystal Oscillator 2 x 6 mm.
Widely used in TV , automobile electronics , pc cards , electronical meter , DVD , MP3 , etc..
Size(Each One) : 2 x 6 mm/ 0.08" x 0.24"(D*H).
Package Included:30 Pcs A32.768 KHz 32768HZ Crystal Oscillator 2 x 6 mm(If the number of products received is incorrect, please contact us . we will refund or give you a replacement).
We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution..

DS3231 16-pin memory chips - AT24C32 ,extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal..
Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line..
Provides two configurable alarm clock and a calendar can be set to a square wave output. Address and data are transferred serially through an I2C bidirectional bus..
Highly accurate RTC completely manages all timekeeping functions.The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping..
A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output. In addition, RST pin is monitored as generating a μP reset..

【OPTIMAL PERFORMANCE】OCESTORE premium upgrade Frequency Counter Tester Meter based on PICmicrocontroller that can measure frequency of 1 Hz to 50 MHz,designed to measure the oscillation frequency of the most crystal oscillators..
【HIGH QUALITY】OCESTORE premium Frequency Counter Tester Meter is made of high quality material which can use for a long time.Programmable addition and subtraction frequency settings, used to measure radio transceivers and other equipment..
【SUPER IMPORTATNT】with crystal oscillator measurement function and programmable addition and subtraction frequency settings, five-digit digital tube display, convenient and intuitive, all use in-line components, simple circuit, easy to make..
【OPTIMAL RELIABILITY】Power supply : USB 5V or DC 5-12V.
Crystal Test Range: about 4MHz-48MHz.Automatic range conversion, no need for manual switching.
All in-line components, easy to install and debug..
【PACKAGE & SERVICE】Package Include: 1 Pcs x Crystal Oscillator Frequency Counter .Any question Pls fell free to contact us, we will reply you within 24H.And we offer a 12 month warranty..

the board Can provide a platform for beginners, in practical applications, it will not be because of insufficient computing power, I0 port function is not comprehensive and hinders development high-quality material, durable, firm and stable for us to use..
STM32F401CCU6 core board 64KB RAM 256KB ROM.
The GND is changed to 5V B9 5V GND, which can directly connect a small steering gear without additional wiring and reduce development time..
25MHZ high speed crystal oscillator 32.768k low speed crystal oscillator.

Clock chip: high-precision clock chip DS3231SN.
is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal..
The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping..
Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line..
The DS3231 is available in commercial and industrial temperature ranges, using a 16-pin 300mil SO package..

The patch device of the main control board has been pre welded and connected to the base plate in the form of stamp hole. The single chip microcomputer adopts pic16f1938, builtin PLL local oscillator, supports crystal oscillator calibration setting, and has its own frequency indication circuit (Seven Segment LED nixie tube is used, the display unit is 1kHz, the photo has color difference, and the actual color is red. The working frequency covers 7.000-7.100mhz, 1kHz or 100Hz steps )..
Ta2003 mixer is used for reception, and crystal filter is used for if. After ta2003 multiplication detection, the sound size is adjusted by digital potentiometer and sent to audio active filter circuit. Finally, LM386 drives speaker, and if frequency supports calibration setting..
Use 3 bs170 parallel outputs, class E amplification, 12V power supply, output power 5W! Relay switching is used for transceiver, with the function of transmitting delay adjustment to avoid frequent relay switching and improve the isolation of transceiver channel..
It has the function of automatically sending call signs, which is very convenient to use. The MCU uses the original code of our store, which can adjust the code speed, sidetone frequency and sidetone size. It can input the call sign by ....

Product Type: Crystal Oscillator Frequency Counter.
Crystal Test Range: about 4MHz-48MHz(not include 32.768KHZ).
PCB Size: 80*53*2mm. Net weight : about 39g.
Package Include: 1 set Frequency Counter Tester Parts( Attention: the products are in parts , the buyers need to assemble them).