Reviews Pll Voltage controlled Oscillator

Abovehill S-Pixie CW QRP Transceiver Telegraph Shortwave Radio Radio 7.023Mhz 40 Meter+Case Assembled

S-Pixie Kit is a small and exquisite shortwave radio station, working mode is CW. Transmitting local oscillator frequency: 7023KHz.
receiving local oscillator frequency: about 7023-7026KHz..
Radio Station Power Supply Voltage is 9-13.8V (Battery or Linear Regulated Power Supply is Recommended), and the positive and Negative Poles are Not distinguished. Antenna: 50 ohm, 7MHz, standing wave ratio below 2.0..
Radio station receiving static current: 20mA, transmitting current: 120mA , Transmitting power: 1.2W, does not support automatic transmission, key: manual key.
Before powering on the radio station, please connect a dummy load to prevent accidental emission from burning..
After you purchase, I will send you the product manual through the platform chat window. After getting the product, please tear off the protective film on the product protective case. You will get exactly the same product as the main picture. We will provide you with quality service. Please feel free to contact me if there are any problems during the use of the product..

...he help of high-frequency oscillation, the medicine is evenly and completely covered on the inner wall of the root canal..
CONVENIENT TO USE--Using ordinary LR6 batteries, it can work continuously for more than 16 hours. And the constant voltage control device can keep our oscillator working normally for a period of time when the power is low..
NOTICE--The needle tips are made of polymer material and are limited to single patient use. Please do not reuse, do not soak in disinfectant, and do not disinfect under high temperature/pressure.(Battery is not included).

DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal..
RTC maintains seconds, minutes, hours, day, date, month, and year information. Less than 31 days of the month, the end date will be automatically adjusted, including corrections for leap year..
The clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format..
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..
The device integrates a very precise digital temperature sensor, On-chip power supply control circuit can automatically detect and manage the main and standby power (i.e., low-voltage battery) to switch between the power supply..

Test Accuracy: The frequency meter is designed with dual intermediate frequencies. The intermediate frequency value and the addition and subtraction mode can be preset separately without affecting each other, which can achieve high stability and high resolution. The tester has good sensitivity, better than 60mVPP.
Excellent Performance: The frequency reference uses a temperature compensated voltage controlled crystal oscillator. The display driver adopts LED display special chip, the digital tube has high brightness and less external interference.
Small and Convenient: This module is compact and exquisite in design, can be put into a pocket, does not occupy extra space, is convenient to carry, and has reliable performance, good visual effects, and low cost.
Convenient to Operate: The circuit of the frequency meter is simple, the design structure is reasonable, and the unique two key control method and precise time algorithm are used to make the operation simple and fast.
Multi Function: The circuit is simple, the structure is reasonable, double button control, and the operation is simple. Each setting is automatically saved, and the power is on.

Type:5V Electromagnetic Active Buzzer, Material: ABS.
Rated Voltage: 5V, Operating Voltage: 4-8V, Rated Current (MAX): 30mA, Min Sound Output At 10cm: 85 dB, Resonant Frequency: 2300 +/- 300 Hz..
Uses: Active buzzer need only on the DC will beep,active buzzer internal oscillator..
High Quality: All multi-chip integrated circuits using gold wire ball bonding, complex production process, long life, stable performance, high rate of qualified products..
Package content:12pcs Electromagnetic Active Buzzer..

Built-in linear sawtooth oscillator with only two external oscillating components (resistance and capacitance).
Built-in power transistor provides 500mA drive capability.
Integrated all pulse width modulation circuits.

...Z, can be widely applied in business, industries, word controlling etc.This is a microwave sensor module for detecting moving objects and human body. Widely used in human body sensing lighting system, anti-theft alarm system..
【Parameter】 Advanced low consumption PHEMT oscillator, Provide various frequency range standards: -UK,-F,Operating Temperature:-20~60℃..
【Independence】Independent transmitting and receiving route, can get the big gain. The module has many advantages such as high sensitivity, long sensing distance, wide sensing angle, high reliability, wide range of operating voltage..
【High performance】 Single channel operation. High sensibility, high flexibility, low cost, operating distance is 15m. Not influenced by temperature, humidity, noise, air flow, dust, ray etc, adaptive to terrible environment.

Transparent Polyurethane Cabinet, 10 Memory Preset Stations (5 FM/5 AM) Easy to Read LCD Display, PLL Synthesized Tuning System.
Clock, Alarm Function has been Disabled, Adjustable Sleep Timer, Snooze Function.
Bass Compensation for Richer Bass, Rotary Bass and Treble Control, 3" 7W Full Range Speaker with Enlarged Magnet.
9-15 Voltage Power Adapter Jack for Vehicle Power, External AM Antenna Terminal.
Aux-in Jack has been Disabled, Stereo Headphone Jack, REC-Out.

The Planar PLL2450MW offers enough screen real estate to view multi-page documents or watch videos, but its smaller footprint is ideal for space-constrained desktops.
The Planar PLL2450MW offers wide viewing angles and excellent color balance while maintaining a quick refresh rate. Blue light reduction pre-sets help lower eye fatigue and maintain visual comfort.
Featuring a 100mm VESA compatibility for easy wall or arm mounting, the Planar PLL2450MW pairs well with Planar's accessories, including the Dual Monitor Stand.
The Planar PLL2450MW includes Planar's leading Planar CustomerFirst 3-Year Warranty featuring FREE 2-Day Advance Replacement.
Compatibility-PC and Mac (adapter may be required for Mac).