TB-106.250MDE-T

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	--
Operating Temperature:	-40°C ~ 85°C
Series:	TB
Voltage - Supply:	1.8V
Output:	CMOS
Function:	Enable/Disable
Frequency:	106.25MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Oscillators

Oscillators are important components in many electronic circuits. They can provide stable operating frequency and provide a reference signal for signal synchronization. The oscillator is widely used, from the low frequency oscillator to the high frequency oscillator, from the basic analog circuit oscillation to the modern digital controlled oscillation, oscillator applications are pervasive in various electronic fields.One of the most commonly used oscillators is TB-106.250MDE-T. This oscillator is an active type, that uses two transistors, one capacitor and one resistor to form an oscillator. It is mainly used in high-frequency circuit applications. The working principle of the TB-106.250MEE-T oscillator is displayed in the following picture.The oscillation circuit is designed according to the emitter follower and feedback theory. When the working voltage is lower than the threshold voltage, the unipolar transistor will not conduct electricity, and the capacitor C1 cannot be charged. At this time, the potential of the positive end of the capacitor C1 is low, a small current flows through the collector and the emitter of the unipolar transistor, and the voltage at the collector of the unipolar transistor is lower than that at the emitter. So the unipolar transistor does not work. On the contrary, when the voltage of the power supply is higher than the threshold voltage, the unipolar transistor will work, the resistor R is connected between the collector and the positive end of the capacitor C1, the electricity flows through the collector and the emitter of the unipolar transistor, and the voltage at the collector of the unipolar transistor is higher than that at the emitter, so the unipolar transistor is turned on, thus forming a positive feedback circuit. When the positive feedback circuit is turned on, the capacitor C1 is charged and discharged, and the circuit produces an oscillating signal. The frequency of the oscillation signal depends on the RC time constant of the resistor R and the capacitor C1. Therefore, the working principle of the TB-106.250MDE-T oscillator is to turn on the unipolar transistor during power-on, form a positive feedback circuit, and generate an oscillating signal. The oscillating frequency of the TB-106.250MDE-T oscillator is adjustable, because the resistance can be adjusted through the potentiometer. The chip inside the oscillator has a wide range of adjustable voltage, which can be adjusted from 0.72V to 7.5V. And the frequency of the oscillating signal is also adjustable, because it is influenced by the resistance value. The TB-106.250MDE-T oscillator is mainly used in the high-frequency circuit application. It has many advantages compared with other types of oscillators. It is small in size, wide in frequency range and adjustable, so it is particularly suitable for applications where small volume adjustment or precise frequency control is required. And it can be used for signal generation, signal synchronization, electronic products and circuit application, which is widely used in radio frequency and communications.In conclusion, the TB-106.250MDE-T oscillator is an important component in many electronic circuits and has wide applications in many fields. It is used to provide stable operating frequency and reference signal synchronization. Its working principle is to use a unipolar transistor to form a positive feedback circuit and generate an oscillating signal. Its advantages include adjustable, small size and wide range. It is suitable for applications where small volume and precise frequency control are required.

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