Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.055" (1.40mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	25mA
Operating Temperature:	-20°C ~ 70°C
Series:	353
Voltage - Supply:	3.3V
Output:	HCMOS
Function:	Enable/Disable
Frequency:	34.368MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators

Oscillators are circuits that generate a repetitive waveform in an electrical signal. They are widely used in digital/analog circuits, and their applications range from basic synchronization, measurement, modeling, filtering, communications, and even motor control. One such oscillator, the LB3C343R, is a high speed programmable frequency synthesizer produced by Linear Integrated Circuits. The oscillator uses the PLL circuit and is hence capable of generating a wide variety of sine waves in both single ended and differential output modes. It offers some unique features such as a low offset, high speed, and tiny package size compared to other PLL circuits. The LB3C343R application field is usually called "multiphase" or polyphase oscillators, which means that multiple frequencies can be generated simultaneously. This is critical in applications where accuracy is essential, as several signals must be used to produce a desired output. Such applications range from marine and automotive navigation, communications, and instrumentation. In terms of working principle, the LB3C343R is essentially a phase-locked loop (PLL) circuit made up of two main components: a voltage-controlled oscillator (VCO) and a phase frequency detector (PFD). The VCO is the key component of the PLL circuit, as it generates an analog or digital signal that is coherently synchronized with an input signal. The frequency generated by the VCO can be determined by a tuning voltage or by direct programming. The output of the VCO is then fed into the PFD, which is used to compare the input signal with the VCO output signal. This allows the VCO to remain “locked” to the input signal. Finally, the PFD output is fed into a charge pump, which amplifies and filters the output. This is done to achieve better accuracy and accuracy over the entire frequency range.The LB3C343R PLL is capable of operating in single ended or differential mode. When in single ended mode, the frequency of the output can be adjusted by changing the VCO tuning voltage. In contrast, when in the differential mode, the frequency can be adjusted by programming the desired frequency directly into the VCO. The LB3C343R oscillator is highly versatile and provides a wide range of applications. It is particularly useful in applications where high accuracy and stability is required, as it can generate multiple signals simultaneously.

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