SIT9121AI-2D2-33E200.000000Y

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	35mA
Height - Seated (Max):	0.039" (1.00mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	55mA
Operating Temperature:	-40°C ~ 85°C
Series:	SiT9121
Voltage - Supply:	3.3V
Output:	LVDS
Function:	Enable/Disable
Frequency:	200MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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# SIT9121AI-2D2-33E200.000000Y Application Field and Working Principle## IntroductionOscillators are a type of electrical circuit used to produce a waveform by introducing energy into the circuit or a signal that is about to be corrupted and corrected by the oscillator. The SIT9121AI-2D2-33E200.000000Y oscillator is a type of quartz crystal oscillator, which is a low-power and highly accurate device. It is designed specifically for pulse code modulation (PCM) applications.## Operating ConditionsThe SIT9121AI-2D2-33E200.000000Y oscillator operates at a supply voltage between 1.8V and 3.3V. It has a frequency stability of <±20ppm and is designed to work in a temperature range of -20°C to +70°C. It is capable of driving two TTL loads.## Application FieldsThe SIT9121AI-2D2-33E200.000000Y oscillator is used in many applications including industrial, automotive, medical, military, aerospace and telecommunications. Its precise frequency and high accuracy make it particularly useful in applications such as PCM radios, PLLs, frequency synthesis, and clock dispersing systems.## Working PrincipleThe SIT9121AI-2D2-33E200.000000Y oscillator has a quartz crystal as its core component. It works as follows: when an AC voltage is applied, the quartz crystal starts to vibrate at its natural frequency. This produces a signal that is used to drive the oscillator circuit, which in turn produces the final output signal. The output signal then passes through a feedback loop where its frequency is adjusted and monitored until it reaches the desired precision.## FeaturesThe SIT9121AI-2D2-33E200.000000Y oscillator is designed with several features for reliability and precision. It has a very low jitter (<0.2ps) and low phase noise (-120 dBc/Hz at 10KHz). It also has an integrated low power frequency synthesizer and is monolithic in construction, making it more reliable in operation.## ConclusionThe SIT9121AI-2D2-33E200.000000Y oscillator is a reliable and accurate device with many applications. It has a low power frequency synthesiser and is very suitable for pulse code modulation and frequency synthesis applications. Its features, including low jitter and phase noise, make it an ideal choice for many applications.

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