SIT9121AI-1C3-33E137.333333T

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	35mA
Height - Seated (Max):	0.032" (0.80mm)
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):	69mA
Operating Temperature:	-40°C ~ 85°C
Series:	SiT9121
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	Enable/Disable
Frequency:	137.333333MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction
The SIT9121AI-1C3-33E137.333333T is a micropower temperature compensated crystal oscillator (TXCO) module developed, designed and industrialised by System in Package (SiP) Technology. It is specialised for use in a variety of applications that require very low-power consumption and positive temperature coefficient control, such as automotive electronics, telecommunication systems, environmental monitoring systems, motion control and clocks.Application Field
The SIT9121AI-1C3-33E137.333333T is a low power, highly reliable and accurate module that is suitable for specialised applications that require temperature stability over a wide range of conditions. Its positive temperature coefficient control allows it to be used in automotive electronics, telecommunication systems, environmental monitoring systems, motion control and clock applications. Its low power consumption and high accuracy also make it ideal for low-power/low-voltage applications.Working Principle
The SIT9121AI-1C3-33E137.333333T utilizes a Temperature Compensated Crystal Oscillator (TXCO) module developed by the SiP (System in Package) Technology to provide reliable clock accuracy. This module consists of two core elements; a voltage-controlled crystal oscillator (VCXO) along with an integrated temperature compensator.The VCXO inside the module is a small quartz crystal that is designed to oscillate at a specific frequency and is kept in a temperature-controlled environment. The temperature compensator is then used to regulate the crystal\'s frequency over a wide range of temperatures. As the temperature changes, the crystal\'s frequency can be adjusted to stay within its tolerance range, resulting in a highly accurate frequency-controlled oscillator.Conclusion
The SIT9121AI-1C3-33E137.333333T is an ideal low-power, accurate and cost-effective temperature-controlled crystal oscillator module. Its ability to perform at a wide range of temperatures and its low power consumption make it suitable for a variety of applications, including automotive electronics, telecommunication systems, environmental monitoring systems, motion control and clock applications. Its temperature compensating feature ensures that the crystal oscillates at its most accurate frequency, while its small size and low power consumption make it a great choice for low-power/low-voltage applications.

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