TC-3.6864MCE-T

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	--
Operating Temperature:	-40°C ~ 85°C
Series:	TC
Voltage - Supply:	2.5V
Output:	CMOS
Function:	Enable/Disable
Frequency:	3.6864MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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TC-3.6864MCE-T is an oscillator commonly used in communication circuits, including highly accurate frequency sources and components. The device is typically used for LTE base station transceivers, WiMAX, Network Interface Modules (NIMs), Wireless LAN access points, LTE/WiMAX small cell base stations, Femtocell base stations, and other consumer electronics devices.

TC-3.6864MCE-T is a highly-integrated, temperature compensated oscillator module designed for wide-temperature range applications. It is available in two different package sizes, 12.7mm x 16.1mm and 15.9mm x 22.1mm, and features:

• Organic package for exceptional reliability and high-temperature operation
• Excellent tuning sensitivity and superb jitter performance
• Frequency accuracy < ±2.0 ppm over -40°C to +85°C
• Operates from 2.8V - 3.6V, LVPECL and LVDS compatible outputs
• Wide temperature range of -40°C to +85°C
• High shock and vibration tolerances

TC-3.6864MCE-T is an ideal temperature-compensated crystal oscillator (TXCO) with high frequency stability over the full operational temperature range, making it suitable for base station applications. The only external components required are three capacitors for the power supply and two capacitors for the circuit trimming.

TC-3.6864MCE-T uses a temperature-compensation circuit to control the oscillator\'s frequency drift due to temperature variations. The control voltage is derived from a temperature sensor diode, which is directly coupled to the oscillator core. Its purpose is to compensate the frequency drift that naturally occurs over temperature variants. This control circuit is responsible for detecting and correcting any frequency changes that occur due to temperature change. The temperature sensor diode is monitored with reference to an internal temperature reference, which allows the temperature-compensation circuit to adjust the oscillator frequency in order to maintain the correct frequency of operation.

The oscillator itself consists of two main parts. The crystal unit acts as the resonator, while the frequency control loop contains the temperature sensor diode and controls the frequency of the oscillator. The frequency control loop is the essential part of the oscillator, as it provides automatic frequency compensation over temperature, resulting in increased accuracy and stability.

In summary, TC-3.6864MCE-T is a temperature-compensated crystal oscillator (TCXO) for high-temperature applications. Its built-in temperature compensation circuit monitors the device’s temperature and adjusts the frequency of the oscillator in order to maintain the correct frequency of operation. It is available in two package sizes, 12.7mm x 16.1mm and 15.9mm x 22.1mm, and operates from 2.8V to 3.6V with LVPECL or LVDS outputs.

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