DSC1122BI2-114.2850

Series:	DSC1122
Packaging:	Tube
Part Status:	Active
Base Resonator:	MEMS
Type:	XO (Standard)
Frequency:	114.285MHz
Function:	Enable/Disable
Output:	LVPECL
Voltage - Supply:	2.25 V ~ 3.6 V
Frequency Stability:	±25ppm
Operating Temperature:	-40°C ~ 85°C
Current - Supply (Max):	58mA
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	6-SMD, No Lead
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Height - Seated (Max):	0.035" (0.90mm)
Current - Supply (Disable) (Max):	22mA

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DSC1122BI2-114.2850 Oscillator

Oscillators are used to produce a signal with a precise and stable frequency. The DSC1122BI2-114.2850 (hereafter abbreviated as BI2) is a type of oscillator that is suitable for many applications due to its wide working range and high accuracy.This article will discuss the BI2’s application field and working principle.

Application Field

The BI2 is an ideal option for many general purpose applications requiring a stable frequency and high accuracy. This oscillator is suitable for radio transceivers, cellular phones, base station communications, GPS signal acquisition, as well as many precision frequency generators and frequency synthesizers.

Working Principle

The BI2 utilizes a temperature-compensated crystal oscillator (TCXO) chip made from piezoelectric quartz or AT-cut crystals for precise and stable frequency generation. The quartz crystal is housed in a metal-ceramic package consisting of Gold lead wires that are soldered to the pad circuit. This package is then filled with a temperature-controlled gas which is then sealed in the package in order to protect the crystal from physical and environmental damage. The BI2 oscillator operates in a temperature range of -30°C to +85°C. When temperatures change, the crystal naturally changes its resonant frequency. To ensure accuracy, the BI2 utilizes an automatic temperature compensation (ATC) management system to keep the crystal oscillation accurate. This system works by comparing the output frequency to a reference frequency and then adjusts the crystal’s oscillator circuit until the frequency is within a specified tolerance.

Conclusion

The DSC1122BI2-114.2850 oscillator is a highly reliable and accurate oscillator that is suitable for many applications ranging from radio transceivers and cellular phones to GPS signal acquisition and precision frequency generators and synthesizers. The core component of the BI2 is the temperature-compensated crystal oscillator chip that is housed in a metal-ceramic package and sealed with a temperature-controlled gas. An automatic temperature compensation management system is also utilized to ensure the BI2’s accuracy with changing temperatures.

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