Crystal Devices

High-Precision TCXOs for 5G Base Stations

5G base stations require components that enable high-speed and high-capacity communications. Kyocera’s High-Precision TCXOs (Temperature-Compensated Crystal Oscillators) meet demand from 5G base stations with more stable frequency-temperature characteristics than conventional products.

Development Background

5G communications, featuring high-speed, high-capacity, ultra-low latency, and multiple connections at the same time, is now entering its full-fledged introduction phase as IoT technology advances.

Among these, 5G base stations are being installed ahead of others. Demand for miniaturization of 5G base stations has been increasing year by year, and crystal oscillators, which are responsible for communication quality, are also required to be miniaturized and highly accurate.

Against this backdrop, Kyocera has developed a High-Precision TCXOs (Temperature-Compensated Crystal Oscillator) that further improves the characteristics of TCXO, which holds the top share* in devices used in mobile communications terminals. It is currently being mass-produced for 5G base stations.

^{* Estimates by Kyocera based on market research reports}

Product Overview

High-Precision TCXOs has stabilized the frequency stability to about 1/10 of that of TCXO, which is commonly used in smartphones.

We have also been able to supply products with extremely high temperature characteristics by using low-dispersion crystal unit, which we have cultivated through the development of compact crystal unit.

Kyocera’s High-Precision TCXOs are currently used in 5G base stations as a reference clock to achieve low-latency communication.

Example of Frequency Temperature Characteristics

Example of Frequency temperature characteristic

^{Data is based on research by Kyocera.}

One of High-precision TCXO : KT5032F Series　Catalog (PDF/152KB)

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Product Features

As the internal temperature of the set increases due to the internal heat generation of the IC used and the compact and sealed structure, a value of ± 0.1 ppm has been achieved with + 105℃ operation, which has been difficult with OCXO (Constant Temperature Chamber Controlled Oscillator).

Standard frequency [MHz] : 10, 19.2, 20, 24.576, 26, 30.72, 38.88, 40
Dimensions : 5.0 x 3.2mm, 7.0 x 5.0mm
　　　　　　　　　　　　
Frequency temperature characteristic : ±0.1ppm or ±0.28ppm / -40 to +105℃

Typical Specifications of High-Precision TCXO

Item	MIN.	MAX.	Unit	Conditions
Standard frequency	10	40	MHz
Frequency temperature characteristic -40 to +105℃	-0.1	+0.1	x10^-6	±(Fmax-Fmin)/2*F0 Temperature gradient by 1℃/min
Power supply voltage change	-0.1	+0.1	x10^-6	3.3V±5%
Load change	-0.1	+0.1	x10^-6	15pF±10%
Total frequency stability	-4.6	+4.6	x10^-6/20Y	Initial tolerance, 20years aging at 25℃, power supply voltage change, load change and temperature characteristic
Frequency slope	-0.05	+0.05	x10^-6/℃	Temperature change by 1℃/min
Phase noise 20MHz	-	-90	dBc/Hz	10Hz offset
	-	-140		1kHz offset
	-	-150		1MHz offset

Detailed specifications can be found on each product search page and catalog.

　KT5032F Series Product search page　　 Catalog (PDF/152KB)　　　

　KT7050A Series Product search page　　 Catalog (PDF/143KB)　　

　KT7050B Series Product search page　　 Catalog (PDF/143KB)　　

Click Here to Product Search (All TCXO) Series List of TCXO

If You Have Any Other Questions, Please Contact Us

Main Applications

5G base stations, RF for networks, Wire communication infrastructure
Reference clock for high-precision measuring instrument

5G Base Station Example

High-Precision TCXO is used as a reference clock to achieve the low-latency communication required by 5G.

Example for using 5G Base Station

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Related Keywords

# Base station # 5G

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