A product Line of
Diodes Incorporated
Temperature Compensated Crystal Oscillator
2.5 x 2.0mm
JT255
1.8V ~ 3.3VDC Clipped Sinewave TCXO
2.5 x 2.0mm Ceramic SMD
Package: (scale-none, dimensions in mm)
Recommended Land Pattern:
2.5 ± 0.2
1.91
Product Features
• Low Current
• Tight temperature stability
2.0 ± 0.2
• Clipped Sinewave output levels
#4
#3
0.8 TYP. # 1
#2
• Excellent Phase Noise
1.26
0.65 TYP.
• Industrial Temperature Range
• Pb-free and RoHS/Green compliant
Pin Functions:
• Fast lead time
0.8 MAX
Product Description
0.055 TYP.
0.055 TYP.
1.45
The JT255 TCXO series is a high performance
temperature compensated oscillator with a
clipped sinewave output for a very low operating
supply current. It supports various power supply
voltages, stabilties and other features. It is designed
to meet existing application requirements.
#1
#2
#4
#3
0.65 TYP.
Pin
Function
1
Ground
2
Ground
3
Output
4
VDD
Typical Frequencies available MHz:
16.367667
16.369
19.200
25.000
26.000
40.000
Applications
• Networking systems
Part Ordering Information:
• Networking
T50 5 V X FFFF.FFFFFF
JT255
• GPS/Navigation
A
• Metering
Voltage:
1=+3.3V
2=+2.5V
3=+1.8V
4=+1.5V
B=+3.0V
C=+2.8V
D=+2.7V
E=+2.85V
F=+2.75V
G=+2.4V
• Mobile and wireless
• Handset
B
C
Stability and Temp Range:
Stability
Temp Range -20/+70C -30/+85C -30/+75C -40/+85C
+/-0.5ppm
A
F
K
P*
+/-1.0ppm
B
G
L
Q
+/-1.5ppm
C
H
M
R
+/-2.0ppm
D
I
N
S
+/-2.5ppm
E
J
O
T
+/-5.0ppm
W
X
Y
U
Frequency:
FFFF.FFFFFF
MHz, “4 digits/decimal/6 digits” format
P* : This option is not available for all frequencies.
Please contact Pericom sales for your special needs.
Following the above format, PSE Technology Corporation part numbers will be assigned upon
confirmation of exact customer requirements.
© Diodes Incorporated
JT255
Document Number DS41679 Rev 1-2
•
US: +1-408-232-9100 TW: +886-3-4518888 • www.diodes.com
1
January 2019
© Diodes Incorporporated
1.8V ~ 3.3VDC Clipped Sinewave TCXO JT255
Temperature Compensated Crystal
Oscillator (TCXO) 2.5 x 2.0 mm
A product Line of
Diodes Incorporated
Electrical Performance
Parameter
Min.
Typ.
Max.
Units
Notes
Output Frequency
10
52
MHz
Supply Voltage
1.8
3.3
V
1.5
mA
Output Frequency ≤ 30 MHz
2.0
mA
Output Frequency > 30 MHz
1.4
V
11
kΩ
Supply Current
Output Voltage Level
0.8
Resistance
Output Load
Capacitance
10
9
10
Pk-Pk
11
pF
±5.0
ppm
See ordering options
vs Load
±0.2
ppm
±10% load change
vs Voltage
±0.1
ppm
±5% supply voltage change at typical
load
vs Temperature
Frequency Stability
9
See ordering options, VDD ±5%
±0.5
Static Temperature Hysteresis
±0.6
ppm
Frequency Aging
±1.0
ppm
First year, +25°C
Frequency Tolerance After Two Reflows
±2.0
ppm
@ +25°C±3°C after one hour recovery
-8
dBc
Harmonics
Operating Temperature Range
-40
85
°C
Storage Temperature Range
-40
85
°C
-140
dBc/Hz
2
ms
Phase Noise at 1KHz offset
-135
Start up Time
See ordering options
At 26MHz
Notes:
1. For specifications other than those listed, please contact sales.
2. Not all combinations of VDD, Operating Temperature Range, Frequency Stabilty and Output Frequency are available.
3. Frequency Stability vs. Temperature is reference to the mid-point between minimum and maximum frequency values over the specified Operating Temperature Range
4. Frequency Stability vs. Voltage and vs. Load changes are reference to the Nominal Frequency at 25°C
For the latest product information visit:
For test circuit go to:
https://www.diodes.com/part/JT255
https://www.diodes.com/assets/sre/TCXO_CLIPPEDSINE_RevB.pdf
For soldering reflow profile and reliability test ratings go to: https://www.diodes.com/assets/sre/reflow.pdf
For tape and reel information go to: https://www.diodes.com/assets/sre/tr-2520-xo.pdf
© Diodes Incorporated
JT255
Document Number DS41679 Rev 1-2
•
US: +1-408-232-9100 TW: +886-3-4518888 • www.diodes.com
2
January 2019
© Diodes Incorporporated
1.8V ~ 3.3VDC Clipped Sinewave TCXO JT255
Temperature Compensated Crystal
Oscillator (TCXO) 2.5 x 2.0 mm
A product Line of
Diodes Incorporated
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE
LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice
to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any
product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of
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whose products are represented on Diodes Incorporated website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or
death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may
also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of
the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected
to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and
agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products
in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated
products in such safety-critical, life support devices or systems.
Copyright © 2016, Diodes Incorporated
www.diodes.com
© Diodes Incorporated
JT255
Document Number DS41679 Rev 1-2
•
US: +1-408-232-9100 TW: +886-3-4518888 • www.diodes.com
3
January 2019
© Diodes Incorporporated
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