1January 2019
© Diodes Incorporated • US: +1-408-232-9100 TW: +886-3-4518888 • www.diodes.com
JT255
Document Number DS41679 Rev 1-2 © Diodes Incorporporated
1.8V ~ 3.3VDC Clipped Sinewave TCXO JT255
Temperature Compensated Crystal Oscillator
2.5 x 2.0mm
A product Line of
Diodes Incorporated
Product Features
•Low Current
•Tight temperature stability
•Clipped Sinewave output levels
•Excellent Phase Noise
•Industrial Temperature Range
•Pb-free and RoHS/Green compliant
•Fast lead time
Product Description
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.
Applications
•Networking systems
•Networking
•GPS/Navigation
•Metering
•Mobile and wireless
•Handset
Package: (scale-none, dimensions in mm)
Recommended Land Pattern:
2.5 x 2.0mm Ceramic SMD
Part Ordering Information:
Following the above format, PSE Technology Corporation part numbers will be assigned upon
confirmation of exact customer requirements.
T50 5 V X FFFF.FFFFFF
ABC
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
Stability and Temp Range: Frequency:
FFFF.FFFFFF
MHz, “4 digits/decimal/6 digits” format
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
P* : This option is not available for all frequencies.
Please contact Pericom sales for your special needs.
Pin Functions:
Pin Function
1Ground
2Ground
3Output
4VDD
2.0 ± 0.2
2.5 ± 0.2
0.8 MAX
0.65 TYP.
1.45
0.055 TYP.
#1 #2
#4 #3
0.055 TYP.
1.91
1.26
# 4 # 3
# 1 # 2
0.65 TYP.
0.8 TYP.
JT255
Typical Frequencies available MHz:
16.367667 16.369 19.200
25.000 26.000 40.000
2January 2019
© Diodes Incorporated • US: +1-408-232-9100 TW: +886-3-4518888 • www.diodes.com
JT255
Document Number DS41679 Rev 1-2 © Diodes Incorporporated
1.8V ~ 3.3VDC Clipped Sinewave TCXO
Temperature Compensated Crystal
Oscillator (TCXO) 2.5 x 2.0 mm
JT255
A product Line of
Diodes Incorporated
For the latest product information visit: https://www.diodes.com/part/JT255
For test circuit go to: 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
Electrical Performance
Parameter Min. Typ. Max. Units Notes
Output Frequency 10 52 MHz
Supply Voltage 1.8 3.3 V See ordering options, VDD ±5%
Supply Current 1.5 mA Output Frequency ≤ 30 MHz
2.0 mA Output Frequency > 30 MHz
Output Voltage Level 0.8 1.4 V Pk-Pk
Output Load Resistance 9 10 11 kΩ
Capacitance 9 10 11 pF
Frequency Stability
vs Temperature ±0.5 ±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
Static Temperature Hysteresis ±0.6 ppm
Frequency Aging ±1.0 ppm First year, +25°C
Frequency Tolerance After Two Reows ±2.0 ppm @ +25°C±3°C after one hour recovery
Harmonics -8 dBc
Operating Temperature Range -40 85 °C See ordering options
Storage Temperature Range -40 85 °C
Phase Noise at 1KHz offset -135 -140 dBc/Hz At 26MHz
Start up Time 2 ms
Notes:
1. For specications 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 specied Operating Temperature Range
4. Frequency Stability vs. Voltage and vs. Load changes are reference to the Nominal Frequency at 25°C
3January 2019
© Diodes Incorporated • US: +1-408-232-9100 TW: +886-3-4518888 • www.diodes.com
JT255
Document Number DS41679 Rev 1-2 © Diodes Incorporporated
1.8V ~ 3.3VDC Clipped Sinewave TCXO
Temperature Compensated Crystal
Oscillator (TCXO) 2.5 x 2.0 mm
JT255
A product Line of
Diodes Incorporated
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