Datasheet

Temperature Compensated Crystal Oscillator
2.5 x 2.0mm
JT255
1.8V ~ 3.3VDC Clipped Sinewave TCXO
Typical Frequencies available MHz:
16.367667
16.369
19.200
25.000
26.000
40.000
Package: (scale-none, dimensions in mm)
2.5 x 2.0mm Ceramic SMD
Recommended Land Pattern:
Product Features
• Low Current
• Tight temperature stability
• Clipped Sinewave output levels
• Excellent Phase Noise
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
• Industrial Temperature Range
• Pb-free and RoHS/Green compliant
Pin Functions:
• 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.
Pin
Function
1
Ground
2
Ground
3
Output
4
VDD
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
Applications
Part Ordering Information:
• Networking systems
JT
T50255
5 V X FFFF.FFFFFF
• Networking
A
Voltage:
• GPS/Navigation
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
• Metering
• 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.
SaRonix-eCera™ is a Pericom® Semiconductor company
15-0077
•
US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com
All specifications are subject to change without notice.
JT255 REV C
04/07/2015
1
1.8V ~ 3.3VDC Clipped Sinewave TCXO
JT255
Temperature Compensated Crystal Oscillator (TCXO)
2.5 x 2.0 mm
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
vs Temperature
9
10
9
10
±0.5
vs Load
Frequency Stability
vs Voltage
See ordering options, VDD ±5%
Pk-Pk
11
pF
±5.0
ppm
±0.2
ppm
±10% load change
ppm
±5% supply voltage change at typical
load
±0.1
See ordering options
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:
http://www.pericom.com/products/crystals-and-crystal-oscillators/tcxo/?part=JT255
http://www.pericom.com/assets/sre/TCXO_CLIPPEDSINE_RevB.pdf
For soldering reflow profile and reliability test ratings go to: http://www.pericom.com/assets/sre/reflow.pdf
For tape and reel information go to: http://www.pericom.com/assets/sre/tr_2520_xo.pdf
SaRonix-eCera™ is a Pericom® Semiconductor company
15-0077
•
US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com
All specifications are subject to change without notice.
JT255 REV C
04/07/2015
2