Pericom NX2512D 2.5v/3.3v cmos xo Datasheet

Ultra Low Jitter PLL Crystal Oscillator 2.5 x 2.0mm
NX251
2.5V/3.3V CMOS XO
2.5 x 2.0mm Ceramic SMD
Package: (Scale: none, Dimensions are in mm)
Product Features
Recommended Land Pattern:
• Very low phase jitter - < 1ps RMS max.
• Wide frequency range - 5 ~ 250MHz
• Thicker crystal for improved reliability
• Low supply current - 50mA max.
• Industrial Temperature Range
• Pb-free & RoHS compliant
• Fast lead time
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
Product Description
Pin Functions:
The NX251 XO series is a high performance
CMOS crystal oscillator family with very low
jitter performance. It supports various options
including wider frequency range, 2.5V/3.3V
voltage, and various stabilities.
It is designed to meet the clock source
specifications for communication systems, and
other high performance equipment.
Applications
Pin
Function
1
OE Function
2
Ground
3
Output
4
V DD
*Extended high frequency power decoupling is recommended (see test circuit for minimum
recommendation). To ensure optimal performance, do not route RF traces beneath the
package.
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
• Networking systems
• Servers and storage systems
Part Ordering Information:
• Consumer applications
NX 251
• Portable Multimedia Devices
• Bluetooth
Voltage:
1=+3.3V
2=+2.5V
SaRonix-eCera™ is a Pericom® Semiconductor company
14-0045
•
V
I
A
B
FFFF.FFFFFF
C
Stability and Temp Range:
Stability
A = +/-20 ppm
B = +/-25 ppm
C = +/-50 ppm
D = +/-25 ppm
E = +/-50 ppm
Temp Range
-20/+70°C
-20/+70°C
-20/+70°C
-40/+85°C
-40/+85°C
US: +1-408-232-9100 TW: +886-3-4518888
All specifications are subject to change without notice.
NX251
Frequency:
FFFF.FFFFFF
MHz, “4 digits/decimal/6 digits” format
•
www.pericom.com
Rev B
08/13/14
1
2.5V/3.3V CMOS XO
NX251
Ultra Low Jitter PLL Crystal Oscillator 2.5 x 2.0mm
Electrical Performance
Parameter
Min.
Output Frequency
Typ.
Max.
Units
250
MHz
3.135
3.3
3.465
2.375
2.5
2.625
5
Supply Voltage
Supply Current, Output Enabled
Notes
V
60
See ordering options
mA
Supply Current, Output Disabled only
40
mA
Frequency Stability
±50
ppm
See ordering options
+85
°C
See ordering options
0.4
V
15
pF
55
%
Rise and Fall Time
3
ns
Measured 20/80% of waveform
Jitter, Accumulated, RMS (1-σ)
6
ps
20.000 adjacent periods
Operating Temperature Range
-40
Output Logic 0, VOL
Output Logic 1, VOH
V DD -0.4
V
Output Load
Duty Cycle
45
Jitter, Phase, RMS
Measured 50% V DD
< 40MHz
0.4
1
ps
12kHz to 5 MHz frequency band
40 to 250MHz
0.4
1
ps
12kHz to 20 MHz frequency band
125MHz, 156.25MHz
0.4
0.6
ps
12kHz to 20 MHz frequency band
40
ps
100,000 random periods
Jitter, pk-pk
Notes:
1. Stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration tolerance (25°C),
aging (1 year at 25°C average effective ambient temperature), shock and vibration.
2. Phase jitter typical value is depending on output frequencies.
3. For specifications other than those listed, please contact sales.
Output Enable / Disable Function
Parameter
Min.
Input Voltage (pin 1), Output Enable
Typ.
Max.
Units
0.7 V DD
Input Voltage (pin 1), Output Disable (low power standby)
Notes
V
or open
Output is Hi-Z
0.3 V DD
V
Output Disable Delay
100
ns
Output Enable Delay
100
ns
Start up Time
10
ms
Absolute Maximum Ratings
Parameter
Min.
Storage Temperature
For the latest product information visit:
For test circuit go to:
Typ.
-55
Max.
Units
+125
°C
Notes
http://www.pericom.com/products/crystals-and-crystal-oscillators/hiflex-xo/?part=NX251
http://www.pericom.com/pdf/sre/tc_hcmos2.pdf
For soldering reflow profile and reliability test ratings go to: http://www.pericom.com/pdf/sre/reflow.pdf
For tape and reel information go to: http://www.pericom.com/pdf/sre/tr_2520_xo.pdf
SaRonix-eCera™ is a Pericom® Semiconductor company
14-0045
•
US: +1-408-232-9100 TW: +886-3-4518888
All specifications are subject to change without notice.
NX251
•
www.pericom.com
Rev B
08/13/14
2
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