Ultra Low Jitter PLL Crystal Oscillator 2.5 x 2.0mm
2.5V/3.3V CMOS XO
NX251
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
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.
Pin
Function
1
OE Function
Ground
2
3
Output
4
VDD
*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.
Applications
• Networking systems
• Servers and storage systems
• Consumer applications
• Portable Multimedia Devices
• Bluetooth
Part Ordering Information:
NX 251
V
I
FFFF.FFFFFF
B
C
A
Voltage:
1=+3.3V
2=+2.5V
Stability and Temp Range:
Frequency:
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MHz, “4 digits/decimal/6 digits” format
Stability
Temp Range
A = +/-20 ppm -20/+70°C
B = +/-25 ppm -20/+70°C
C = +/-50 ppm -20/+70°C
D = +/-25 ppm -40/+85°C
E = +/-50 ppm -40/+85°C
SaRonix-eCera™ is a Pericom® Semiconductor company
•
US: +1-408-232-9100 TW: +886-3-4518888
•
www.pericom.com
All specifications are subject to change without notice.
NX251
Rev B
08/13/14
1
14-0045