NX254 Datasheet, PDF (1/2 Pages) Pericom Semiconductor Corporation – 2.5V/3.3V HCSL XO

2.5V/3.3V HCSL XO
Ultra Low Jitter PLL Crystal Oscillator 2.5 x 2.0mm
NX254
2.5 x 2.0mm Ceramic SMD
Product Features
• Meet PCIe Gen2 and Gen3 clock
requirements at 100MHz
• Very low phase jitter - < 1.0ps RMS max.
• Wide frequency range - 5 ~ 212.5MHz
• Thicker crystal for improved reliability
• Low supply current - 70mA max.
• Industrial Temperature Range
• Pb-free & RoHS compliant
• Fast lead time
Package: (Scale: none; dimensions are in mm)
Recommended Land Pattern:
2.70
1.50
0.60
0.70
Product Description
The NX254 XO series is a high performance
HCSL crystal oscillator family with very low
jitter performance. Other than PCIe clock
frequencies, it also supports various options
including other Networking frequencies,
2.5V/3.3V voltage, and various stabilities.
It is designed to meet the clock source
specifications for PCIe interface, SGMII of
communication systems, and other high
performance equipment.
Applications
• Networking systems
• Servers and storage systems
• Profession video equipments
• Test and measurement
• FPGA/ASIC clock generation
Pin Functions:
Pin
Function
1
OE Function
2
N/C
3
Ground
4
Q
5
Q
6
V_CC
*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.
Part Ordering Information:
UX_NX70₂₅₄ V I₁ F_FF_FF_FF_F.F_.FF_FF_FF_FF_FF_F
A
B
C
Voltage:
1=+3.3V
2=+2.5V
Stability and Temp Range:
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
Frequency:
FFFF.FFFFFF
MHz, “4 digits/decimal/6 digits” format
SaRonix-eCera™ is a Pericom® Semiconductor company • US: [phone] TW: [phone]   •   www.pericom.com
All specifications are subject to change without notice. NX254
Rev A
02/05/15
1
15-0037