NB3N51044 Datasheet, PDF (1/13 Pages) ON Semiconductor – Clock Generator

NB3N51044
3.3 V, Crystal to 100 MHz /
125 MHz Quad HCSL / LVDS
Clock Generator
The NB3N51044 is a precision, low phase noise clock generator that
supports PCI Express and sRIO clock requirements. The device
accepts a 25 MHz fundamental mode parallel resonant crystal or a
25 MHz single ended reference clock signal and generates four
differential HCSL/LVDS outputs (See Figure 10 for LVDS interface)
of 100 MHz or 125 MHz clock frequency based on frequency select
input F_SEL. NB3N51044 is configurable to bypass the PLL from
signal path using BYPASS, and provides the output frequency through
the divider network. All clock outputs can be individually enabled /
disabled through hardware input pins OE[3:0]. In addition, device can
be reset using Master Reset input pin MR_OE#.
Features
• Uses 25 MHz Fundamental Crystal or Reference Clock Input
• Four Low Skew HCSL or LVDS Outputs
• Output Frequency Selection of 100 MHz or 125 MHz
• Individual OE Tri−States Outputs
• Master Reset and BYPASS Modes
• PCIe Gen 1, Gen 2, Gen 3 Compliant
• Typical Phase Jitter @ 125 MHz (Integrated 1.875 MHz to 20 MHz):
0.2 ps
• Typical Cycle−Cycle Jitter @ 100 MHz (10k cycles): 20 ps
• Phase Noise @ 100 MHz:
Offset Noise Power
100 Hz −101 dBc/Hz
1 kHz −123 dBc/Hz
10 kHz −133 dBc/Hz
100 kHz −136 dBc/Hz
1 MHz −141 dBc/Hz
10 MHz −155 dBc/Hz
• Operating Supply Voltage Range 3.3 V ±5%
• Industrial Temperature Range −40°C to +85°C
• Functionally Compatible with ICS841604I with enhanced performance
• These are Pb−Free Devices
http://onsemi.com
MARKING DIAGRAM
TSSOP−28
DT SUFFIX
CASE 948AA
NB3N5
1044G
ALYW
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
Applications
• Networking
• Consumer
• Computing and Peripherals
• Industrial Equipment
• PCIe Clock Generation Gen 1, Gen 2 and Gen 3
End Products
• Switch and Router
• Set Top Box, LCD TV
• Servers, Desktop Computers
• Automated Test Equipment
© Semiconductor Components Industries, LLC, 2014
1
July, 2014 − Rev. 1
Publication Order Number:
NB3N51044/D