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10-Output Low-Jitter Low-Power
Clock Buffer/Level Translator
US5S310
Datasheet
Description
The US5S310 is a highly versatile, low-jitter, low-power
clock fanout buffer which can distribute to ten low-jitter
LVCMOS clock outputs from one of three inputs, whose
primary and secondary inputs can feature differential or
single-ended signals and crystal input. Such a buffer is
good for use in a variety of mobile and wired
infrastructure,
data communication,computing, low-power medical
imaging, and portable test and measurement applications.
When the input is an illegal level, the output is at a defined
state. One can set the core to 2.5 V or 3.3 V, and output
to 1.5V, 1.8 V, 2.5 V or 3.3 V. Pin programming easily
configures the CDCLVC1310. The overall additive jitter
performance is 25 fs
RMS
(typical). The US5S310 comes in
a small 32-pin 5X5 QFN package.
Applications
• Wireless and Wired Infrastructure
• Networking and Data Communications
• Medical Imaging
• Portable Test and Measurement
• High-End A/V
Features
• High-Performance Crystal Buffer With Ultralow Noise
Floor of –169 dBc/Hz
• Additive RMS phase jitter @ 156.25MHz：
• 48fs RMS (10kHz - 20MHz), typical @ 3.3V/ 3.3V
• Level Translation With 3.3-V or 2.5-V Core and 3.3-V,
2.5-V, 1.8-V, or 1.5-V Output Supply
• Device inputs consist of primary, secondary,and
crystal inputs, and manually selectable (through pins)
using the input MUX. The primary and secondary
inputs can accept LVPECL, LVDS, HCSL, SSTL or
LVCMOS signals and crystal input.
• Crystal Input accepts 10MHz to 96MHz Crystal or Single
Ended Clock
• Differential and Single-Ended Input Frequencies
Supported Are up to 200 MHz
• 10 Single-Ended LVCMOS Outputs. The outputs can
operate at 1.5-V, 1.8-V, 2.5-V or 3.3-V Power-Supply
Voltage.
• LVCMOS Outputs Operate up to 250 MHz
• Output Skew Is 30 ps (Typical)
• Total Propagation Delay Is less than 1 ns (Typical)
• Synchronous and Glitch-Free Output Enable Is Available
• Supply voltage modes:
V
DD
/V
DDO
3.3V/3.3V,2.5V,1.8V,1.5V
2.5V/2.5V,1.8V,1.5V
• Industrial Temperature Range:-40°C to 85°C
• Pin-to-Pin compatible to the CDCLVC1310，LMK00101,
8L30110
• Available in a 32-pin,5mm*5mm WQFN package
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