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NB3L202K Datasheet

Differential 1:2 HCSL Fanout Buffer

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NB3L202K
2.5 V, 3.3 V Differential 1:2
HCSL Fanout Buffer
Description
The NB3L202K is a differential 1:2 Clock fanout buffer with
High−speed Current Steering Logic (HCSL) outputs. Inputs can
directly accept differential LVPECL, LVDS, and HCSL signals.
Single−ended LVPECL, HCSL, LVCMOS, or LVTTL levels are
accepted with a proper external Vth reference supply per Figures 4
and 6. The input signal will be translated to HCSL and provides two
identical copies operating up to 350 MHz.
The NB3L202K is optimized for ultra−low phase noise, propagation
delay variation and low output–to–output skew, and is DB200H
compliant. As such, system designers can take advantage of the
NB3L202K’s performance to distribute low skew clocks across the
backplane or the motherboard making it ideal for Clock and Data
distribution applications such as PCI Express, FBDIMM, Networking,
Mobile Computing, Gigabit Ethernet, etc.
Output drive current is set by connecting a 475 W resistor from
IREF (Pin 10) to GND per Figure 11. Outputs can also interface to
LVDS receivers when terminated per Figure 12.
Features
Maximum Input Clock Frequency > 350 MHz
2.5 V ±5% / 3.3 V ±10% Supply Voltage Operation
2 HCSL Outputs
DB200H Compliant
Individual OE Control Pin for Each Output
100 ps Max Output−to−Output Skew Performance
1 ns Typical Propagation Delay
500 ps Typical Rise and Fall Times
80 fs Maximum Additive RMS Phase Jitter
−40°C to +85°C Ambient Operating Temperature
QFN 16−pin Package, 3 mm x 3 mm
These Devices are Pb−Free and are RoHS Compliant
Typical Applications
PCI Express
FBDIMM
Mobile Computing
Networking
Gigabit Ethernet
www.onsemi.com
MARKING
DIAGRAM
QFN16
1
NB3L
3x3 202K
1
CASE 485AE
ALYWG
G
NB3L202K = Specific Device Code
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information page 13 of this
data sheet.
© Semiconductor Components Industries, LLC, 2016
April, 2016 − Rev. 0
1
Publication Order Number:
NB3L202K/D


  ON Semiconductor Electronic Components Datasheet  

NB3L202K Datasheet

Differential 1:2 HCSL Fanout Buffer

No Preview Available !

NB3L202K
Figure 1. Simplified Block Diagram
Figure 2. 16−Pin QFN Pinout
(Top View)
www.onsemi.com
2


Part Number NB3L202K
Description Differential 1:2 HCSL Fanout Buffer
Maker ON Semiconductor
Total Page 14 Pages
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