NB3L208KMNG Clock & Data Distribution by ON Semiconductor

2.5V, 3.3V Differential 1:8 HCSL Fanout Buffer

Status: Active
Series: NB3L208K
RoHS: Compliant
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The NB3L208K is a differential 1:8 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 eight identical copies operating up to 350 MHz. The NB3L208K is optimized for ultra−low phase noise, propagation delay variation and low output–to–output skew, and is DB800H compliant. As such, system designers can take advantage of the NB3L208K’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  resistor from IREF (Pin 27) to GND per Figure 11. Outputs can also interface to LVDS receivers when terminated per Figure 12.

Where to Buy

Prices starting from US$6.47

Distributor Stock
Logo for Farnell
Farnell
from US$6.74
35,428
in stock
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Newark Electronics
from US$6.47
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element14
from US$7.19
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Features

Maximum Input Clock Frequency > 350 MHz
2.5 V ±5% / 3.3 V ±10% Supply Voltage Operation
8 HCSL Outputs
DB800H Compliant
Individual OE Control Pin for Each Bank of 2 Outputs
100 ps Max Output−to−Output Skew Performance
1 ns Typical Propagation Delay
450 ps Typical Rise and Fall Times
80 fs Maximum Additive Phase Jitter RMS
PCIe Gen 3 and Gen 4 Compliant
Applications
Mobile Computing
Gigabit Ethernet
PCI Express Gen 3 and Gen 4
End Products
Networking
FBDIMM

Specifications

Description NB3L208K
Compliance Pb-free Halide free
Type Buffer
Channels 1
Input / Output Ratio 1:8
Input Level HCSL LVDS LVPECL
Output Level HCSL
VCC Typ (V) 2.5 3.3
tJitterRMS Typ (ps) 0.046
tskew(o-o) Max (ps) 20
tpd Typ (ns) 1
tR & tF Max (ps) 700
fmaxClock Typ (MHz) 350
Package Type QFN-32

Alternative Descriptions

1:8 Hcsl Fanout Buffer/Tube |Onsemi NB3L208KMNG | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a NB3L208KMNG?

Additional datasheets, footprints and schematics for NB3L208KMNG are listed on our Part Details page. You can also find images and similar parts to NB3L208KMNG on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for NB3L208KMNG on our Product Comparison page. Access via the 'View Pricing & Stock' button to view NB3L208KMNG price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does NB3L208KMNG fall under?

The NB3L208KMNG is listed under Timing, Logic & Memory > Clock & Data Distribution > Drivers & Fanout Buffers.

Can I view similar or alternative parts?

You can view similar parts to NB3L208KMNG when available in the Drivers & Fanout Buffers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the NB3L208KMNG you can contact the distributor directly for product support, shipping queries etc.

Is the NB3L208KMNG RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for NB3L208KMNG have stock available?

Authorised distributors including Farnell, Newark Electronics and element14 have stock available or on a lead time for NB3L208KMNG.

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