Your system should be built around performance, not
around your cables.
The 3M Internal Twin Axial Ribbon Cable SL8800 Series is a revolutionary ultra
low-profile, high-speed, high signal density cable. 3M offers a broad line of available
pair counts to cover many of the latest differential pair cable applications.
3M SL8800 Series Cable is an optimal solution for space-constrained systems. This cable is
unjacketed, extremely thin and can even be folded with minimal loss or performance impact.
SL8000 Series Cable can route along the sides of cabinets and through narrow openings in
densely packaged equipment. Some high density offerings sacrifice performance to achieve
density. Flex circuits are often used for tight packaging requirements, but flex circuitry can be
cost prohibitive and can have limited bandwidth in some applications. Long high-speed runs
over FR4 materials may require redrive chips adding cost and complexity to your system.
SL8800 Series Cable is being installed in some of today’s most powerful enterprise and high-
performance computing systems to address both performance and packaging.
No compromises
The SL8800 Series Cable is not just for densely packaged systems. The electrical
performance places this cable in an elite category for skew control, low attenuation and
high bandwidth. Even if your system does not require low-profile cable, the SL8800 Series
Cable still provides you with a quality high performance cable for your high-speed signal
requirements.
SL8800 Series Cable is a longitudinally shielded cable construction made to exacting
tolerances. The cable suffers little to no resonance or “suck out,” where traditionally
spiral wrapped twin axial cables exhibit an enormous loss of signal at a particular range
of frequency. The cable is also low skew, and the ribbon construction allows customers
to further control any skew that can sometimes be introduced when trying to manage
individual channels. This is especially critical at speeds beyond 10 Gbps. High-speed
applications continue to demand more performance out of the cables, and the SL8800 Series
Cable is designed to deliver that performance.
As signal speeds continue to increase, cable can improve but the termination can still
be a weak point. The SL8800 Series Cable standard ribbon format supports high
performance termination, repeatability, and a reduced possibility for pinout error. When
stripped in parallel, and then applied in parallel, each channel results in an identical
termination length. Control and placement of individual channels is not required,
eliminating the variation in performance and rework due to incorrect placement. This
simultaneous processing can also yield manufacturing efficiency benefits.
3M
™
Twin Axial Cable SL8800 Series is
longitudinally shielded and made to exacting
tolerances. It is also flexible, foldable and
highly-routable.
Attenuation - SDD12
SL880X Example
Standard Cable
0
2
4
6
Frequency (GHz)
8
10
12
3M
™
Twin Axial Cable SL8800 Series exhibits low
loss and no “suckout.”
The 3M
™
Twin Axial Cable SL8800 Series is ideally suited for paddle card terminated cable assemblies, such as mini serial attached
SCSI (miniSAS) and similar SFF 8087 type cable assemblies, including a four-pair, with four sidebands on the side version,
SL8802/08-XXXXXX. When laid side-by-side, this cable can be used in 8x channel 68-position SFF 8087 applications, with sidebands.
The two-pair cable can benefit your implementation of the new Serial Attached SCSI (SAS) high-density internal assemblies,
SFF XXXX, combining performance, density and flexibility. The cable has been functionally tested in SAS 2.0 applications and passes
those requirements in a 6 Gbps environment. Applications to 10 Gbps and beyond can be implemented with SL8800 Series Cable,
subject to length and attenuation requirements. 3M will continue to support you and your system requirements as bandwidth demands
increase. Look for future versions of 3M high-speed cable in other wire gauges, form factors and performance.
Cables should not be a design constraint. Make them a design enabler.
Part Number
SL8801/12-10DA5-00
SL8801/12-11DA5-00
SL8802/08-20DN5-00
SL8802/08-21DN5-00
SL8803/08-10DN5-00
SL8803/08-11DN5-00
SL8802/04-10DN5-00
SL8802/04-11DN5-00
SL8802/04-50DN5-00
SL8802/04-51DN5-00
SL8801/12-20DA5-00
SL8801/12-21DA5-00
SL8801/11-10DA5-00
SL8801/11-11DA5-00
Product Spec
Attenuation
Skew
Plating
Silver
Tin
Silver
Tin
Silver
Tin
Silver
Tin
Silver
Tin
Silver
Tin
Silver
Tin
PS-0079
Silver, 3 db/m
Tin, 4 db/m
<10ps/m
Typical application
MiniSAS SFF 8087
with sidebands
MiniSAS SFF 8087
without sidebands
SFF 8087 to SATA
Fanout cable
HD SAS SFF 8643
Drawing
78-5100-2412-4
Pairs
4
Sidebands
4
Cross Section
78-5100-2413-2
4
0
78-5100-2414-0
4
0
78-5100-2401-7
2
0
HD SAS SFF 8643
SFF 8087 68 posn
Half wide cable
PCIe on SFF 8087
extra pair for clock
78-5100-2400-9
2
0
78-5100-2463-7
4
4
78-5100-2462-9
5
1
Technical Information
•
•
•
•
•
•
•
•
100 Ohm differential pairs
Four pairs with and without sidebands
Solid polyolefin insulation
.88 mm thick
RoHS* compliant
T
he cable used in this assembly is UL AWM 21008 (150V, 80C); file number E42769
T
he connector materials (resin/PCB) are rated 94 V-0
Halogen-free**
Cable Preparation Support Documentation
Document Number
78-9101-4118-9
Title
3M Twin Axial Cable SL8800 Series - Preparation and Termination Process
*“RoHS Compliant 2002/95/EC” means that the product or part (“Product”) does not contain any of the substances in excess of
the maximum concentration values in EU Directive 2002/95/EC, as amended by Commission Decision 2005/618/EC, unless the
substance is in an application that is exempt under EU RoHS. This information represents 3M’s knowledge and belief, which may
be based in whole or in part on information provided by third party suppliers to 3M.
** Halogen-Free is defined as both 1) no halogen compounds that are intentionally added to the product or used in the
manufacturing process for the product and 2) any impurities present are less than 900 ppm bromine, less than 900 ppm chlorine
and/or less than 1500ppm total bromine and chlorine. The latter are the levels set forth in certain industry standards for printed
circuit boards, such as the International Electrotechnical Commission (IEC) 61249-2-21 standard. This information represents
3M/s knowledge and belief which may be based in whole or in part on information provided by 3rd party suppliers to 3M.
For more information, please visit us at www.3Mtwinax.com
3M is a trademark of 3M Company.
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information believed to be reliable, but the accuracy or completeness is not
guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use.
Any statements related to the product which are not contained in 3M’s current publications, or any contrary statements contained on your purchase order shall have no force or effect
unless expressly agreed upon, in writing, by an authorized officer of 3M.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture for a period of one year from the time of purchase.
3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT
LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
If this product is defective within the warranty period stated above,
your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M product.
Except where prohibited by law, 3M will not be
liable for any indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of the legal theory asserted.
[i=s]This post was last edited by dontium on 2015-1-23 11:46[/i][font=宋体][size=2]Thank you very much to deyisupport in the Analog Technology Forum for sharing how to minimize crosstalk in cable design...
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