Corralling the 18G Beast
Corralling the 18G Beast
Introduction
In professional AV installations, how did we get to the point
where HDMI connections everywhere - once standing
proud, carrying glorious 1080p signals, start to fail with the
insurgence of 4K? Perhaps a more topical question, why did
the recently installed 4K interconnect solutions start failing
when the latest and greatest HDMI 2.0b enabled equipment
was connected around them? The same symptoms are
always there - Sparkles, mysterious and random (and
sometimes periodic) video drop outs and the dreaded “No
Image Found” OSD error. Yes, it’s ruined all of our days at
one point or another. The answers to these questions are
complex, highly technical and snooze-worthy.
To avoid all explanation, ideally, we the hardware
manufacturers, could engineer efcient and reliable future-
Written by Jack MacDougall
proofed HDMI connectivity products. Permanent HDMI
extension technology to help in long haul HDMI applications
- sadly, standards evolve and connectivity solutions
become obsolete, unable to support the latest and greatest.
Predictably installers band together (and understandably
so) and it’s suddenly a “Grab your spear and pitchforks!”
situation towards the manufacturers. I get it - it’s frustrating.
However, I will do my very best to untangle where things
may have gone wrong, but more importantly, I will say right
from the get-go to take a deep breath. Everything is going
to be ok. There are some amazing products out there that
will allow you to run 18G with ease up to some extraordinary
reaches. Is now a bad time to mention that all of the solutions
I will speak of will be obsolete with the looming HDMI 2.1
standard? I digress.
Background
If you’ve chosen to read on, rst off, I know most are quick
to blame HDCP. I am here to say that while the improper
implementation of HDCP extension can cause issues, the
fact of the matter is, the high-speed signals that supports
max 4K HDMI standards (18Gbps) is what is causing
the most headaches now regarding HDMI 2.0 equipment
compatibility issues, specically in long reach applications.
In the beginning, the only answer to achieving robust HDMI
long reach signal recovery (say above 5m) was just to make
the cable as thick as possible to accommodate the eight
large 22AWG (or 24 AWG) wires necessary to connect to
HDMI displays as far away as possible. The side effect,
of course, is that this caused an industry-wide stigma
towards passive HDMI cables in the ProAV industry; large
basketball sized bend radiuses to/from HDMI equipment
therein breaking HDMI ports altogether. That and a tidal
wave of random budget HDMI boosters relied upon to x the
problems (either in-cable or detachable form).
“ PXLDRIVE™ is the industry’s rst active long reach
THX® Certied 4K Interconnect. Capable of reviving
uncompressed signals up to the maximum 18Gbps
UHD bitrate over new or pre-existing HDMI cable,
PXLDRIVE™ lls one of the biggest ‘missing links’ in the
custom installation market – a reliable and economical
full-bandwidth solution.”
May 2017
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Corralling the 18G Beast
These active devices made a lot of promises and often fell
short regarding interoperability and longevity. These HDMI
extenders did lots of “interesting” things to say the least.
I’ve seen great high-speed signal recovery techniques (but
no CEC function at all), built-in HDCP extenders that did
more harm than good and ones that worked only at 1080p
but not 480p. There are also HDMI extenders with manually
tunable gain pots and my favourite, dongles that played
tricks with the HDCP specication in attempts to eliminate
HDCP related issues by permanently removing the keys
altogether. Awful.
Somewhere along the way came a revolt. There was an
apparent demand for robust long reach HDMI connectivity
and the applications were popping up everywhere.
Moreover, TV’s got bigger, and the walls that supported
them got bigger (which meant the rooms were getting
bigger) and most importantly customers didn’t want their AV
gear directly under their TV’s anymore. Several companies
started creating more practical means of extension methods.
The simple and obvious strategy was to repurpose Category
cabling (CAT5e, CAT6 etc.) to adequately ll this void not
only to remove the negative bullets of long reach HDMI
connectivity but also add a useful solution for non-HDMI
signals such as IR, USB & RS232. Fantastic!, right? Yes,
and no. There are limitations to everything, more on this
later.
I want to be clear about this, I am a tech nerd rst, and I
admire all the HDMI extension strategies/solutions out there
to this point. The reason I say this is that there is always
someone (or a team of someone’s) behind the origins of
each solution, each more passionate than the next. We
all have one thing in common, we all want to solve this
problem and stay ahead for the end user. I love hearing the
debates from ‘Team Fiber’ to ‘Team CATx’ to ‘Team IP’, or
‘Team Copper’ (st to chest, Represent!). There is a t for
everyone, let’s just make sure we know the pros and cons.
Manufacturers should educate and not mislead.
What makes some long reach HDMI cables more lossy than others?
Let’s start with the HDMI cables themselves. What makes
some HDMI cables more “lossy” than others? Well, to
answer this question, rst we must dene what’s under
the hood from a high-speed perspective. Inside an HDMI
cable, there are three twisted pairs dedicated to transmitting
video data (TMDS 2:0) and one additional pair for the clock
(running at a much slower rate). There are, of course,
several other wires for handling low-speed communication
(DDC, CEC, ARC) and DC (+5V, HPD) signals. Each pair
of data (by current HDMI 2.0b specication) can run up to
5.94Gbps (this is where “18G” comes from as it is the sum
of the three 5.94Gbps signals; 3 TMDS pairs X 5.94G =
17.82Gbps). The aggregate bitrate is what allows for what
we at Pixelgen call “Max 4K” signalling. For the record, my
Thinnest HDMI Cable
Thickest HDMI Cable
34AWG = Up to 2m
30AWG = Up to 3m
28AWG = Up to 5m
26AWG = Up to 8m
24AWG = Up to 10m
22AWG = Up to 12m (sometimes 12.5m when the stars are aligned perfectly)
personal favourite nickname to date has been “Fat 4K”.
Many mechanical attributes make HDMI cables more lossy
than others such as; wire gauge, skew, impedance matching,
twist ratios to name a few. All of them put in a blender can
affect the overall loss of the HDMI cable. If we look at one of
the most signicant factors, wire gauge, thicker conductors
equate to lower loss (longer lengths achievable even at 18G
but much bigger) and naturally thinner conductors equate
to higher loss (only shorter lengths possible, but easier to
run). It’s impossible to give precise failure points to the 18G
signal over passive HDMI cables, but in my experience, with
a quality constructed HDMI cable, you are looking at the
following reach expectations with a standard 18G enabled
HDMI 2.0b input port (refer to Fig. 1).
May 2017
Fig. 1 Passive HDMI length estimates
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Corralling the 18G Beast
Now, when I mention “quality constructed HDMI cable”, the
twisting of the individual pairs becomes paramount in all of
this. For example, if cable manufacturer does not account
for the wire twist geometries (such as intra-pair, meaning
conductor-to-conductor in twist itself or inter-pair skew
meaning pair to pair) then in some cases it won’t matter
what the gauge is, problems may arise at 18G regardless.
For example, when a cable bends around a turn in an
installation, the twisted pairs have a natural tendency to
create gaps in these loosely coupled areas of the twist –
and this problem is only exasperated with thicker conductors
(I’ve asked, apparently, they cannot be glued together to
maintain the twist). The twist should be preserved to ensure
that the signal is always coupled to itself and doesn’t fall
victim to crosstalk, EMI or other high-speed predators. The
point I’m trying to emphasize is that while thicker wires
can theoretically reach further, this is not the only electro-
mechanical metric that is important. The higher quality cable
manufacturers understand things like this and can monitor
twists on the y over their cable building process. So yes -
At 18Gbps, cables DO matter.
Why can’t HDMI displays themselves recover 4K with long cables?
One of the most challenging aspects of trying to restore a
high-bandwidth 4K signal is that typical HDMI receiver chips
found within displays also need to recover lower resolutions
like 480p (270Mbps), 720p and 1080p. That is, all the while
over a vast array of short to mid range HDMI cable lengths
and all of this as reliably and robustly as possible. This
highly volatile situation (all speeds, all distances) makes it
very tricky for the HDMI receiver chips found in 4K displays
and projectors (for example) to recover all signal speeds
over anything past the length estimates previously outlined
(refer to Fig. 1), all the while guaranteeing a good name to
the CE brand they represent. Therefore, you often see the
bold emphasised “Thou shall use HDMI cable included in
the box” statements in user manuals.
Integration of more sophisticated Equalization (EQ) IC’s
may be perceived as overkill to major CE brands as most
cable ranges used by the mass consumer base fall under
these short-to-mid ranges anyways. Almost exclusively, CE
brands leave the long-reach HDMI aspect to the professional
installers. More importantly, I can completely empathize
with why no CE equipment provider wants to bear the
responsibility of the historical problems that have plagued
the industry regarding long reach HDMI. Now I will say this,
there hasn’t been a solution to this point that can efciently
recover a 4K signal at long ranges in a genuinely cable
length adaptive fashion until now (including these short to
mid range lengths), so this may change in the future.
Enter 18G (The Beast)
18G (or 18Gbps) represents the HDMI bitrate required to
deliver the highest 4K bandwidths currently supported by the
HDMI 2.0b specication (we’ll leave HDMI 2.1 for another
day, 48Gbps, gulp). You’re welcome. The HDMI bitrate is
an amalgamation of the four key variables described in Fig.
2. These four factors, all put through a simple formula (refer
to Fig. 3) will equate to different HDMI bitrates required to
deliver the entire spectrum of supported HDMI video formats.
To date, the two most troublesome 18G supported
formats include the infamous 4K60 8bit 4:4:4 signal and
the 4K60 12bit 4:2:2 standard (soon to be deployed Dolby
Vision HDR format). FYI, the “4:4:4” you keep hearing about
May 2017
is representative of an image that broadcasts a higher
volume of unique colours per independent pixel than 4:2:0,
for example.
• Resolution (Total pixels per frame including blanking
pixels; 1080p, 4K, etc.)
• Frame Rate (Frames/s; 24fps, 60fps etc.)
• Bit Depth (Total bits per pixel component; 8bit, 10bit,
12bit, etc.)
• Sub-Chroma sampling (i.e., 4:2:0, 4:4:4, etc.)
Fig. 2 HDMI bitrate factors
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Corralling the 18G Beast
Fig. 3 HDMI aggregate bitrate formula
Compressed vs. Uncompressed. Calling it like it is.
Ok, now 18G is here to stay, and this may come as a
shock to many, but here it is. Nothing running over CATx
cabling is 100% uncompressed at the highest bandwidths
available in the latest HDMI 2.0b specication. Even the
Category cabling connectivity solution of choice essentially
shoe-horns the additive bandwidth on anything over the
9Gbps aggregate bitrate (refer to Fig.4) under its maximum
ceiling of internal bandwidth capabilities, meaning the only
real uncompressed signal goes up to 4K30 10bit 4:2:0
(HDR10) with this solution. So all of those new UltraHD 4K
60fps HDR movies will indeed compress the image. Note:
other IP-based HDMI connectivity variants may compress
all video formats, not just bitrates over 9Gbps.
It doesn’t matter if it says “light compression” or “visually
lossless” or “virtually lossless” or “*No” compression (aka,
follow the asterisk to nd that “No” apparently means
“Some”). It’s compressed. When I was a kid, standing
in front of a lamp with a crack in it - tennis ball in hand, I
tried getting away with saying “it’s KINDA broken”, sadly
this didn’t pass my mother’s standards and nor should it
with all of you on the front lines in the eld.
Now, let’s look on the bright side, for all involved in creating
these Category cabling HDMI solutions, good work!
There was a problem, and you solved it! Most of the truly
uncompressed 18G solutions (including our very own
May 2017
Fig. 4 HDMI format to bitrate correlation
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Corralling the 18G Beast
PXLDRIVETM) are great at delivering every pixel 1:1 as it was
meant to be viewed but cannot come close to competing with
the incredible advantages that come with Category cabling
extenders. 100m range, convenient onsite termination and
all those peripheral connectivity benets – incredible!
“ There is absolutely no reason for
a truly uncompressed HDMI link
not to exist in every home cinema
or ‘in zone’ installation with the
options available today.”
Furthermore, anybody running ‘out-of-zone’ should feel
happy about running CATx cabling, not a horrible trade-
off to accept compression at the higher 4K bandwidths
considering all the advantages mentioned above with the
solution as a whole. Once again, for in-zone – say up to
20m, uncompressed solutions will always be there.
solutions as long as it is evident where the dividing lines
are as to which applications they are most suitable. So,
here is my rm stance on the matter. There is absolutely no
reason for a truly uncompressed HDMI link not to exist in
every home cinema or ‘in zone’ installation with the options
available today.“
Enter PXLDRIVETM: The in-zone uncompressed 18G solution
So today, staring directly at the mandate of all HDMI
interconnect being able to support a complete 18G HDMI
ecosystem, these “garden hose” HDMI cables are either
sitting in walls (mostly useless on their own) or are once
again being deployed in new installs, usually the most
economical solution.
On the side of actual
uncompressed
HDMI, as mentioned,
I rmly believe that
there is an excellent
t for all different
HDMI connectivity
Enter PXLDRIVETM, a signal recovery method that I have
personally put over two years of my working life engineering,
rening and perfecting. PXLDRIVETM is a detachable dongle
placed at the display end of an HDMI link with the ability
to revive uncompressed HDMI signals up to the maximum
18Gbps bitrate over new or pre-existing passive long reach
HDMI cables.
If we look simply at the retrotting application (cables
already residing in the wall), it is clear the industry requires
a highly effective detachable active implementation to
resurrect these cables. PXLDRIVETM is the perfect answer.
PXLDRIVETM is highly robust, interoperable and as a bonus
supports long reach HDMI cables that can be thin and
convenient to pull in new install scenarios due to its industry
leading 18G gain curve implementation. PXLDRIVETM is an
interconnect solution that acts in every way like it is a 1m
cable regardless of its actual length, say up to 20m (all low-
speed features, all high-speed formats, including 18G). Yes,
100% uncompressed. PXLDRIVETM is attempting to enable
a long range tip-to-tip solution that is essentially a long ‘short
cable’. See Fig.5. Truly one of a kind.
TM
Fig. 5 PXLDRIVE
Max 4K Interconnect System
PXLDRIVETM uses an adaptive equalizer and retimer
block to maximize its effectiveness as a robust HDMI
retrotting product. See Fig.6. Each block is critical to
ensure the maximum throughput of an 18Gbps signal
can be correctly restored to achieve 4K60 8bit 4:4:4
and 4K60 12bit 4:2:2 signal delivery through to the
HDMI display over long distances. It has been validated
to be the most highly interoperable recovery module in
the market and has achieved the rst long reach THX
Certied 4K Interconnect distinction. It uses what I call a
“bit-in, bit-out” methodology (get a bit, regenerate a bit,
May 2017
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Corralling the 18G Beast
clean the bit, send the bit) – no digital processing or native bit manipulation
in any way and certainly no need for rmware updates. Future proofed to
HDMI 2.0b standards out of the box and completely plug and play. Did I
mention that PXLDRIVETM can also power itself with any available USB port
on the HDMI display itself? Shameless, yet very necessary sales bullet
there.
How does PXLDRIVETM work?
PXLDRIVETM Adaptive Equalization
“ PXLDRIVETM has been validated to be
the most highly interoperable recovery
module in the market and has achieved
the rst long reach THX Certied 4K
Interconnect distinction.”
PXLDRIVETM utilizes an adaptive equalizer device that
adjusts frequency dependent gain automatically depending
on the amount of loss detected in the channel. Simply
put, the adaptive equalizer block operates by applying
the appropriate gain for any given loss (also known as
attenuation). The benet of a truly adaptive EQ is that it can
detect cable length based on a simulated model of what a
physical cable looks like regarding attenuation (or loss) and
can smartly apply the inverse gain.
Conversely, the clear majority
of native HDMI 18Gbps
recovery methods (Active
cables/dongles), utilize xed
equalization. This strategy
sets a typically high gain state
permanently for the frequencies
required to be regenerated. In
the case of Active cables (chips
inside the cable head itself)
the length is known, therefore
a pre-determined gain setting
may be applied. Unfortunately,
this is STILL not enough to
guarantee reliability as there is
no retiming function post-EQ
(as there is limited PCB real
estate inside the cable head itself). Some
detachable signal recovery boosters apply a permanent
high gain state (xed EQ) for the frequencies required to
be regenerated and may fall short if an HDMI cable is not
long enough for example. In this case, this can lead to over
equalization in conict with the HDMI input EQ stage of
the display itself (which may be adaptive or xed, really no
control over which). In my opinion, xed EQ boosters are
not an acceptable solution for retrotting applications for
this reason. Furthermore, with external (detachable) HDMI
boosters, there is a misconception in the industry that the
equalizer needs to be perfectly tuned to cooperate with
HDMI inputs to which they are connecting to directly (TV/
Projector end), both to function efciently and maximize a
robust interconnect. This, however, is not the case. This
previous statement is only true if a retimer device is not
placed between the front end EQ recovery block of the
extender unit itself and the internal HDMI display EQ. If the
retimer block exists on the external extender, then
Fig. 6 Detachable 18Gbps HDMI equalizer strategies
an adaptive EQ with very high gain (and low gain) capabilities
can be applied without issue. (refer to Fig. 6 Detachable
18Gbps HDMI Equalizer Strategies)
Other solutions in the market that solely utilize ‘EQ-only’
techniques (without a retiming block post-EQ) can be
susceptible to conicting EQ states. For example, the EQ
setting within the dongle or active cable will conict with
May 2017
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Corralling the 18G Beast
another internal EQ within the HDMI display which may
be inches away from one another in application (in the
example of an active cable) and will get confused. This
double-EQ effect can create havoc on the system; same
old sparkles, streaks and blinking. In fact, other HDMI
extender solutions in the market purposely lower the
EQ gain level to ensure that there is as little conict as
possible between EQ’s. In this scenario, you may now
be sacricing longer HDMI cables from having the ability
to be successfully resurrected when upgrading to 18G
capabilities.
PXLDRIVETM Retiming
PXLDRIVETM uses a retiming device directly after the
adaptive equalizer stage to ensure that the high-speed
data is completely restored to HDMI source worthy
specication (refer to Fig. 6). The Retiming block operates
by regenerating a signal by phase aligning a reference
clock to the incoming signal and clocking out the signal
using the phase aligned reference clock so that the output
signal has less jitter than the input signal. Essentially this
like bringing your 18G capable UHD Blu-ray player directly
to the HDMI display.
A retiming block (also referred to as a CDR) ensures that
the rst equalization stage (connected to the unknown long
HDMI cable) is always completely isolated from the HDMI
display itself. This is what makes PXLDRIVETM completely
one of a kind in terms of effectiveness and overall reliability.
No window of acceptable cable length and no conicts
between the extender (PXLDRIVETM) and the display it is
being connected to. Another highly benecial PXLDRIVE
feature that is built into the retiming block is ‘de-skew’.
Essentially de-skew realigns all of the three TMDS pairs
to compensate for long twisted pairs over long HDMI cable
runs (Equalizer-only solutions obviously have no way of
accommodating for this). Moreover, by resetting all signal
pairs to mimic what an HDMI source looks like (both in
TM
IMPORTANT: When I say “length”, it is far more accurate
to look at cables in terms of “loss” as even if you put ten 5m
cables side by side, they can all have dramatically different
attenuation/loss results. Therefore providing windows of
HDMI cable length adaptability is completely misleading.
It’s an estimate nevertheless, but rest assured adaptive
equalization takes all the guess work out of it.
jitter eye quality and signal to signal skew alignment),
PXLDRIVETM allows for multihopping applications as an
added convenience to the end user. This means that you
can apply multiple PXLDRIVETM “hops” one after the other
if you need to go further than 15m, even at 18Gbps. Even
if you’re not multihopping, by resetting the output signal to
look like the HDMI source, you can also run up to 5m from
the PXLDRIVETM unit to the display (20m in total).
It is critical that a retiming block is implemented in any
external HDMI recovery circuit (i.e. between the external
“booster” EQ and the display EQ). As already mentioned,
most HDMI extension solutions in the market today do not
utilize this critical Retiming function. This will be evident
if the specs say anything about a window of allowable
HDMI lengths that need to be applied for proper operation
(“Between 5m and 15m, for example”). Truth be told, giving
a window of acceptable cable lengths is tough to quantify
to the end user. Installers likely have no idea how long the
cable is. Furthermore, even if the length is known, all
cables have different physical loss characteristics based on
the aforementioned mechanical characteristics anyways.
So how does this applicable length window make any
sense to the installer?
Real world cable retrotting shootout testing
We decided to evaluate approximately 20 random passive
long reach HDMI cables (some purchased, most donated)
connected to PXLDRIVETM in comparison to a common
18G extender in the market today. See Fig. 7. Truly apples
to apples. We used four readily available HDMI 18G
May 2017
capable UHD sources and a single 18G 4K60 4:4:4 capable
HDMI display. Here is what we learned - PXLDRIVETM’s
auto-adaptive solution could; A) recover more short cables
regardless of gauge (cable that still didn’t operate at 18G
on their own), B) recover more mid-range
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Corralling the 18G Beast
cables with more 18G source types and C) Still resurrect
the longer HDMI cables. See Fig. 8.
As we performed this exhaustive sweep over several days
in our lab, the real value of PXLDRIVETM and specically
the adaptive EQ implementation became abundantly
clear. These “long” thick cables in many cases looked like
shorter cables to PXLDRIVETM – which is no problem at
all. However, the xed equalization implementation of the
competing HDMI booster created failures consistently as
there was too much gain for too short a cable length.
Fig. 7 Long reach HDMI cables used in retrotting test
An interesting revelation occurred during this testing that
inadvertently made me respect the product even more. In
my mind, I was always in the mindset that all random HDMI
cables buried away in walls out there had high loss, but
this simply isn’t the case – remember most were just going
thicker to reach in the 1080p days! For example, one (very
thick) 12.2m/22AWG HDMI cable we tested technically
“For example, one (very thick) 12.2m/22AWG HDMI cable we tested technically lumped itself into
the “shorter” cable category as an EQ stage only looks at the HDMI cable in terms of loss and thus
this cable “looked” like a shorter HDMI cable through the EQ’s eyes. “
lumped itself into the “shorter” cable category as an EQ
stage only looks at the HDMI cable in terms of loss and
thus this cable “looked” like a shorter HDMI cable
through the EQ’s eyes. “It’s easy to see that this underlines
the importance of Adaptive Equalization. Shorter, mid-
range and long HDMI cables regardless of gauge will have
a shot at 18G. PXLDRIVETM does the heavy lifting for you.
May 2017
Fig. 8 Detachable 18G extender shootout results
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Corralling the 18G Beast
The THX® Certied 4K Interconnect Advantage
As you may have noticed, there are many 3rd party (HDMI
post grad) test options popping up these days. In my
opinion, any active HDMI interconnect (anything that is not
100% a passive HDMI cable) can fall victim to active-centric
issues and these issues can arise in many ways outside
of the product simply having a beautiful eye diagram and
sharp DDC signal edges. Active implementations can fall
victim to power cycles, hotplugs, random dropouts or all
out interoperability issues in-line with the HDMI equipment
itself. For this reason, we selected the THX® Certied
4K Interconnect program as it set itself apart in these key
areas outlined in Fig. 9. It is the only program that focuses
on an appropriate balance of electrical parametric testing
and real-life interoperability required for active interconnect
such as PXLDRIVE™. In our case, PXLDRIVE™ (active
extender) was put through it’s paces in a way that helped
us achieve as much of a real-world guarantee of reliability
and robustness as possible and all the while at the highest
bandwidths. As mentioned earlier, we spent a ton of time
making sure PXLDRIVE™ would be engineered as the
most robust long range 4K interconnect in the market and
the good name of THX helps reect this quality through it’s
vigorous test procedure and attention to detail.
THX® Certified 4K Interconnect Test Test Details
18G TMDS Pixel Error Analysis
Fitness to Application Testing
Full HDMI Protocol Functional Testing Application based ARC, HEC & CEC validation
HDCP Burn-in Verification In system burn-in of HDCP handshaking
TMDS Jitter/Eye Analysis Increased pass/fail margin applied
Low-speed DDC (HDCP) Communication Analysis Confirming proper setup and hold timing
Fig. 9 Key differentiators for THX® Certied 4K Interconnect testing
Conclusion
For now and the foreseeable future, I believe the HDMI
2.0b specication provides us all with an incredible end user
experience. With PXLDRIVETM, our goal was to deliver this
same experience over long reaches in a smart, clean and
economical fashion. We set out to create a versatile 18G
restorer tool to revitalize an otherwise useless HDMI cable
on it’s own for that one zone to which there should be no
compromise, thus no compression. So for that moment
where you realize that the cable is in there for good,
PXLDRIVETM provides the ultimate ‘Get-out-of-jail-free’ card.
In a way, 18G enabled HDMI 2.0b connectivity solutions
Ensuring that each bit is deemed 100% uncompressed
and for an extended period of time
Interoperability, power sequencing, hot-plugging &
equipment down/up power recovery
have matured to the point where there are a ton of great
options out there to support both uncompressed and
compressed long range links. However, in a more accurate
way, we the “long reach enablers” are already venturing into
the very new HDMI 2.1 8K landscape which will demand the
monstrous 48Gbps - and for this it’s a whole new ball game.
If you listen closely you will hear the sound of hundreds of
hardware engineers ipping through their IC vendor phone
books searching for answers.
Teaser: Pixelgen is ready. Game on!
May 2017
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