There is no denying the fact that in recent years, the power and capabilities of mobile devices have fully allowed them to be sources of quality content for home theater. This is especially true for modern smartphones that use quad-core processors. However, classic HDMI and even its mini and micro versions are not very convenient to use in mobile devices; in addition, tablets and smartphones run out of power very quickly when playing FullHD video.
These problems were completely solved with the advent of a special mobile interface MHL - Mobile High-Definition Link. The interface was created as part of a collaboration various manufacturers within the MHL Consortium organization, and Samsung, HTC, LG and Onkyo were among the first to release products with MHL support. Externally, the MHL interface is a regular microUSB, which can be seen on almost all modern smartphones and tablets.
But the main thing lies in the specifications of this connector, for which a special chip produced by Silicon Image is responsible. The MHL interface allows you to transmit video in 1080p resolution, 7.1 audio without loss of quality (for example, in DTS HD-MA format), protected content (HDCP), and also charge the connected device. Another feature of the interface is the control of playback on a mobile device using the remote control of the TV or receiver. The cable that connects MHL-enabled devices is very thin, since only five conductors are used to transmit the signal in both directions.
Moreover, MHL is not tightly tied to the microUSB connector; manufacturers are free to build the interface “on top” of any convenient connector. The main thing is that the receiving device has an MHL-compatible HDMI connector. To simultaneously transmit HD content and charge a device connected to a regular TV or receiver without MHL support, you can use special adapters with a power supply.
We've sorted out the part located on the mobile device, but what about MHL support on end devices? Among TV manufacturers, MHL currently supports a fairly modest range of models from LG, Samsung and Toshiba. But is it really necessary to support the new standard on a TV if in most cases high-quality content is played on a home theater system? The main thing is that MHL is supported by the key device of the DC - the AV receiver. For example, Onkyo has in its model range There are already three AV receivers (at the time of writing) with full MHL support.
These are the entry-level model Onkyo TX-NR515, the mid-range receiver Onkyo TX-NR616 and the top-class device TX-NR818. Each of them allows you to play high-definition content from modern MHL-enabled smartphones.
These receivers also have proprietary Onkyo InstaPrevue technology, which makes life easier for owners of a large number of sources.
2012 Onkyo receivers with MHL (Mobile High definition Link) support
MHL (Mobile High definition Link)
You can connect MHL compatible smart phone into front panel of Onkyo AVR. You can now share your photos and videos with your family and friends on the bigger screen.
CES 2012 ONKYO INSTAPREVIEW AND MHL ( HomeTheaterMag)
IN technical specifications my phone says:
“Micro-USB 2.0 port with MHL interface support.
You need a special cable to connect via HDMI.”
What is MHL and how to connect?
Mobile High Definition Link (MHL) technology of a mobile audio-video interface combines the functionality of HDMI and MicroUSB interfaces, and is used to directly connect mobile devices to TVs and monitors that support Full HD high resolution.
Thanks to MHL, a mobile phone or tablet can become the “heart” of a home theater.
The MHL specification allows you to transmit 1080p video at 60 frames per second, as well as 7.1-channel digital audio.
Buying modern smartphone or tablet, you can be sure that it is capable of delivering high-definition video at optimal quality.
If your mobile device has MicroHDMI, then you don’t have to think about such functionality.
However, the option with signal transmission via HDMI has one noticeable disadvantage: a mobile device, be it a tablet or a smartphone, discharges very quickly under such a serious load as playing high-definition video.
For MHL connections Two types of cables can be used: passive and active.
Passive MHL cable with MicroUSB and HDMI connectors is used to connect mobile devices with MHL to display devices (monitors and TVs) with MHL support and provides full functionality of the standard.
The list of MHL-compatible equipment doesn’t look very extensive yet, but let’s hope it’s only for now.
Among TVs, MHL support can be found, for example, in models from LG (for example, 47LM8600), Samsung (for example, 46ES8000), Sony (KLV-40EX430), Sharp and Toshiba, Samsung monitors S27B750VS, LG IPS7 series and others.
The active MHL cable provides an additional MicroUSB connector for connecting a power adapter and is compatible with any display devices that have an HDMI port and not having MHL support.
Without connecting an external power source (5V, 1A and above), there will be no signal at the HDMI output.
Sometimes you need to restart your phone when connecting.
The disadvantage is the inability to control the smartphone from the TV remote control.
Instead of an active cable, you can use an MHL adapter, which also has a built-in MicroUSB connector for additional power.
MHL technology allows you to simultaneously view mobile content on a large screen monitor (TV) with full sound playback and charge the battery of the connected mobile device.
MHL does not require any settings or drivers; in the “stuffing” of the mobile device, a special chip is responsible for encoding and data transmission.
MHL, like any data transmission standard, can be implemented in various physical forms.
Currently, the most popular connector in mobile devices is MicroUSB, but in the future, perhaps MHL will be tied to another connector if it gains enough popularity.
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Hi all! As promised, I continue the description of how to connect the phone to the TV. In a previous article on this topic, we already wrote about some methods, namely, about what is needed and what to expect from connecting the format. But these can be said to be already outdated methods. They have been replaced by MHL and SlimPort formats, as well as wireless connection methods.
In this article we will look at another connection method, using a special adapter, what do you need to know so as not to waste money in vain?
Is it possible to connect a phone to a TV via USB?
On the Internet, you may encounter the following misconception: “To connect your phone to a TV via the MicroUsb port on your mobile device, you just need to purchase a MicroUsb-HDMI adapter” - This is far from true. Let's figure out why.
There really is such a possibility. But…. To do this, your smartphone must have not just USB, but USB with MHL support. And as you understand, not all models are exactly like this. Here is a less current list of gadget models with MHL support.
If you don’t go into too much detail, the difference between the ports is as follows. WITH regular USB Can:
- Send/receive data. Photos, videos and more.
- Charge your phone battery.
But USB with MHL extension, in addition to specified functions, is capable of transmitting image and sound signals, and in high resolution. Essentially it's USB and HDMI in one bottle. But still, this is not HDMI in its pure form, since a different data transfer protocol is used. And as a result - a normal entrance HDMI TV I can't process it!
Therefore, it is important to understand that for direct connection, without adapters, the TV must also have an HDMI port with MHL extension. In the meantime, not all models have such an extension.
But if everything is exactly like this with your equipment, both your mobile device and your TV support MHL, then as they say, it’s all in the bag, and you’re in trouble. All that remains is a small matter, you need a cable for connection.
This is not an idle question, you can just miss it in a rush, and the whole point is that there is no single standard among manufacturing companies, but there is a strong desire to make money on accessories.
For example, the latest gadgets from Samsung use a USB connector with 11 pins, while others use 5 pins, so check this point when purchasing. As a last resort, you will have to use a 5pin\11pin adapter, such exist. In all other respects, it is a regular cable, with MicroUSB on one end and HDMI on the other.
So what do we have in its pure form? This is probably the most comfortable (wired) way to connect gadgets to a TV, monitor, etc. In addition to high-quality images up to 4K (Ultra HD) and eight-channel 7.1 sound. synchronization with the remote control occurs remote control, and recharge your phone directly from the TV. The main thing is that both the mobile device and the TV have the HML specification. All that remains is to connect the cable and switch the TV to desired mode through the signal source selection menu. No settings required, just connect and enjoy.
Select the appropriate connector on the TV - HDMI/MHL But what if your mobile device has MHL, but your TV only has regular HDMI?
When can you use a USB/MHL-HDMI adapter?
When the smartphone has USB support MHL protocol, and the TV only has HDMI - this is exactly the case when such an adapter can come to the rescue. This is not just an adapter, it is an adapter that converts the signal from MHL into one that is understandable for a TV that does not have this extension, that is, a TV with simple HDMI. Today, manufacturers offer different options, let's look at some of them.
USB adapter<—>HDMI - This device is active and therefore needs nutrition.
The supply voltage must be connected. To do this, we use the standard charger from your device. You will also need a separate HDMI cable<—>HDMI to connect your TV to the adapter.
Typically, all such adapters are equipped with 5-pin microUSB connectors, except for adapters made by Samsung, which have 11 pins. They are interchangeable using a 5 PIN adapter<—>11 PIN.
In addition, some adapters produced by the above mentioned company for version MHL 2.0 (MHL 2.0 is a version with increased power supply from a TV to a smartphone) do not require external power, they are powered from the HDMI port, but the mobile device will not be charged, and this is a minus.
Active Cable — Another option is to connect your phone via USB/MHL to a TV with HDMI without MHL
In essence, this is the same adapter that requires an external power source, but has a slightly different design. It is made in the form of a single cable with a separate output for connecting power; all electronic filling is located in the body of one of the connectors. The advantage is that there is no need for a separate HDMI cable.
The undeniable advantage of cable connection is high speed data transfer will not freeze. The disadvantage is that the mobile device is “tied” by a cable to the TV/monitor for the length of the cable. If this is critical for you, then it will help you, but that’s a completely different story...
P.S. At the beginning of this article, SlimPort was also mentioned - Functionally and externally, these are very similar devices, but the slim port allows you to output images not only to HDMI, but also to VGA or DVI ports, which in general is losing its relevance.
The MHL cable has not yet become so popular in computer devices, but we already have it. GreenConnect is ready to offer its customers new generation cables. What is the MHL standard, and is it even needed to connect your devices? Mobile High-Definition Link, or MHL, is the new standard mobile video and an audio interface that takes the best from such popular interfaces as HDMI and microUSB. In the era of the development of mobile devices of various kinds, as well as the ubiquitous Full HD high-definition format, a standard such as MHL will come in handy. The direct purpose of the MHL cable is to connect various mobile devices (smartphones, phones, players) to devices that support Full HD high-definition video (TVs and monitors). Also, using this connector you can not only transmit high-resolution video, but also charge your mobile device.
Now let's look at our range and see what MHL cables you can purchase. On this moment We offer to purchase three types of MHL cable: Micro USB to HDMI male MHL adapter cable, Micro USB to HDMI MHL adapter and Micro USB to HDMI adapter MHL-Galaxy S3.
So, Micro USB to HDMI plug MHL adapter cable. As the name suggests, using this cable you can connect mobile devices, such as phones, smartphones, to TVs and monitors with the HDMI standard. This adapter cable supports high-definition video up to 1080p and can also charge a mobile device. By the way, it must be said that 8 channels are used for audio transmission, there is 7.1 surround sound, and the High-bandwidth Digital Data Protection (HDCP) standard is supported.
Micro USB to HDMI MHL adapter is another type of MHL cable, but with a slightly different layout. If we take into account the specification, it is the same as the previous cable: high-definition video transmission, charging a mobile device, support for the HDCP protocol.
Well, the last cable option in our catalog is the Micro USB to HDMI adapter MHL-Galaxy S3. Here you need to pay attention to the Galaxy S3 inscription. The fact is that newest smartphone from Samsung - Galaxy S3, supports the modern MHL standard, so such a cable will definitely be useful to its owners.
Greenconnection is a leading manufacturer of cable products in Russia. For the production of cables and adapters, we use only environmentally friendly materials. The technical department tirelessly monitors the quality of our products, because the main thing for our company is the constant quality of products for our customers.
Slimport what is it
SlimPort is an adapter introduced for the first time by Google to play video. The technology was based on DisplayPort technology. Thanks to this, using SlimPort allows you to broadcast playing video from the device screen to external monitor, display or TV panel. But unlike MHL adapters, it has several advantages in use. One of them is the lack of additional power, and higher quality video playback.Mobile High-Definition Link (MHL) technology first appeared on the market back in 2011. And since then it has been a wired solution for mirroring images from displays to a large television screen portable devices has been implemented in more than 330 million devices, according to data from the MHL consortium. Among the devices that support MHL technology are: computer monitors, car video systems, and of course TVs and mobile devices.
Feature-rich MHL technology supports Full HD video and surround sound, just like the Miracast wireless standard. In addition, MHL also allows you to recharge the connected mobile device, has a negligible time delay and provides the ability to control the mobile device from the TV remote control. MHL version 1.x is still the most widely used, at the same time more and more devices such as smartphones appeared Samsung Galaxy S4 and Sony Bravia KD-55X9004A TV, which supports MHL 2.x.
And in latest version MHL 3.0 added support for 4K video, increased charging current to 2A. All versions of MHL must also support different types connectors, that is, they can work with different interfaces. However, the most common connectors are micro USB and HDMI
What you will need
MHL is an amazingly flexible technology. With an active MHL adapter, you can connect an MHL-enabled smartphone and other sources even to non-MHL-enabled displays. However, the adapter usually has USB port in micro format and requires a separate power source.
Passive MHL cable
If the receiver and source support this technology, a regular passive MHL cable is sufficient. Just remember, you need to use a special input on your TV that supports MHL. MHL technology is plug-and-play, requiring no additional configuration.
While most MHL-enabled smartphones will be compatible with active and passive MHL accessories, there are Samsung smartphones(Galaxy S3, S4, Note 2 and Note 3) which will need a special interface adapter to move from 5 pins to 11. Because in these Samsung devices A special 11-pin micro USB connector is used.
The exception is Samsung's active MHL 2.0 adapter, which allows output of up to 60 frames per second at Full HD resolution. It can be used without an external power source, but does not allow charging the connected mobile device in this case.
Samsung MHL 2.0 active adapter and 5-to-11 contact converter
Please note that the full benefits of MHL 2.0 are only available when all connected MHL devices and accessories support MHL Version 2.
Pros and cons
Compared to Miracast technology and a closed standard Apple AirPlay MHL stands out for its wide range of compatible products, ranging from mobile phone to the car multimedia system and home audio/video equipment. An even more important feature is the use of a wired connection, which minimizes the time delay between images on the large and small screen, thus making the interface more suitable for gaming compared to wireless counterparts. However, the reduced response time also depends on the frame rate of the output video, which largely depends on the settings.
Using a universal active MHL 1.0 adapter, we managed to get only 1080i video output at 50 frames per second (fps) for Samsung Galaxy Note 2 editions of 2012 and a 2010 TV Panasonic Viera VT20. Using the 2012 LG LM9600 television panel with the MHL function made it possible to transmit a 1080p signal. But limited to only 30 frames per second, which makes it practically impossible to play fast-paced games. Frame rates did not improve with the passive MHL cable and Samsung MHL 2.0 adapter. To achieve smoother 1080p@60fps video, we connected an MHL 2.0 certified Galaxy Note 3 to the LM9600 via an MHL 2.0 adapter.
Click on the picture to enlarge it
Please also note that the 500mA current provided by MHL 1.0, including active adapters, may not be sufficient to charge some mobile devices. Therefore, watching a movie or playing a game will drain the battery, although slightly less than in offline mode.
Meanwhile, using a compact mobile device with an MHL adapter, power cord and HDMI cable dangling nearby can be quite inconvenient, and a long passive MHL cable stretched across the living room is likely to be a bit of a nuisance to those around you. We also checked the operation of MHL with Sony smartphones Xperia Z, HTC One And Sony TVs Bravia W954 and Samsung F8000.
conclusions
Given the mediocre performance of MHL 1.x, we would only recommend devices that support versions starting from MHL 2.x that support 50Hz (or 60Hz) frame rates at 1080p resolution, with higher charging power external devices. This will ensure that video from the small display is copied to big screen TV without any visible delay. The latest version of the MHL 3.0 standard with support for 4K resolution is even more promising, although cables that restrict free movement will always be a disadvantage of this technology.
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