4th generation HDMI repeaters with OSD and audio extract/insert

http://www.mds.com
4th generation HDMI repeaters
with OSD and audio extract/insert
- Product Summary -
HSR-82.2
HSR-41.2
Common design
The HSR-41.2 and HSR-82.2 are mechanically compatible with
the 2nd and 3rd generation MDS HDMI products. The same
connector signals are used, though there are slightly different
operational characteristics due to the HDMI parts used.
DDC
EQ
EQ
All use high quality Tyco HDMI connectors to ensure reliable
connector operation over the life of the product.
Audio extract/insert
All MDS HDMI repeater products extract the audio (as four I2S
lines along with a SPDIF line) for local processing. The audio
decoder can then provide a downmixed stereo PCM signal for
the HDMI transmitter.
Outputs
3D
OSD
Audio
Loop
HSR-82.2 8, one with 2, one with
HDCP 2.2 HDCP 2.2
HSR-41.2 4, one with
1
HDCP 2.2 HDCP 2.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DSD ARC CEC
HDMI out
DDC
status / control
GPIO
I2C
Control
micro
I 2C
I2C addr
Sel
I2C
H
INT*
to host
connectors
READY*
OSD
SPI
adds
HDCP 2.2
when needd
CEC
I2CH
GPIO
SiI
Rx
clocks & frame
syncs
OSD flash
(optional)
34
The HDMI inputs and outputs support the mandatory video
features found in the HDMI 1.4 specification, and the Deep
Color (12 bits) at up to 1080p resolution. 4K 60 Hz is carried as
4:2:0 format, which precludes use of the OSD feature.
Inputs
EDID
CEC
3.3V power
4 I2S & SPDIF
HDMI Rx
EQ
CEC
removes
HDCP 2.2
The following table summarizes the HDMI repeater products
available from MDS. All inputs feature adaptive cable EQ that
supports (typical, for good quality source and cable) 10m at
the highest supported data rate.
Model
DDC
DDC
Product Details
control and
audio to host
EQ
4:1 MUX
With MDS modules manufacturers can have solutions ready
for markets with minimal development. Manufacturers can
focus on the user experience and “front panel” and “rear
panel” design and avoid the headaches of the high speed
design and the complex software for HDMI processing.
I2C
ADV7625
CEC
HDMI in
Built with the latest HDMI technology from Analog Devices
and Silicon Image, MDS OEM HDMI repeater modules for AV
applications offer a unique set of features for audio use.
26
CEC
up to 36 data lines
(4:4:4 12 bit format)
First generation HDMI products supported 165 MHz pixel
rates; which allowed 1080p 60 Hz vide with 8 bit/component
color depth. Second generation HDMI products supported
225 equivalent pixel rates, allowing for 1080p 60 Hz video
with more than 8 bits/pixel. Third generation HDMI products
support 300 MHz (equivalent), allowing for 4K 24/30 Hz video.
The 4th generation product adds support for 4K 60 Hz
and HDCP 2.2 encryption, which the film studio industry
now requires for viewing of their 4K content.
SiI
Tx
HDMI Tx
CEC
from
HDMI
out
4 I2S & SPDIF
ARC
clocks & frame
syncs
5V power
Output audio
from host and
SPI/OSD
CEC
processor
SPDIF
HSR-41.2 Block Diagram
The software API for the HSR-41.2 and HSR-82.2 are likewise
a superset of the earlier generation products. This commonality in hardware and software allows system designs to easily
incorporate any MDS HDMI repeater product.
Other products
MDS’ HDMI experts are available to help create custom products as well as work with your engineering team to support
your own product development.
MDS also offers large HDMI matrix cross-bars such as our
HXBAR-88 and 1616 (8 in 8 out, and 16 in 16 out) any to any
switcher/repeater with independent audio routing.
Notes: ARC requires CEC. CEC not defined for more than one output.
Off the shelf platforms for HDMI applications
HDMI switcher/repeater modules
Flexible output control
An HDMI device with 2 outputs may not function well in the
real world if it simply assumed the two connected HDMI sink
devices support the same capability. For example, an HDMI
source might need to route to an audio system and a projector. The projector might only support stereo PCM audio.
If the repeater blindly took the lowest common format
among the connected sink devices, the audio system would
always be fed 2 channel PCM data by the source instead of
surround sound (compressed) data.
HSR-41.2 HDMI switcher/repeater
The HSR-82.2, with its dual outputs, can be told to assign
input audio formats from different sink device capabilities to
determine what the HDMI source should send (as determined when the source device reads the EDID).
ing services to assist with creation of custom host created
OSDs.
HDCP 2.2
Four input, single output repeater
Both boards offer one HDCP 2.2 input to support the latest
4K media devices. A Silicon Image IC is used to strip HDCP
2.2 so that the HDMI data can be processed by the ADV7625
(chips with integrated HDCP 2.2 and the audio/OSD features
are not commercially available yet). A second Silicon Image
IC is used to add HDCP 2.2 on the output when needed.
On the HSR-82.2 one output is available with HDCP 2.2,
which means the second non HDCP 2.2 output will not carry
any video content if the selected input has HDCP 2.2 applied.
Customers not needing support for HDCP 2.2 should consider MDS’ HSR-41 and HSR-82 products, as they are less
complex and therefore less costly.
Note that HDCP 2.2 introduces a large number of new
restrictions on viewing content and can lead to unexpected
problems in whole home or commercial installations.
OSD
The HSR-41.2 and HSR-82.2 can overlay a basic “ASCII text”
OSD on 2D video (excluding 4K 4:2:0) format). MDS provides
two default high level OSD functions, one to display arbitrary text at up to 9 places on the screen (typically for showing input source,
status, etc.) and the
other for a volume
control type bar indicator.
More complex OSDs
with
icons
and
menus can be created
by
directly
using the features of
the
ADV7625’s
BLIMP
software.
MDS offers consult-
MDS offers a four input, one output switcher/repeater modules, the HSR-41.2.
The HSR-41.2 can loop audio from input to output; for AV
Receiver applications the general mode of operation is that
the decoder would be fed the (Dolby/DTS) encoded input
and supply a stereo (PCM) downmix for the sink device.
Mechanically the HSR-41.2 can mount into the same set of
holes as the HSR-82.2, simplifying chassis designs when two
different configurations may be desired.
The HSR-41.2 supports pass through of the mandatory 3D
formats defined in the HDMI 1.4a specification. The ARC feature is supported but requires a full CEC implementation of
the Audio System logical device as defined in the HDMI 1.4a
specification.
Eight input, two output repeater
Many AV applications require sending video to one location
and audio to another; alternately the need may be to send
video to two different locations, for example a main screen
in the home theater and a second TV in the kitchen area. The
HSR-82.2 provides two outputs to remove the need for an
external HDMI splitter/repeater.
Note that CEC and ARC are only supported on the primary
output, the CEC specification does not support multi-output
repeaters.
Since the HSR-82.2 has audio loop through capability it can
be used as a standalone HDMI matrix switcher repeater. This
option requires different firmware for the board, please contact MDS for details. Only a power supply and a small microprocessor for a front panel and/or external control interface
are needed to make a complete system.
Custom OSD example
PRELIMINARY - SUBJECT TO CHANGE
5432 Bolsa Ave, Unit B, Huntington Beach, CA 92649, USA
Phone: +1 714-378-5805
http://www.mds.com
HDMI switcher/repeater modules
Evaluation kit
CEC
secondary out
removes
HDCP 2.2
SiI
Rx
CEC
processor
EQ
To gain experience with integrating MDS
HDMI products into your system design,
MDS offers an evaluation kit that includes
the selected HDMI repeater board and the
adapter board shown on the next page.
I2C
ADV7625
EQ
CEC
in & primary out
ADV7625
EQ
4 I2S & SPDIF
primary
SiI
Tx
5x2
HDMI
repeater
and OSD
EQ
Using this board and the provided software the HSR can be controlled and configured without the need to have your
own host application code running yet.
control and
audio to host
clocks & frame
syncs
EQ
EDID
I2C
HDMI out
EQ
HDMI in
CEC
processor
EQ
26
5x2
HDMI
matrix
switch
EQ
adds
HDCP 2.2
when needd
EQ
secondary
4 I2S & SPDIF
EQ
34
EDID
clocks & frame
syncs
SPI
Output audio
from host and
SPI/OSD
OSD flash
optional
status / control
Control
micro
I2C
GPIO
I2C
GPIO
I2C
34
SPI
I2C addr
Sel
I2C
H
INT*
Secondary
Audio
to host
connectors
READY*
HSR-82.2 Block Diagram
Developing with MDS HDMI modules
MDS offers an evaluation kit that provide everything needed
to evaluate the modules and start code development on
your host processor.
Pass through connectors allow connecting to your audio subsystem but still use
the MDS provided GUI software for control and status monitoring. Alternately the
EVM board can be setup for loopback of
received HDMI audio to the output.
An audio DAC is connected to the primary
I2S input line to allow playback of 2 channel stereo PCM without need to connect
external devices. Likewise a SPDIF in and
out allows for easy experimentation
before connecting into a more complex
system.
Board integration
The boards require 3.3 and 5V power, if
CEC is used these supplies must be provided when the system is in standby (depending on the
model, standby mode power draw is less than 350 mW).
The kit include the module (mounted to a base), interconnect
cables, power supply, a (generic) host side API library, and a
microprocessor based demonstration program to simplify
experimentation.
In addition to the I2S related signals, connection to I2C clock/
data, and the (board to host) interrupt line are needed. The
board’s reset input should only be released once the supplies are stable and the host is ready to start interacting with
the board. For full details the relevant hardware manual
should be consulted.
Host connectors
MDS HDMI testing of a final unit
A 26 pin IDC (.1”) connector carries primary 3.3V power, the
I2C control signals, and the audio signals received by the
card.
MDS must be supplied with a final unit to run a range of
mandatory HDMI tests to ensure conformance with the
HDMI licensing rules. Customers with their own HDMI
license can do their own family product self certifications.
Note that the audio data may be invalid due to the source
creating bad data or things like cable disconnects. Users of
the audio data should check status to mute during recognized invalid data periods and be prepared to handle audio
clock discontinuities.
MDS Alpha messaging control protocol
All products uses the same I2C based messaging protocol
used on other MDS OEM products. Users of those products
will find the HDMI modules easy to control; users new to the
MDS alpha messaging protocol can start with supplied C++
based examples that can be recompiled to run on typical
embedded 32 bit microcontrollers.
Two levels of testing are possible, a basic test for cases
where CEC is not being used, and a combined basic plus
CEC test for units that will use CEC (use of ARC requires
CEC). Typical test periods run from 1 to 3 days, unless problems are found, which is unlikely in the basic tests but possible in the CEC test as the host software must process and
respond to a range of possible CEC messages.
PRELIMINARY - SUBJECT TO CHANGE
5432 Bolsa Ave, Unit B, Huntington Beach, CA 92649, USA
Phone: +1 714-378-5805
http://www.mds.com
HDMI switcher/repeater modules
Ordering information
Related products
Minimum order quantity of standard OEM boards is 50
pieces. Please contact MDS’ OEM sales manager for details.
#-EVM-KIT: Add this suffix to the above for the developer/eval
kit
HSR-82.2: 8 input, dual output HDMI switcher/repeater.
HDMI 1.4a mandatory 3D formats
Up to “4K” pixel rates at 24/30 Hz (4:4:4)
4K 4:2:0 format video at 60 Hz (no OSD)
Up to 12 bit Deep Color
Color Gamut Metadata (xvYCC color space) supported
Audio extraction/injection (I2S standard) and loop through
CEC switch and Audio System device support
ARC (primary output)
OSD (built-in & custom)
MDS custom HDCP code to minimize blackouts when sinks change
state
HTEST-BASIC: HDMI product family self certification test
HTEST-CEC: For HDMI product using CEC (or ARC), verification of proper CEC handling
HSR-41.2: 4 input HDMI switcher/repeater.
Licensing
HDMI 1.4a mandatory 3D formats
Up to “4K” pixel rates at 24/30 Hz
4K 4:2:0 format video at 60 Hz (no OSD)
Up to 12 bit Deep Color
Color Gamut Metadata (xvYCC color space) supported
Audio extraction/injection (I2S standard) and loop through
CEC switch and Audio System device support
ARC (primary output)
OSD (built-in & custom)
MDS custom HDCP code to minimize blackouts when sinks change
state
These products use licensed technologies and are only available for sale to authorized audio / video companies. Please
contact MDS for more information.
Trademarks:
Dolby is trademark of Dolby Laboratories, Inc., DTS is a
trademark of Digital Theater Systems, Inc. HDMI, the
HDMI logo and High-Definition Multimedia Interface are
trademarks or registered trademarks of HDMI Licensing
LLC.HDCP is a trademark of Digital Content Protection,
LLC.x.v.Color is a trademark of Sony DAE and DAE-6D
are trademarks of MDS.
Note that the actual allowed input format is determined by the sink device(s)
connected to the unit, the above descriptions define the maximum available
capability.
To HSR: processed audio
from host, Power, SPI
30 / 34 pins
4 I2S data clocks &
30
frame syncs, mute,
TTL level SPDIF
Mode
Control
9-12V DC
OFF
9 10
CPLD
SPI
10
CPLD
programming
I2C
DAC
Out
Status LEDS
I2C
4 I2S data clocks &
30
frame syncs, mute,
TTL level SPDIF
From customer’s ADC
eval board
26
HSR-EVM
8
CS0 - HSR
CS1 - CPLD
interface
processor
LPC1758
4 5ON 6 7
GPIO
3
I2C
stereo
DAC
+5
SPDIF
in
Reset
Serial
I2C
+3.3
2
power
supplies
SPI
USB
SPDIF
out
HSR test
port
From HSR: received
HDMI audio, Power, I2C
26 pins
1
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• Selected board
• IDC cables
• Eval adapter board with USB port to I2C feature to allow control from a
PC ‘terminal’
• Control API documentation
• Example code
• Connector, power, and mechanical information
• Power supply (110/220 universal input brick)
To customer’s DAC eval
board
Eval kit adapter board
PRELIMINARY - SUBJECT TO CHANGE
HSR 4th gen datasheet rev 1b Sep 15
5432 Bolsa Ave, Unit B, Huntington Beach, CA 92649, USA
Phone: +1 714-378-5805
http://www.mds.com