Professional Audio and Video Capture Card
Advanced Graphics Display Technology
The VisionAV-HD has three independent video capture
Triple channel PCI Express capture card
inputs - two supporting High Definition capture and a
4 Lane PCIe bus, Net 1.6 GB/s total capture bandwidth
third supporting Standard Definition composite video. The
Frame buffer memory - 2 x 256MB
Direct DMA to graphics memory of third party graphics
VisionAV-HD also adds multiple channels of audio capture,
which can be synchronised in software using time stamping
with all video capture channels.
Both DVI High Definition inputs support HDMI, DVI, RGB
and Analog Component (YPbPr) input via a DVI-I connector,
at resolutions up to 4096 x 4096 pixels and supports 1080p
(1920 x 1080) at 6o frames per second.
Standard Definition is input as composite video on a single
RCA connector and can auto-detect between PAL, NTSC
Balanced (XLR) and Unbalanced (RCA) audio capture
from optional audio module (AM2)
All standard Vision range features
Datapath unified Windows driver supports XP and later
operating systems and all Datapath PCIe capture cards
Datapath Linux driver supports common Linux
distributions (audio support*)
and SECAM formats.
The VisionAV-HD captures all three video channels
Two DVI-I Capture Channels:
simultaneously and triple buffers them into onboard
HDMI/DVI/RGB/YPbPr video capture
HDMI embedded Audio Capture and streaming
Low input to 0utput capture latency
storage for tear free video, alongside an audio stream that
can be selected from one of the HDMI or one of the analog
audio ports. This data can then be processed and copied
using DMA transfers to the host system for display, storage
or streaming.
W W W. S T E M M E R- I M A G I N G . C O M
SD/Composite Capture Channel
PAL, NTSC, SECAM up to 720 x 576 @16 Bit colour
DirectShow drivers for WDM Streaming driver supports the
following applications, to encode, record and stream video
over networks or the Internet:
Microsoft Media Encoder®
Any other DirectShow encoding software
For streaming applications, the VisionAV-SDI can be used
with Windows Media Encoder to compress and stream
captured video. To replay the video, use Windows® Media
Timestamp support for streaming synchronisation
Synchronisation of multiple inputs across multiple
Synchronise systems using network clock
For edge blending and other applications
Flexible and configurable EDID Management
Allows programming of custom EDID parameters for
Capture cards
Any application compatible with Windows® DirectShow
technology can use the VisionAV-HD due to it built-in WDM
Input and output connection via the Audio Breakout cable
which is supplied with the optional AM2 audio module
attached to a 15 pin high density D-type connector on the
Audio Module. The physical connections comprise of:
Left and right balanced audio input on female XLR jacks
Left and right unbalanced line inputs on female RCA
Left and right unbalanced line outputs on female RCA
connectors for direct passthrough of selected analog
Low Input to Output Capture Latency
DMA to third party graphics vendors back and front
buffers via Direct3D
Flexible input/output mixing capabilities.
Compatibility with AMD DirectGMA
Supports audio capture to the PCI Express bus at popular
sample rates from 44.1 to 96 ksamples/s at 16 bits/sample.
Compatibility with Nvidia GPUDirect
Playback and mixing of HDMI embedded audio.
Enables cropping support in DirectShow on all inputs
Supports Start and Stop trigger interface on all Visi0n
The VisionAV-HD is supplied with a powerful sofware
application for configuring the format of the input sources
and displaying the data.
Simply connect your video source into the card, run the
VisionAV-HD application to automatically detect the
video source format and display the captured video in a
window on your desktop.
W W W. S T E M M E R- I M A G I N G . C O M
User Mode filter for source selection
Datapath Unified Vision Driver
Multiple cards per system, 16 streams per
Frame sync and time stamping
DirectShow interface
The RGBEasy API for advanced audio and video
Fully integrated for use with Datapath Wall
Control software for video wall applications
Datapath’s MultiStream feature is available on all Datapath Capture cards and enables multiple independently
formatted video streams to be setup in parallel.
Each stream can be formatted completely independently and individual selection of resolution, colour space, and
cropping region can be set for each stream. This maximizes bandwidth utilisation of the capture card PCIe interface,
and also simplifies development tasks for application developers who does not need to implement video stream
reformatting separately
When the VisionAV-HD is used with a Datapath graphics card, it is able to transfer the data directly to the graphics card thereby
increasing performance and allowing both sources to be viewed at full frame rate.
When the video data is displayed on a non-Datapath graphics card, the VisionAV-HD may still be able to boost performance by
using the graphics card’s DirectGMA interface to transfer directly to its off-screen memory, for example AMD DirectGMA and
Nvidia GPUDirect. This is dependent upon the graphics card driver software capabilities.
The VisionAV-HD is an ideal solution for applications that require both a real time camera feed, with synchronised audio, as well
as high resolution image capture at full frame rates.
HDMI/DVI/RGB/YPbPr/SD/Composite Video Capture Card *
* Adapters for other types of video connectors such as DVI to HDMI, DVI to VGA or DVI to Component are not included with the
VisionAV-HD but are available from Datapath, contact our sales team for details.
All products are shipped with the latest software available, unless stated otherwise. Special requirements may be organised by
contacting our Sales team.
W W W. S T E M M E R- I M A G I N G . C O M
Board Format
PCI Express x4 half size plug-in card, 110mm x 170mm.
Connectors (main board)
2 x DVI-I , 1 x RCA (female)
HDMI Capture
Supports HDMI 1.3 to 225MHz (including deep colour modes). For HDCP support,
contact the Sales Dept at Datapath for more information
HDMI audio can be selected as source for audio streaming.
Incorporates TMDS equalizer to support up to 20m cables.
DVI Capture
Supports DVI 1.0 RGB 24bit capture to 165MHz.
Incorporates TMDS equalizer to support up to 20m cables.
VGA / YPbPr Capture
Triple ADCs sampling up to 170Msps. Full 4:4:4 sampling, 8 bits per colour.
5-wire, 4-wire or sync-on-green signal formats.
Composite Video Capture
CCIR601 sampling. PAL, NTSC, SECAM formats automatically detected
Audio Capture
Stereo Line-In/Stereo balanced inputs with programmable gain (+/-12dB)
16 bit sampling at 44.1/48/96kHz.
Video Capture Memory
256MB high bandwidth frame buffer supports triple buffering of HD and SD video.
Local storage of complex scatter-gather tables for DMA engine (eliminates read
Video Processing
Polyphase FIR scaling engine (7x5) for hardware downscaling and upscaling
Colour space conversion allows captured data to be transferred in any format:
• RGB 16 bit (5-5-5, 5-6-5), 24 bit (8-8-8) or 32 bit (8-8-8-alpha)
• YUV 16 bit (4:2:2)
• Mono: 8bit
DMA Engine
Direct DMA to physical or virtual memory buffers with full scatter-gather support.
DMA bandwidth : up to 800MB/s
16 independent DMA streams:
• Any mix of HD and SD sources, colour space, cropping and scaling parameters
Operating System Support
Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows
Server 2012, Windows 7, Windows 8 and Linux support (not audio*)
See for updates.
Power Requirements
Max current at 12V – 1A
Max current at 3.3V – 1A
Thermal dissipation – 15.5W
Operating Temperature
0 to 35 ºC ( 32 to 96ºF)
Storage Temperature
-20 to 70 ºC ( -4 to 158ºF)
Relative Humidity
5% to 90% non-condensing
3 years
We are continuously developing the technology used within our product ranges delivering outstanding innovative solutions,
therefore the specification may change from time to time.
* Denotes not yet available, contact sales for details
Imaging is our passion.
Gutenbergstraße 9 - 13, D-82178 Puchheim | email:
| Tel:
+44 (0) 1332 294441
Phone: +49 89 80902-0,
FG-DPO17-12/2014 ∙ Subject to technical change without notice. No liability is accepted for errors which may be contained in this document.
Analog stereo line-out for direct passthrough of selected input at up to 64kHz sampling,
sourced from Analog input or HDMI channel
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