Ultra fast digital pattern capture and generation
Information on all the Spectrum
PCI-Express digital cards, capable of capturing or generating digital patterns at
very high speeds up to 32 bits wide.
The M4i.77xx digital capture cards have
the enhanced capability to work with a wide range of logic signal levels.
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Spectrum M4i programmable digital input cards
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Using a high bandwidth multi-lane PCI Express Gen 2.0 interface, real
time data streaming with the PC is greatly enhanced at over 3 Gbytes per second.
This makes the M4i.77xx card series of particular value when recording patterns of
bus wide digital signals for long periods at ultra-high speed. The universal
logic level compatibility of range -3V to +5V covers many standards including
LVDS, LVPECL, PECL, (N)ECL, and comes in single-ended and differential input
format. Utilising the very latest digital technology, this card series provides
exceptionally fast signal digital sample speeds of up to 720 mega bits per second.
Bit pattern capture can be single shot or in a loop.
Up to eight cards from M4i.77xx series can be perfectly synchronised
to provide up to 256 digital channels. They also have many useful features
to allow pattern and gated triggering, plus time stamping of these triggers.
Building on the success of the previous generation of the M2i digital
capture cards, the M4i series shares the same well proven software driver set.
This follows the practice of supporting both existing and new users. The versatile
Windows® and Linux® drivers support all popular text programming languages,
as well as packages such as LabVIEW® and MATLAB®. For easy capture
and analysis
SBench6 Professional software is available as an option. This has
a logic analyser window for comparison of multiple bit pattern streams.
Menu driven no programming is required.
We also provide multi-purpose digital I/O options which can be added to the
Spectrum's exisiting range of M2p digitisers and AWG cards.
More information on the M4i.77xx series and the digital I/O options can
be found by following the image links in the tables below. |
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Spectrum M4i.77xx series cards feature summary. |
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Signal data input ports up to 32 bits wide |
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Data width on the cards ports is software programmable |
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Synchronisation of multiple cards using the Star-Hub option extends the bit width even further |
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Large standard memory of 4 GBytes |
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Versatile trigger features, including fast auto re-arm |
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Multiple Recording, Gated control, pre-trigger &
post-trigger data available |
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Programmable Sequence Replay Mode, dynamic change to new signal on event, or loop |
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Optimised clock section, internal or external clock reference |
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Multi-lane PCI-Express interface for over 3 GBytes per second sustained data streaming rate with the PC* |
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Versatile and wide ranging software support for programming the card in Windows® and Linux® |
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DIGITAL CARD SELECTION TABLE - Format PCI-EXPRESS
| This versatile 3/4 length digital capture card range fits into almost
all desktop computers, but also some types of industrial computers too. A choice
card models offer different maximum capture speeds and it is possible to program
a wide range of input capture speeds up the maximum. |
| M4i (PCIe x8-lane) |
MODEL SERIES
Please click on the images for more information |
CHANNEL TYPE | MAXIMUM SAMPLE RATE
(Mb/s = mega bits per second) | CHANNEL NUMBER |
 M4i.77xx |
Digital input logic levels
-3.0V to +5V
Single-ended or LVDS | 720 Mb/s | 8, 16, 32 bits |
| The digital options in the table below add multi-purpose digital
I/O lines to the M2p.59xx digitisers or the M2p.65xx AWG cards, producing a "mixed-mode"
type of operation. Access to these extra lines is via SMB or FX2 connectors. The
FX2 connector was also used on Spectrum's earlier digital I/O (e.g. M2i.70xx series),
so providing an element of backward compatibility. On the M2p.59xx digitisers the
digital I/O can be set synchronous to A/D sampling.
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| M2p (PCIe - x4 lane) |
MODEL SERIES OPTION
Please click on the images for more information |
CHANNEL TYPE | MAXIMUM SAMPLE RATE
(Mb/s = mega bits per second) | CHANNEL NUMBER |
 M2p59.xxxx-Dig |
Digital multi-purpose lines for M2p.59xx digitiser cards
-0.5 to +4V (LVTTL) | 125 Mb/s | 16 bits |
| M2p65.xxxx-Dig |
Digital multi-purpose lines for M2p.65xx AWG cards
-0.5 to +4V (LVTTL) | 125 Mb/s | 16 bits |
| For existing users of the older PCI and PCI-Express M2i.70xx
series cards, who simply wish for a drop-in replacement, we can still supply. For
new applications requiring digital signal capture we now recommend the M4i.77xx series
cards. |
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