DSPA64/HLF SPEC SHEET

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DSPA64/HLF 64 Ch 16 Bit A/D with DSP -- click for photo tour

Not recommended for new designs.

DSPA64/HLF Features

   • A/D with DSP
   • Sixty-four 16 bit ch
   • 138 kHZ max agg rate
   • Multiplexer array
   • Requires ISA slot
   • 50 MHz Agere DSP32C
   • Application software
   • With source
   • Price $2500
   • Specs Table
   • Options Table

Product Description

The DSPA64/HLF combines an A/D converter board and a DSP coprocessor board to make a complete system for realtime continuous A/D acquisition and processing. The DSPA64 features a high resolution 16 bit A/D converter and a 64 channel programmable multiplexer array.

Sampling at aggregate rates up to 138 kHz, all DSPA64 inputs are differential and buffered through a low noise precision instrumentation amplifier. In addition, overall gain and amplitude limits can be user set by resistors, with nominal values of +/-2.75 or +/-10.00 volts. The DSPA64 sits outside the PC and uses a 16 conductor ribbon cable to communicate all of its acquired data in serial digital format to the DSPHLF card installed in an ISA slot inside the PC.

Featuring a powerful 50 MHz Agere DSP32C floating point DSP processor, the DSPHLF card processes and buffers up to 1Mb of incoming DSPA64 data without any required PC time. Furthermore, double buffering provided by the DSP32C enables large blocks of data to continuously be saved to the hard disk. Data acquisition continues uninterrupted with no data loss while saving to disk. Because the PC is completing only disk saves, PC time is available for displaying graphics or running a windowed environment.

Incoming data is processed up front by the DSP32C, enabling the user to apply digital filters to the incoming data in real time. For example, data can be over sampled and then smoothed to increase the effective resolution of the overall system. This powerful feature is further enhanced because DSPHLF programs are saved in the on board SRAM memory, and can be changed at any time by the user. This allows for modifying filtering coefficients and other parameters as necessary in real time.

A full-featured acquisition kernel and display program is included with this system so you can be up and running immediately. This program allows users to specify selected channels, control acquisition rates and continuously save acquired data to disk. In addition, for those wishing to develop their own custom code and applications many tools are provided. These include an assembler and monitor debugger for the DSPHLF and low level functions for controlling the DSPA64 supplied as 16 and 32 bit DLLs and as National Instruments LabVIEW drivers. Many example programs, both Windows executables like Scope and LabVIEW VIs, are provided. Full source code is included. Also, the PDF user manual contains circuit diagrams for hardware specifics.

The DSPA64/HLF comes with all the accessories you need to start acquiring data. These include software, manual (PDF), triple output power supply, 7' ribbon cable, test leads, one 8 channel terminal board. A separately priced rack mount enclosure is also available.

For additional information see:  Manual Excerpts,  Software

Specifications Table

Options Table

Some users may want to consider these options, although none are necessary as the DSPA64/HLF will work fine in its standard configuration.