SigBook: Portable DSP/Data Acquisition/Telephony

The SigBook is an external, high-performance DSP-based data acquisition system with low-noise, high dynamic range analog I/O subsystem. The SigBook connects to the host PC via high-speed enhanced parallel port (EPP). The small size, low power consumption, and parallel port interface makes the SigBook ideal for laptop and notebook based data acquisition. Primary applications are in the fields of acoustic and audio measurement and analysis, speech processing, vibration measurement and analysis, 3-D sound, signal synthesis, and applications requiring portable of field-based data acquisition and measurement.

The SigBook is a 5.5" x 3.5" x 1.5" external, anodized aluminum enclosure with DSP real-time processor(s), 4-channel analog I/O subsystem with programmable input gain and output attenuation, and several communications I/O options including serial, telephony and network interfaces.

SigBook Feature Summary

• capable of advanced signal processing-based data acquisition and measurement functions

• supported by DirectDSP® software, which provides C/C++, MATLAB, LabView, and Visual Basic programming interface, including project file and source code examples

• Configurable with one to twelve (1 - 12) Texas Instrument C5409, C5416, or C5509 16-bit fixed-point, or C6711 or 6713 32-bit floating point DSP processors

• four (4) channels of 4 - 48 kHz 16-bit sigma-delta analog input and output with following features:

  • based on CS4218 monolithic stereo A/D and D/A delta-sigma converters with simultaneous sampling, "brickwall" anti-alias and reconstruction filtering, and linear phase

  • channel-independent programmable input gain from 0 to 22.5 dB, channel-independent programmable output attenuation from 0 to -46.5 dB

  • inputs can be ac- or dc-coupled; outputs are dc-coupled

• Up to 1920 MIPS (C54xx) or 3200 MIPS (C55xx) total processing power with 4x modules installed

• Boot/FLASH EEPROM option for stand-alone operation

• Dual RS-232 serial ports

• Quad RS-422/423 synchronous serial ports

• USB Interface

• Quad T1/E1 telephony interface (integrated framers+transceivers)

• 10/100 Mbps Ethernet controller with integrated transceiver

• 1149.1 JTAG header (internal access only)

• Supported by DirectDSP® , VDS™ , and Hypersignal® software

SigBook Specifications and Data Sheets

• A/D Converters (Crystal Semiconductor CS4218)(587 KB)

• D/A Converters (Crystal Semiconductor CS4218)(587 KB)

SigBook Software Support

The SigBook is fully supported by Signalogic's Hypersignal®-Macro and Hypersignal-Acoustic software packages. In addition, both the board and Hypersignal packages can also be used with DirectDSP®, which offers C/C++, Visual Basic, and MATLAB® programming interfaces.  Used in conjunction with the SigBook, the RTC/Hypersignal software combination provides sophisticated DSP-based instrumentation, visualization and display of waveforms, block-diagram based automation of development and test sequences, and numerous tools for all levels of DSP product, system, and algorithm development. The complete range of DSP/math functions, interactive waveform display and editing, difference equations, filter design, and real-time code development facilities offered by the software is fully active with the SigBook. Display examples include interactive frequency domain waterfall and contour (joint time-frequency), .WAV display, pole-zero, unwrapped phase, and group delay.

Additionally, the TI C54xx or TI C6xxx DSP Source Code Interface allows real-time code to be designed, simulated and developed for the Texas Instruments C54xx and TI C6xxx devices, and results downloaded, tested and graphically debugged in real-time with the Hypersignal and DirectDSP packages.