Available Software Drivers and Software Tools:

• • • C library DLLs
    • Linux drivers
    • Windows XP drivers
    • VxWorks drivers
    • LabView

Applications:

The CPCI-AD16 module provides a 3U high-performance data acquisition subsystem. The Local DSP can be used to simply move data samples to the CPCI bus or can provide processing functions such as limit checking, FFTs, digital filtering, etc. Application software can be downloaded to the DSP via the CPCI interface.

Instrumentation amplifiers provide over-voltage protection, gain, and filtering on a per-channel basis. Internal scan and trigger clocks are derived from either the CPCI bus clock or the local DSP clock. Dual 32-bit timers can be programmed to pace the acquisition process. The CPCI-AD16 can also accept external scan and trigger signals from a front panel connector.

TMS320C31 DSP Features:

• • • 32-bit floating point TMS320C31 DSP at 32 MHz
    • Single-cycle instruction execution
    • 2 Kbytes of internal RAM
    • DMA internal co-processor for concurrent I/O and CPU operation
    • Boot loader program built-in
    • 64 x 32 internal cache for data
    • 2 built-in timers
    • Two integer and floating point multipliers
    • Parallel multiply and arithmetic/logical operations on integer or floating-point numbers in a single cycle
    • Internal or external trigger support for A/D conversion synchronization tied to DSP operations
    • Two 32-bit timers which can also be configured for bit I/O

AD976A Specifications:

• • • Fast 16-bit ADC
    • Successive approximation, switched capacitor architecture
    • 200 Ksamples/sec throughput – AD976A
    • Single 5 V supply operation
    • Input range: ±10 VDC
    • 100 mW max power dissipation
    • Choice of external or internal 2.5 VDC reference
    • High-speed parallel interface
    • On-chip clock

Filter Specifications:

• • • 4th order analog low pass filters

Mechanical Environment:

• • • Size – 3U CPCI module (100mm x 160mm)
    • Power – 1.5 watt
    • Vibration – 0.5G, 20-2000 Hz random
    • Shock – 20G, 11 msec, ½ sine
    • Weight – TBD
    • MTBF – >250,000 hours

PGA204 Instrumentation Amplifier Specifications:

• • • Differential or single-ended input support; single-ended output referenced to Vref
    • ±10 VDC input range
    • Software programmable gain of 1, 10, 100, or 1000
    • Over-voltage protection to ±40 VDC
    • Low offset voltage: 50 µV max
    • Low offset voltage drift: 0.25 µV/°C
    • Low input bias current: 2nA max
    • Low quiescent current: 52 mA typical
    • Offset voltage, voltage drift, and quiescent current are laser-trimmed

PCI Bus Controller Features:

• • • Uses the AMCC S5935 PCI controller
    • PCI 2.1 compliant master/slave
    • 132 Mbytes/sec transfer rate
    • Supports Windows NT service pack 2 & 3
    • PCI bus operation DC to 33 MHz
    • Four definable pass-through data channels
    • Two 32-byte internal FIFOs with DMA
    • Four mailbox registers with byte-level status and data strobe/interrupts
    • Direct PCI and add-on interrupt pins
    • Serial nvRAM interface or byte-wide nonvolatile memory interface

Operating Environment:

• • Operating temperature:
    • Commercial: 0 to +70 ºC
    • Optional: -25 ºC to +80 ºC
  • Non-operating: -40 ºC to +85 ºC
  • Airflow requirement – 5 CFM
  • Humidity – 5 to 90% (non-condensing)
  • Altitude – 0 to 10,000 feet