Arbitrary Waveform Generators (AWGs) generate user defined waveforms. Unlike function generators AWGs can generate any waveform shape at their output.

The USB-AO-ARB1 is an ideal solution for adding portable, easy-to-install high-speed analogue arbitrary output capabilities to any computer with a USB 2.0 port. The USB-AO-ARB1 features one single-ended analogue output on a standard female BNC connector with up to 8MHz of continuous transfers through a 32KByte (16k Sample) on-board FIFO. A programmable frequency source allows configurable output rates from 1K to 8MHz. A jumper-selected analogue output range of 0-2.5V, 0-5V, 0-10V, 2.5V, 5V, or 10V ensures broad application compatibility. The analogue output is enabled/gated by a signal applied to either a pin on the IDC or the second BNC.

In addition to the analogue output, there are 8 digital I/O channels configurable as two 4-bit ports for input or output (see block diagram below). The digital I/O wiring connections are via a standard, 0.1" spacing, 2x8 pin, male, shrouded, keyed connector.

All required power is normally supplied to the board via the USB cable. For higher current sourcing capabilities external power may be used. The USB-AO-ARB1 is designed to be used in rugged industrial environments but is small enough to fit nicely onto any desk or testing station. The board itself is PC/104 sized (3.550 by 3.775 inches) and ships inside a steel powder-coated enclosure with an anti-skid bottom.

The OEM (board only) version is perfect for a variety of embedded applications. Its PCB size and pre-drilled mounting holes match the PC/104 form factor (without the bus connections). This ensures easy installation using standard standoffs inside most enclosures or systems. The board can be added to any PC/104, PCI-104, or PCI/104-Express stack by connecting it to a USB 2.0 port on the embedded motherboard. For embedded OEM type applications, an additional miniature USB input header is provided in parallel with the type B connector.

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