TI DSPS 3rd Party Listings: Development Boards: HEGD1 (3MHz 12 Bit A/D)

Digital Signal Processing Solutions Tools: Development Boards

Product Name:	HEGD1 (3MHz 12 Bit A/D)
Company Name:	Hunt Engineering
Features & Benefits:	Granddaughter module for HETBASEIO HETBASE104 Interfaces to Comport output on HETBASE module 16ch, simul.12bit A/D mux from 3 MHz A/D Input range +-2.5V Internal or external sample clock. (DC-3Mhz) Connecting more channels lowers Sampling rate Multiple modules can use common clocks
Platforms Supported:	VME ISA PCI PC
Host Platforms Supported:	Windows 3.1 Windows 95 Windows NT Solaris
TMS320 Devices Supported:	C4x
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Technical Support/Training Available:	YES To provide the highest levels of support this board can only be supplied as part of a Hunt Engineering system.
Overview:	The HEGD1 uses a single Harris HI5800 12-bit A/D. 16 separate sample and hold amplifiers provide multiple channels of A/D interfaced via the HETBASEIO or HEBASE104 to a 'C4x comport interface. A common internal or external clock provides wide flexibility of sampling modes. Multiple modules can be interconnected ensuring simultaneous sampling. Number of channels is selected, using jumpers, to be 1, 2, 4, 8 or 16. There is a multiplexing overhead and the sampling rate per-channel is reduced as more channels are used: i.e. maximum sample rates of 1ch @ 3Msps, 2ch @1Msps each, 4ch @ 600Ksps each, 8ch @ 333Ksps each or 16ch @ 176Ksps each. For each enabled channel a sample clock edge will cause a 16-bit value to be sent to the comport. The bottom 12 bits will be the sample value and the upper bits contain information about the channel number and A/D status. There are 2 samples packed into each 'C4x word, a comport word. The Comport must be guaranteed to read the data at all times to prevent data loss. The inputs are on a standard IDC connector with alternate ground cores. The inputs to the module are protected by unity gain protection buffers.
Company Information:	Hunt Engineering Chestnut Court, Burton Row Brent Knoll Somerset TA9 4BP UK Tel: +44 1278 760 188 Fax: +44 1278 760 199 e-mail: sales@hunteng.demon.co.uk www: http://www.hunteng.demon.co.uk
	Hunt Engineering is dedicated to supplying single and multiprocessor DSP solutions. Our areas of expertise include imaging, parallel processing and industrial applications.