Sundance SMT381 2007 - Manual (Page 6)

1 Introduction
The SMT381 is a single width expansion daughter module capable of converting two
external digital inputs at 1Gsps with a resolution of 14 bits. A Fujitsu dual channel DAC
(
MB86064 ) performs the digital to analogue conversion.
The SMT381 plugs onto a base board which provides an FPGA to interface to the DAC
and control the SMT381. Base board currently available with the SMT381 are
• SMT338-VP 1 ,
• SMT368A.
1.1 Module Features
The main features of the SMT381 are listed underneath:
• Dual channel DAC
• 1 GSPS conversion frequency
• 14 bit data resolution
• Custom Clock and Trigger inputs via external connectors
• Internal Waveform generator
• Standard Sundance comport and SHB interfaces for easy interconnection to
Sundance products via base module.
1.2 Possible applications
The SMT381 can be used for the following applications (this non-exhaustive list should
be taken as an example):
• Broadband cable modem head-end systems
• 3G Radio transceivers
• High-data-rate point-to-point radios
• Medical imaging systems
• Spectrum analyzers
1
Note that when the SMT381 is coupled with the SMT338-VP, sampling rate of 1Gsps is only achievable when using the
internal memory of the DAC. Limitations in the Virtex2pro architecture limit the frequency to 840Msps with the parallel
interface of the DAC.
User Manual SMT381 Page 6 of 31 Last Edited: 12/06/2007 10:43:00