GE-A2DR7-D

GIGEXD CHASSIS
GE-A2DR9-D
GE-A2DR7-D
GE-DR2D-D

GE-A2DR7-D

Features

	Uses Analog Devices AD6645 A/D Converter
	14 Bit 100Mhz A/D Converter
	Jumper Selectable AC or DC Coupled Front End
	Multiple Clock Source-Direct External Clock Drive Using 1Vp-p Input Signal, User Supplied On Board 14 Pin Package Oscillator, Clock Synthesizer From Ext. 10MHz Ref or On-board 10MHz Ref.
	For Use With GIGEXD Rev2 Series
	Data Sheet: GIGEXD_A2DR7D_datasheet.pdf

Engineering Note: The maximum GIGEXD transfer rate over gigabit ethernet is 100 MBytes/Sec. The A2DR7-D can be operated at rates up to 100Mhz with 16 bit data (14 bit data MSB aligned). Therefore, the effective rate of the A2DR7-D is 200MBytes/Sec. Using the A2DR7-D at maximum rates means that the user has to lower the effective rate of data transmission out the GIGEXD to the gigabit ethernet interface. This can be done in 1 of 3 ways:

1) The Digital Tuner within the GIGEXD can be used to tune, filter, and then decimate the data.

2) The input sample rate can be decimated-clocking the data at higher rates but throwing away samples to provide for a slower rate. Ex. clocking at 100Mhz but setting the GIGEXD front end decimation to 2

3) The input samples must be reduced in size (number of bits). The user can configure the GIGEXD to only acquire the most significant 8 bits of a sample.

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