Introduction; Board Assembly - National Semiconductor ADC081500DEV Instruction Manual

1.0 Introduction

The ADC081500DEV Board is designed to
allow quick evaluation and design development
of National Semiconductor's ADC081500 8-bit
Analog-to-Digital Converter. This device is
specified for 1.5 GSPS operation.
This development board is designed to function
with National Semiconductor's
Software, for fast evaluation. It requires only 3
connections to get started: a Power Supply, a
USB Interface to PC and a Signal Source. A
1.5GHz Clock generator is provided on board
and the system also allows an external clock to
be used if alternative sample rates are required.
Analog I Channel
Input
Clock Input
Trigger Input
The ADC connects to a Xilinx Virtex4 FPGA
which stores up to 4K of data from each
channel before transferring it through the USB
interface to the PC.

2.0 Board Assembly

The ADC081500 Development Board comes in
a low profile plastic enclosure and requires no
WaveVision assisted cooling due to its low power
consumption. The ADC081500 device is
configured entirely through software and also
allows changes to easily be made to the FPGA
configuration to enable system development.
Figure 1 Component Placement & Front Panel
3
USB
E
x
p
a
n
s
i
o
n
PWR
SWITCH
PWR
INPUT
www.national.com