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User's Guide
SLAU449A–August 2012–Revised September 2013
ADS61JBxx EVM User’s Guide
This document is intended to serve as a user’s guide for the ADS61JBxx EVM (EVM). The ADS61JB23
EVM provides a platform for evaluating the ADS61JB23, which is a single channel, 12-bit ADC operating
at sampling rates of up to 80 Msps, with the digital data output on a JESD204 8b10b-coded serial link at
data rates of up to 1.6 Gbps. The ADS61JB46 EVM supports the 14-bit, 160 Msps ADS61JB46.
This EVM is ideally suited for mating with the TSW1200 or TSW1400 Capture Cards for performing a data
capture into a capture buffer, uploading the sample data to a PC, performing an FFT, and reporting on
SNR, SFDR, and other performance metrics. Since the TSW1200 does not have native support for
JESD204 serial links, the ADS61JBxx EVM has an FPGA to deserialize the sample data and reformat it to
an LVDS DDR parallel data format that the Capture Card can accept.
Contents
1 Overview ..................................................................................................................... 2
2 Software Control ............................................................................................................ 9
3 Basic Test Procedure ..................................................................................................... 11
List of Figures
1 Simplified EVM Block Diagram............................................................................................ 2
2 Simplified EVM Power Supply............................................................................................. 3
3 EVM Jumpers and Switches............................................................................................... 4
4 EVM Solder Options........................................................................................................ 6
5 CML Termination Options.................................................................................................. 8
6 Control Options.............................................................................................................. 9
7 Test Setup Block Diagram ............................................................................................... 11
8 TSW1200 FFT Result..................................................................................................... 13
List of Tables
1 Square Post Jumpers ...................................................................................................... 7
2 Surface Mount Jumpers.................................................................................................... 8
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SLAU449A–August 2012–Revised September 2013 ADS61JBxx EVM User’s Guide
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