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User's Guide
SNAU023A–July 2007–Revised October 2013
ADC14C105EB and ADC12C105EB Evaluation Boards
This User's guide applies to the ADC14C105EB and ADC12C105EB evaluation boards which are used to
evaluate the ADC14C105 and ADC12C105 A/D Converters, respectively. These ADCs belong to a family
of 12 and 14 bit converters that provide data at rates of up to 105MHz. Further reference in this manual to
the ADC14C105 is meant to also include the other listed parts unless otherwise specified.
The evaluation board is designed to be used with the WaveVision5™ Data Capture Board which is
connected to a personal computer through a USB port and running WaveVision5™ software, operating
under Microsoft Windows. The software can perform an FFT on the captured data upon command and, in
addition to a frequency domain plot, shows dynamic performance in the form of SNR, SINAD, THD SFDR
and ENOB. The latest WaveVision 5 data capture board and WaveVision 5 Software is available through
the Texas Instruments website.
Contents
1 Board Assembly ............................................................................................................. 2
2 Quick Start ................................................................................................................... 3
3 Functional Description ...................................................................................................... 3
3.1 Analog Input ........................................................................................................ 3
3.2 ADC Reference Circuitry .......................................................................................... 4
3.3 ADC Clock Circuit .................................................................................................. 4
3.4 Digital Data Output ................................................................................................. 4
3.5 Data Format/Duty Cycle Stabilizer ............................................................................... 4
3.6 Power Supply Connections ....................................................................................... 4
4 Installing the ADC14C105 Evaluation Board ............................................................................ 5
5 Hardware Schematic ....................................................................................................... 6
6 Bill of Materials .............................................................................................................. 8
7 Evaluation Board Layout ................................................................................................. 10
Appendix A ....................................................................................................................... 14
List of Figures
1 Major Component and Jumper Locations ............................................................................... 2
2 Test Set Up .................................................................................................................. 2
3 Analog Input Network for F
IN
> 70MHz................................................................................... 3
4 Analog Input Network for F
IN
< 70MHz................................................................................... 4
5 Layer 1: Component Side ................................................................................................ 10
6 Layer 2: Ground ........................................................................................................... 11
7 Layer 3: Power............................................................................................................. 12
8 Layer 4: Circuit Side ...................................................................................................... 13
List of Tables
1 Bill of Materials.............................................................................................................. 8
1
SNAU023A–July 2007–Revised October 2013 ADC14C105EB and ADC12C105EB Evaluation Boards
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