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User's Guide

SLAU333 – March 2011

ADS42xx EVM

This is the user’s guide for the ADS42xx EVM (Revision B). The ADS42xx is a dual channel 12-bit/14-bit,
up to 250MSPS dual analog-to-digital converter family. This EVM is specifically suited for interfacing with
TI’s TSW1200 EVM to capture and display waveforms from the ADC. The EVM schematic, BOM, and
layout files can be found in the design package in the ADS42xx EVM product folder on www.ti.com.

Contents

1

Software Control

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2

1.1

Installation Instructions

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2

1.2

Software Operation

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2

2

Basic Test Procedure

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5

2.1

Test Block Diagram

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5

2.2

Verify Board Set-up

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5

2.3

Test Set-up connections

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6

2.4

TSW1200 Quick start Operation

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6

2.5

ADS42xx Test Procedure

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7

2.6

ADS42xx Performance Results

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8

3

Optional Configurations

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8

3.1

THS4509 Input Op-Amp Configuration

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8

3.2

On-Board CDC72010 Clock

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9

3.3

Parallel CMOS Output

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9

List of Figures

1

ADS58C28_ADS42xx_GUI Front Panel – Top Level

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3

2

ADS58C28_ADS42xx_GUI – Advanced Level

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4

3

Test Set-up Block Diagram

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5

4

TSW1200 GUI

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7

5

FFT Plot: 250 MHz Clock, 170 MHz Input

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8

List of Tables

1

Default ADS58C28/42xx EVM Rev B Jumper Setting for Serial Interface

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5

2

Parallel interface with pin control of ADS58C28/42xx EVM Rev B Jumper setting

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6

3

Jumper Setting for Transformer-Coupled or OPA-Driven Input

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8

4

Jumper Setting for Transformer-Coupled or CDC72010 Input

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9

5

Jumper/Component Setting for DDR LVDS Output and Parallel CMOS Output

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9

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1

SLAU333 – March 2011

ADS42xx EVM

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© 2011, Texas Instruments Incorporated

This datasheet has been downloaded from

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at this

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Summary of Contents for ADS42 EVM Series

Page 1: ...ults 8 3 Optional Configurations 8 3 1 THS4509 Input Op Amp Configuration 8 3 2 On Board CDC72010 Clock 9 3 3 Parallel CMOS Output 9 List of Figures 1 ADS58C28_ADS42xx_GUI Front Panel Top Level 3 2 AD...

Page 2: ...as two register tabs Top Level and Advanced The Top Level tab provides an interface to the most used registers The Advanced tab includes less used registers and provides an option to manually input ad...

Page 3: ...GUI to bring the advanced panel to the front On this panel user can write address and data of any register into the address data boxes as shown in Figure 2 45 is address and 4 is data Press Enter on t...

Page 4: ...y updated o Select Load Regs button o Double click on the desired register file o Click on Send All to ensure all of the values are loaded properly 1 2 4 Miscellaneous Settings Device Selection Select...

Page 5: ...Short 1 2 DC supply JP17 Short 2 3 DC supply LDO JP19 Short 2 3 DC supply LDO JP28 Short 2 3 DC supply LDO JP29 Short 2 3 DC supply LDO JP26 Open DC supply for ext buffer JP27 Open DC supply for ext...

Page 6: ...the TSW1200 set up and operation This document assumes the TSW1200 software is installed and functioning properly The front panel of the TSW1200 is shown in Figure 4 The following configuration needs...

Page 7: ...erator for this input to ensure proper device evaluation Connect input signal through an appropriate BPF at either J6 or J3 Channel A or B i e 170MHz Adjust frequency of generator to match the coheren...

Page 8: ...input are shown in Table 3 Table 3 Jumper Setting for Transformer Coupled or OPA Driven Input Jumpers or 0 Transformer Coupled Input default OPA Driven Input R119 Install Do not install R123 Install D...

Page 9: ...ault configuration see CDCE72010 data sheet SCAS858 for details about device default configuration With a 10MHz primary reference at J19 and a 983 04 MHz VCXO on board the CDC outputs a LVCMOS clock a...

Page 10: ...ct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer...

Page 11: ...orized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parti...

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