Texas Instruments ADS1625 EVM Bedienungsanleitung

ADS1625 and ADS1626 EVM

December 2003 Data Acquistion

User’s Guide

SLAU123

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,

enhancements, improvements, and other changes to its products and services at any time and to discontinue

any product or service without notice. Customers should obtain the latest relevant information before placing

orders and should verify that such information is current and complete. All products are sold subject to TI’s terms

and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in

accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI

deems necessary to support this warranty. Except where mandated by government requirements, testing of all

parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for

their products and applications using TI components. To minimize the risks associated with customer products

and applications, customers should provide adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,

in which TI products or services are used. Information published by TI regarding third−party products or services

does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.

Use of such information may require a license from a third party under the patents or other intellectual property

of the third party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of information in TI data books or data sheets is permissible only if reproduction is without

alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction

of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for

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Resale of TI products or services with statements different from or beyond the parameters stated by TI for that

product or service voids all express and any implied warranties for the associated TI product or service and

is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.

Following are URLs where you can obtain information on other Texas Instruments products & application

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Products Applications

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Interface interface.ti.com Digital Control www.ti.com/digitalcontrol

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Wireless www.ti.com/wireless

Mailing Address: Texas Instruments

Post Office Box 655303 Dallas, Texas 75265

EVM IMPORTANT NOTICE

Texas Instruments (TI) provides the enclosed product(s) under the following conditions:

This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION

PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided

may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective

considerations, including product safety measures typically found in the end product incorporating the goods.

As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic

compatibility and therefore may not meet the technical requirements of the directive.

Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide, the kit may be returned

within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE

WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,

IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY

PARTICULAR PURPOSE.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user

indemnifies TI from all claims arising from the handling or use of the goods. Please be aware that the products

received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction

of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic

discharge.

EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE

TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not

exclusive.

TI assumesno liability for applications assistance, customer product design, software performance, or

infringement of patents or services described herein.

Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM

User’s Guide prior to handling the product. This notice contains important safety information about temperatures

and voltages. For further safety concerns, please contact the TI application engineer.

Persons handling the product must have electronics training and observe good laboratory practice standards.

No license is granted under any patent right or other intellectual property right of TI covering or relating to any

machine, process, or combination in which such TI products or services might be or are used.

Mailing Address:

Texas Instruments

Post Office Box 655303

Dallas, Texas 75265

EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of 8 V to 40 V and the output

voltage range of 0 V and 5 V.

Exceeding the specified input range may cause unexpected operation and/or irreversible

damage to the EVM. If there are questions concerning the input range, please contact a TI

field representative prior to connecting the input power.

Applying loads outside of the specified output range may result in unintended operation and/or

possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to

connecting any load to the EVM output. If there is uncertainty as to the load specification,

please contact a TI field representative.

During normal operation, some circuit components may have case temperatures greater than

70°C. The EVM is designed to operate properly with certain components above 0°C as long

as the input and output ranges are maintained. These components include but are not limited

to linear regulators, switching transistors, pass transistors, and current sense resistors. These

types of devices can be identified using the EVM schematic located in the EVM User’s Guide.

When placing measurement probes near these devices during operation, please be aware

that these devices may be very warm to the touch.

Mailing Address:

Texas Instruments

Post Office Box 655303

Dallas, Texas 75265

Information About Cautions and Warnings

iii

Preface

Read This First

About This Manual

This user’s guide describes the characteristics, operation, and use of the

ADS1625/26 EVM 18-bit Analog-to-Digital Evaluation Board. A complete cir-

cuit description as well as schematic diagram and bill of materials are included.

Contact the Product Information Center or e-mail [email protected]

for questions regarding this EVM.

How to Use This Manual

This document contains the following chapters:

-Chapter 1 –EVM Overview

-Chapter 2 –Digital Interface

-Chapter 3 –Power Distribution

-Chapter 4 –Getting the Most From Your EVM

-Chapter 5 −EVM BOM, ADS1625/26EVM Layouts and

Schematics

Information About Cautions and Warnings

This book may contain cautions and warnings.

This is an example of a caution statement.

A caution statement describes a situation that could potentially

damage your software or equipment.

This is an example of a warning statement.

A warning statement describes a situation that could potentially

cause harm to you.

Trademarks

The information in a caution or a warning is provided for your protection.

Please read each caution and warning carefully.

Related Documentation From Texas Instruments

To obtain a copy of any of the following TI documents, call the Texas

Instruments Literature Response Center at (800) 477-8924 or the Product

Information Center (PIC) at (972) 644-5580. When ordering, please identify

this booklet by its title and literature number. Updated documents can also be

obtained through our website at www.ti.com.

Data Sheets: Literature Number:

ADS1625/ADS1626 SBAS280

REF02 SBVS003A

OPA2822 SBOS188A

FCC Warning

This equipment is intended for use in a laboratory test environment only. It gen-

erates, uses, and can radiate radio frequency energy and has not been tested

for compliance with the limits of computing devices pursuant to subpart J of

part 15 of FCC rules, which are designed to provide reasonable protection

against radio frequency interference. Operation of this equipment in other en-

vironments may cause interference with radio communications, in which case

the user at his own expense will be required to take whatever measures may

be required to correct this interference.

Trademarks

TI Logo, TMS320C2000, TMS320C5000, TMS320C6000, and Code

Composer Studio are trademarks of Texas Instruments.

Contents

1 EVM Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Introduction 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Analog Interface 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.4 Analog Input 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5 External Reference 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.6 Modulator Clock 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Digital Interface 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Board-Level Control 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.1 DIP Switch Options 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.2 Jumper Options 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.3 Resetting the ADS1625 and ADS1626 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.4 Out of Range Indication 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.5 Interrupt Source 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.6 Base Address 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.7 Base Address and Chip Select 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 External Interface 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Data Connector Pinout 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3.1 Control Connector Pinout 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Power Distribution 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Getting the Most From Your EVM 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 Stand-Alone EVM 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 DSP Interface 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.1 TMS320C6711 Interface 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 EVM BOM, ADS1625/26 EVM Layouts and Schematics 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 EVM Bill of Materials 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 ADS1625/26 EVM Layout Details 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3 ADS1625/26 EVM Schematics 5-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

Figures

1−1 Default Configuration Used by the EVM 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1−2 Block Diagram 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−1 Arrangement of DSK, Interface Card and EVM 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4−1 Jumper Settings for J13 and J14 on the 5−6K Interface Card 4-3. . . . . . . . . . . . . . . . . . . . . . .

4−2 CCS Project Menu 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4−3 CCS Project Open Dialog 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4−4 CCS Project View 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4−5 CCS Context Menu 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4−6 CCS Graph Property Windows 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4−7 CCS Window With Graph 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5−1 Top Tracking Layer 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5−2 Internal Power and Ground Layers 5-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5−3 Bottom Tracking Layer 5-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tables

1−1 Analog Interface 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1−2 Selection Between Internal/External Reference 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1−3 External Reference 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1−4 Modulator Clock Settings 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−1 Switch Function Control 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−2 FIFO Settings 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−3 Jumper Options 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−4 Memory Space Address 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−5 Assignment and Function at J2/P2 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−6 Assignment and Function at J3/P3 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−1 Power Connector P4/J4 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4−1 Jumper Settings for J13 and J14 on the 5−6K Interface Card 4-3. . . . . . . . . . . . . . . . . . . . . . .

5−1 ADS1625 Bill of Materials 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5−2 ADS1626 Bill of Materials 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

EVM Overview

Topic Page

1.1 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Introduction 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Analog Interface 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.4 Analog Input 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5 External Reference 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.6 Modulator Clock 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 1

Features

1-2

1.1 Features

-Evaluation Board featuring the ADS1625 ADC (order ADS1625 EVM) or

ADS1626 (order ADS1626 EVM)

-Onboard reference, with recommended buffer circuitry

-Onboard signal conditioning.

-Basic system-level logic decoding.

1.2 Introduction

The ADS1625 EVM is a high speed, high-resolution, delta sigma (∆Σ)

analog-to- digital converter. It features a data rate of 1.25 MSPS, a bandwidth

(−3 dB) of 615 kHz and a passband ripple of less than ±0.0025 dB.

The evaluation module (EVM) is a stand-alone, full-featured system that offers

data sheet performance. Additionally, the EVM conforms to a common

electrical and mechanical pinout for analog I/O, digital I/O, and power,

enabling the EVM to be quickly adapted to various host platforms.

1.3 Analog Interface

The analog interface consists of the following subsections:

-Analog input

-External reference

-Modulator clock

Each portion of the analog interface can be adapted to some extent. The

modifications are summarized in Table 1−1 and discussed in detail in the

appropriate subsection of this chapter.

Table 1−1.Analog Interface

Reference Factory Set Condition

Designator Description 1−2 2−3

Analog Input options

W1 Selects AIN_N source Installed Not installed

W2 Selects AIN source Installed Not installed

Reference voltage options

W3 Selects VREFN source Installed Not installed

W4 Selects VCOM source Installed Not installed

W5 Selects VREFP source Installed Not installed

W6 Connects VCM for on board reference Installed

Modulator clock options

W7 Modulator clock source Installed Not installed

Andere Handbücher für ADS1625 EVM

Dieses Handbuch passt für folgende Modelle

Inhaltsverzeichnis

Andere Texas Instruments Hauptplatine Handbücher

Texas Instruments

Texas Instruments LMK61E2EVM Bedienungsanleitung

Texas Instruments

Texas Instruments TPS543320EVM Bedienungsanleitung

Texas Instruments

Texas Instruments FPC401EVM Bedienungsanleitung

Texas Instruments

Texas Instruments DRV2624EVM-CT Bedienungsanleitung

Texas Instruments

Texas Instruments AM263 Series Leitfaden

Texas Instruments

Texas Instruments QFN16-DIP-EVM Bedienungsanleitung

Texas Instruments

Texas Instruments DRV2604L ERM Bedienungsanleitung

Texas Instruments

Texas Instruments TPS1H000-Q1 EVM Bedienungsanleitung

Texas Instruments

Texas Instruments TUSB217AEVM-BC Bedienungsanleitung

Texas Instruments

Texas Instruments DRV604PWPEVM Bedienungsanleitung

Texas Instruments

Texas Instruments DCA1000EVM Bedienungsanleitung

Texas Instruments

Texas Instruments bq242968 Bedienungsanleitung

Texas Instruments

Texas Instruments TPS65987-90 Bedienungsanleitung

Texas Instruments

Texas Instruments bq2589EVM Bedienungsanleitung

Texas Instruments

Texas Instruments TPS61194xEVM Bedienungsanleitung

Texas Instruments

Texas Instruments LMK04832SEPEVM Bedienungsanleitung

Texas Instruments

Texas Instruments TVS 0 Series Bedienungsanleitung

Texas Instruments

Texas Instruments TPS54386EVM Bedienungsanleitung

Texas Instruments

Texas Instruments SN6507DGQEVM Bedienungsanleitung

Texas Instruments

Texas Instruments TPS62442EVM-122 Bedienungsanleitung

Texas Instruments

Texas Instruments DRV8703-Q1-EVM Bedienungsanleitung

Texas Instruments

Texas Instruments CDCM61004 Bedienungsanleitung

Texas Instruments

Texas Instruments bq51013xEVM Bedienungsanleitung

Texas Instruments

Texas Instruments HDC3020EVM Bedienungsanleitung

Beliebte Hauptplatine Handbücher anderer Marken

DFI

DFI SD170 Bedienungsanleitung

ASROCK

ASROCK ROMED8-2T Bedienungsanleitung

Asus

Asus P2L97A Bedienungsanleitung

Winmate

Winmate IC70 Bedienungsanleitung

Asus

Asus MES-B Bedienungsanleitung

Grantech

Grantech SYS8F377VGGA-3OMN Bedienungsanleitung

Telit Wireless Solutions

Telit Wireless Solutions SL869-3DR Bedienungsanleitung

Gigabyte

Gigabyte GA-9IVDT Bedienungsanleitung

Commell

Commell MS-C73 Bedienungsanleitung

IBT Technologies

IBT Technologies MB860 Bedienungsanleitung

Nvidia

Nvidia TEGRA DG-04927-001_V01 Bedienungsanleitung

Biostar

Biostar M7VIT Bravo Bedienungs- und Montageanleitung

Intel

Intel D33217CK Bedienungsanleitung

Asus

Asus F1A55-M LX PLUS R2.0 Bedienungsanleitung

EPC

EPC EPC9147C Bedienungsanleitung

Asus

Asus EX-B760M-V5 D4 Bedienungsanleitung

EPOX

EPOX MU-8KHA0010 Bedienungsanleitung

Ski-Doo

Ski-Doo Bombardier MPEM 219 700 090 Bedienungsanleitung