DAC161S997EVM_技术文档

User's Guide

SNLU146–JUNE 2013

DAC161S997EVM User's Guide

1

Introduction

The Texas Instruments DAC161S997EVM evaluation module (EVM) helps designers evaluate the

operation and performance of the DAC161S997 4-20mA Loop Drive with SPI control. The EVM contains a

low cost MSP430G2553 microcontroller which comes pre-loaded with firmware to communicate with the

Labview based PC Software. A JTAG header is provided which can be used to program custom firmware.

A general purpose header with SPI and microcontroller GPIOs is provided to ease development of sensor

transmitters and other applications.

The EVM contains one DAC161S997 and is configured as Loop-Powered 2-Wire Transmitter (See

Table 1).

Table 1. Device and Package Configurations

Converter

U2

IC

Package

LLP-16

DAC161S997

Figure 1.

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EVM Setup

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2

EVM Setup

This section describes the jumpers and connectors on the EVM as well and how to properly connect, set

up, and use the DAC161S997EVM.

2.1 Input/Output Connector Description

1. J1 : Loop Connector. Loop+ and Loop- Pins.

2. J2 : JTAG Connector. Used to debug/flash on-board MSP430G2553

3. J3 : General Purpose I/O. Can be used to connect to a SPI-based Analog front end such as the

LMP90100 from TI’s SensorAFE family.

4. DAC_CUR: Power supply for DAC161S997. Short Pin1 and Pin2 to power-up DAC.

5. ERRLVL_SEL1: Pin2 connected to MSP430 (GPIO P2.4) for software control of Error level signal.

6. ERRLVL_SEL2: Pin2 connected to ERRLV pin of DAC161S997. Pin1 connected to COM and Pin3

Connected to VDD.

7. HART_TX1: HART transmit input connector. Can be connected to an external HART modem output.

8. HART_RX1: HART receive output connector. Can be connected to an external HART modem input.

2.2 EVM Connections

For proper operation of the DAC161S997EVM, first short the DAC_CUR pins and connect jumper

between Pin1 and Pin2 of ERRLVL_SEL2 jumpers (the EVM is shipped in this configuration).

The EVM is powered through the Loop supply. Connect Loop+ pin of J1 to Positive of the supply and

negative of the supply to positive terminal of ammeter and negative terminal of ammeter to Loop- pins.

This configuration will supply power to EVM and can measure the Loop current.

Power

Supply

Loop+

Loop-

+

USB

PC

DAC161S997EVM

-

+

-

Ammeter

Figure 2. EVM Connection Diagram

3

Software Installation

It is recommended to use the latest version of DAC161S997 software; this can be downloaded from:

http://www.ti.com/product/dac161s997. You must install the software before you connect the

DAC161S997EVM to your PC.

To install the DAC161S997EVM software:

•

Direct a browser to http://www.ti.com/products/dac161s997, then scroll down to the Tools & Software

section to download the latest DAC161S997 software.

•

Unzip the downloaded file from a known directory, and run the “setup.exe” in

/TI_DAC161S997_Installer/Volume/

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Software Installation

Figure 3.

•

Click Next, read the license agreement and complete the first portion of the installation.

Next, the FTDI drivers are installed automatically.

Figure 4.

•

Click Extract and the following window will appear:

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Figure 5.

•

Click Next. Once the drivers are installed a Completing the Device Driver Installation Wizard window.

Then, Click Finish to complete the installation.

Figure 6.

•

Before you launch the DAC161S997 Software, Connect connect the DAC161S997EVM to a USB port

of your computer and connect the Loop supply voltage.

Open the computer's "Device Manager" and verify that a new COM port named "USB Serial Port" has

been added in the Ports(COM&LPT) section.

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Software Installation

Figure 7.

•

Make a note of the assigned COM port number; this number is needed to connect the PC to the

DAC161S997EVM.

Run the DAC161S997 Software and select the COM port that was assigned and click on connect.

Figure 8.

•

On start-up, the software retrieves all the DAC161S997 registers and updates the software

accordingly.

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Figure 9.

•

The DAC output current can be set in the Current Output field, and the Error current levels can also be

set in the appropriate fields.

•

Any error conditions are indicated and can be cleared when desired.

Individual registers can be set directly if desired.

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Board Layout

4

Board Layout

Figure 10. Top Assembly Layer

Figure 11. Top Layer Routing

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Board Layout

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Figure 12. Bottom Layer Routing

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Bill of Materials

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6

Bill of Materials

Designator

C1

Quantity

Value

0.1µF

3.3µF

1000pF

4.7µF

0.1µF

10µF

Description

Package

Reference

Part Number

1

2

1

3

1

2

1

2

1

6

1

CAP, CERM, 0.1uF, 50V, +/-5%,

X7R, 1206

1206

7343-31

603

C1206C104J5RACTU

TPSD335K050R0800

06035A102KAT2A

T495A475K010ZTE1K4

C0603C104K8RACTU

C1608X5R1A106K

C1005X5R1A104K

293D105X9050C2TE3

TPSA335K016R3500

C0603C222J8RACTU

C3216C0G1H103J

C0603C682J5RACTU

C1608X5R1A224K

C0603C394K8PACTU

HMK325B7225KN-T

5001

C2

CAP, TANT, 3.3uF, 50V, +/-10%,

0.8 ohm, 7343-31 SMD

C4, C17

C5

CAP, CERM, 1000pF, 50V, +/-

10%, C0G/NP0, 0603

CAP, TANT, 4.7uF, 10V, +/-10%,

1.4 ohm, 3216-18 SMD

3216-18

603

C7, C23, C24

C8

CAP CER 0.1UF 10V 10% X7R

0603

CAP CER 10UF 10V 10% X5R

0603

603

C9, C10

C12, C16

C13

0.1µF

1µF

CAP, CERM, 0.1uF, 10V, +/-

10%, X5R, 0402

402

CAP, TANT, 1uF, 50V, +/-10%,

4.6 ohm, 6032-28 SMD

6032-28

3216-18

603

3.3µF

2.2nF

0.01µF

6800pF

0.22µF

0.39µF

2.2µF

Black

3.9V

CAP, TANT, 3.3uF, 16V, +/-10%,

3.5 ohm, 3216-18 SMD

C14

CAP CER 2200PF 10V 5% X7R

0603

C15

CAP, CERM, 0.01uF, 50V, +/-

5%, C0G/NP0, 1206

1206

603

C18

CAP, CERM, 6800pF, 50V, +/-

5%, X7R, 0603

C19, C21

C20

CAP, CERM, 0.22uF, 10V, +/-

10%, X5R, 0603

603

CAP, CERM, 0.39uF, 10V, +/-

10%, X5R, 0603

603

C22

CAP, CERM, 2.2uF, 100V, +/-

10%, X7R, 1210

1210

COM1, COM2, COM3,

H9, LOOP+1, LOOP-1

Test Point, TH, Miniature, Black

D1

Diode, Zener, 3.9V, 500mW,

SOD-123

MMSZ4686T1G

D2

D3

1

4

0.7V

Diode, Schottky, 60V, 3A, SMA

LED, [Color], [MountType]

DAC161S997

SMA

603

B360A-13-F

LG L29K-G2J1-24-Z

SML-LX0603SRW-TR

DAC161P997SQ

D4

DAC1

DAC_CUR1,

HART_RX1, HART_TX1,

Test1

Header, TH, 100mil, 2x1, Gold

plated, 230 mil above insulator

TSW-102-07-G-S

ERRLVL SEL1, ERRLVL

SEL2

2

1

Header, TH, 100mil, 3x1, Gold

plated, 230 mil above insulator

TSW-103-07-G-S

1759017

J1

250V

CONN HEADER RT ANG 2POS

5.08MM

J2

Header, TH, 100mil, 7x2, Gold

plated, 230 mil above insulator

TSW-107-07-G-D

TSW-110-07-G-S

MI0805K400R-10

PZT3904

J3

Header, TH, 100mil, 10x1, Gold

plated, 230 mil above insulator

L1

Q1

R1

40Ω

1A Ferrite Bead, 2 ohm @

100MHz, SMD

1206

SOT-223

603

TRANSISTOR GP NPN 40V

SOT-223

158k

RES, 158k ohm, 1%, 0.1W, 0603

CRCW0603158KFKEA

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Designator

Bill of Materials

Quantity

Value

Description

Package

Part Number

Reference

R2, R10

R3

2

1

200Ω

100k

47k

RES, 200 ohm, 1%, 0.25W, 1206

RES, 100k ohm, 1%, 0.1W, 0603

1206

603

CRCW1206200RFKEA

CRCW0603100KFKEA

ERJ-3GEYJ473V

R4

RES 47K OHM 1/10W 5% 0603

SMD

603

R5, R8

R6, R7

2

20.0Ω

RES, 20.0 ohm, 1%, 0.125W,

0805

805

603

CRCW080520R0FKEA

ERJ-3GEYJ271V

270E

RES 270 OHM 1/10W 5% 0603

SMD

R9

1

0

RES, 0 ohm, 5%, 0.25W, 1206

1206

CRCW12060000Z0EA

CRCW120649R9FKEA

R11

49.9Ω

RES, 49.9 ohm, 1%, 0.25W,

1206

R12

1

10.0k

RES, 10.0k ohm, 1%, 0.1W,

0603

603

CRCW060310K0FKEA

R13

SH-J1, SH-J2

U1

1

2

1

330k

1x2

RES, 330k ohm, 5%, 0.1W, 0603

Shunt, 100mil, Gold plated, Black

CRCW0603330KJNEA

382811-6

50 mA, 3 V TO 50 V,

MICROPOWER, LOW-

DROPOUT LINEAR

REGULATOR

MSOP8

TPS79801-Q1

U2

U3

U4

U5

U6

Y1

1

IC MCU 16BIT 16KB FLASH

20TSSOP

MSP430G2553IPW20R

TPD2E001DRLR

FT232RL-REEL

ISO7421ED

IC ESD-PROT ARRAY 2CH

SOT-5

IC USB FS SERIAL UART 28-

SSOP

Low-Power Dual Channel Digital

Isolators

CONN COM TYPE B MINI USB

SMD 5P

65100516121

DNP

CRYSTAL 12.000MHZ 12PF

SMD

2-SMD

7A-12.000MAAE-T

C3, C6

C11

0

12pF

A/R

DNP

603

C0603C120K5GACTU

DNP

1206

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EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS

Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions:

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.

Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from

the date of delivery for a full refund. THE FOREGOING LIMITED 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. 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.

Please read the User's Guide and, specifically, the Warnings and Restrictions notice in the User's Guide prior to handling the product. This

notice contains important safety information about temperatures and voltages. For additional information on TI's environmental and/or safety

programs, please visit www.ti.com/esh or contact TI.

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. TI currently deals with a variety of customers for products, and

therefore our arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design,

software performance, or infringement of patents or services described herein.

REGULATORY COMPLIANCE INFORMATION

As noted in the EVM User’s Guide and/or EVM itself, this EVM and/or accompanying hardware may or may not be subject to the Federal

Communications Commission (FCC) and Industry Canada (IC) rules.

For EVMs not subject to the above rules, this evaluation board/kit/module is intended for use for ENGINEERING DEVELOPMENT,

DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer

use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing

devices pursuant to part 15 of FCC or ICES-003 rules, which are designed to provide reasonable protection against radio frequency

interference. Operation of the equipment 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.

General Statement for EVMs including a radio

User Power/Frequency Use Obligations: This radio is intended for development/professional use only in legally allocated frequency and

power limits. Any use of radio frequencies and/or power availability of this EVM and its development application(s) must comply with local

laws governing radio spectrum allocation and power limits for this evaluation module. It is the user’s sole responsibility to only operate this

radio in legally acceptable frequency space and within legally mandated power limitations. Any exceptions to this are strictly prohibited and

unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory

authorities, which is responsibility of user including its acceptable authorization.

For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant

Caution

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause

harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the

equipment.

FCC Interference Statement for Class A EVM devices

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial

environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the

instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to

cause harmful interference in which case the user will be required to correct the interference at his own expense.

FCC Interference Statement for Class B EVM devices

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment

generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause

harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If

this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and

on, the user is encouraged to try to correct the interference by one or more of the following measures:

•

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

For EVMs annotated as IC – INDUSTRY CANADA Compliant

This Class A or B digital apparatus complies with Canadian ICES-003.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the

equipment.

Concerning EVMs including radio transmitters

This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this

device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired

operation of the device.

Concerning EVMs including detachable antennas

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain

approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should

be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.

This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum

permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain

greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada.

Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont pu vider l’autorité de

l'utilisateur pour actionner l'équipement.

Concernant les EVMs avec appareils radio

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est

autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout

brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Concernant les EVMs avec antennes détachables

Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain

maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à

l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente

(p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.

Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel

d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans

cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.

SPACER

【Important Notice for Users of this Product in Japan】

This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan

If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product:

1. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and

Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of

Japan,

2. Use this product only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this

product, or

3. Use of this product only after you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with

respect to this product. Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note

that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan.

Texas Instruments Japan Limited

(address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan

http://www.tij.co.jp

【ご使用にあたっての注】

本開発キットは技術基準適合証明を受けておりません。

本製品のご使用に際しては、電波法遵守のため、以下のいずれかの措置を取っていただく必要がありますのでご注意ください。

1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用いただく。

2. 実験局の免許を取得後ご使用いただく。

3. 技術基準適合証明を取得後ご使用いただく。

なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。

ꢀꢀꢀ上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。

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西新宿三井ビル

http://www.tij.co.jp

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EVALUATION BOARD/KIT/MODULE (EVM)

WARNINGS, RESTRICTIONS AND DISCLAIMERS

For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished

electrical equipment and not intended for consumer use. It is intended solely for use for preliminary feasibility evaluation in

laboratory/development environments by technically qualified electronics experts who are familiar with the dangers and application risks

associated with handling electrical mechanical components, systems and subsystems. It should not be used as all or part of a finished end

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Your Sole Responsibility and Risk. You acknowledge, represent and agree that:

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2. You have full and exclusive responsibility to assure the safety and compliance of your products with all such laws and other applicable

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contractors or designees, using the EVM. Further, you are responsible to assure that any interfaces (electronic and/or mechanical)

between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to

minimize the risk of electrical shock hazard.

3. You will employ reasonable safeguards to ensure that your use of the EVM will not result in any property damage, injury or death, even

if the EVM should fail to perform as described or expected.

4. You will take care of proper disposal and recycling of the EVM’s electronic components and packing materials.

Certain Instructions. It is important to operate this EVM within TI’s recommended specifications and environmental considerations per the

user guidelines. Exceeding the specified EVM ratings (including but not limited to input and output voltage, current, power, and

environmental ranges) may cause property damage, personal injury or death. If there are questions concerning these ratings please contact

a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the

specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or

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load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures

greater than 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include

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型号：	DAC161S997EVM
厂家：	TEXAS INSTRUMENTS
描述：	helps designers evaluate the operation and performance of the DAC161S997 4-20mA Loop Drive with SPI control 可帮助设计人员评估与SPI控制DAC161S997 4-20mA的弧圈球的运行和性能
文件：	总16页 (文件大小：8550K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

DAC161S997EVM [TI]

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