Texas Instruments TRF6901, MSP430 User Manual

      

User’s G uide

April 2002 Mixed-Signal RF Products

SWRU006A

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 S TA TUTOR Y, 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 assumes no 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 specified input and output ranges described in the EVM User’s Guide.

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 60°C. The EVM is designed to operate properly with certain components above 60°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

About This Manual

How to Use This Manual

Preface

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This document presents the contents of the TRF6901 868 MHz to 870 MHz RF tool kit. Both hardware and software are described in detail. The first half of the document addresses the TRF6901 RF EVM in a stand-alone evaluation environment. The second half of the document addresses the TRF6901 serial port module that is used to support the TRF6901 RF EVM evaluation in a system environment configuration.

It is important when reading this document to remember that the TRF6901 serial port module is a support module provided along with the TFR6901 RF EVM contained in the TRF6901 RF tool kit. The TRF6901 serial port module is NOT to be considered a stand-alone tool.

Using this document, the user will understand the features of the TRF6901 RF EVM as well as the features of the TRF6901 serial port module as it relates to the TRF6901 RF EVM. Also, the user will become familiar with the features and functionality of both the TRF6901 EVM and the TRF6901 serial port tools software packages.

With the TRF6901 EVM software package, the user will understand how to evaluate the functionality of the TRF6901 on the TRF6901 RF EVM via a PC parallel port. With the serial port software package, the user will understand how to use the programming tool to evaluate the TRF6901 via the PC serial port connection to the TRF6901 serial port module.

Finally, along with being exposed to the basic structure and protocol of an RF link example, the user will be able to use the system mode tool contained within the TRF6901 serial port tools software to establish a basic RF link using two TRF6901 RF tool kits.

Evaluation Board Disclaimer

Please note that the enclosed evaluation boards are experimental printed circuit boards and are therefore only intended for device evaluation.

We would like to draw your attention to the fact that these boards have been processed through one or more of Texas Instruments’ external subcontractors which have not been production qualified.

Information About Cautions and Warnings

The fee associated with the evaluation modules (EVM) is a partial nonrecurring engineering fee (NRE) to partially defray the engineering costs associated with the EVM development and applications support for the RF integrated semiconductor product. The EVM is a tool for evaluating the RF semiconductors supplied by Texas Instruments. The EVM is supplied to prospective component customers to provide services and software allowing the prospect customers to evaluate the RF semiconductors in products they would build.

The EVM may be operated only for product evaluation purposes and then only in nonresidential areas. TI’s understanding is that the customers’ products using the RF parts listed shall be designed to comply with all applicable FCC and appropriate regulatory agency requirements and will, upon testing, comply with these requirements. Operation of this device is subject to the conditions that it does not cause harmful interference and that it must accept any interference.

How to Use This Manual

This document contains the following chapters:

- Chapter 1—TRF6901 RF Tool Kit Overview

- Chapter 2—TRF6901 RF EVM PCB Hardware

- Chapter 3—TRF6901 EVM Control Software

- Chapter 4—TRF6901 Serial Port Tool Overview

- Chapter 5—TRF6901 Serial Port Module PCB Hardware

- Chapter 6—TRF6901 RF Tool Kit System Mode

- Chapter 7—TRF6901 Serial Port Tools Software

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

The information in a caution or a warning is provided for your protection. Please read each caution and warning carefully.

Contents

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1 TRF6901 RF Tool Kit Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1 Description 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Contents 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 TRF6901 EVM/Parallel Port Configuration 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.4 TRF6901 EVM/Serial Port Module Configuration 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 TRF6901 RF EVM PCB Hardware 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Hardware Overview 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 TRF6901 RF Block Diagram 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 TRF6901 RF EVM Schematics 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Top- and Bottom-Side Silkscreen and Drawing 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5 Parts List 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.6 TRF6901 RF EVM Regulated Supply Configuration 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.7 TRF6901 Parallel Port Module Interface 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.8 TRF6901 RF EVM Jumpers 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.8.1 Jumper Connections 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.8.2 Default Jumper Connections 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.8.3 Jumper Description 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.9 Connectors 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.10 Test Points (TP) 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.11 Adjustments 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.12 LED Indicators 2-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 TRF6901 RF EVM Control Software 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 TRF6901 RF EVM Control Software Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 TRF6901 RF EVM Control Software Installation 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 TRF6901 RF EVM Setup With Control Software 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 How to Use the TRF6901 Control Software 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5 Main Program Screen 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5.1 Synthesizer 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5.2 Mode Options 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5.3 Operating Modes 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5.4 Help Box 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5.5 Words 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5.6 Operation Mode 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5.7 The Menu Bar 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.6 IC Layout Screen 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.6.1 Main IC Layout Form 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.6.2 Options 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Contents

3.6.3 FSK/OOK Test 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7 Testing the Transmitter 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7.1 Step 1: Test Setup 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7.2 Step 2: Software Programming 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7.3 Step 3: Spectrum Analyzer Setup 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7.4 Step 4: FSK Modulation Output Test 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7.5 FSK Test Using an External Source 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8 Testing of the Receiver 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8.1 Test Equipment Setup 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8.2 Software Programming for Receiver Testing 3-21. . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8.3 LEARN and HOLD Modes 3-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8.4 Measured Receive Data 3-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 TRF6901 Serial Port Tool Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 Purpose 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 TRF6901 Serial Port Module Description 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 TRF6901 Serial Port Module PCB Hardware 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 Hardware Overview 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 PC Serial Port Interface 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3 MSP430 Features 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.4 TRF6901 SV1 Interface 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5 Control Signal Interface J12 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.6 JTAG Interface J13 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.7 Miscellaneous MSP430 Port Terminals 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.8 LED Status Indicators 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 TRF6901 RF Tool Kit System Mode 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.1 TRF6901 RF Tool Kit System Mode Overview 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.1.1 Protocol Used by the System Mode RF Link 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.1.2 Specification Followed for the System Mode RF Link Example 6-2. . . . . . . . . . . .

6.2 System Mode Description 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.1 System Mode Tool Kit Configuration 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.2 System Mode Concerns 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.3 System Mode Protocol Basics 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.4 System Mode Communication Flow 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.5 System Mode Transmission Protocol Details 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 TRF6901 Serial Port Tools Software 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.1 TRF6901 Serial Port Tools Software Overview 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2 TRF6901 Serial Port Tools Software Installation 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.3 TRF6901 Serial Port Tools Software Main Form 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.3.1 Tool Bar Options 7-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.4 TRF6901 Programming Tool 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.4.1 Programming Tool Binary Input Form 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.4.2 Programming Tool Block Diagram Use 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.5 TRF6901 System Mode Tool 7-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.5.1 System Mode Software Overview 7-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.5.2 System Mode Form 7-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.5.3 System Mode Configuration 7-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.5.4 System Mode Operation 7-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.6 TRF6901 European Frequency Plan Tool 7-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Contents

7.6.1 European ISM Band Frequency Error Calculations Form 7-14. . . . . . . . . . . . . . . .

7.6.2 European ISM Band Frequency Calculations Form Overview 7-15. . . . . . . . . . . . .

7.6.3 Frequency Error Calculation Operation 7-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.7 Reprogramming of the MSP430F149 7-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

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1−1 TRF6901 EVM/Parallel Port Configuration 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1−2 TRF6901 EVM/Serial Port Module Configuration 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−1 TRF6901 Block Diagram 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−2 TRF6901 RF EVM Schematics 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−3 Top-Side Silkscreen and Drawing of TRF6901 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−4 Bottom-Side Silkscreen of TRF6901 RF EVM 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−5 TRF6901 EVM DC Voltage Setup 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−6 TRF6901 RF EVM Parallel Port Interface 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−7 TRF6901 RF EVM Jumper Locations and Default Configurations of the EVM 2-13. . . . . . . .

3−1 Main Program Screen 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−2 TRF6901 IC Layout Screen 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−3 Equipment Setup for Testing of the TRF6901 EVM Transmitter 3-14. . . . . . . . . . . . . . . . . . . . .

3−4 Main Programming Screen Setup for Testing the Transmitter 3-14. . . . . . . . . . . . . . . . . . . . . .

3−5 IC Layout Screen Setup for Testing the Transmitter 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−6 Carrier Signal on the Spectrum Analyzer 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−7 FSK Output From Transmitter 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−8 Equipment Setup for FSK Test With an External Modulation 3-18. . . . . . . . . . . . . . . . . . . . . . .

3−9 FSK Output From Transmitter With an External Modulation 3-19. . . . . . . . . . . . . . . . . . . . . . . .

3−10 Test Setup for TRF6901 EVM Receiver Testing 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−11 Main Program Screen Setup for Receiver Testing 3-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−12 IC Layout Screen for the Receiver Testing 3-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−13 RXDATA Signal at −50-dBm Input Signal to the Receiver 3-23. . . . . . . . . . . . . . . . . . . . . . . . . .

3−14 RXDATA Signal at −90-dBm Input Signal to the Receiver 3-24. . . . . . . . . . . . . . . . . . . . . . . . . .

4−1 TRF6901 RF Tool Kit 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5−1 TRF6901 Serial Port Module Schematic 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5−2 TRF6901 Serial Port Module Top Level Layout 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5−3 SV1 Terminal Connections 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5−4 TRF6901 Serial Port Module LED Indicators 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6−1 Setup of Two TRF6901 RF Tool Kits in the System Mode 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . .

6−2 Phases of the Communication Flow 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6−3 TX-Data RF Transmission Sequence Control 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7−1 TRF6901 Serial Port Tools Software 7-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7−2 Programming Tool Binary Input Form 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7−3 Programming Tool Block Diagram (Standby Mode 0 − Transmit) 7-6. . . . . . . . . . . . . . . . . . . . .

7−4 Programming Tool Block Diagram (Standby Mode 1 − Receive) 7-7. . . . . . . . . . . . . . . . . . . . .

7−5 Programming Tool Block DIagram (Active Mode Transmit) 7-8. . . . . . . . . . . . . . . . . . . . . . . . . .

7−6 Programming Tool Block DIagram (Active Mode Receive) 7-9. . . . . . . . . . . . . . . . . . . . . . . . . .

7−7 System Mode Tool—Version 2.01 7-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7−8 System Mode Tool—Example Operation 7-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7−9 European ISM Band Frequency Error Calculations Form 7-14. . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 1

    

This chapter provides an overview of the TRF6901 RF tool kit.

Topic Page

1.1 Description 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Contents 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 TRF6901 EVM/Parallel Port Configuration 1-2. . . . . . . . . . . . . . . . . . . . . . .

1.4 TRF6901 EVM/Serial Port Module Configuration 1-2. . . . . . . . . . . . . . . . .

TRF6901 RF Tool Kit Overview

1-1

Description

1.1 Description

1.2 Contents

The TRF6901 RF tool kit is to be used to evaluate the functionality and system performance of Texas Instrument’s TRF6901 ISM-band transceiver. It is intended to be an evaluation tool and is not to be considered a reference design. It is important to remember that board layout is a critical parameter affecting the performance of any RF device. The performance of the TRF6901 on the TRF6901 RF EVM demonstrates one implementation of a TRF6901 transceiver layout.

Contained within the TRF6901 RF tool kit are the following:

- TRF6901 RF EVM board

- TRF6901 serial port module

- Serial port cable

- Parallel port cable

- CD ROM

- Software diskette

1.3 TRF6901 EVM/Parallel Port Configuration

The TRF6901 EVM/parallel port configuration, as shown in Figure 1−1, is to be used when observing the functionality of the TRF6901 on the TRF6901 RF EVM stand alone via a standard PC parallel port. Chapter 2—TRF6901 RF

EVM PCB Hardware covers the TRF6901 RF EVM in detail.

Figure 1−1.TRF6901 EVM/Parallel Port Configuration

1.4 TRF6901 EVM/Serial Port Module Configuration

The TRF6901 EVM/serial port module configuration, as shown in Figure 1−2, is to be used when observing the functionality of the TRF6901 on the TRF6901 RF EVM with the serial port module via a standard PC serial port. With this configuration, the system mode functionality can also be observed. See Chapter 6—TRF6901 RF Tool Kit System Mode for further details on the system mode operation.

To PC Parallel Port

1-2

TRF6901 EVM/Serial Port Module Configuration

Figure 1−2.TRF6901 EVM/Serial Port Module Configuration

To PC Serial Port

TRF6901 RF Tool Kit Overview

1-3

1-4

Chapter 2

    !

This chapter describes the PCB hardware of the TRF6901 RF EVM.

Topic Page

2.1 Hardware Overview 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 TRF6901 RF Block Diagram 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 TRF6901 RF EVM Schematics 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Top- and Bottom-Side Silkscreen and Drawing 2-5. . . . . . . . . . . . . . . . . .

2.5 Parts List 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.6 TRF6901 RF EVM Regulated Supply Configuration 2-11. . . . . . . . . . . . . .

2.7 TRF6901 Parallel Port Module Interface 2-12. . . . . . . . . . . . . . . . . . . . . . . .

2.8 TRF6901 RF EVM Jumpers 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.9 Connectors 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.10 Test Points (TP) 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.11 Adjustments 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.12 LED Indicators 2-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TRF6901 RF EVM PCB Hardware

2-1

Hardware Overview

2.1 Hardware Overview

The TRF6901 ISM-band transceiver IC operates from 860 MHz to 930 MHz. It has low power consumption and an operating voltage of 1.8 V to 3.6 V. It uses an integer-N synthesizer and supports FSK/OOK operation. Other features include an on-chip reference oscillator, phase lock loop, brownout detector, and XTAL software trimming.

The TRF6901 RF evaluation module (EVM) provides a platform for lab prototype evaluation of the Texas Instruments TRF6901 transceiver IC. The EVM is used to evaluate the RF performance of the TRF6901. It contains a PC parallel port interface. The transmitted signal can be viewed on a spectrum analyzer as either a single output frequency or in FSK mode. Although higher data rates are achievable with the TRF6901, the TRF6901 EVM is designed to operate at bit rates up to 32-kbps NRZ, with a deviation of approximately ±50 kHz, at room temperature.

2.2 TRF6901 RF Block Diagram

Figure 2−1 shows the block diagram of the TRF6901 ISM transceiver IC.

Figure 2−1.TRF6901 Block Diagram

LNA_IN1, LNA_IN2

860 MHz to 930 MHz

DET_OUT

DC_DC_IN

DC_DC_OUT

PA_OUT

860 MHz to 930 MHz

typical 9 dBm

1, 2

25 22

LNA

Band-gap

Brownout

Detector

DC-DC

Converter

Ceramic

IF Filter

Mixer

MIX_OUT

44, 43 35

32/33

Ceramic

Discriminator

IF_IN1,2

Limiter

RSSI

/A-

Counter

CER_DIS

/Div. CTRL

/B-

Counter

PFD

CPs

15 CP_OUT13VCO_TUNE

LPF_IN

37 36

LPF Amplifier

Quad.

Dem.

2..254

/Ref

2..255

LPF_OUT

LEARN/HOLD

39 34

Data Slicer

Serial

Interface

2..62

XTAL

SLC_CAP

XTAL_SW

20 19 26

RX_DATA

RSSI_OUT

CLOCK DATA STROBE

STDBY MODE

CLK_OUT

TX_DATA

2-2

Loop Filter

2.3 TRF6901 RF EVM Schematics

Figure 2−2 shows the TRF6901 RF EVM schematics.

Figure 2−2.TRF6901 RF EVM Schematics (1 of 4)

BPF1

SFECV10.7MA2S−A

BW=330kHz

123

82pF

C2 15pF

120pF

82pF

4.7 µH

C5 68pF

TRF6901 RF EVM Schematics

RSSI

C13 150pF

22pF

8.2 nH

2.7pF

LNA_VCC

VCO_VCC1

2.7pF

L2 10nH

PA_VCC

VCO_TANK2

VCO_TANK1

C18 100pF

VCO_VCC

C38

10000pF

1 2 3 4 5 6 7 8

9 10 11 12

C30

100pF

C37

1000pF

R13

6.8k

MIX_VCC

4.7uH

LNA

PA_OUT

VCO

VCO_TUNE

MIX_OUT

R10 18k

PLL

CP_OUT

DET_OUT

CP_VCC

DVDD

C39

0.1uF

IF_IN1 44

TRF6901

TX OUT

RX_IN+

VCO_VCC2 DCDC_OUT

50 OHM

TL1

50 OHM

TL2

C11

1.8 pF

PA_V CC

C56

C17

10000pF

0.1uF

JP1

Figure 2−2. TRF6901 RF EVM Schematics (2 of 4)

VCC1

VCCM

R3 10

C15

0.1uF

R5 10

JP2

C23

C24 10000pF

0.1uF

C19

0.1uF

C25

0.1uF

R11

C34

0.1uF

R14

C41

0.1uF

C16 10000pF

C20 10000pF

C26 10000pF

C42 10000pF

XTAL_VCC

DVDD

VCO_VCC1

VCO_VCC2

PA_V CC

IF_IN2 43

181716

CLOCK

RSSI

STROBE

C40 10000pF

RSSI_OUT 41

DATA

DEM_VCC

LRN/HOLD

Reference generator

DC/DC

Conv.

212019

MODE

JP3

R6 10

R8 10

R12

R15

LEARN/HOLD 39

Data slicer

CLK_OUT

C29

0.22uF

DC_DC_OUT

C31

0.47uF

3 1

LPF_IN

24C123C222

100 DNP

C21

0.1uF

C27

0.1uF

C35

0.1uF

C43

0.1uF

220k

82pF

LPF_OUT

CER_DIS

SLC_CAP

RX_DATA

TX_DATA

32 31 30

XTAL 29 28 27 26

DC_DC_IN

C32

1.0uF DNPDNP

DCDC_OUT VCO_VCC2

C22 10000pF

C28 10000pF

C36 150pF

C44 10000pF

TP2

TP1

GND

LPF_OUT

DIS1

10.7 CDACV10M7GA001

C10

2200pF

RX_DAT A

XTAL_SW

DCDC_VCC

LNA_VCC

MIX_VCC

DEM_VCC

TX_DATA

XTAL1 20MHz

97SMX(C)−20MHZ

TP3

DCDC_OUT

C33

0.47uF DNP

XTAL_VCC

MCU_CLK

STDBY DCDC_VCC

DCDC_OUT

C14 15pF

C12

68pF

47uH

DNP

TRF6901 RF EVM PCB Hardware

2-3

TRF6901 RF EVM Schematics

Figure 2−2. TRF6901 RF EVM Schematics (3 of 4)

VCC2

R16 220

LED1 ENABLE LN1261C−(TR)

R19

Q1 FMMT2222ATA

TP14

EX_STDBY

VCC2

3 1

VCC2

R37 220

LED2 BRNOUT LN1261C−(TR)

Q2 FMMT2222ATA

10k

R30

R29

10k

1.0k

JP5

VCC2

DB25M

VCC2

R21 10k

1OE

1A1

1Y1

1A2

1Y2

1A3

1Y3

1A4

1Y4

SN74LVT244BDW

2OE

2A192Y1

2A2

2Y2

2A3

2Y3

2A4

2Y4

1 14 2 15 3 16 4 17 5 18 6 19 7 20 8 21 9 22 10 23 11 24 12 25 13

C47

0.1uF

TP6

CLOCK

TP7

DATA

TP8

STROBE

TP9

TXDATA

TP10

STDBY

TP11 MODE

TP12

LRNHOLD

TP16

BRNOUT

TP17

RXDATA

R20 100 R22 100 R23 100 R24 100 R25 100 R26 100 R27 100

TP13

EX_MODE

3 1

R28

1.0k

JP4

R38 10k

103309−5

R17

VCCM

C45

0.1uF

R18

VCC2

C46

0.1uF

CR1

R36

R35

R34

R33

R32

R31

10k

R39

R40

10k

LL4148

12345678910111213141516171819

MCU_CLK

TP5 RSSI

RSSI

CLOCK

DATA

STROBE

TX_DATA

STDBY

MODE

LRN/HOLD

EXTERNAL_TX_DATA

DET_OUT

RX_DAT A

MCU_CLK

RSSI

CLOCK

DATA

STROBE

TX_DATA

STDBY

MODE

LRN/HOLD

TP15

EX_TXDATA

DET_OUT

RX_DAT A

Figure 2−2. TRF6901 RF EVM Schematics (4 of 4)

POWER

TP4

6 V min to 8 V max

TP18

GND

ZR1

SMBJ8.5CA

C49 10uF

C50

0.1uF

VR1

REG101NA−A

GND

C52

0.1uF

VR2

REG101NA−3.3

GND

C55

0.1uF

OUT ADJ

OUT

5 4

CCWCW

5 4

C54 10000pF

R41

1.8k

R43

R45 820

C48 10000pF

C53 10uF

C51 10uF

R42

1.8−3.6V(3.0VTYP)

JP6

LED3 VCC1 LN1261C−(TR)

R44 220

VCC1

3.3V

VCC2

2-4

2.4 Top- and Bottom-Side Silkscreen and Drawing

Figure 2−3 shows the top-side silkscreen of the TRF6901 RF EVM and Figure 2−4 shows the bottom-side silkscreen.

Figure 2−3.Top-Side Silkscreen and Drawing of TRF6901

TRF6901 RF EVM Schematics

Figure 2−4.Bottom-Side Silkscreen of TRF6901 RF EVM

TRF6901 RF EVM PCB Hardware

2-5

Parts List

Murata SFECV10.7MA2S−A−TC Murata

SFECV10.7MA

2S−A−TC

Piezoelectric ceramics

SFECV10.7 Surface mounted chip

330 kHz

Murata GRM39X7R104J016AD Murata

4J016AD

filters for AM and FM

applications

Murata GRM39X7R224J010AD Murata

4J010AD

Murata GRM39Y5V474J010AD Murata

4J010AD

Murata GRM39Y5V105J010AD Murata

5J010AD

Murata GRM39C02R2C050AD Murata

C050AD

Murata GRM39C02R7C050AD Murata

C050AD

Murata GRM235Y5V106Z016AD Murata

GRM235Y5V1

Murata GRM39C0150J050AD Murata

06Z016AD

capacitor—tantalum

J050AD

replacement

Murata GRM39C0220J050AD Murata

J050AD

Murata GRM39C0680J050AD Murata

J050AD

Murata GRM39C0820J050AD Murata

J050AD

2.5 Parts List

2-6

RefDes Value Note Pattern Name Description Part Number Manufacturer Distributor P/N Distributor

Count

1 BPF1 BW =

0.1 µF 0603 Ceramic chip capacitor GRM39X7R10

C19, C21,

C23, C25,

C27, C34,

C35, C39,

18 C15, C17,

C41, C43,

C45−C47,

C50, C52,

C55

1 C29 0.22 µF 0603 Ceramic chip capacitor GRM39X7R22

2 C31, C33 0.47 µF DNP 0603 Ceramic chip capacitor GRM39Y5V47

1 C32 1 µF DNP 0603 Ceramic chip capacitor GRM39Y5V10

1 C11 1.8 pF 0603 Ceramic chip capacitor GRM39C02R2

2 C6, C9 2.7 pF 0603 Ceramic chip capacitor GRM39C02R7

10 µF 1210 Monolithic chip

C53

3 C49, C51,

2 C2, C14 15 pF 0603 Ceramic chip capacitor GRM39C0150

1 C7 22 pF 0603 Ceramic chip capacitor GRM39C0220

2 C5, C12 68 pF 0603 Ceramic chip capacitor GRM39C0680

3 C1, C3, C8 82 pF 0603 Ceramic chip capacitor GRM39C0820

DistributorDistributor P/NManufacturerPart NumberDescriptionPattern NameNoteValueRefDes

Murata GRM39C0101J050AD Murata

Murata GRM39C0121J050AD Murata

Murata GRM39C0151J050AD Murata

Murata GRM39X7R102J050AD Murata

Murata GRM39X7R222J050AD Murata

Murata GRM39X7R103J050AD Murata

90F2624 Newark

Components

Murata LQG21C4R7N00T1 Murata

Murata LQW1608A8N2D00 Murata

Parts List

Murata LQW1608A10NJ00T1 Murata

J050AD

2J050AD

3J050AD

10000 pF 0603 Ceramic chip capacitor GRM39X7R10

142−0701−801 Johnson

− horizontal/PC mount

0.062 Thk

00T1

2D00

NJ00T1

S1812−473K API Delevan DN1132TR−ND Digi-Key

LN1261C−(TR) Panasonic P503TR−ND Digi-Key

(Shielded)

LED-gull wing-GW

LED, GW type Surface mount

ENABLE

BRNOUT

Type-Red

VCC1

Count

2 C18, C30 100 pF 0603 Ceramic chip capacitor GRM39C0101

1 C4 120 pF 0603 Ceramic chip capacitor GRM39C0121

2 C13, C36 150 pF 0603 Ceramic chip capacitor GRM39C0151

1 C37 1000 pF 0603 Ceramic chip capacitor GRM39X7R10

1 C10 2200 pF 0603 Ceramic chip capacitor GRM39X7R22

C22, C24,

C26, C28,

13 C16, C20,

C38, C40,

C42, C44,

C48, C54,

C56

1 CR1 MELF3 (MINIMELF) Fast switching diode LL4148 Diode INC LL4148CT−ND Digi-Key

2 J1, J2 SMA_H SMA brass connector

2 JP1, JP3 SMD−3 way-JP Jumper-3 Way-SMD

2 JP2, JP6 Jumper-2 pin Breakaway headers 4−103239−0 AMP 90F7725 Newark

2 JP4, JP5 Jumper-3 pin Breakaway headers 4−103239−0 AMP 90F7725 Newark

2 L1, L3 4.7 µH 0805−Murata Chip inductor LQG21C4R7N

TRF6901 RF EVM PCB Hardware

1 L4 8.2 nH 0603 Chip inductor LQW1608A8N

1 L2 10 nH 0603 Chip inductor LQW1608A10

LED2,

1 L5 47 µH DNP 0805−1812 Chip inductor

3 LED1,

2-7

LED3

Parts List

DistributorDistributor P/NManufacturerPart NumberDescriptionPattern NameNoteValueRefDes

Venkel CR0603−16W−000T Venkel

Venkel CR0603−16W−102JT Venkel

Venkel CR0603−16W−182JT Venkel

Venkel CR0603−16W−682JT Venkel

Venkel CR0603−16W−100JT Venkel

Venkel CR0603−16W−103JT Venkel

Venkel CR0603−16W−183JT Venkel

Venkel CR0603−16W−101JT Venkel

Venkel CR0603−16W−221JT Venkel

Venkel CR0603−16W−224JT Venkel

Venkel CR0603−16W−821JT Venkel

Murata CDACV10M7GA001−R0 Murata

97B3257 Newark

Corp.

97B3259 Newark

Corp.

000T

102JT

0 Ω 0603 Chip resistor CR0603−16W−

182JT

3296W−1−XXX Bourns 3296W−XXX−ND Digi-Key

trimming potentiometer

682JT

100JT

10 Ω 0603 Chip resistor CR0603−16W−

103JT

10 kΩ 0603 Chip resistor CR0603−16W−

183JT

101JT

100 Ω 0603 Chip resistor CR0603−16W−

221JT

224JT

220 Ω 0603 Chip resistor CR0603−16W−

821JT

CDACV10M7G

A001−R0

for FM receiver

TP−105−01−02 Components

TP−105−01−00 Components

point (Red)

point (Black)

2-8

Count

4 R1, R4,

R14, R42

2 R28, R29 1 kΩ 0603 Chip resistor CR0603−16W−

1 R41 1.8 kΩ 0603 Chip resistor CR0603−16W−

1 R43 5 kΩ 3296W Bourns 3/8-inch square

R11, R12,

R15, R17,

1 R13 6.8 kΩ 0603 Chip resistor CR0603−16W−

10 R3, R5−R8,

R18

12 R19, R21,

R30−R36,

R38−R40

1 R10 18 kΩ 0603 Chip resistor CR0603−16W−

R22−R27

1 R9 100 Ω DNP 0603 Chip resistor CR0603−16W−

7 R20,

R44

3 R16, R37,

1 R2 220 kΩ 0603 Chip resistor CR0603−16W−

1 R45 820 Ω 0603 Chip resistor CR0603−16W−

1 DIS1 10.7 MHz CDACV Type Ceramic discriminator

1 TP4 P.C. test point Color coded P.C. test

2 TP2, TP18 GND P.C. test point Color coded P.C. test

DistributorDistributor P/NManufacturerPart NumberDescriptionPattern NameNoteValueRefDes

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

97B3253 Newark

Corp.

Parts List

97B3253 Newark

Corp.

TP−105−01−09 Components

point (White)

TP−105−01−09 Components

point (White)

TP−105−01−09 Components

point (White)

TP−105−01−09 Components

point (White)

TP−105−01−09 Components

point (White)

TP−105−01−09 Components

point (White)

TP−105−01−09 Components

point (White)

TP−105−01−09 Components

103309−5 AMP A26274−ND Digi-Key

point (White)

header assembly

747238−4 AMP A2098−ND Digi-Key

connector-25 pin-right

angle-male

Count

15 TP16 BRNOUT P.C. test point Color coded P.C. test

TP6 CLOCK P.C. test point Color coded P.C. test

TP7 DATA P.C. test point Color coded P.C. test

TP3 DCDC_OUT P.C. test point Color coded P.C. test

TP13 EX_MODE P.C. test point Color coded P.C. test

TP14 EX_STDBY P.C. test point Color coded P.C. test

TP15 EX_TXDATA P.C. test point Color coded P.C. test

TP1 LPF_OUT P.C. test point Color coded P.C. test

TP12 LRNHOLD P.C. test point Color coded P.C. test

TP11 MODE P.C. test point Color coded P.C. test

TP5 RSSI P.C. test point Color coded P.C. test

TP17 RXDATA P.C. test point Color coded P.C. test

TP10 STDBY P.C. test point Color coded P.C. test

TP8 STROBE P.C. test point Color coded P.C. test

TRF6901 RF EVM PCB Hardware

TP9 TXDATA P.C. test point Color coded P.C. test

1 P1 103309−5 Amp−latch low profile

1 P2 DB25M Subminiature D

2-9

Parts List

DistributorDistributor P/NManufacturerPart NumberDescriptionPattern NameNoteValueRefDes

Zetex FMMT2222ACT−ND Digi-Key

FMMT2222AT

Digi-Key

Instruments

296−1707−5−ND Digi-Key

Texas

Instruments

SN74LVT244B

REG101NA−A Burr−Brown REG101NA−A−ND Digi-Key

Burr−Brown REG101NA−3.3−ND Digi-Key

REG101NA−3.

SMBJ8.5CA Vishay/Liteon SMBJ8.5AGICT−ND Digi-Key

97B2647 Newark

Corp.

TP−107−01 Components

transistor − 330 mW

Count

2 Q1, Q2 SOT23 NPN switching

1 U1 TQFP48 Transceiver TRF6901 Texas

drivers with 3-state

outputs

regulator

1 U2 SO20WB Octal buffers and line

1 VR1 SOT23−5 100-mA low-dropout

regulator

1 VR2 SOT23−5 100-mA low-dropout

1 XTAL1 20 MHz 97SMX(C) Quartz crystal 97M200−20(C) SMI 97M200−20(C) SMI

suppressor

1 XTAL1A 20 MHz DNP 93SMX Quartz crystal 93M200−20 SMI 93M200−20 SMI

1 ZR1 SMBJ−BI Transient voltage

point

SMD test point Surface mount test

GND3

2 GND2,

2-10

TRF6901 RF EVM Regulated Supply Configuration

for REG101NA Regulator is Equal to:

2.6 TRF6901 RF EVM Regulated Supply Configuration

The evaluation board should be used with a dc power supply voltage of 6 V to 8 V nominal. Figure 2−5 details the dc voltage supply setup for the TRF6901 RF-only EVM.

There are three powering sources on the TRF6901 and the EVM. The adjustable output VCC1 powers all the blocks of the TRF6901 IC. The fixed output VCC2 powers all the components external to the TRF6901, such as LEDs and the digital I/O portions of the EVM. This separation of sources eliminates noise and other potential interferences. The third source is a dc-dc converter which is internal to the TRF6901 IC. The dc-dc converter can provide an adequate voltage to the charge pumps and VCO core in the event an external power supply, such as a battery, drops down to 1.8 V. Hence, increasing the operational period of the TRF6901.

VCC1 output branches out into VCO_VCC1, VCO_VCC2, XTAL_VCC, DVDD, PA_VCC, DCDC_VCC, LNA_VCC, MIX_VCC, and DEM_VCC when JP2 (see Jumper Description) is connected. These are utilized in powering various blocks of the TRF6901 IC. Prior to using the RF EVM, ensure that VCC1 is set to the nominal voltage of approximately 3 V by adjusting R43, if necessary.

Figure 2−5.TRF6901 EVM DC Voltage Setup

OUT

= 1.267 [1+(R41/R43)]

OUT

V at Terminal 1 of REG101NA Should Be 2 V to 3 V Higher Than V

VR1

REG101NA−A

C52

0.1 uF

1 3

C55

0.1uF

OUT

ADJ

GND

VR2

REG101NA−3.3

OUT

GND

POWER

TP4

6 V to 8 V

TP18

GND

ZR1

SMBJ8.5CA

VIN is 6 V min to 8 V max

C49 10 uF

C50

0.1 uF

5 4

OUT

CCWCW

C54 10000 pF

R41

1.8k

R43

R45 820

C48 10000 pF

C53 10 uF

VCC1 is Nominally 3 V

R42

1.8 V to 3.6 V (3 V TYP)

C51 10 uF

Used to Change V

adj

From 1.8 V to 3.6 V

JP6

Connected JP6 for

Power on LED LED3 VCC1 LN1261C−(TR)

R44 220

OUT

VCC1

3.3 V

VCC2

2-11

TRF6901 Parallel Port Module Interface

2.7 TRF6901 Parallel Port Module Interface

Figure 2−6 details the parallel port interface portion of the TRF6901 RF EVM.

Figure 2−6.TRF6901 RF EVM Parallel Port Interface

VCC2

R16 220

LED1 ENABLE LN1261C−(TR)

R19

Q1 FMMT2222ATA

TP14

EX_STDBY

VCC2

3 1

VCC2

R37 220

LED2 BRNOUT LN1261C−(TR)

Q2 FMMT2222ATA

10k

R30

R29

10k

1.0k

JP5

VCC2

DB25M

VCC2

R21 10k

1OE

1A1

1Y1

1A2

1Y2

1A3

1Y3

1A4

1Y4

SN74LVT244BDW

2OE

2A192Y1

2A2

2Y2

2A3

2Y3

2A4

2Y4

1 14 2 15 3 16 4 17 5 18 6 19 7 20 8 21 9 22 10 23 11 24 12 25 13

C47

0.1uF

TP6

CLOCK

TP7

DATA

TP8

STROBE

TP9

TXDATA

TP10

STDBY

TP11 MODE

TP12

LRNHOLD

TP16

BRNOUT

TP17

RXDATA

R20 100 R22 100 R23 100 R24 100 R25 100 R26 100 R27 100

TP13

EX_MODE

3 1

R28

1.0k

JP4

R38 10k

103309−5

R17

VCCM

C45

0.1uF

R18

VCC2

C46

0.1uF

CR1

R36

R35

R34

R33

R32

R31

10k

R39

R40

10k

LL4148

12345678910111213141516171819

MCU_CLK

TP5 RSSI

RSSI

CLOCK

DATA

STROBE

TX_DATA

STDBY

MODE

LRN/HOLD

EXTERNAL_TX_DATA

DET_OUT

RX_DAT A

MCU_CLK

RSSI

CLOCK

DATA

STROBE

TX_DATA

STDBY

MODE

LRN/HOLD

TP15

EX_TXDATA

DET_OUT

RX_DAT A

2-12

TRF6901 RF EVM Jumpers

2.8 TRF6901 RF EVM Jumpers

2.8.1 Jumper Connections

Figure 2−7 shows the default position of the jumpers on the TRF6901 RF EVM.

Figure 2−7. TRF6901 RF EVM Jumper Locations and Default Configurations of the

EVM (Sheet 1 of 2)

BPF1

SFECV10.7MA2S−A

BW=330kHz

C2 15pF

82pF

C3 82pF

120pF

4.7 uH

C5 68pF

RSSI

TX OUT

RX_IN+

VCO_VCC2

DCDC_OUT

50OHM

C17

0.1uF

TL2

PA_VCC

3 1

TL1

JP1

C11

1.8 pF

C13 150pF

C56 10000pF

22pF

8.2 nH

2.7pF

L2 10nH

2.7pF

LNA_VCC

VCO_VCC1

PA_VCC

VCO_VCC

VCO_TANK2

VCO_TANK1

C18 100pF

10000pF

C38

1 2 3 4 5 6 7 8

9 10 11 12

100pF

1000pF

MIX_VCC

4.7uH

LNA

PA_OUT

C30

C37

R13

6.8k

MIX_OUT

VCO

VCO_TUNE

R10 18k

PLL

CP_OUT

DET_OUT

IF_IN1

DET_OUT

TRF6901

CP_VCC

DVDD

C39

0.1uF

IF_IN2 43

RSSI

CLOCK

RSSI_OUT

Reference Generator

DATA

STROBE

C40 10000pF

DEM_VCC

LRN/HOLD

LEARN/HOLD

DC/DC

Conv.

DC_DC_OUT

MODE

JP3

Data Slicer

CLK_OUT

C29

0.22uF

C31

0.47uF DNP

3 1

LPF_IN

24C123C222

R9 100

DNP

220k

82pF

LPF_OUT

CER_RES

SLC_CAP

RX_DATA

TX_DAT A

32 31 30

XTAL 29 28 27 26

DC_DC_IN

C32

1.0uF DNP

DCDC_OUT VCO_VCC2

C12

LPF_OUT

XTAL_SW

68pF

47uH

DNP

C10

2200pF

TP2

TP1

GND

LPF_OUT

RES1

10.7 CDACV10M7GA001

RX_DAT A

TX_DATA

XTAL1 20MHz

97SMX(C)−20MHZ

XTAL_VCC MCU_CLK

STDBY

DCDC_VCC

TP3

DCDC_OUT

C33

0.47uF DNP

C14 15pF

DCDC_OUT

2-13

TRF6901 RF EVM Jumpers

POWER

Figure 2−7. TRF6901 RF EVM Jumper Locations and Default Configurations of the

EVM (Sheet 2 of 2)

TP4

6.0V_TO_8.0V

TP18

GND

ZR1

SMBJ8.5CA

C49 10uF

C50

0.1uF

REG101NA−A 1 3

C52

0.1uF

REG101NA−3.3 1 3

C55

0.1uF

VR1

R42

1.8 −3.6V (3.0V TYP)

JP6

LED3 VCC1 LN1261C−(TR)

R44 220

VCC1

3.3V

VCC2

GND

VR2

GND

C15

0.1uF

OUT ADJ

OUT

5 4

C16 10000pF

R41

1.8k

CCWCW

R43

R45 820

C54 10000pF

XTAL_VCC

C48 10000pF

C53 10uF

C51 10uF

IN EN

VCC1

VCCM

JP2

C23

0.1uF

C24 10000pF

R11

R14

DVDD

C19

C20

0.1uF

10000pF

VCO_VCC1

C25

C26

0.1uF

10000pF

VCO_VCC2

C34

0.1uF

C41

0.1uF

C42 10000pF

PA_VCC

R12

R15

C21

0.1uF

C27

0.1uF

C35

0.1uF

C43

0.1uF

C22 10000pF

C28 10000pF

C36 150pF

C44 10000pF

DCDC_VCC

LNA_VCC

MIX_VCC

DEM_VCC

2-14

+ 65 hidden pages

Texas Instruments TRF6901, MSP430 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual