Texas Instruments TRF6900 User manual


 
August 2000 Mixed-Signal RF Products
User’s Guide
SWRU001
查询SWRU001供应商 捷多邦，专业PCB打样工厂，24小时加急出货

IMPORTANT NOTICE
TexasInstruments andits subsidiaries(TI) reservethe rightto makechanges totheir productsor todiscontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TIdeemsnecessarytosupport thiswarranty. Specifictestingofallparameters ofeachdevice isnotnecessarily
performed, except those mandated by government requirements.
Customers are responsible for their applications using TI components.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TIassumes noliabilityforapplicationsassistance orcustomer productdesign. TIdoes notwarrantorrepresent
thatanylicense,eitherexpressorimplied,isgrantedunderanypatentright,copyright,maskworkright,orother
intellectual property right of TI covering or relating to any combination, machine, or process in which such
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party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 2000, Texas Instruments Incorporated

Information About Cautions and Warnings
iii
Read This First
Preface
Read This First
About This Manual
This document is intended to introduce the TRF6900 evaluation module
(EVM)andfamiliarizethereaderwithsettingupandtestingtheTRF6900EVM
using the evaluation software in a typical laboratory environment.
How to Use This Manual
This document contains the following chapters:
Chapter 1 – Overview
Chapter 2 – Evaluation Board
Chapter 3 – Software User’s Guide
Information About Cautions and Warnings
This user’s guide 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.

iv

Running Title—Attribute Reference
v
Chapter Title—Attribute Reference
Contents
1 Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Purpose 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 EVM Setup 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Block Diagram 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Evaluation Board 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Schematics 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.1 Top Side Silkscreen and Drawing 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.2 Bottom Side Silkscreen and Drawing 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Parts List 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 EVM DC Voltage Setup 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Serial Interface and PC Port Pin Out 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Standard PC Parallel Port 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 Jumper Connections 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6.1 Jumper Connections 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6.2 Jumper Description 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7 Connectors and Test Points 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7.1 Connectors 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7.2 Test Points (TP) 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7.3 Adjustments 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7.4 LED Indicators 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Software User’s Guide 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Introduction 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Main Program Screen 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.1 Synthesizer 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.2 Mode Options 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.3 Output Parameters 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.4 PLL and MM Options 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.5 LPT Port 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.6 Help 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.7 Words 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.8 Operation Mode 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.9 Changing Values on the Main Program Screen 3-5. . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Chip Layout Screen 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 PLL/Modulation Options Screen 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Testing of Transmitter 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6 Testing of the Receiver 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.1 Test Equipment Setup 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Running Title—Attribute Reference
vi
3.6.2 Software Programming for Receiver Testing 3-19. . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.3 Learning and Hold Modes 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.4 Measured Receive Data 3-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures
1–1 TRF6900 Block Diagram 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1 TRF6900 EVM DC Voltage Setup 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 TRF6900 EVM Serial Interface 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 EVM Jumper Locations and Default Configuration of the EVM 2-12. . . . . . . . . . . . . . . . . . . . .
3–1 Main Program Screen 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–2 Chip Layout Screen 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–3 PLL/Modulation Options Screen 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–4 Block Diagram for Testing of the TRF6900 EVM Transmitter Section 3-9. . . . . . . . . . . . . . . . .
3–5 Main Program Screen 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–6 Chip Layout Screen 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–7 Spectrum Analyzer 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–8 Input of Frequency Error 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–9 Main Panel Display After Clock Offset Is Applied 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–10 PLL/Modulation Options View 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–11 PLL/Modulation Options Screen 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–12 FSK Output From Transmitter 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–13 Block Diagram for Testing of the TRF6900 EVM Transmitter Section With an
External Pulse Generator 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–14 FSK Output From Transmitter With an External Modulation 3-17. . . . . . . . . . . . . . . . . . . . . . . .
3–15 Test Setup for TRF6900 Receiver Testing 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–16 Main Program Screen 3-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–17 Chip Layout Screen for Receiver Testing 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–18 Measured Data With –50 dBm Input Signal at AMP_OUT and RXDATA Test Points 3-21. . .
3–19 Measured Data With –90 dBm Input Signal at AMP_OUT and RXDATA Test Points 3-21. . .

1-1
Overview
This chapter gives an overview of the TRF6900 evaluation module (EVM).
Topic Page
1.1 Purpose 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 EVM Setup 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Block Diagram 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1

Purpose
1-2
1.1 Purpose
The TRF6900 evaluation module (EVM) provides a platform for lab prototype
evaluation of the Texas Instruments TRF6900.
1.2 EVM Setup
The 3.5-inch diskette supplied with the TRF6900 contains the software re-
quired to demonstrate the TRF6900. Complete the following steps to set up
the TRF6900 for evaluation.
Step 1: Place the 3.5-inch diskette into the floppy disk drive of the computer
being used to evaluate the TRF6900.
Step 2: Copy the TRF6900.exe file to the hard drive.
Step 3: Connect a DB25 female to DB25 male cable between the TRF6900
evaluation board and the PC parallel port. The DB25 female end of
the cable is connected to the TRF6900. The DB25 male end of the
cable is connected to the desired LPT port of the PC. (LPT1 or
LPT2).
Step 4: Connectadcpowersupplycapableof 10V200mA betweenthered
power supply pin and ground on the TRF6900 evaluation board.
Step 5: Verify that the power supply output is set to 8 V. Turn the power sup-
ply on.
Step 6: IfjumperatJP8is installed, verify that LED3 (the redpoweronLED)
is illuminated.
Step 7: Run the TRF6900.exe file on the PC.
Step 8: Press the Send Words Now (F12) button located on the program
screen.
Step 9: VerifythatLED1(thegreenlockdetectLED)isilluminated.Whenthe
lock detect LED is illuminated, the PLL is locked on frequency.
Note:
The actual icons/windows on the computer screen may differ from those
shown in the user’s guide, due to software version upgrades.
The schematics shown in this user’s guide may not match the current revi-
sion due to PCB and component upgrades.
Always check the TI website for the latest schematics and software.

Block Diagram
1-3
Overview
1.3 Block Diagram
Figure 1–1 shows the block diagram for the TRF6900.
Figure 1–1.TRF6900 Block Diagram
1
2
48
3
4
47 46 45 44 43 42 41 40 39 38 37
36
34
33
32
31
29
30
35
13 14 15 16 17 18 19 20 21 22 23 24
LNA
LNA_GND
LNA_VCC
5
6
7
8
9
10
11
12 25
26
27
28
VCO_TANK1
LNA_OUT MIX_IN MIX_VCC MIX_OUT MIX_GND IF1_IN IF1_OUT IF_GND IF2_IN DEM_GND VREF
DEM_VCC
DEM_TANK
DEM_TANK
RSSI_OUT
LNA_IN
LNA_GND
PA_VCC
PA_OUT
PA_GND
PLL_GND
PD_SET
PD_OUT2
PD_OUT1
LOCKDET
PLL_VCC
VCO_TANK2
DDS_GND
DDS_VCC
STDBY
MODE
TX_DATA
DIG_VCC
DIG_GND
GND
XOSC1 XOSC2
STROBE
CLOCK
DATA
DATA_OUT
S&H_CA
AMP_OUT
AMP_CAP
AMP_IN
RSSI
Serial
Interface
Direct Digital Synthesizer
and
Power–Down Logic
PLL
VCO
FM/FSK
Demodulator
RF Buffer
Amplifier
RF Mixer 1st IF
Amplifier
2nd
IF Amplifier/
Limiter
PowerAmplifier
LO Buffer
Amplifier
TRF6900
Data
Slicer
LPFAmplifier/
Post–Detection
Amplifier
Buffer
Data Switch Amplifier

1-4

2-1
Evaluation Board
Evaluation Board
This chapter describes the EVM and its operation.
Topic Page
2.1 Schematics 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Parts List 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 EVM Voltage Setup 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Serial Interface and PC Port Input 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Standard PC Parallel Port 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 Jumper Connections 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7 Connectors and Test Points 2–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2

Schematics
2-2
2.1 Schematics
TX_OUT
DATA CLOCK STROBE STDBY TXDATA LOCKDET AMP_OUT RXDATA MODE
C4
3
SFECV10.7MJ–A–TC
BW=150 kHz
TBD
9 6
J5
TX_OUT 10pF
C26
DNP
4
TRANSMISSION LINE
LENGTH = 618 mils
FR4, Er = 4.3
43.3pF
C24
DNP
4
J4
RX_IN RX_IN
4.7pF
C17 100pF
C16
J2
LNA_OUT/MIX_IN 1000pF
C5
2
3
1
DNP DNP
0
R51
0.8V
VCC1
3.3pF
C23 1000pF
C18
1000pF
C20 DNP
10nH
L6 DNP
8.2nH
L2
1.0pF
C6 0.1
VCC1
5
1
2
3
DNP
BPF1
C3
2
3 1
DNP
0
R53
DNP
2
3
1
0DNP
R52
DNP
VCC1
L5
1
2
3
BW=150 kHz
SFECV10.7MJ–A–TC
BPF2
1.25V TYPICAL
C11
C13
R5
R9
100pF
C22
0.1 – 10
C25
4.7nH
L7
18nH
L4
TYPICAL
R4
R8
R6
C19
C12
VCC1
VCC1
4
10pF
C9
0
R12
R10
R13
R11
5 4 3 235
34 33 32
3739404142
43444546
47
8
7
10
13
11
12
14 15 16 17 18 19 20 21 22 23 24
25 26 31 27 28 29 30
148 36
38
IC1
TRF6900
PG2.3
C10
R24
DNP
TBD
R26
DNP
TBD
R25 DNP
J7
EX_VCO_INPUT EX_VCO_INPUT
R19 R21
120pF
C31
10nH
L8
3.3pF
C33 3.3pF
C34
TP1
1
2V2
SMV1247–079
1
2
V1
SMV1247–079
470pF
C29
C27
VCC1
4700pF
C28
TBD
R22
DNP
1000pF
C30
VCC1
25.6 MHz
CQ1
C35
1 M
R20
10
R23
10pF
C36
100
R18
ADJUST FOR OUTPUT
FREQUENCYAT J5
FUNDAMENTAL MODE INITIAL TOLERANCE +/– 7 PPM STAB OVER TEMP +/– 20 PPM TEMP RANGE –40 TO +85 DEG C
C38
1.5 – 10pF
DNP
SAT
10pF
C37
SELECT L8 FOR CENTER FREQUENCY.
SELECT C33, C34 FOR TUNINGRANGE.
TYPICAL TUNING RANGE (Vcc=3.3V)
Vt: 0.5 TO 3.0V f: 845–965MHz
J6
100pF
C14
10k
R7 C15
DNP
R9, C21, C22 SET FOR BANDWIDTH.
AS SHOWN, 1dB BW = 20KHz
RSSI_OUT
FOR 110KHz: SFECV10.7MH–A–TC
L1
L3
120pF
C2
120pF
C8 J3
J1
IF_OUT/2IF_INPUT IF_OUT/2IF_INPUT
MIX_OUT/1IF_INPUT MIX_OUT/1IF_INPUT
1000pF
C7
1000pF
C1
330pF
C21
RSSI/RXDATA_OUT RSSI/RXDATA_OUT
VCC2
2 1
R54
0
510
R1
5.6k
R15
LDET
LED1
LN1371SG–(TR)
FMMT2222ATA
Q1
LDET
µF
0.1 µF
0.1 µF
6.2 kΩ
0.1 µF
0.1 µF
100 kΩ
10 kΩ
10 kΩ
0.1 µF
Ω
10Ω
Ω
0.1 µF
0.1 µF
10Ω
2.2 µH
µF
39 kΩ
10Ω
2.2 µH
2.2 µH
0.1 µF
10Ω
10Ω
LNA_OUT/MIX_IN

Schematics
2-3
Evaluation Board
10 kΩ
15
17 4
16
3
2 14
1
13
25 12
24 11
23
10 22 9 21
8 20
7 6
18
5
P1
DB25M
RXDATA
RXDATA
RSSI
10 k
R3
R14
R17
R46
RXD RSSI_O
RSSI_OUT
R35
R49R50
VCC2
C39 100
R27
R29 R28
STROBE
DATA
CLOCK
11OE
20
21A1 41A2 61A3 81A4
19 2OE 11 2A1 9
2Y1
12
1Y4
18
1Y1 16 1Y2 14 1Y3
13 2A2 15 2A3 17 2A4
7
2Y2 5 2Y3 3 2Y4
10
IC2
SN74LVT244BDW
LL4148
CR1
TX DATA FILTER
R31 R32R30
STROBE DATA CLOCK AMP_OUT
AMP_OUT
0
R33
TXDATA1
TXDATA MODE STDBY
TXDATA R41R40R39
CR4
LL4148 1000pF
C40
DNP
STDBY
MODE
LL4148
CR2
LL4148
CR3
R37
VCC2
2
3 1
JP6 JP7
VCC2
R38
VCC2
R2
R36
LED2 ENABLE LN1471SY–(TR)
FMMT2222ATA Q2
19
Ω10 kΩ10 kΩ10 kΩ10 kΩ10 kΩ
0.1µF
Ω
100Ω 100Ω
100Ω
2
31
100Ω
10 Ωk10Ωk10Ωk
10 Ωk10Ωk10Ωk
510Ω
5.6 Ωk
1 2 4
R45
LED3 VCC LN1271R–(TR)
0
JP8
R43 C43 C44 C45
2.2 – 3.6V (3.0V TYP)
VCC2
3.3V
C48C47
C46
R47
VCC1
GND5GND4GND3GND2GND1
GROUND CLIPS
S1JB
CR5
RED
8.0V
ZR1
SMBJ8.5CA
POWER
C41
R34
C42
21
3
R44
3VIN 2
VOUT
1
ADJ
LM317MDT
VR1
VI
3VO
VO
ADJ 5
NC 6 VO 7 VO 8 NC
VR2
LM317LBD
R48
10µF0.1µF
220 Ω
500 Ω
220 Ω
1µF0.1µF 0.01µF
360 Ω
1µF0.1µF 0.01µF
220 Ω
360 Ω

Top Side Silkscreen and Drawing
2-4
2.1.1 Top Side Silkscreen and Drawing

Top Side Silkscreen and Drawing
2-5
Evaluation Board
2.1.2 Bottom Side Silkscreen and Drawing

Parts List
2-6
Evaluation Board
2.2 Parts List
Count RefDes Value Pattern Name Description MFG. Part No. Distributor/Part No. 2BPF1, BPF2 BW = 150 kHz SFECV10.7 Band pass filter Murata SFECV10.7MJ-A-TC 2C45, C48 0.01 µF 0603 1 C28 0.022 µF 0603 1 C25 0.1 µF – 10 µF1206 0603 13 C3, C4, C10–C13,
C19, C27, C35, C39, C42, C44, C47
0.1 µF 0603
1 C32 0.5 pF 0603 2C5, C20 1 nF 0603 1 C29 1.0 nF 0603 4C1, C7, C18, C30 1 nF 0603 1 C6 1.0 pF 0603 2C43, C46 1 µF1208 tantalum Tantalum capacitor 1 C38 1.5 pF – 10 pF 9341 Series Trimmer Capacitor Johnson 9341-3Sl Newark – 95F9901 2C9, C26 10 pF 0603 1 C41 10 µF1206 tantalum Tantalum capacitor 1 C24 12 pF 0603 2C36, C37 47 pF 0603 2C33, C34 3.3 pF 0603 2C17, C23 4.7 pF 0603 3C14, C18, C22 100 pF 0603 3C2, C8, C31 120 pF 0603 1 C21 330 pF 0603 1 C40 1000 pF 0603 1 C15 DNP AT0300 0603 Surface-mount ceramic
trimmer capacitor Temex AT0300
1 CQ1 25.6 MHz HC45/U gull wing Resistance weld miniature
crystal Internation Crystal Mfg. 88542
1 CQ1_A CX-1-SM Surface-mount quartz
crystal CFP (CMAC Frequency
Products) 18 MHZ CX-1 SMI

Parts List
2-7
Evaluation Board
Count Distributor/Part No.Part No.MFG.DescriptionPattern NameValueRefDes 1 CQ1_B ATS-SM series Crystal CTS Reeves ATS256SM-T Digi-Key –
CTX51?TR-ND
4CR1, CR2, CR3, CR4 MELF3 (MINIMELF) Fast switching diode Diode Inc LL4148 Digi-Key –
LL4148BCT-ND
1 CR5 SMB Rectifier Diode Inc S1JBT Digi-Key –
S1HBDUCT-ND
1 IC1 TQFP48 Single chip transceiver Texas Instruments TRF6900 1 IC2 SO20WB Octal Buffers and line
drivers with 3-state outputs Texas Instruments SN74LVT244BDW Digi-Key –
296-1707-5-ND
7J1, J2, J3, J4, J5, J6,
J7 SMA_H SMA brass connector –
horizontal/PC mount Johnson Components 142-0701-801 Newark – 90F2624
5JP1, JP2, JP3, JP4,
JP5 0 0603 0603 SMD resistor
2JP6, JP7, Jumper-3 pin Breakaway headers AMP 4-103239-0 Newark – 90F7725 1 JP8 Jumper-2 pin Breakaway headers AMP 4-103239-0 Newark – 90F7725 3L1, L3, L5 2.2 µH 1214 Surface-mount inductor Murata LQS33N2R2G04M00 2L2, L8 8.2 nH 0603 Surface-mount inductor Murata LQW1608 2L6, L7 10 nH 0603 Surface-mount inductor Murata LQW1608 1 L4 18 nH 0603 Surface-mount inductor Murata LQW1608 1 LED1 LDET LED, S type Surface-mount LED-gull
wing-S type – green Panasonic LN1371SG–(TR) Digi-Key –
P516CT–ND
1 LED2 ENABLE LED, S type Surface-mount LED-gull
wing-S type – amber Panasonic LN1471SY–(TR) Digi-Key –
P517CT–ND
1 LED3 VCC LED, S type Surface-mount LED-gull
wing-S type – red Panasonic LN1271SR–(TR) Digi-Key –
P490CT–ND
1 P1 DB25M Subminiature D connector AMP 745783–4 Newark –
90F5485
2Q1, Q2 SOT23 NPN silicon planar
switching transistor – 330 mW
Zetex FMMT2222A
7R1, R2, R3, R12, R33,
R42, R46 0 0603
1 R20 1M 0603 1 R16 2M 0603 1 R11 3.9K 0603

Parts List
2-8
Evaluation Board
Count Distributor/Part No.Part No.MFG.DescriptionPattern NameValueRefDes 6R4–R6, R8, R13, R23 10 0603 13 R7, R15, R17, R19,
R21, R30–R32, R35, R36, R39–R41
10K 0603
1 R9 39K 0603 6R18, R27, R28, R29,
R37, R38 100 0603
1 R10 100K 0603 2R45, R47 220 0603 3R14, R34, R43 270 0603 1 R48 360 0603 1 R44 500 P1S Panasonic Surface mount trimmer
potentiometer Panasonic EVM-1SSX50BXX
4R22, R24–R26 TBD 0603
0603 0603 0603
2V1, V2 SOD323 Hyperabrupt tuning
varactor Alpha Industries, Inc. SMV1129-011
1 VR1 DPAK CADE369A-13 Three-terminal adjustable
output positive voltage regulator
ON Semiconductor LM317MDT Newark – 06F9320
1 VR2 SO6NB Three-terminal adjustable
output positive voltage regulator
ON Semiconductor LM317LBD Newark – 06F9304
1 ZR1 SMBK-BI Transient voltage
suppressor Vishay/Liteon SMBJ8.5CA Digi-Key –
SMBJ8.5AGICT-ND
11 AMP_OUT, CLOCK,
DATA, F_TXDATA, LDET, MODE, RSSI, RXDATA, STDY, STROBE, TXDATA
PC test point Color coded PC test point
(any color) Components Corp. TP-105-01-?? Newark – 98B32??
1 GND BLK PC test point Color coded PC test point
(black) Components Corp. TP-105-01-00 Newark – 97B3259
18.0 V RED PC test point Color coded PC test point
(red) Components Corp. TP-105-01-02 Newark – 97B3257
5 TP2–TP6 SMD test point Surface mlunt test point Components Corp. TP-107-01 Newark – 97B2647

EVM DC Voltage Setup
2-9
Evaluation Board
2.3 EVM DC Voltage Setup
The evaluation board should be used with a dc power supply voltage of 8 V
nominal.Figure2–1detailsthedcvoltagesupplysetupfortheTRF6900EVM.
Figure 2–1.TRF6900 EVM DC Voltage Setup
Vin is equal to 8.0 volts
in ,
Voutfor LM317 voltage regulator is equal to:
Vout
= 1.25(1+(R44/R43))
V at terminal 3 of LM317 should be 2 to 3 volts
higher than Vout
Connect JP8
For Power
ON LED
V= 7.2 volts
equal to 8 volts
min. to 10 volts max.
With V
1
2
4
R45
LED3
VCC
LN1271R–(TR)
0
JP8
R43 C43 C44 C45
2.2 – 3.6V (3.0V TYP)
VCC2
3.3V
C48C47
C46
R47
VCC1
GND5GND4GND3GND2GND1
GROUND CLIPS
S1JB
CR5
RED
8.0V
ZR1
SMBJ8.5CA
POWER
C41
R34
C42
21
3
R44
3VIN 2
VOUT
1
ADJ
LM317MDT
VR1
VI
3VO
VO
ADJ 5
NC 6
VO 7
VO 8
NC
VR2
LM317LBD
R48
10µF0.1µF
220Ω
500Ω
220Ω
1µF0.1µF 0.01µF
360Ω
1µF0.1µF 0.01µF
220Ω
360Ω
Vadj Used to Change
Vout From 2.2 V to 3.6 V

Serial Interface and PC Port Pin Out
2-10
Evaluation Board
2.4 Serial Interface and PC Port Pin Out
Figure 2–2 details the serial interface portion of the TRF6900 EVM.
Figure 2–2.TRF6900 EVM Serial Interface
P1–2: Clock Input from PC
P1–3: Data Input from PC
P1–5 TX_Data from PC
P1–6 Enable from PC
P1–7, Mode from PC
P1–11 RSSI_Out to PC
P1–12 RX_Data to PC
P1–4 Strobe Input from PC 15
17 4
16
3
2 14
1
13
25 12
24 11
23
10 22 9 21
8 20
7 6
18
5
P1
DB25M
RXDATA
RXDATA
RSSI
RXD
RSSI_O
RSSI_OUT
R35
VCC2
C39 100
R27 R29 R28
STROBE
DATA
CLOCK
11OE
20
21A1 41A2 61A3 81A4
19 2OE 11 2A1 9
2Y1
12
1Y4
18
1Y1 16 1Y2 14 1Y3
13 2A2 15 2A3 17 2A4
7
2Y2 5 2Y3 3 2Y4
10
IC2
SN74LVT244BDW
LL4148
CR1
TX DATA FILTER
R31 R32R30
STROBE DATA CLOCK AMP_OUT
AMP_OUT
0
R33
TXDATA1
TXDATA MODE STDBY
TXDATA R41R40R39
CR4
LL4148 1000pF
C40
DNP
STDBY
MODE
LL4148
CR2
LL4148
CR3
R37
VCC2
2
3 1
JP6 JP7
VCC2
R38
VCC2
R2
R36
LED2 ENABLE LN1471SY–(TR)
FMMT2222ATA Q2
19
10 kΩ
0.1µF
Ω
100Ω 100Ω
100Ω
2
31
100Ω
10 Ωk10Ωk10Ωk
10 Ωk10Ωk10Ωk
510Ω
5.6 Ωk