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Texas Instruments TRF4903 User Manual Download Page 22

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6

SCHEMATICS

A

A

B

B

C

C

D

D

E

E

4

4

3

3

2

2

1

1

OPTIONAL,DNP

LDO  REGULATOR

EVK

DEMO

DNP

 

A

ALL

INITIAL RELEASE

7−9−04

RPW

REV

DESCRIPTION

DATE

ZONE

APPROVED

REVISIO NS

1.  INTERPERT DRAWING IAW MIL−STD−100.

2.  RESISTANCE VALUES ARE IN OHMS.
3.  CAPACITANCE VALUES ARE IN FARADS.
4.  PARTIAL REFERENCE DESIGNATIONS ARE SHOWN
    FOR COMPLETE DESIGNATION, PREFIX WITH UNIT
    NUMBER, ASSY. DESIGNATION AND SUBASSEMBLY
    DESIGNATION.

NOTES: UNLESS OTHERWISE SPECIFIED.

100014SCH−01

A

TRF4903/MSP4310F437

DEMO

CNOWIRE Technology

1400 Coleman Ave.,Bldg   G−22

, Santa Clara, CA. 95050

B

1

3

Wednesday, March 09, 2005

X

XX/XX/

XX

XX/XX/

XX

XX/XX/

XX

X

X

RICH WILLIAMS

7−6−09

Title

Size

Document Number

Rev

Date:

Sheet

of

DATE

DWN

CHK

APRVD

APRVD

EXCEPT AS MAY BE OTHERWISE PROVIDED BY CONTRACT,  THIS

DRAWING OR SPECIFICATION IS THE PROPRIETARY PROPERTY OF
CNOWIRE TECHNOLOGY INC.  IT IS ISSUED IN STRICT CONFIDENCE
AND SHALL NOT BE REPRODUCED OR COPIED OR USED (PARTIALLY OR
WHOLLY) IN ANY MANNER WITHOUT PRIOR EXPRESS WRITTEN
AUTHORIZATION OF CNOWIRE TECHNOLOGY INC.

IO

IO

L

E

D

4

L

E

D

3

L

E

D

2

L

E

D

1

B

U

T

4

B

U

T

3

B

U

T

2

B

U

T

1

Fsel4

Fsel3

Fsel2

Fsel1

RF

RF

DATA

CLK

STROB

STDBY

MODE

TX−DATA

LOCK−DET

BAT

BAT−S W

XTAK2O UT

XTAL1IN

P5.6

P5.7

P5.5
P5.4

P5.3
P5.2
P5.1
P5.0

P4.7

P4.6
P4.5

P4.4

P4.3
P4.2

P3.3

P3.2

P3.1

P6.4

P6.5

C

O

M

0

R

0

3

S

2

S

3

S

4

S

5

S

6

S

7

S

8

S

9

S1

0

S11

P5.2

P4.6

P4.4

P1.0

P4.2

P3.2

P5.0

COM0

P5.4

P1.2

VREF+

/RST

P6.4

S13

S9

S15

S33

S19

S7

S32

S29

S23

S27

S11

S21

S3

S31

S25

S5

S17

S16

UTXD0

S14

URXD0

S30

S6

S12

S24

S10

S26

S20

S4

S2

S22

S18

S28

S8

RS232OUT

RS232IN

S14

S15

S16

S21

S33

S17

S23

S18

S32

S22

S24

S30

S19

S29

VeREF+

S28

S31

S20

S25

S13

VREF+

S26

S27

S12

TCK

TMS

TDO/TDI
TDI

/RST

XT

AL2IN

VREF−

BAT−SW2

VCC_CPU

VCC_CPU

P3.1

P1.1

P5.5

VREF−

P5.7

P3.3

P1.3

P5.1

P5.3

P4.7

VeREF+

P6.5

R03
P5.6

P4.3
P4.5

XTAL/TCLK

P6LED1

P6LED3

P6LED2

P6LED0

UTXD0

URXD0

P1.4

P1.5

P1.2 P1.1

P1.0

P1.6

P1.3

P1.7

P6LED3

P6LED1

P6LED0

P6LED2

MODE

DATA

STDBY

STROB

TX−D ATA

LOCK−DET

CLK

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC_RF

Y4

32.768KHZ

R47

100

J2

HEADER 7X2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

U6

MSPF449

59

58
57

55
54

53

12
13

46

47
48

49
50

51

62
63

64

65
66
67

68

69
70

71

72 73

74 75

76 77 78

79

52

56

14

15 16 17

18 19

20 21

22 23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

7

10

11

98

99

61

60

1

100

9

8

88

89

90

91

92

93

94

95 96

97 2

3 4 5

6

80 81 82

83

84 85 86

87

P5.7/R33

P5.6/R23
P5.5/R13

P5.4/COM3
P5.3/COM2
P5.2/COM1
P5.1/S0

P5.0/S1

P4.7/S34

P4.6/S35
P4.5/S36

P4.4/S37
P4.3/S38
P4.2/S39
P4.1

P4.0

P3.7
P3.6

P3.5

P3.4
P3.3/UCLK0
P3.2/SOMI0
P3.1/SIMO0

P3.0/STE0

P

2

.7

/A

D

C

1

2

C

L

K

P2.6/CAOUT

P

2

.5

/U

R

X

D

0

P2.4/UTXD0

P2.3/TB2 P2.2/TB1 P2.1/TB0

P2.0/T

A2

C

O

M

0

R

0

3

S

2

S

3

S

4

S

5

S

6

S

7

S

8

S

9

S

1

0

S

1

1

S12

S13

S14

S15

S16

S17

S18

S19

S20

S21

S22

S23

S24

S25

S26

S27

S28

S29

S30

S31

S32

S33

VREF+

VeREF+

VREF−

AVSS

DVSS1

DVSS2

D

V

C

C

2

D

V

C

C

1

A

V

C

C

X

O

U

T

/T

C

L

K

XIN

X

T

2

O

U

T

X

T

2

IN

T

D

O

/T

D

I

T

D

I

TMS

T

C

K

/RST_NMI

P6.0/A0 P6.1/A1

P6.2/A2 P6.3/A3

P6.4/A4 P6.5/A5 P6.6/A6

P6.7/A7/SVSin

P1.7/CA1 P1.6/CA0

P1.5/T

ACLK/ACLK

P1.4/TBCLK/SMCLK

P1.3/TBOUT/SVSOUT P1.2/T

A1

P1.1/T

A0/MCLK

P1.0/T

A0

R30

82K

C30

.1uF

TP1

TP_GRN

GND

3.0V@150mA

U3

TPS76330DBV

1

3

2

5

IN

EN GND

OUT

TP5

TP_GRN

GND

R31
0

J3

HEADER 20X2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

R50

100

Y3

4.9152MHZ

J5

HDR 7X2X2MM

1

2

3

4

5

6

7

8

9

10

13

12

14

11

J4

HEADER 20X2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

R53

10K

R58

100

R29

0

R46

100

D9

MBRM120LT3

TP2

TP_RED

VSS 3.5−6.0 VDC

R45

100

R41

0

TP3

TP_GRN

GND

+

C47

22uF

16V

−20+80%

C36

10pF

TTL

RS

2

3

2

U4

MAX3232−SOIC16

11

12

10

9

16

15

14

13

7

8

2

1

3

4

5

6

T1IN

R1OUT

T2IN

R2OTU

VCC

GND

T1OUT

R1IN

T2OUT

R2IN

V+1

C1+

C1−

C2+

C2−

V−

R42

0

C35

10pF

C43
.1uF

SW6

EG1218

2

1

3

R48

100

C57

.1uF

+

C42

22uF

16V

−20+80%

C46

.1uF

2 X AAA

PCB MT

BAT1

2468

1
2

+

−

C44

.1uF

R56

0

JP2

HEADER 3

1

2 3

C45

.1uF

C37

.1uF

R57

10K

C33

.1uF

J1

CONNECTOR DB9

5

9

4

8

3

7

2

6

1

C31

.1uF

C34

.1uF

+

C32

22uF

16V

−20+80%

SCHEMATICS

The following figures are the schematics for the TRF4903.

Figure 12. Schematic (Page 1)

TRF4903 With MSP430 Demonstration and Development Evaluation Kit

22

SWRU010A – October 2004 – Revised May 2005

Summary of Contents for TRF4903

Page 1: ...tise Other related Texas Instruments information includes the following that may be helpful TRF4903 data sheet SWRS023 TRF6903 data sheet SWRS022 MSP430F449 data sheet SLAS344 TRF6903 Design Guide SWR...

Page 2: ...ency RF data link without the need of an external computer and for prototyping by downloading new software code to the MSP430F449 through the JTAG connector This kit is used to evaluate the Texas Inst...

Page 3: ...demo purposes the TRF6903 board is used as a receiver for the TRF4903 transmitter The microcontroller firmware is configured by default to use the 902 MHz to 928 MHz ISM frequency band Additional firm...

Page 4: ...1 c 2 d e f k j i h g Demonstrating a Wireless Link Figure 1 Top Side Back Side of the TRF4903 Demonstration Board TRF4903 With MSP430 Demonstration and Development Evaluation Kit 4 SWRU010A October...

Page 5: ...er A simple game is implemented in the firmware to demonstrate unidirectional RF communication between the TRF4903 transmit board and the TRF6903 configured in the receive mode The user starts the gam...

Page 6: ...smit data the multiplexed pin 16 is programmed for the DCLK mode and the recovered data clock at 38 4 kbps is output at terminal 16 This blinks the LOCK LED at 38 4 kbps Once the transmission is compl...

Page 7: ...r conditions that persist Error conditions are defined as lost communication mismatch in response sequences or response time outs In some cases antenna orientation signal multipath or another interfer...

Page 8: ...switch to ON Step 2 Start the Workbench START PROGRAMS IAR SYSTEMS IAR EMBEDDED WORKBENCH Step 3 Use FILE OPEN WORKSPACE to open the workspace file at Installation root TRF4903_Demo_US eww Step 4 Use...

Page 9: ...to implement The TRF4903 ISM band transmitter IC operates from 315 MHz to 950 MHz It has low power consumption and an operating voltage of 2 2 V to 3 6 V It features an integer N PLL synthesizer and s...

Page 10: ...MSP430F44x See SWRR009 for the TRF4903 transmit side schematics and SWRR001 for the TRF6903 receiver side schematics All the schematics for the demonstration boards can be found at http www ti com is...

Page 11: ...C104KAT2A CAP CER 0603 16 V 10 0 1 F C23 C30 C31 C33 C34 C37 C40 C43 C44 C45 C46 C51 C52 C53 C55 C56 C57 C58 C59 4 1 F AVX TAJA105K016R CAP TANT 3216 16 V 10 1 F C26 C27 C28 C29 4 22 F CAL CHIP GMC32Y...

Page 12: ...W 4050 Green See sample Cap 1 12 mm Switch OMRON B32 1380 Cap SW 12 mm sq fits B3W 4050 Red See sample Cap 1 2468 MemProtectionD BC2AAAPC Battery holder 2 X AAA PCB Mount BAT1 ev 1 TP Red Kobiconn 41...

Page 13: ...figuration at the silk screen Table 3 lists information for some antenna suppliers If the PCB antenna is not used leave it unconnected remove the matching components from each end and substitute one 1...

Page 14: ...referred method or remove R42 which disables the voltage supply to the MSP430 The TRF4903 can then be controlled directly through J5 the 14 pin surface mount header 4 7 8 Game and RF Operational Modes...

Page 15: ...roller is configured as a state machine to run the link demonstration Figure 8 illustrates the state machine flowchart for the TRF4903 transmit board and the TRF6903 receive board Buttons and timer fu...

Page 16: ...eived Remote Button Packet Local Button Activated Received Response Packet 5 Second Timed Out All 4 Button Pushed 3 sec Timeout All Response Button 3 sec Timeout Local Button Initiated COM Response to...

Page 17: ...ing timer Over time the receive timing could shift in phase relative to transmit timing due to the small variation in component tolerances and performance This shows up as an error in sampled data The...

Page 18: ...Application Register Values Register Parameter Value A PA attenuation 0 dB Mode 0 TX Charge Pump 0 5 mA Frequency Band 915 MHz TX Frequency 902 3488 MHz B PA attenuation 0 dB PA Enabled Mode 1 TX Mod...

Page 19: ...int f_sel trf4903 a bit B_DIV_M0 MAIN_B_T pointer trf4903 a bit A_DIV_M0 MAIN_A_T pointer program_TRF4903_word trf4903 a all trf4903 b bit B_DIV_M1 MAIN_B_R pointer trf4903 b bit A_DIV_M1 MAIN_A_R poi...

Page 20: ...out by the user before clicking the Send All button to configure the RF transceiver Some of the boxes will toggle state when the cursor is placed over the box contents and double clicked power amplif...

Page 21: ...erent set of firmware needs to de downloaded to operate the evaluation kit at the EU band The firmware can be downloaded from the www ti com ismrf website See the Operating the TRF4903 With MSP430 Eva...

Page 22: ...768KHZ R47 100 J2 HEADER 7X2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 U6 MSPF449 59 58 57 55 54 53 12 13 46 47 48 49 50 51 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 52 56 14 15 16 17 18 19 20 21 2...

Page 23: ...PRODUCED OR COPIED OR USED PARTIALL Y OR WHOLLY IN ANY MANNER WITHOUT PRIOR EXPRESS WRITTEN AUTHORIZA TION OF CNOWIRE TECHNOLOGY INC LEDRED LEDORN LEDYEL LEDGRN VCC VCC R13 10k R14 10k R17 10K SW2 PB...

Page 24: ...10k C14 43pF D13 MBRM120LT3 D10 RED R10 15K R61 200 C55 1uF C54 100pF D12 RED R44 10 R35 10 Y2 19 6608MHZ C17 27pF U1 TRF4903PW 9 5 7 4 8 6 11 12 15 13 3 2 1 18 19 20 21 22 24 23 16 10 17 14 VCO_GND...

Page 25: ...ute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual pro...

Page 26: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments MSP TRF4903 DEMO...

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