Texas Instruments TI CC3000 User Manual Download Page 20

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SWRU326-012

www.ti.com

Figure 3-6

shows the supply routing guidelines:

•

For power supply routing, the power trace for VBAT must be at least 40 mil wide.

•

The 1.8-V trace must be at least 18 mil wide.

•

Make VBAT traces as wide as possible to ensure reduced inductance and trace resistance.

•

If possible, shield VBAT traces with ground above, below, and beside the traces.

Figure 3-6. Power Supply Routing of the CC3000 EM Board

Layout Guidelines

SWRU326 – November 2012

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Summary of Contents for TI CC3000

Page 1: ...TI CC3000 Evaluation Module User s Guide Literature Number SWRU326 November 2012...

Page 2: ...w 6 2 2 EM Board Bottom View 9 2 3 Antenna 10 2 4 Hardware Setup 13 2 5 Schematics 14 2 6 Bill of Materials BOM 15 3 Layout Guidelines 16 4 Application Development 21 2 Contents SWRU326 November 2012...

Page 3: ...5 Antenna and RF Trace Routing Layout Guidelines 19 3 6 Power Supply Routing of the CC3000 EM Board 20 4 1 MSP EXP430FR5739 Test Platform and CC3000 EM Board 21 List of Tables 2 1 Key Parts of CC3000...

Page 4: ...r s guide and data sheets go to http www ti com product cc3000 FCC Warning This equipment is intended for use in a laboratory test environment only It generates uses and can radiate radio frequency en...

Page 5: ...are requirements making it ideal for low power and low cost applications The CC3000 EM board is targeted for TI MCUs such as the MSP430 FR5739 and other various host platforms This document details th...

Page 6: ...rts and jumpers mounted on the top of the CC3000 EM board Table 2 1 describes the key parts of the EM board Table 2 2 describes the J2 configuration of the CC3000 EM board Table 2 3 and Table 2 4 desc...

Page 7: ...t This tool uses the RS232 UART pins to run radio frequency RF RX and TX tests on the CC3000 module For more information see the CC3000 wiki Functional mode Normal mode Connect pins 2 and 3 Normal mod...

Page 8: ...from EEPROM inside the CC3000 module This pin is connected to the SDA_CC3000 device using a 0 resistor and is not used by end users 5 VBAT_SW_EN Input Active high enables the signal from the host dev...

Page 9: ...AT_SW_EN Input Active high enable signal from the host device 12 WL_SPI_IRQ Output Host interface SPI interrupt request 14 WL_SPI_CS Input Host interface SPI CS 16 WL_SPI_CLK Input Host interface SPI...

Page 10: ...rd and the RF trace routing from the CC3000 module to the antenna Figure 2 4 shows the matching circuit between the antenna and the EM board The return loss is based on the matching circuit and RF tra...

Page 11: ...Antenna Figure 2 4 Matching Circuit Between the Antenna and the CC3000 EM Board Figure 2 5 Return Loss from the ACX Antenna and Matching Circuit 11 SWRU326 November 2012 CC3000 EM Board Submit Docume...

Page 12: ...n Avg gain 0 3 2 6 XZ plane Peak gain Avg gain 1 3 4 2 YZ plane Peak gain Avg gain 0 9 0 9 Antenna www ti com Figure 2 6 Antenna Radiation Patterns 12 CC3000 EM Board SWRU326 November 2012 Submit Docu...

Page 13: ...w headers J4 and J5 To use the EM mating connectors to connect the hardware the mating EM connector must be lined up and spaced 1 2 inches apart see Figure 2 7 To use the single row headers the requir...

Page 14: ...2 5 Schematics Figure 2 8 shows the schematics of the CC3000 EM board Figure 2 8 Schematics of the CC3000 EM Board 14 CC3000 EM Board SWRU326 November 2012 Submit Documentation Feedback Copyright 201...

Page 15: ...B 3 J1 Mini RF header receptacle 4 J2 CON male 1 x 3 pitch 2 0 mm 5 J3 CON male 1 x 2 pitch 2 0 mm 6 J6 J7 Female header Fool Proof H 4 3 2 x 10 pitch 1 27 mm SMT 7 C1 C3 CAP 0402 10 pF 50 V NPO 5 8 C...

Page 16: ...ng a board design incorporating the TI CC3000 module Figure 3 1 shows the TI CC3000 EM four layer board Table 3 1 and Figure 3 2 describe instances of good layout practices Figure 3 1 Module Layout Gu...

Page 17: ...the inner layers if possible 6 Signal traces can be run on a third layer under the solid ground layer which is below the module mounting layer 1 See Figure 3 2 Figure 3 2 Module Layout Guidelines Fig...

Page 18: ...ith Layer 2 Table 3 2 Trace Design Measurement Values Measurement Length H height between L1 and L2 12 0 mil W RF trace 14 3 mil T thickness 1 2 mil S separation 10 0 mil r dielectric 4 3 18 Layout Gu...

Page 19: ...ission line 5 For best results the RF trace ground layer must be the ground layer immediately below the RF trace The ground layer must be solid 6 There must be no traces or ground under the antenna se...

Page 20: ...ust be at least 18 mil wide Make VBAT traces as wide as possible to ensure reduced inductance and trace resistance If possible shield VBAT traces with ground above below and beside the traces Figure 3...

Page 21: ..._Wi Fi_for_MCU TI_Platforms In addition to the TI MCU platforms the CC3000 EM board can be used on other platforms with the same RF connector interface For a host driver porting guide to assist with p...

Page 22: ...egulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided...

Page 23: ...ould void the user s authority to operate the equipment This device complies with Industry Canada licence exempt RSS standard s Operation is subject to the following two conditions 1 this device may n...