Texas Instruments TRF3750 Series User Manual Download Page 35 | Manualshive

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PCB Layout

4-9

Physical Description

Figure 4−8. Bottom Layer 4 (QFN EVM)

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Summary of Contents for TRF3750 Series

Page 1: ...2004 Wireless Infrastructure Products User s Guide SLWU009...

Page 2: ...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 3: ...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 r...

Page 4: ...t 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 25 C The EVM is...

Page 5: ...test environment only It gen erates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rul...

Page 6: ...e 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 c...

Page 7: ...4 2 3 TRF3750 Reference Latch Menu 2 5 2 4 TRF3750 N Counter Latch 2 6 2 5 TRF3750 Function Latch 2 7 2 6 TRF3750 Initialization Latch 2 8 2 7 TRF3750 Set BIts Individually 2 9 2 8 Parallel Port 2 10...

Page 8: ...2 Ground Plane Layer 2 TSSOP EVM 4 3 4 3 Power Plane Layer 3 TSSOP EVM 4 4 4 4 Bottom Layer 4 TSSOP EVM 4 5 4 5 Top Layer 1 QFN EVM 4 6 4 6 Ground Plane Layer 2 QFN EVM 4 7 4 7 Power Plane Layer 3 QF...

Page 9: ...reference and supply conditions This document should be used in combination with the EVM schematic diagram supplied Using the TRF3750 EVM you can rapidly evaluate the TRF3750 PLL with a minimum of man...

Page 10: ...computer parallel port cable and serial interface software The interface allows read and write access to all registers that define the operation modes of the TRF3750 1 2 Power Requirements The EVM ha...

Page 11: ...enus Topic Page 2 1 Software Installation 2 2 2 2 Selecting Menus and Settings 2 4 2 3 TRF3750 Reference Latch Menu 2 5 2 4 TRF3750 N Counter Latch 2 6 2 5 TRF3750 Function Latch 2 7 2 6 TRF3750 Initi...

Page 12: ...the program The installer automatically installs the TRF3750 software the National Instruments LabVIEW run time engine and the LabWindows run time engine in one seamless installation After the comput...

Page 13: ...Software Installation 2 3 Software Installation Figure 2 1 Structure of the Main Menu...

Page 14: ...Hz Reference frequency REFIN 10 MHz and Prescaler selection 16 17 2 Left click on the CALCULATE button and the program calculates the data set for the A counter and B counter You also have the option...

Page 15: ...using the pulldown arrows Press the SEND TO TRF3750 button to send the data to the register Press the RETURN TO MAIN button to close the menu The palette settings displayed are typical and the R value...

Page 16: ...TRF3750 N Counter Latch 2 6 2 4 TRF3750 N Counter Latch Figure 2 2 shows an example of the N counter settings Figure 2 2 Example of N Counter Latch...

Page 17: ...TRF3750 Function Latch 2 7 Software Installation 2 5 TRF3750 Function Latch Use the Pull button to set the charge pump current and other function latch specific features supported...

Page 18: ...TRF3750 Initialization Latch 2 8 2 6 TRF3750 Initialization Latch...

Page 19: ...TRF3750 Set BIts Individually 2 9 Software Installation 2 7 TRF3750 Set BIts Individually...

Page 20: ...utton The program includes the parameter assistant which can help you choose divider ratios and parameters depending on your choice of VCO frequency prescaler value and PFD frequency By simply Left cl...

Page 21: ...Help Menu 2 11 Software Installation 2 9 Help Menu...

Page 22: ...Pressing the EXIT button stops the execution of the program and returns you to the main menu You can also rerun the last configuration automatically by left clicking on the arrow located on the tool...

Page 23: ...3 1 Hardware Configuration This chapter discusses the EVM configuration and also contains the EVM schematic Topic Page 3 1 EVM Configuration 3 2 Chapter 3...

Page 24: ...able 3 1 Reference Oscillator Configuration REFIN Signal Source Circuit Configuration Y1 Remove R3 install R20 and FB1 or FB2 External signal source Install R3 remove R20 and FB1 FB2 Use FB2 and E1 to...

Page 25: ...1 and the return to J1 3 2 7 V to J1 5 and the return to J1 3 3 3 3 V to J1 2 and J1 4 and the return to J1 3 4 If a crystal oscillator usually 10 MHz is installed go to step 5 5 Use a frequency gener...

Page 26: ...3 4...

Page 27: ...Physical Description This chapter describes the physical characteristics and PCB layout of the EVM and lists the components used on the module Topic Page 4 1 PCB Layout 4 2 4 2 Parts List 4 10 Chapte...

Page 28: ...tructed on a 4 layer 3 4 inch x 4 inch 0 062 inch thick PCB using FR 4 material Figure 4 1 through Figure 4 4 show the PCB layout for the TSSOP EVM and Figures 4 5 through 4 8 show the PCB layout for...

Page 29: ...PCB Layout 4 3 Physical Description Figure 4 2 Ground Plane Layer 2 TSSOP EVM...

Page 30: ...PCB Layout 4 4 Figure 4 3 Power Plane Layer 3 TSSOP EVM...

Page 31: ...PCB Layout 4 5 Physical Description Figure 4 4 Bottom Layer 4 TSSOP EVM...

Page 32: ...PCB Layout 4 6 Figure 4 5 Top Layer 1 QFN EVM...

Page 33: ...PCB Layout 4 7 Physical Description Figure 4 6 Ground Plane Layer 2 QFN EVM...

Page 34: ...PCB Layout 4 8 Figure 4 7 Power Plane Layer 3 QFN EVM...

Page 35: ...PCB Layout 4 9 Physical Description Figure 4 8 Bottom Layer 4 QFN EVM...

Page 36: ...istor 1 16 W 1 1 9C06031A2701FKHFT Yageo America R4 200 resistor 1 16 W 1 3 ERJ 3EKF2000V Panasonic R17 R18 R19 20 k resistor 1 16 W 1 1 ERJ 3EKF2002V Panasonic R7 3 9 k resistor 1 10 W 1 1 9C06031A39...

Page 37: ...5 1 Schematics Schematics This chapter contains the schematics for both the TRF3750 TSSOP and QFN EVMs Chapter 5...

Page 38: ...HASSIS CG2 F1 BNX002 01_MOD VS VS PSG PSG CG CG VC VC CHASSIS CG1 CHASSIS CG2 F2 BNX002 01_MOD VS VS PSG PSG CG CG VC VC CHASSIS CG1 CHASSIS CG2 F3 BNX002 01_MOD VVCO DVDD AVDD VP 1 2 3 4 5 6 7 8 9 10...

Page 39: ...90 2150T 1 2 3 4 5 J1 CON_5TERM_SCREW VS VS PSG PSG CG CG VC VC CHASSIS CG1 CHASSIS CG2 F4 BNX002 01_MOD VS VS PSG PSG CG CG VC VC CHASSIS CG1 CHASSIS CG2 F1 BNX002 01_MOD VS VS PSG PSG CG CG VC VC CH...

Page 40: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TRF3750Q1900EVM...

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