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Related Manuals for Texas Instruments TSW3000
Summary of Contents for Texas Instruments TSW3000
- Page 1 TSW3000 Demo Kit User's Guide September 2005 SLWU013A...
- Page 2 TSW3000 Demo Kit User's Guide Literature Number: SLWU013A March 2004 – Revised September 2005...
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Page 3: Table Of Contents
DAC Component ....................VComm Configuration ......................... VCXO ............................................Block Diagrams ..................... System Block Diagram ................... Demo Kit Block Diagram ................Key Texas Instruments Components ......................CDCM7005 ......................DAC5687 ......................TRF370x ......................TRF3750 ....................Software Installation ..................... Software Operation ..................... - Page 4 ....................Filter Specifications ....................10.1 Baseband Filter ....................Layers and Schematics ....................... 11.1 Layers ......................11.2 Schematics Contents SLWU013A – March 2004 – Revised September 2005...
- Page 5 List of Figures ...................... System Block Diagram ....................Demo Kit Block Diagram ....................TSW3000 Startup Screen ....................Default CDCM7005 SPI GUI ....................TRF3750 GUI - Main Menu ..................TRF3750 GUI - Advanced Menu ......................DAC5687 GUI ....................Test System Block Diagram ................
- Page 6 List of Tables ......................Frequency Bands ....................CDCM7005 Register Values ........................Jumper List ....................Input/Output Connections ....................Demo Kit Specifications ....................Frequency Designations List of Tables SLWU013A – March 2004 – Revised September 2005...
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Page 7: Demo Kit Configuration Options
DAC Component The TSW3000 Demo Kit is built for the DAC5687, although this Demo Kit can also support the DAC5686 since the two devices are pin compatible. The procedures outlined in this document are primarily suited for the DAC5687, but can be modified easily for the DAC5686 if desired. -
Page 8: Block Diagrams
System Block Diagram The basic radio system block diagram in Figure 1 demonstrates where the TSW3000 Demo Kit fits in the overall transceiver. The dash-line box illustrates the components found on the TSW3000 Demo Kit board. 0° Modulator 90° Diplexer Demod Figure 1. -
Page 9: Key Texas Instruments Components
• Execute setup.exe Software Operation The following describes the use of the software required to set the TSW3000 Demo Kit in the baseline configuration for the CDCM7005, TRF3750, and DAC5687. The software should be configured in the order presented below. The first step requires starting the TSW3000 software. This opens a window as... -
Page 10: Cdcm7005 Software
4. The default settings are correct for a VCXO of 491.52 MHz and a 10 MHz reference as on the TSW3000. The CDCM7005 GUI allows register settings to be saved and can be loaded back in afterwards. This can be accomplished with the Save and Load Settings buttons near the right side of the GUI. -
Page 11: Default Cdcm7005 Spi Gui
www.ti.com Software Operation Figure 4. Default CDCM7005 SPI GUI The divider parameters, M and N, are determined according to the following equation based on the internal reference frequency and internal VCXO frequency. × M)/(N × P) = (F VCXO The p parameter is the VCXO input divider and set through the FB_MUX value. The M and N counter values need to be adjusted depending on the board configuration. -
Page 12: Trf3750 Software
www.ti.com Software Operation TRF3750 Software The TRF3750 software is used to program the PLL chip to lock the VCO oto a desired frequency output. The main menu of the program is shown in Figure Figure 5. TRF3750 GUI - Main Menu The options in the front panel allow the user to program the desired frequency of the VCO, the desired frequency of the PFD, the reference frequency, and the prescaler selection. -
Page 13: Dac5687 Software
From the menu, select the TSW3000 setting. This configures the port to be compatible with the TSW3000. Once the Demo Kit is powered on with the parallel port configured and connected properly, then the GUI shown in... -
Page 14: Dac5687 Gui Register Descriptions
www.ti.com Software Operation Figure 7. DAC5687 GUI For normal operation, the user needs only to select values and switches as desired. The values are automatically sent to the device and read back to verify their configuration. DAC5687 GUI Register Descriptions 5.4.1 Register Controls •... - Page 15 www.ti.com Software Operation • FIR B– B side first FIR filter in high-pass mode when set, low-pass mode when cleared. • Dual Clk– Only used when the PLL is disabled. When set, two differential clocks are used to input the data to the chip;...
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Page 16: Board Setup
Board Setup Jumper Settings The TSW3000 Demo Kit has on-board jumpers that allow the user to selectively disengage devices as desired. The unit is shipped with jumpers in place that activate all of the devices on board. Table 3 explains the functionality of the jumpers on the board. -
Page 17: Input/Output Connectors
RF sections on the board. Parallel Port The TSW3000 Demo Kit contains a 25-pin parallel port connector (J1) to interface to a standard computer parallel port. Programming of the CDCM7005, DAC5687, and TRF3750 are accomplished through this port. -
Page 18: Test Setup Block Diagram
Figure 8. Test System Block Diagram Test Equipment The following is a list of the test equipment required for testing the TSW3000 Demo Kit. Equivalent models may be used for certain applications, but may produce different results due to limitations within the instrument. -
Page 19: Basic Test Procedure
www.ti.com Basic Test Procedure Table 5. Demo Kit Specifications (continued) UNITS Sideband rejection Spurious Output 2nd harmonic Aliased LSB (pos) Output clock Aliased USB Aliased USB (neg) WCDMA ACPR Channel power ACPR -Low ACPR -High Basic Test Procedure This section outlines the basic test procedure to get the Demo Kit operational. Disconnect the cables at J13 and J14 that connect to the pattern generator. -
Page 20: Dac5687 Program
www.ti.com Basic Test Procedure Table 6. Frequency Designations (continued) VCO BAND UMTS GSM900 DCS1800 High (MHz) 2170 1990 1880 DAC5687 Program • Disable the PLL by removing the jumper at J15, pins 2 and 3, if not already removed. • Verify DACA and DACB Coarse Gain is set to 15 •... -
Page 21: Carrier Suppression
www.ti.com Basic Test Procedure Carrier Suppression The carrier suppression can be tuned for better performance by adjusting the dc-offset controls on the DAC5687. The default DAC GUI is shown below with the NCO mixer turned on to output a 61.44-MHz tone. -
Page 22: Sideband Rejection
www.ti.com Basic Test Procedure Figure 10. Single Sideband Spectrum Output Before DAC Offset and QMC Adjustments An iterative process is used to achieve the best performance. • Place a normal marker at the peak upper sideband, place a delta marker at the carrier signal, and note the initial delta value. -
Page 23: Dac Gui With Typical Settings To Minimize Lo And Sideband
www.ti.com Basic Test Procedure • Place marker delta on the lower sideband • Turn on the QMC. Set the Gain of the QMC to 1024 for gain of 0 dB for I and Q paths. Other initial settings may be needed depending on the state of the NCO gain and signal amplitude. •... -
Page 24: Optional Configurations
www.ti.com Optional Configurations Figure 12. Sideband and LO Optional Configurations External LO To configure the board for external LO implement the following modifications • Remove R225 • Place R2: 0-Ω resistor, this connects the external LO on J10 to the TRF3702 modulator •... -
Page 25: Filter Specifications
10.1 Baseband Filter The TSW3000 Demo Kit layout provides the opportunity to place components to realize up to a 7 order LC filter. The Demo Kit is by default populated with a 500-MHz LC low-pass filter to help eliminate DAC images and also out of band clock spurs which may mix into RF frequencies. -
Page 26: Layers
www.ti.com Layers and Schematics 11.1 Layers The Demo Kit is constructed on a 6-layer, 6.2 inch x 8 inch, 0.062-inch thick PCB using FR-4 material. Figure 13 through Figure 22 show the PCB layout for the Demo Kit. Figure 13. Top Layer SLWU013A –... -
Page 27: Top Layer (Nh)
www.ti.com Layers and Schematics Figure 14. Top Layer (NH) SLWU013A – March 2004 – Revised September 2005... -
Page 28: Layer
www.ti.com Layers and Schematics Figure 15. Layer 2 SLWU013A – March 2004 – Revised September 2005... -
Page 29: Layer
www.ti.com Layers and Schematics Figure 16. Layer 3 SLWU013A – March 2004 – Revised September 2005... -
Page 30: Layer
www.ti.com Layers and Schematics Figure 17. Layer 4 SLWU013A – March 2004 – Revised September 2005... -
Page 31: Layer 4 (Nh)
www.ti.com Layers and Schematics Figure 18. Layer 4 (NH) SLWU013A – March 2004 – Revised September 2005... -
Page 32: Layer
www.ti.com Layers and Schematics Figure 19. Layer 5 SLWU013A – March 2004 – Revised September 2005... -
Page 33: Bottom Layer
www.ti.com Layers and Schematics Figure 20. Bottom Layer SLWU013A – March 2004 – Revised September 2005... -
Page 34: Bottom Silkscreen
www.ti.com Layers and Schematics Figure 21. Bottom Silkscreen SLWU013A – March 2004 – Revised September 2005... -
Page 35: Schematics
Layers and Schematics Figure 22. Drill Drawing 11.2 Schematics The following figures show the schematic for the TSW3000 Demo Kit. SLWU013A – March 2004 – Revised September 2005... - Page 36 CLK1CB (SH 5) .01uF R150 NOTES: 12500 TI Boulevard. Dallas, Texas 75243 Title: CLK1 CLK1B 1. DO NOT INSTALL TSW3000 CLK1B (SH 5) .01uF Engineer: 2. CHANGE TO 0 OHM FOR 50 OHM LOAD R. HOPPENSTEIN Drawn By: SIZE: DATE:...
- Page 37 DB11 DB12 DB13 DB14 DB15 34PIN_IDC (SH 1) DB(0..15) (Note 1) (Note 1) 12500 TI Boulevard. Dallas, Texas 75243 Title: TSW3000 NOTES: Engineer: R. HOPPENSTEIN DOCUMENTCONTROL # 1. DO NOT INSTALL REV: Drawn By: Y. DEWONCK FILE: DATE: 14-Jul-2005 SIZE:...
- Page 38 +3.3VA R193 IOUTB (Note 1) R222 (Note 1) (Note 1) R223 T4-1T-KK81 12500 TI Boulevard. Dallas, Texas 75243 Title: NOTES: TSW3000 Engineer: R. HOPPENSTEIN DOCUMENTCONTROL # 1. DO NOT INSTALL REV: Drawn By: Y. DEWONCK FILE: DATE: 14-Jul-2005 SIZE: SHEET:...
- Page 39 C104 C122 C131 AVCC AVCC AVCC .1uF .1uF .1uF .01uF .001uF 10uF 12500 TI Boulevard. Dallas, Texas 75243 NOTES: Title: TSW3000 1. DO NOT INSTALL Engineer: R. HOPPENSTEIN DOCUMENTCONTROL # REV: Drawn By: Y. DEWONCK FILE: DATE: 14-Jul-2005 SIZE: SHEET:...
- Page 40 +3.3VA 10pF 10pF 100K CTRL_LE (Sh 4) C127 10pF PLL_LE PLL_LE (SH 7) 12500 TI Boulevard. Dallas, Texas 75243 Title: TSW3000 NOTES: Engineer: R. HOPPENSTEIN DOCUMENTCONTROL # 1. DO NOT INSTALL REV: Drawn By: Y. DEWONCK FILE: DATE: 14-Jul-2005 SIZE:...
- Page 41 + C116 FB/NC .1uF 47uF 10uF, 10V .1uF GND/HSINK GND/HSINK 10uF, 10V GND/HSINK GND/HSINK 12500 TI Boulevard. Dallas, Texas 75243 Title: TSW3000 NOTES: Engineer: R. HOPPENSTEIN DOCUMENTCONTROL # 1. DO NOT INSTALL REV: Drawn By: Y. DEWONCK FILE: DATE: 14-Jul-2005 SIZE:...
- Page 42 .1uF R196 R226 THS4221 R218 NOTES: 1. DO NOT INSTALL R199 2. OPTIMIZED VALUES FOR 2 GHz OPERATION 12500 TI Boulevard. Dallas, Texas 75243 Title: TSW3000 Engineer: R. HOPPENSTEIN DOCUMENTCONTROL # REV: Drawn By: Y. DEWONCK FILE: DATE: 14-Jul-2005 SIZE:...
- Page 43 TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions:...
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