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This development guide describes the characteristics, operation and use of the VCA5807EVM
demonstration kit. This demonstration kit is an evaluation module for the VCA5807 device. The VCA5807
is an integrated Voltage Controlled Amplifier (VCA) that integrates a complete time-gain-control (TGC)
imaging path and a continuous wave Doppler (CWD) path. The VCA5807 is intended for prototyping and
evaluation. This user's guide includes a complete circuit description, schematic diagram, and bill of
materials (BOM).
The following related documents are available through the Texas Instruments web site at
http://www.ti.com.
Device
VCA5807
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1.1
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2.1
2.2
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3.1
3.2
3.3
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4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
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5
5.1
5.2
5.3
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Windows is a registered trademark of Microsoft Corporation.
SLOU352 - November 2012
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Table 1. Related Document
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Copyright © 2012, Texas Instruments Incorporated
VCA5807 Development Guide
Literature Number
SLOS727
Contents
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List of Figures
User's Guide
SLOU352 - November 2012
VCA5807 Development Guide
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Table of Contents
Related Manuals for Texas Instruments VCA5807
Summary of Contents for Texas Instruments VCA5807
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Page 1: Table Of Contents
Voltage Controlled Amplifier (VCA) that integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. The VCA5807 is intended for prototyping and evaluation. This user's guide includes a complete circuit description, schematic diagram, and bill of materials (BOM). - Page 2 Schematic 8 of 10 ......................Schematic 9 of 10 ......................Schematic 10 of 10 List of Tables ......................Related Document ........................ Power Table ......................Bill of Materials VCA5807 Development Guide SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
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Page 3: Vca5807 Overview
Use the VCA5807 only under the following conditions: • The VCA5807EVM is intended only for electrical evaluation of the features of the VCA5807 device in a laboratory, simulation, or development environment. • The VCA5807EVM is not intended for direct interface with a patient, or patient diagnostics. -
Page 4: Default Configuration
5. P15: Chooses the device Common Mode for the I/V Amp Common Mode 6. P16: Chooses Vss as –5 V for low-side power supply on I/V Amp VCA5807 Development Guide SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 5: Software Installation And Operation
Power supply to supply ±5 V Installing the Software (PC Application) The GUI software to evaluate the VCA5807 device is available at the Texas Instruments web site at www.ti.com (VCA5807). Before installing the software, make sure the VCA5807EVM is not connected to the PC. If using a machine with Windows 7, it is recommended to have administrator rights to avoid problems during installation. -
Page 6: Gui Overview
Every tab in the VCA5807EVM GUI has a software reset option available by clicking the Software Reset button located at the bottom right of the GUI. The VCA Introduction tab: This tab gives a block diagram of the VCA5807 device. Figure 2. Introduction Tab of the VCA5807EVM GUI VCA5807 Development Guide SLOU352 –... -
Page 7: Hardware/Power/Rst Tab Of The Vca5807Evm Gui
Software Installation and Operation www.ti.com The VCA HARDWARE/POWER/RST tab: This tab allows the execution of different power down options. Figure 3. Hardware/Power/RST Tab of the VCA5807EVM GUI SLOU352 – November 2012 VCA5807 Development Guide Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 8: Vca Lna+Vca+Pga+Lpf Tab Of The Vca5807Evm Gui
PGA: Adjusts the PGA gain, Clamp Level, and disable both the overload clamp and the offset integrator • LPF: Adjusts the LPF frequency Figure 4. VCA LNA+VCA+PGA+LPF Tab of the VCA5807EVM GUI VCA5807 Development Guide SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 9: Vca Cw Mode Tab
CW channel (1-8), the CW CLK, and the feedback resistors to control the gain. CH7 and CH8 are brought to the CW pins by using the PGA Test Mode. Figure 5. VCA CW Mode Tab SLOU352 – November 2012 VCA5807 Development Guide Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 10: Vca Debugging/Recording Tab
Exec CMD File button. This tab also displays the Write Status, and the ability to see the digital waveform of the SCLK, SDATA, and SEN pins. Figure 6. VCA Debugging/Recording Tab VCA5807 Development Guide SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 11: Hardware
1, it is unnecessary to have an external sampling clock and external Vcntl supply. The onboard CMOS clock and onboard Vcntl are used. Figure 7. HW Setup SLOU352 – November 2012 VCA5807 Development Guide Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 12: Board Configuration
LEDs and three red LEDs (LED 41, LED42, and LED 43) are turned. Locations of LEDs are shown in Figure Figure 8. PCB Layout With Jumper Positions VCA5807 Development Guide SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 13: Power
Ground test points Clock Buffer The clock buffer drives the VCA5807 device. Each clock buffer output should only drive one VCA5807. Do not use one clock to drive multiple VCA5807s. This is due to the fact that the clock buffer's load capacitance increases by a factor of N, which then results in degraded falling and rising times. -
Page 14: Cw Mode
Hardware www.ti.com CW Mode Figure 9. CW Mode Hardware Configuration VCA5807 Development Guide SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 15: Switching To Cw Mode
Check CW MODE ENABLE. LED41, LED42, and LED43 on the VCA5807EVM should all illuminate. • Select 500 Ω for the gain control feedback resistor. Figure 10. Switching to CW Mode SLOU352 – November 2012 VCA5807 Development Guide Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 16: Vcontrol
P13 and P14 are test points for the USB data bus: From pin 1 to pin 9, the signals are D0, D4, D2, D1, D7, D5, D6, D3, and DGND. P14 on the VCA5807EVM is not installed. VCA5807 Development Guide SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 17: Quick Start
–32 dBm, load resistance of 50 Ω, and an overall gain of 42 dB, the output should read ≈4 dBm or 1 Vpp. For more details and other modes for testing and evaluating the VCA5807 device, please refer to the previous pages of this development guide. -
Page 18: Appendix A Bill Of Materials (Bom)
J1, J3, J5, J7, J9, J10, J12, J13, J26, CONNECTOR,SMA SMA COAX STRAIGHT PCB J27, J30, J32, J33, J36 CURRENT P/N IS 901-144-8RFX Bill of Materials (BOM) SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... - Page 19 R798, R799, R800, R801, R802, R803, R804, R805, R806, R807, R808, R809, R810, R811, R812, R813, R814, R815, R816, R817, R818, R819, R820, R852, R853, R854 SLOU352 – November 2012 Bill of Materials (BOM) Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
- Page 20 R62, R72, R73, R75 PBC09SAAN UNINSTALLED HEADER,THU,MALE,0.1LS,9P,1X9,3 35H,120TL 0402YC104KAT2A(UN) C27, C28,C100, C102 UNINSTALLED UNINSTALLED TAIYO YUDEN LMK105BJ104KV- F C42, C44 CAP,SMT,0402 CAPACITOR,SMT,0402,CERAMIC,1 0V,Y5V,0.1uF,20% Bill of Materials (BOM) SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
- Page 21 Note: Asterisk(*) next to part manufacturer's name denotes possible long lead time item. * Green= Exact part, No Substitutions * Blue= Uninstalled * Yellow= TI Provided part SLOU352 – November 2012 Bill of Materials (BOM) Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
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Page 22: Appendix Bpcb Layout And Schematics
Appendix B PCB Layout and Schematics PCB Layout Figure 12 through Figure 17 show the PCB layouts for this EVM. Figure 12. Top Layer - Signal PCB Layout and Schematics SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 23: Second Layer - Ground
PCB Layout www.ti.com Figure 13. Second Layer - Ground SLOU352 – November 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 24: Third Layer - Power
PCB Layout www.ti.com Figure 14. Third Layer - Power PCB Layout and Schematics SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 25: Fourth Layer - Signal
PCB Layout www.ti.com Figure 15. Fourth Layer - Signal SLOU352 – November 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 26: Fifth Layer - Ground
PCB Layout www.ti.com Figure 16. Fifth Layer - Ground PCB Layout and Schematics SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 27: Bottom Layer - Signal
PCB Layout www.ti.com Figure 17. Bottom Layer - Signal SLOU352 – November 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 28: Schematic 1 Of
Schematics Figure 18 through Figure 27 show the schematics for this EVM in landscape mode, for readability. Figure 18. Schematic 1 of 10 PCB Layout and Schematics SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 29: Schematic 2 Of
OSC1 CLK_BUF LED43 CLK_BUF C130 C138 C137 C136 C135 C134 C139 C140 C131 C133 C132 C128 C129 Figure 19. Schematic 2 of 10 SLOU352 – November 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 30: Schematic 3 Of
Schematics www.ti.com TP10 C103 C104 C107 C108 C109 C118 C116 C119 C121 C123 C125 C126 Figure 20. Schematic 3 of 10 PCB Layout and Schematics SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 31: Schematic 4 Of
R831 R832 R836 R835 R834 R833 TP46 TP48 TP47 TP49 C294 C295 C365 C366 C310 C308 C309 Figure 21. Schematic 4 of 10 SLOU352 – November 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 32: Schematic 5 Of
R777 C336 C345 C337 R813 C311 R804 C355 R845 C354 R844 C328 R820 R794 C312 C338 R819 Figure 22. Schematic 5 of 10 PCB Layout and Schematics SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 33: Schematic 6 Of
Schematics www.ti.com C100 C101 C102 C141 Figure 23. Schematic 6 of 10 SLOU352 – November 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 34: Schematic 7 Of
Schematics www.ti.com JP15 C172 JP16 C171 C161 VCON_OPAMP C162 JP17 C163 JP29 C174 C173 C159 C160 C170 Figure 24. Schematic 7 of 10 PCB Layout and Schematics SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 35: Schematic 8 Of
Schematics www.ti.com JP52 JP53 JP56 JP57 Figure 25. Schematic 8 of 10 SLOU352 – November 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 36: Schematic 9 Of
We isolate the USB circuit from C175 C176 the rest of the board. The circuits are only coupled through the opto-isolators. Figure 26. Schematic 9 of 10 PCB Layout and Schematics SLOU352 – November 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 37: Schematic 10 Of
Op-Amps for maximum flexibility Differential could fit between the single-ended amps in the layout. Figure 27. Schematic 10 of 10 SLOU352 – November 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... - Page 38 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
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