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National Semiconductor LM98640CVAL, User Manual

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National Semiconductor LM98640CVAL User Manual Download Page 7

Electronic Component Distributor. Source::Texas Instruments

 P.N:LM98640CVAL Desc:EVAL BOARD FOR LM98640 
Web:http://www.hotenda.cn E-mail:[email protected] Phone:(+86) 075583794354

 

 

 
 

 

 

 

   

4.2 Page 2: Analog Front End Section 

 

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Summary of Contents for LM98640CVAL

Page 1: ...LM98640 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 September 2009 Revision 1 0 LM98640CVAL Evaluation Board User s Guide LM98640QML Dual Channel Analog Front End Evaluation Board Copyright 2009 National Semiconductor Corporation LM98640QML Evaluation Board User s Guide ...

Page 2: ... 11 4 7 Page 7 Power Input Section 12 5 0 Evaluation Board Specifications 13 6 0 Bill of Materials 14 7 0 Appendix A Using the AFEval software and the Wavevision 5 Data Capture Board 17 7 1 Connecting the WV5 board and LM98640CVAL board for the first time 17 7 2 Proper Board Connection and Power Sequencing 17 7 3 Starting the AFEval software 18 7 4 LM98640QML Main Configuration Panel 20 7 5 Regist...

Page 3: ...rdvark I2C SPI Host Adapter is supplied to perform the SPI communication using the AFEval tool A PCB footprint for and external clock oscillator is provided on board to allow testing without the need of an external clock source An SMA connection is available for connecting an external clock source when a variable frequency may be desired The power supply for the LM98640QML and surrounding circuitr...

Page 4: ...ions are shown below 3 2 AFE Analog Input Section The Analog signals for the LM98640CVAL Board enter through SMA connectors and there are a variety of options onboard to modify or condition the input signal to meet the specifications of the LM98640QML analog inputs Signals can be AC coupled using capacitors C2 and C5 the bias point for the AFE side of the AC coupling capacitor can be set by using ...

Page 5: ...he LM98640QML is configured in Dual Lane Mode and the frequency is greater than 35MHz unexpected results may occur To facilitate other methods of evaluation the LM98640CVAL Customer Evaluation boards come with a daughter board that has three types of connectors a 3M MDR Camera Link connector an Agilent Soft Touch connector and an 18 pin dual row header To select a particular connector the associat...

Page 6: ...Distributor Source Texas Instruments P N LM98640CVAL Desc EVAL BOARD FOR LM98640 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 4 0 Schematic Drawing LM98640QML 4 1 Page 1 Top Level Block Connectivity ...

Page 7: ...ctronic Component Distributor Source Texas Instruments P N LM98640CVAL Desc EVAL BOARD FOR LM98640 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 4 2 Page 2 Analog Front End Section ...

Page 8: ...lectronic Component Distributor Source Texas Instruments P N LM98640CVAL Desc EVAL BOARD FOR LM98640 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 4 3 Page 3 Analog Input Section ...

Page 9: ...Electronic Component Distributor Source Texas Instruments P N LM98640CVAL Desc EVAL BOARD FOR LM98640 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 4 4 Page 4 Clock Input Section ...

Page 10: ...Electronic Component Distributor Source Texas Instruments P N LM98640CVAL Desc EVAL BOARD FOR LM98640 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 4 5 Page 5 Data Output Section ...

Page 11: ...ctronic Component Distributor Source Texas Instruments P N LM98640CVAL Desc EVAL BOARD FOR LM98640 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 4 6 Page 6 Daughter Board Connector ...

Page 12: ...Electronic Component Distributor Source Texas Instruments P N LM98640CVAL Desc EVAL BOARD FOR LM98640 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 4 7 Page 7 Power Input Section ...

Page 13: ...nda cn Phone 86 075583794354 5 0 Evaluation Board Specifications Main Board Size 3 75in x 5in Daughter Board Size 1 25in x 5in Clock Frequency Range 5 MHz to 40 MHz VEXT Input Voltage Range 0 to 18V 5V EXT Input Voltage Range 5 0V 10 5 0V EXT Input Voltage Range 5 0V 10 3 3V EXT Input Voltage Range 3 3V 10 1 8V EXT Input Voltage Range 1 8V 10 ...

Page 14: ...54 47uF 478 3264 1 12 2 C55 C56 4 7uF 399 3699 1 13 5 D1 D2 D3 D4 D5 1N5819 B140 FDICT 14 1 JF1 header Logic Analyzer S2011E 10 15 1 JF2 CONN 60 PIN HMZD 6469028 1 16 1 JF3 HEADER 5X2 S2011E 5 17 3 JF4 JF5 JF6 CONN 60 PIN HMZD 6469169 1 18 1 JF7 CONN CAMLINK 26 PIN 3M1819 19 1 JF8 E3587A Header E5387 68701 20 1 JF9 HEADER 13X2 S2011E 13 21 1 JP1 SHUTDOWN S1011E 2 22 1 JP4 CLK_VCC S1011E 2 23 1 JP6...

Page 15: ...9 R20 R21 20k P20 0KHCT 48 2 R23 R27 49 9 P49 9HCT 49 1 R25 22 1 P22 1HCT 50 2 R29 R30 0 311 0 0GRCT 51 2 R31 R33 10k P10 0KHCT 52 19 R32 R36 R37 R38 R39 R40 100 P100LCT R41 R42 R43 R44 R45 R46 R47 R48 R49 R50 R51 R52 R53 53 1 TP1 OS1 S1011E 1 54 1 TP2 OS1 S1011E 1 55 1 TP3 OS2 S1011E 1 56 1 TP4 OS2 S1011E 1 57 1 TP5 VCLP 5015KCT 58 1 TP6 VREFT2 5015KCT 59 1 TP7 VREFB2 5015KCT 60 1 TP8 VCOM2 5015K...

Page 16: ...0 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 74 1 U3 NC7WV125 NC7WV125K8X 75 1 U4 DS90LV011ATMF DS90LV011ATMF 76 1 U5 AT24C02 10SI 2 7 511 M24C02 WMN6P 77 1 U6 LM1117DTX 3 3 LM1117DTX 3 3 78 2 U7 U8 LM1117DTX 1 8 LM1117DTX 1 8 79 1 U9 74AHC1G14 296 1092 1 ND 80 1 Y1 OSC N A ...

Page 17: ...nnect the Wavevision 5 board connector U2 to the LM98640CVAL board connector JF2 2 Configure the JP6 and JP7 jumpers on the LM98640CVAL board for the desired power supply source For initial experiments it is recommended that the jumpers are configured between pins 1 and 2 to allow supply power from the WV5 board 3 Plug in the AC DC power supply to the J2 connector on the Wavevision 5 board Turn th...

Page 18: ...LM98640 Web http www hotenda cn E mail sales hotenda cn Phone 86 075583794354 7 3 Starting the AFEval software Start the AFEval software Start All Programs National Semiconductor AFEval The software may take a few seconds to initialize but should display an About screen similar to the following ...

Page 19: ...one of the available devices in the list box and then hit the Choose Offline Device button If the software finds a valid AFE definition file for the device it will open the evaluation environment for the requested device Device dll files are located in the same directory as the installed executable file Definition files are located in the directory install directory def where install directory is ...

Page 20: ...Main Configuration Panel will be automatically displayed as shown The Main Configuration Panel gives a top level view of the LM98640QML The system clocking settings of the device is configured using the controls on the left edge of the window The Powerdown features of the device are configured using the controls on the top edges of the window LVDS Output features are configured using the controls ...

Page 21: ...egister data grid will expose the register s Bitfield names in the Bitfield data grid on the right side of the window You can modify the selected register s contents by clicking on the individual bit buttons shown above the Read and Write buttons or by modifying the decimal or hexadecimal text box contents The Value data grid can also be used to modify the selected Bitfield of the chosen register ...

Page 22: ...First the user should enable the Digital Test Monitor pins by selecting one of the radio buttons in the lower left control The user can than monitor the CLAMP and SAMPLE pulses along with the input signal on a scope and use the Start End numeric controls to align the pulses to their appropriate positions The text under each waveform identifies which clamp and sample pulses are related In Sample Ho...

Page 23: ...es will be the AFE output To test the data path itself several LM98640QML Test Patterns can be chosen Refer to the datasheet for more information on the available test patterns and how to properly configure the selected pattern To Zoom In on the waveform 1 Depress the left mouse button keeping it down and drag the mouse to select the desired window width 2 Lift the left mouse button when you have ...

Page 24: ...vice drivers for the Aardvark device The drivers for the Aardvark SPI module should be installed according to the instructions and CD which accompanied the device 8 2 Connecting the Aardvark SPI device and LM98640CVAL board for the first time To facilitate external test equipment based data capture the LM98640CVAL development board allows for SPI communication through a 2x5 dual row header The Tot...

Page 25: ...g screen Using the mouse click on the LM98640 text in the list box then click the Choose Offline Device button The software will then search for the Aardvark device If the Aardvark device is detected it will become the source of SPI communication The Data Capture GUI will still be available to aid in configuring the various test mode outputs but the actual data capture will not be functional due t...

Page 26: ...are uses the Microsoft NET Framework The underlying NET Framework must be installed on your computer in order for the AFEval software to run The software can run with NET 2 0 or higher The AFEval installer will first look for an existing copy of the NET Framework on your computer If it is not found the installer will ask if you want to install it Follow the on screen instructions to finish the ins...

Page 27: ...sible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necessary expertise in the safety and ...

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