Texas Instruments AFE5807EVM Скачать руководство пользователя страница 12 | Manualshive

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Texas Instruments AFE5807EVM Скачать руководство пользователя страница 12

Analog input
(note absence
of filter)

(J1 - J8)

CW outputs (I
and Q)

(J12, 13)

Note that LEDs
41- 43 are on

Hardware Setup, CW Mode

9

Hardware Setup, CW Mode

Figure 4. Setup for CW Mode

9.1

Step 1: Switch to CW Mode.

•

Go to the CW Mode page.

•

Check CW Mode Enable. The LED41, LED42, and LED43 on AFE5807/08EVM all illuminate.

•

Select 500ohms for the gain control feedback resistor.

12

AFE5807/08EVM (Rev D) Evaluation Module

SLOU309

–

December 2010

Submit Documentation Feedback

Copyright

©

2010, Texas Instruments Incorporated

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Содержание AFE5807EVM

Страница 1: ...lock for CW Mode 14 10 External ADC Sampling Clock 16 11 External Vcntl 18 12 Board Configuration 20 12 1 Input Output Power Supply and USB 20 12 2 CW Mode ADC Clock 21 12 3 Vcntl Control Input 22 12...

Страница 2: ...st The EVM is shipped with a default configuration from the manufacturer With this configuration the onboard CMOS clock is used for a analog to digital converter sampling clock the onboard oscillator...

Страница 3: ...AFE5807 08EVM comes with a software installation compact disk CD run setup exe to install the software 3 1 GUI Installation Mandatory Unzip the installer file in the CD Run setup exe to install the GU...

Страница 4: ...or browse to it by clicking the browse button Once the file path has been entered in the box click Next to proceed If Windows XP is configured to warn when unsigned non WHQL certified drivers are abou...

Страница 5: ...n shows the exact setup of these two boards and external connectors For the default configuration as shown in Figure 1 it is unnecessary to have an external sampling clock and external Vcntl supply Th...

Страница 6: ...wing illustration 6 Launch AFE5807 08 GUI Launch the AFE5807 08 graphic user interface GUI which appears in the following illustration After the GUI has completely launched LED41 and LED42 go off and...

Страница 7: ...displays the following message to indicate that the setup of the TSW1250EVM and AFE5807 08EVM is working properly If a different message or an error message appears contact TI FAE Select AFE5807 14 bi...

Страница 8: ...y ADC Input Frequency enter 2M and the GUI calculates the real coherent frequency to 2 00439453M 8 TEST AFE5807 08 8 1 Step 1 Time Domain Select the Time Domain page from the TSW1250 GUI Uncheck Overl...

Страница 9: ...the Capture button on the TSW1250 GUI You will observe a ramping waveform on the TSW1250 GUI display area as shown in the following illustration Repeat for Channel 2 and Channel 8 9 SLOU309 December 2...

Страница 10: ...VM to a signal generator through an LP filter If an LP filter is not present the result will not be good Set the amplitude of the signal generator to 25dBm Set the frequency of the signal generator to...

Страница 11: ...www ti com TEST AFE5807 08 Figure 3 User Interface Single FFT Format 11 SLOU309 December 2010 AFE5807 08EVM Rev D Evaluation Module Submit Documentation Feedback Copyright 2010 Texas Instruments Incor...

Страница 12: ...e Figure 4 Setup for CW Mode 9 1 Step 1 Switch to CW Mode Go to the CW Mode page Check CW Mode Enable The LED41 LED42 and LED43 on AFE5807 08EVM all illuminate Select 500ohms for the gain control feed...

Страница 13: ...utputs Apply an analog signal 2 51 M 10 dBm to any analog input SMA The CW outputs J12 J13 display the frequency I and Q signals at 10 kHz as shown in Figure 6 The GUI Gain Control Feedback Resistor c...

Страница 14: ...ation for these eight capacitors Table 1 Configuration for Clock Capacitors Capacitor Onboard Clock External Clock Comments C49 Uninstalled Installed Top layer of the EVM C50 Uninstalled Installed Bot...

Страница 15: ...49 www ti com Hardware Setup CW Mode Figure 7 Relevant Capacitors for CW Mode Top Side 15 SLOU309 December 2010 AFE5807 08EVM Rev D Evaluation Module Submit Documentation Feedback Copyright 2010 Texas...

Страница 16: ...he AFE5807 08 perform the following steps 1 Reconfigure JP9 as shown in the following illustration The rest of the jumpers remain the same 2 Connect the external generator as shown in Figure 9 3 Set t...

Страница 17: ...nfiguration 4 If the generators for the ADC clock and input signal are synchronous then choose Rectangular as the Windowing option otherwise use Hanning or Hamming 17 SLOU309 December 2010 AFE5807 08E...

Страница 18: ...11 External Vcntl JP15 needs to be reconfigured to short the leftmost two pins A power supply is required to be connected as shown in Figure 10 18 AFE5807 08EVM Rev D Evaluation Module SLOU309 Decembe...

Страница 19: ...Supply www ti com External Vcntl Figure 10 External Vcntl Configuration 19 SLOU309 December 2010 AFE5807 08EVM Rev D Evaluation Module Submit Documentation Feedback Copyright 2010 Texas Instruments In...

Страница 20: ...est point for 5 V 5 V power supply JP3 Onboard 5 V enable Set up as Figure 2 is a must to use onboard 5 V supply XP 5V 5 V supply test point TP5V 5 V supply test point JP1 Onboard 1 8 V enable Set up...

Страница 21: ...perational amplifier the user can probe JP52 and JP53 CW Mode CW output for V channel via an external operational amplifier The EVM has converted the differential signal CW_VP_OUTP and CW_VP_OUTM into...

Страница 22: ...r external Vcntl The default setup uses onboard Vcntl J14 External Vcntl input The range is from 0 V to 1 5 V VR2 Onboard Vcntl adjustment Use JP15 pin 3 which has the text On Board to monitor the Vcn...

Страница 23: ...pplies and the PLL status of the clock buffer Figure 14 AFE5807 08EVM LED Location Table 5 LED Indicators Reference Designator Power Supply Color LED 5V 5 V Green LED5V 5 V Green LED3 3VD 3 3 VD Orang...

Страница 24: ...nator Description TP9 TP12 TP13 TP34 AFE5807 08 device test pin M8 L5 M5 and M9 JP19 REFM voltage input JP31 SDOUT read enable JP44 RESET input Short to reset AFE5807 JP45 TP_5 control enable JP20 REF...

Страница 25: ...ircuit Board Layouts and Schematics The following illustrations show the six layers of the AFE5807 08EVM board Figure 16 Top Layer Signal 25 SLOU309 December 2010 AFE5807 08EVM Rev D Evaluation Module...

Страница 26: ...rcuit Board Layouts and Schematics www ti com Figure 17 Second Layer Ground 26 AFE5807 08EVM Rev D Evaluation Module SLOU309 December 2010 Submit Documentation Feedback Copyright 2010 Texas Instrument...

Страница 27: ...M Printed Circuit Board Layouts and Schematics Figure 18 Third Layer Power 27 SLOU309 December 2010 AFE5807 08EVM Rev D Evaluation Module Submit Documentation Feedback Copyright 2010 Texas Instruments...

Страница 28: ...rcuit Board Layouts and Schematics www ti com Figure 19 Fourth Layer Signal 28 AFE5807 08EVM Rev D Evaluation Module SLOU309 December 2010 Submit Documentation Feedback Copyright 2010 Texas Instrument...

Страница 29: ...M Printed Circuit Board Layouts and Schematics Figure 20 Fifth Layer Ground 29 SLOU309 December 2010 AFE5807 08EVM Rev D Evaluation Module Submit Documentation Feedback Copyright 2010 Texas Instrument...

Страница 30: ...nd Schematics www ti com Figure 21 Bottom Layer Signal The schematic sheets are appended to the end of this document 30 AFE5807 08EVM Rev D Evaluation Module SLOU309 December 2010 Submit Documentation...

Страница 31: ...1VB1C105K C20 C70 C87 C89 CAP SMT 0603 CAPACITOR SMT 0603 CERAMIC 1 0uF 16V 10 X5R 1 TAIYO YUDEN JMK107BJ106MA T C176 CAP SMT 0603 CAPACITOR SMT 0603 CERAMIC 10uF 6 3V 20 X5R 6 KEMET C1206C226K8PAC C...

Страница 32: ...04021002F100 R62 RES SMT 0402 RESISTOR SMT 0402 10K 1 16W 1 100ppm 2 VISHAY CRCW04022002F100 R71 R110 RES SMT 0402 RESISTOR SMT 0402 20K 1 16W 1 100ppm 1 VISHAY CRCW04024701F100 R55 RES SMT 0402 RESIS...

Страница 33: ...HU 1P TESTPOINT THU MINIATURE 0 1LS 120TL WHITE ELECTRONICS 4 KEYSTONE 5004 TP9 TP12 TP13 TP34 TESTPOINT THU 1P TESTPOINT THU MINIATURE 0 1LS 120TL YELLOW ELECTRONICS 3 MINI CIRCUITS ADT4 1WT T1 T3 T4...

Страница 34: ...roduct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engin...

Страница 35: ...or 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...

Страница 36: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments AFE5808EVM...

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