Texas Instruments AFE5808/08AEVM Скачать руководство пользователя страница 17 | Manualshive

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Texas Instruments AFE5808/08AEVM Скачать руководство пользователя страница 17

External ADC Sampling Clock

Figure 9. External ADC Sampling Clock Configuration

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

SLOU328A

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November 2011

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Revised December 2011

AFE5808/08AEVM (Rev E) Evaluation Module

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Copyright

©

2011, Texas Instruments Incorporated

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Содержание AFE5808/08AEVM

Страница 1: ...Clock 16 11 External Vcntl 19 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 4 LEDs 23 12 5 Miscellaneous Test Points 24...

Страница 2: ...step by step through the AFE5808 08AEVM Evaluation Module EVM setup and test The EVM is shipped with a default configuration from the manufacturer With this configuration the onboard CMOS clock is use...

Страница 3: ...ownloaded from the TI Web site Follow the directions in the Read Me First pdf file to install the GUI and device driver 4 Test Setup Two EVMs are required to evaluate the AFE5808 08A device The follow...

Страница 4: ...etween TSW1250EVM and AFE5808 08A 5 Power Up AFE5808 08A Power up the AFE5808 08AEVM by applying 5 V and 5 V to the P1 connector After power up is complete four green LEDS and two red LEDS are turned...

Страница 5: ...ED 1 8V www ti com Power Up AFE5808 08A 5 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evaluation Module Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporate...

Страница 6: ...D41 and LED42 go off and the rest of the LEDS remain on The GUI automatically configures the default setup Select the ADC page to observe the default condition The following illustration shows the Def...

Страница 7: ...www ti com Launch AFE5808 08A GUI 7 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evaluation Module Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated...

Страница 8: ...erly If a different message or an error message appears contact TI FAE Select AFE5808 08A 14 bits MSB first from the GUI ADC Sampling Rate is fixed at 40 MHz this is the onboard CMOS clock frequency A...

Страница 9: ...the Time Domain page from the TSW1250 GUI Uncheck Overlay unwrap waveform From the AFE5808 08A GUI go to the ADC page and then select Ramp 9 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM...

Страница 10: ...hannel 8 If each channel has the output as shown in the following illustration proceed with the next step otherwise contact the TI FAE to troubleshoot the problem On the AFE5808 08A GUI change Test Pa...

Страница 11: ...rator to 25dBm Set the frequency of the signal generator to 2 00439453M to match the GUI Change the window option to Hanning This is because the input signal and the onboard CMOS clock are noncoherent...

Страница 12: ...that LEDs 41 43 are on Hardware Setup CW Mode www ti com 9 Hardware Setup CW Mode Figure 4 Setup for CW Mode 12 AFE5808 08AEVM Rev E Evaluation Module SLOU328A November 2011 Revised December 2011 Sub...

Страница 13: ...and LED43 on AFE5808 08AEVM all illuminate Select 500ohms for the gain control feedback resistor Figure 5 Switching From Default ADC Mode Panel to CW Mode Panel 13 SLOU328A November 2011 Revised Decem...

Страница 14: ...ts J12 J13 display the frequency I and Q signals at 10 kHz as shown in Figure 6 The GUI Gain Control Feedback Resistor can be used to vary the amplitude of the outputs Figure 6 CW Outputs 14 AFE5808 0...

Страница 15: ...1 Configuration for Clock Capacitors Capacitor Onboard Clock External Clock Comments C49 Uninstalled Installed Top layer of the EVM C50 Uninstalled Installed Bottom layer of the EVM C52 Uninstalled In...

Страница 16: ...8A 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 the generato...

Страница 17: ...erators for the ADC clock and input signal are synchronous then choose Rectangular as the Windowing option otherwise use Hanning or Hamming 17 SLOU328A November 2011 Revised December 2011 AFE5808 08AE...

Страница 18: ...ww ti com 5 The test procedure is the same for the CMOS ADC clock 18 AFE5808 08AEVM Rev E Evaluation Module SLOU328A November 2011 Revised December 2011 Submit Documentation Feedback Copyright 2011 Te...

Страница 19: ...leftmost two pins A power supply is required to be connected as shown in Figure 10 Figure 10 External Vcntl Configuration 19 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evaluati...

Страница 20: ...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 as shown in Figure 2 required to use the onboard 1 8 V JP2 Onb...

Страница 21: ...via an external operational amplifier The EVM has converted the differential signal CW_VP_OUTP and CW_VP_OUTM into this single ended output through an J13 operational amplifier JP56 JP57 To observe CW...

Страница 22: ...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 Vcntl voltage level...

Страница 23: ...lock buffer Figure 14 AFE5808 08AEVM 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 Orange LED3 3VA 3 3 VA Green LED1 8V 1...

Страница 24: ...P34 AFE808 08A device test pin M8 L5 M5 and M9 JP19 REFM voltage input JP31 SDOUT read enable JP44 RESET input Short to reset AFE5808 08A JP45 TP_5 control enable JP20 REFP voltage input JP21 REF_IN v...

Страница 25: ...Layouts and Schematics The following illustrations show the six layers of the AFE5808 08AEVM board Figure 16 Top Layer Signal 25 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evalu...

Страница 26: ...Layouts and Schematics www ti com Figure 17 Second Layer Ground 26 AFE5808 08AEVM Rev E Evaluation Module SLOU328A November 2011 Revised December 2011 Submit Documentation Feedback Copyright 2011 Texa...

Страница 27: ...rcuit Board Layouts and Schematics Figure 18 Third Layer Power 27 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evaluation Module Submit Documentation Feedback Copyright 2011 Texas...

Страница 28: ...Layouts and Schematics www ti com Figure 19 Fourth Layer Signal 28 AFE5808 08AEVM Rev E Evaluation Module SLOU328A November 2011 Revised December 2011 Submit Documentation Feedback Copyright 2011 Texa...

Страница 29: ...cuit Board Layouts and Schematics Figure 20 Fifth Layer Ground 29 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evaluation Module Submit Documentation Feedback Copyright 2011 Texas...

Страница 30: ...Layouts and Schematics www ti com Figure 21 Bottom Layer Signal 30 AFE5808 08AEVM Rev E Evaluation Module SLOU328A November 2011 Revised December 2011 Submit Documentation Feedback Copyright 2011 Texa...

Страница 31: ...URE GREEN PURE GREEN PURE GREEN www ti com EVM Printed Circuit Board Layouts and Schematics 13 1 Schematics Figure 22 Schematic 1 of 9 31 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Re...

Страница 32: ...Layouts and Schematics www ti com Figure 23 Schematic 2 of 9 32 AFE5808 08AEVM Rev E Evaluation Module SLOU328A November 2011 Revised December 2011 Submit Documentation Feedback Copyright 2011 Texas...

Страница 33: ...rcuit Board Layouts and Schematics Figure 24 Schematic 3 of 9 33 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evaluation Module Submit Documentation Feedback Copyright 2011 Texas...

Страница 34: ...Layouts and Schematics www ti com Figure 25 Schematic 4 of 9 34 AFE5808 08AEVM Rev E Evaluation Module SLOU328A November 2011 Revised December 2011 Submit Documentation Feedback Copyright 2011 Texas...

Страница 35: ...rcuit Board Layouts and Schematics Figure 26 Schematic 5 of 9 35 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evaluation Module Submit Documentation Feedback Copyright 2011 Texas...

Страница 36: ...Layouts and Schematics www ti com Figure 27 Schematic 6 of 9 36 AFE5808 08AEVM Rev E Evaluation Module SLOU328A November 2011 Revised December 2011 Submit Documentation Feedback Copyright 2011 Texas...

Страница 37: ...rcuit Board Layouts and Schematics Figure 28 Schematic 7 of 9 37 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evaluation Module Submit Documentation Feedback Copyright 2011 Texas...

Страница 38: ...Layouts and Schematics www ti com Figure 29 Schematic 8 of 9 38 AFE5808 08AEVM Rev E Evaluation Module SLOU328A November 2011 Revised December 2011 Submit Documentation Feedback Copyright 2011 Texas...

Страница 39: ...rcuit Board Layouts and Schematics Figure 30 Schematic 9 of 9 39 SLOU328A November 2011 Revised December 2011 AFE5808 08AEVM Rev E Evaluation Module Submit Documentation Feedback Copyright 2011 Texas...

Страница 40: ...Digi Key 490 1287 2 ND 2 TAIYO YUDEN LMK105F104ZV C92 C93 CAP SMT 0402 CAPACITOR SMT 0402 CERAMIC 10V Y5V 0 1uF 20 DO NOT INSTALL 2 PANASONIC ECJ 0EB1A105M C110 C111 CAP SMT 0402 CAPACITOR SMT 0402 CE...

Страница 41: ...D 1 TI BURR BROWN OPA211AID U21 IC SMT SOIC 8 1 1nV Hz NOISE LOW POWER PRECISION OPERATIONAL Digi Key 296 22634 1 ND AMPLIFIER 1 TI OPA2614ID U20 IC SMT SOIC 8 DUAL HI GAIN BWIDTH HI OUTPUT CURRENT OP...

Страница 42: ...Digi Key 311 49 9LRTR ND R102 2 VISHAY CRCW0603200F R65 R69 RES SMT 0603 RESISTOR SMT 0603 1 1 10W 200 OHM Digi Key P200HTR ND 2 VISHAY CRCW0603487F R63 R67 RES SMT 0603 RESISTOR SMT 0603 1 1 10W 487...

Страница 43: ...0402 Digi Key 445 1415 1 ND C34 C35 C36 C37 C49 C50 C116 C117 DO NOT INSTALL C49 C50 C116 C117C52 C53 C52 C53 NOTE ASTERISK NEXT TO PART MANUFACTURER S NAME DENOTES POSSIBLE LONG LEAD TIME ITEM RoHs...

Страница 44: ...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 45: ...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...

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