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Texas Instruments TPS7A4501-SP User Manual Download Page 34

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ADC

5/31/2016

MHR023A_ADC.SchDoc

Sheet Title:

Size:

Mod. Date:

File:

Sheet:

of

B

http://www.ti.com

Contact:

http://www.ti.com/support

ADS1282EVM-CVAL

Project Title:

Designed for:

Public Release

Assembly Variant:

001

©

Texas Instruments

2016

Drawn By:
Engineer:

Wade VonBergen
Wade VonBergen

Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this specification or any information contained therein. Texas Instruments and/or its licensors do not 
warrant that this design will meet the specifications, will be suitable for your application or fit for any particular purpose, or will operate in an implementation. Texas Instruments and/or its 
licensors do not warrant that the design is production worthy. You should completely validate and test your design implementation to confirm the system functionality for your application.

Version control disabled

SVN Rev:

MHR023

Number:

Rev:

A

TID #:

N/A

Orderable:

ADS1282EVM-CVAL

SCLK

nDRDY

nPWDN

nRESET

MOSI
MISO

MFLAG

1

2

3

J17

LP_CLK

LP_CLK

VDD

4

E/C

1

GND

2

OUT

3

4.096 MHz

Y1

VCC3

VCC3

GND

GND

1

2

3

4

5

6

J14

GND

GND

0

R69

100k

R58

100k

R55

100k

R61

nRESET

GND

nPWDN

MFLAG

MOSI

MISO

SCLK

VCC5

VCC3

1

µ

F

C50

100k

R53

GND

VCC3

VCC5

GND

100k

R87

VCC3

100k

R80

47

R67

47

R70

0

R86

DNP

AINP1

AINN1

AINP2

AINN2

TP26

TP3 TP15 TP2 TP27

GND

VREFP_2ADC

GND

GND

nDRDY

SH-J2

TP21

1
2
3

J16

SH-J1

OSC_ENABLE

CLK_SELECT

ADC_CLK

0.01

µ

F

C33

1

µ

F

C37

1

µ

F

C43

1

µ

F

C40

SCLK

2

DOUT

4

DIN

5

DGND

6

MFLAG

11

DGND

12

AINP2

15

AINN2

16

AINP1

17

AINN1

18

CLK

1

DRDY

3

MCLK

7

M1

8

M0

9

SYNC

10

CAP+

14

CAP-

13

AVDD

19

AVSS

20

VREFN

21

VREFP

22

PWDN

23

RESET

24

DGND

25

DVDD

26

DGND

27

BYPAS

28

U6

ADS1282HKV/EM

5

4

1
2
3

6
7
8
9

10

J21

5

4

1
2
3

6
7
8
9

10

J22

GND

2ADC_CAP

27

R91

1

2
3
4
5

J19

GND

75.0k

R50

DNP

75.0k

R44

DNP

GND

GND

Red

D3

GND

3.30k

R6

TP11

MFLAG

     Copyright © 2016, Texas Instruments Incorporated

ADS1282-SP EVM Schematic

www.ti.com

34

SBAU274 – July 2016

Submit Documentation Feedback

Copyright © 2016, Texas Instruments Incorporated

ADS1282-SP Evaluation Module (ADS1282EVM-CVAL)

7

ADS1282-SP EVM Schematic

Figure 39

,

Figure 40

, and

Figure 41

illustrate the EVM schematics.

Figure 39. ADS1282-SP EVM Schematic ADC

Summary of Contents for TPS7A4501-SP

Page 1: ...P430FR5969 Setup 5 4 2 ADS1282 SP GUI Setup 6 5 ADS1282 SP EVM Detailed Description 13 5 1 ADS1282 SP Clock Configuration Options 13 5 2 ADS1282 SP Analog Inputs 14 5 3 ADS1282 SP MFLAG Overdrive Indi...

Page 2: ...rt Step 3 22 25 ADS1282 SP GUI Quick Start STEP 4 23 26 ADS1282 SP GUI Quick Start Show All Steps 23 27 ADS1282 SP GUI Settings Page 24 28 ADS1282 SP GUI Data Capture 25 29 ADS1282 SP Data Capture Zoo...

Page 3: ...frequency domain analysis of captured data with the option to export captured data to a file Figure 1 ADS1282 SP EVM with MSP430 LaunchPad 2 ADS1282 SP Software GUI Installation Download the ADS1282...

Page 4: ...hPad with ADS1282 SP Firmware www ti com 4 SBAU274 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS1282 SP Evaluation Module ADS1282EVM CVAL Figure 2 ADS1282 S...

Page 5: ...P430FR5969 Setup Figure 3 illustrates the necessary hardware connections to begin testing A With care mate connectors J21 and J22 of the ADS1282EVM CVAL to connectors J5 and J4 of the MSP430FR5969 res...

Page 6: ...he home page of the GUI appears see Figure 5 The green Connected button will appear if all of the following is true 1 MSP430 firmware has been loaded properly 2 MSP430 LaunchPad is connected to PC via...

Page 7: ...it Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS1282 SP Evaluation Module ADS1282EVM CVAL Complete STEP 1 of the Quick Start page by clicking the Reset device button followe...

Page 8: ...ion Feedback Copyright 2016 Texas Instruments Incorporated ADS1282 SP Evaluation Module ADS1282EVM CVAL Complete STEP 2 of the Quick Start page by leaving the Device Clock Selection as the default set...

Page 9: ...ack Copyright 2016 Texas Instruments Incorporated ADS1282 SP Evaluation Module ADS1282EVM CVAL Complete STEP 3 of the Quick Start page by leaving the Filter and Data Selection configuration as the def...

Page 10: ...yright 2016 Texas Instruments Incorporated ADS1282 SP Evaluation Module ADS1282EVM CVAL Complete STEP 4 of the Quick Start page by leaving the MUX and PGA Gain Selection configuration as the default s...

Page 11: ...1282EVM CVAL Click the Start Capture button to plot data from the ADC Click the Frequency Domain button to measure the integrated signal to noise SNR in dBFS In the following example the 1st Nyquist i...

Page 12: ...eved by clicking and holding the mouse button on the plot and dragging the mouse to vertical or horizontal zoom extents NOTE Although the ADS1282 SP is designed to handle a 5 Vpp differential analog i...

Page 13: ...P EVM GUI Show All Steps 5 ADS1282 SP EVM Detailed Description The following sub sections describe the ADS1282 SP EVM in detail 5 1 ADS1282 SP Clock Configuration Options The EVM provides three option...

Page 14: ...Configuration Reference Designator of Pins Default Config Pin 1 Silk Screen Pin 2 or 3 Silk Screen Default Function Alternate Function J6 3 Short pins 2 3 OFF ON Shorts 12 V to inputs of 3 regulators...

Page 15: ...round Plane TP5 GND Power Global Ground Plane TP6 VCC10REG Power 10 V Regulator Output b TP7 N A Power 10 V Regulator Output a TP8 GND Power Global Ground Plane TP9 N A Power 5 V Regulator Output a TP...

Page 16: ...se from any digital circuitry such as the data output serializer or the microprocessor receiving the data For the device care must be taken to ensure that the interaction between the analog and digita...

Page 17: ...rrect firmware loaded then the green Connected button will appear The top half of the Introduction page provides key features of the device as well as a functional block diagram when pressing Learn Mo...

Page 18: ...Texas Instruments Incorporated ADS1282 SP Evaluation Module ADS1282EVM CVAL Figure 16 ADS1282 SP GUI Top Most Border The left most border contains icon links to the six pages of the GUI The selected i...

Page 19: ...P GUI Bottom Most Border 6 2 Quick Start Page The Quick Start page accessed by clicking the lightning bolt icon provides a quick and easy way to start evaluating the device The first time the GUI is u...

Page 20: ...orated ADS1282 SP Evaluation Module ADS1282EVM CVAL Figure 20 shows the default clock configuration which uses a on board 4 096 MHz crystal oscillator By hovering over the picture with the mouse the g...

Page 21: ...sure the jumpers have been moved to use this configuration Figure 21 ADS1282 SP GUI Quick Start STEP 2 It is also possible for the user to specify and supply a clock to the EVM This is required if coh...

Page 22: ...in Figure 23 The default state of the device is to take digital data from the SINC FIR LPF at 1000 SPS with the FIR LPF phase set to Linear Phase Figure 23 ADS1282 SP GUI Quick Start STEP 3 The Digita...

Page 23: ...L STEP 4 of the Quick Start page is MUX And PGA Gain Selection as shown in Figure 25 Figure 25 ADS1282 SP GUI Quick Start STEP 4 Once a user is familiar with the GUI and device it is convenient to dis...

Page 24: ...s applied the proper offset may not be obtained Clicking the Calibrate Gain button invokes computation internal to the device that determines the difference between positive and negative full scale co...

Page 25: ...e the graph with the same name Figure 28 ADS1282 SP GUI Data Capture The Data Capture page shown in Figure 28 is where captured data is displayed and analyzed The two modes of graphing 1 Time Domain a...

Page 26: ...1282EVM CVAL Zooming is done in the x and y dimension independently by holding the left mouse button down and dragging to the zoom extent before releasing the mouse button as shown in Figure 29 and Fi...

Page 27: ...vice as shown in Figure 31 This panel is available on all GUI pages with the exception of the Introduction page and the Collateral page Figure 31 ADS1282 SP Data Capture Zooming The Start Capture butt...

Page 28: ...or the displayed results to be accurate The default EVM configuration provides a 5 V reference voltage The Coherent Frequency Calculator determines the nearest coherent frequency to a desired input fr...

Page 29: ...4 1 Time Domain Graphing and Analysis The sections of data capture view that are unique to a time domain plot are 1 Axis Control and 2 Output Parameters The Axis Control section allows users to chang...

Page 30: ...emoval and inclusion of selected frequency bins The default filter settings are to remove 25 bins around the detected fundamental remove 25 bins at DC and include 5 harmonics of the detected fundament...

Page 31: ...age shown in Figure 36 allows low level access to all SPI registers of the ADS1282 SP device Clicking the question mark to the right of the Register Name will bring up an extraction from the datasheet...

Page 32: ...mit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS1282 SP Evaluation Module ADS1282EVM CVAL Clicking the question mark within each field view will display a description of th...

Page 33: ...Evaluation Module ADS1282EVM CVAL 6 6 Collateral Page The last page of the GUI is the Collateral page Figure 38 which contains links to web documents pertinent to the ADS1282 SP and its EVM The page i...

Page 34: ...MOSI MISO MFLAG 1 2 3 J17 LP_CLK LP_CLK VDD 4 E C 1 GND 2 OUT 3 4 096 MHz Y1 VCC3 VCC3 GND GND 1 2 3 4 5 6 J14 GND GND 0 R69 100k R58 100k R55 100k R61 nRESET GND nPWDN MFLAG MOSI MISO SCLK VCC5 VCC3...

Page 35: ...R84 DNP 47 0k R73 DNP GND GND 1000pF C49 1000pF C15 50 R76 50 R85 50 R25 50 R12 47 0k R24 DNP 47 0k R9 DNP GND GND 0 R21 DNP 0 R20 DNP AVDD_ 10V GND GND GND 1 00k R68 1 00k R34 1 00k R92 1 00k R5 1 F...

Page 36: ...22 F C27 22 F C26 SHDN 1 IN 2 IN 3 IN 4 NC 5 OUT 6 OUT 7 OUT 8 SENSE ADJ 9 GND 10 PAD 11 U1 TPS7A4501HKU EM GND 3 20k R36 10 0k 0 1 R29 0 1 F C21 SHDN 1 IN 2 IN 3 IN 4 NC 5 OUT 6 OUT 7 OUT 8 SENSE ADJ...

Page 37: ...X C33 1 0 01uF CAP CERM 0 01 F 50 V 5 C0G NP0 0805 0805 GRM2195C1H103JA 01D Murata D1 1 15V Diode Schottky 15 V 25 A DDPAK DDPAK MBRB2515LT4G ON Semiconductor D2 D3 D4 D5 D6 5 Red LED Red SMD LED_0805...

Page 38: ...W06035K10JN EA Vishay Dale R43 1 3 3k RES 3 3 k 5 0 1 W 0603 0603 CRCW06033K30JN EA Vishay Dale R49 R54 R56 R57 4 2 00k RES 2 00 k 0 1 0 063 W 0603 0603 CPF0603B2K0E TE Connectivity R53 R55 R58 R61 R8...

Page 39: ...Y1 1 Crystal 4 096MHz 3 3V SMD 7x5mm 7W 4 096MBB T TXC Corporation C9 C23 C24 0 0 1uF CAP CERM 0 1uF 50V 10 X7R 1210 1210 C1210C104K5RACT U Kemet C11 C19 C47 C52 0 1uF CAP CERM 1 F 25 V 10 X7R 0603 06...

Page 40: ...Incorporated Appendix A SBAU274 July 2016 A 1 ADS1282 SP Software GUI Installation 1 Unzip the GUI installer file ADS1282 SP Software GUI Installer zip 2 Invoke the installer executable file as admini...

Page 41: ...oftware GUI Installation 41 SBAU274 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated 4 Read the License Agreement and click the I accept the agreement button and c...

Page 42: ...ADS1282 SP Software GUI Installation www ti com 42 SBAU274 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated 6 Click Next 7 Click Yes to create a desktop icon...

Page 43: ...www ti com ADS1282 SP Software GUI Installation 43 SBAU274 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated 8 Installation commences 9 Click Next...

Page 44: ...re GUI Installation www ti com 44 SBAU274 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated 10 Read the License Agreement and click the I accept the agreement butto...

Page 45: ...com ADS1282 SP Software GUI Installation 45 SBAU274 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated 11 Click Next to install Runtime in default location 12 Click...

Page 46: ...ADS1282 SP Software GUI Installation www ti com 46 SBAU274 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated...

Page 47: ...www ti com ADS1282 SP Software GUI Installation 47 SBAU274 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated 13 Click Finish 14 Click Finish...

Page 48: ...ADS1282 SP Software GUI Installation www ti com 48 SBAU274 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated...

Page 49: ...16 Texas Instruments Incorporated 15 The README file contains important information related to the MSP430 LaunchPad firmware load Links are provided to the instructions for flashing the ADS1282 SP fir...

Page 50: ...ing the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repa...

Page 51: ...transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indic...

Page 52: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Page 53: ...REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE L...

Page 54: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

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