Texas Instruments ADS9218EVM-PDK User Manual Download

Page: 22 / 29

Figure 7-3

shows the connector that connects the ADS9218EVM connector to the TSWDC155EVM. This

connector has digital and power connections.

SDI

SCLK

CSz
SDO

FCLKOUT

DCLKOUT

FX3_I2C_SCL
FX3_I2C_SDA

SPI_EN

PWDNz

SPRW_SUP_3P3

SPRW_SUP_2P5

SPRW_SUP_1P8

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

A25

A26

A27

A28

A29

A30

A31

A32

A33

A34

A35

A36

A37

A38

A39

A40

J27A

ASP-134486-01

B10

B11

B12

B13

B14

B15

B16

B17

B18

B19

B20

B21

B22

B23

B24

B25

B26

B27

B28

B29

B30

B31

B32

B33

B34

B35

B36

B37

B38

B39

B40

J27B

ASP-134486-01

C10

C11

C12

C13

C14

C15

C16

C17

C18

C19

C20

C21

C22

C23

C24

C25

C26

C27

C28

C29

C30

C31

C32

C33

C34

C35

C36

C37

C38

C39

C40

J27C

ASP-134486-01

D10

D11

D12

D13

D14

D15

D16

D17

D18

D19

D20

D21

D22

D23

D24

D25

D26

D27

D28

D29

D30

D31

D32

D33

D34

D35

D36

D37

D38

D39

D40

J27D

ASP-134486-01

E10

E11

E12

E13

E14

E15

E16

E17

E18

E19

E20

E21

E22

E23

E24

E25

E26

E27

E28

E29

E30

E31

E32

E33

E34

E35

E36

E37

E38

E39

E40

J27E

ASP-134486-01

F10

F11

F12

F13

F14

F15

F16

F17

F18

F19

F20

F21

F22

F23

F24

F25

F26

F27

F28

F29

F30

F31

F32

F33

F34

F35

F36

F37

F38

F39

F40

J27F

ASP-134486-01

G10

G11

G12

G13

G14

G15

G16

G17

G18

G19

G20

G21

G22

G23

G24

G25

G26

G27

G28

G29

G30

G31

G32

G33

G34

G35

G36

G37

G38

G39

G40

J27G

ASP-134486-01

H10

H11

H12

H13

H14

H15

H16

H17

H18

H19

H20

H21

H22

H23

H24

H25

H26

H27

H28

H29

H30

H31

H32

H33

H34

H35

H36

H37

H38

H39

H40

J27H

ASP-134486-01

J10

J11

J12

J13

J14

J15

J16

J17

J18

J19

J20

J21

J22

J23

J24

J25

J26

J27

J28

J29

J30

J31

J32

J33

J34

J35

J36

J37

J38

J39

J40

J27I

ASP-134486-01

K10

K11

K12

K13

K14

K15

K16

K17

K18

K19

K20

K21

K22

K23

K24

K25

K26

K27

K28

K29

K30

K31

K32

K33

K34

K35

K36

K37

K38

K39

K40

J27J

ASP-134486-01

SMPL_SYNC

GND

DCLKP
DCLKM

FCLKP
FCLKM

DOUTP_A
DOUTM_A

DOUTP_B
DOUTM_B

RESETz

FPGA_SMPL_CLKP

Figure 7-3. ADS9218EVM Connector to TSWDC155EVM

Bill of Materials, Schematics, and Layout

www.ti.com

ADS9218EVM-PDK Evaluation Module

SBAU409 – SEPTEMBER 2022

Submit Document Feedback

Summary of Contents for ADS9218EVM-PDK

Page 1: ...ed circuit board PCB that facilitates connection to a standard FPGA mezzanine card FMC connecter used in many field programmable gate array FPGA kits The EVM PDK eases the evaluation of the ADS9218 de...

Page 2: ...tic 6 Figure 2 3 Common Mode Amplifier Drive 7 Figure 2 4 Voltage Reference 7 Figure 3 1 FMC Connector Signals Definition 8 Figure 3 2 Clock Connection 9 Figure 4 1 Boost Converter LDO and Input Polar...

Page 3: ...on of the ADS9218 ADC The FMC connecter adapter board facilitates connection to common FPGA kits The TSWDC155EVM controller sold separately requires a separate 5 V 2 A power source the ADS9218EVM requ...

Page 4: ...4 096 V voltage reference onboard ultra low noise low dropout LDO regulators for 5 0 V analog supply and 1 8 V for the digital supply Subminiature version A SMA connections for external clock or clock...

Page 5: ...TM_B 25 DOUTP_A 28 DOUTP_B 26 CS 17 PWDN 22 RESET 21 DCLKIN 31 DCLKM 23 DCLKP 24 FCLKM 29 FCLKP 30 REFIO 39 SCLK 18 SDI 19 SDO 20 SMPL_CLK 32 SPI_EN 16 SYNC 33 Thermal_Pad 41 VCMOUT 5 AGND 2 AGND 9 AG...

Page 6: ...s component selection and can help adjust component values for different optimizations Figure 2 2 shows a schematic of the FDA driver components GND 1 2 3 4 5 J3 GND 1 2 3 4 5 J4 GND GND AINP_A AINM_A...

Page 7: ...35 VCMOUT DNP Figure 2 3 Common Mode Amplifier Drive 2 4 Voltage Reference As shown in Figure 2 4 the REF7040 is a very low drift low noise highly stable 4 096 V reference This reference can externall...

Page 8: ...E11 E11 E12 E12 E13 E13 E14 E14 E15 E15 E16 E16 E17 E17 E18 E18 E19 E19 E20 E20 E21 E21 E22 E22 E23 E23 E24 E24 E25 E25 E26 E26 E27 E27 E28 E28 E29 E29 E30 E30 E31 E31 E32 E32 E33 E33 E34 E34 E35 E35...

Page 9: ...M J5 grounds the negative clock if a single ended clock is applied Figure 3 2 shows the clock connection circuit GND GND 1 2 J5 1 2 3 4 5 J1 GND 1 2 3 4 5 J2 EXT_SMPL_CLKP EXT_SMPL_CLKM 49 9 R4 DNP 1...

Page 10: ...17 In this case U2 an LM66100 device provides reverse polarity protection if the connection is miswired Figure 4 1 shows a schematic for various protection circuits 1 2 J17 GND OUT 5 GND 2 IN 1 EN 3 N...

Page 11: ...the Tools and Software folder of the ADS9218EVM and run the GUI installer to install the EVM GUI software on your computer Accept all the license agreements and choose the destination location projec...

Page 12: ...omputer This process takes a few minutes At completion you can launch a readme text file and the application Figure 5 2 shows these steps Figure 5 2 Installation Process ADS9218EVM Software Installati...

Page 13: ...I as described in Figure 6 2 7 Press the buttons Initialize USB Power Up Program FPGA and Initialize ads98xx on the Config tab to power up and configure the EVM see Figure 6 4 for details 8 Connect a...

Page 14: ...UI from the start menu Figure 6 2 Start the Software GUI EVM Operation www ti com 14 ADS9218EVM PDK Evaluation Module SBAU409 SEPTEMBER 2022 Submit Document Feedback Copyright 2022 Texas Instruments I...

Page 15: ...EVM but can be helpful to configure the EVM more closely to your end application Review the Schematic to understand how these connections are used Clock Source Figure 6 3 Optional Connections www ti c...

Page 16: ...and Program FPGA buttons some status LEDs on the hardware illuminate The power up step takes the longest time approximately 30 seconds After all four buttons are pressed the power on the ADS9218EVM is...

Page 17: ...d THD data Finally select the Hanning type window to eliminate spectral leakage in the FFT result When these changes are made press the Start Capture button to collect time domain and frequency domain...

Page 18: ...RM188C81A106MA7 3D MuRata D1 1 6 V Diode TVS Bi 6 V SMB SMB SMBJ6 0CA Littelfuse D2 1 Green LED Green SMD LED_0805 APT2012LZGCK Kingbright H1 H2 H3 H4 4 Machine Screw Round 4 40 x 1 4 Nylon Philips pa...

Page 19: ...1 300 mA ultra low noise low IQ low dropout LDO linear regulator with high PSRR 5 SOT 23 40 to 125 SOT23 5 TPS7A2050PDBVR Texas Instruments U4 1 Linear Voltage Regulator IC Positive Fixed 1 Output 30...

Page 20: ...AINM_B VCMOUT VCMOUT AINP_A AINM_A 10V 0 1 F C17 GND 5V GND VCMOUT GND 10V 1uF C24 VCM_FDA REFIO 1 2 3 J11 SMPL_CLKP EXT_SMPL_CLKP FPGA_SMPL_CLKP VIN 2 EN 1 OUTF 7 OUTS 6 GND 3 GND 4 GND 5 GND 8 REF7...

Page 21: ...F 16V C4 GND GND AVDD VDD EN 3 IN 1 NC 4 OUT 5 GND 2 TPS7A2018PDBVR U4 SW 1 GND 2 EN 3 FB 4 VOUT 5 VBAT 6 TPS61070DDCR U5 10uH L1 GND 16V 10uF C5 GND 1 96M R2 200k R3 GND GND SPRW_SUP_3P3 LDO_IN 6V D1...

Page 22: ...E34 E35 E35 E36 E36 E37 E37 E38 E38 E39 E39 E40 E40 J27E ASP 134486 01 F1 F1 F2 F2 F3 F3 F4 F4 F5 F5 F6 F6 F7 F7 F8 F8 F9 F9 F10 F10 F11 F11 F12 F12 F13 F13 F14 F14 F15 F15 F16 F16 F17 F17 F18 F18 F19...

Page 23: ...r is shown in red the top overlay in yellow and the bottom layer in blue Figure 7 4 ADS9218EVM Layout www ti com Bill of Materials Schematics and Layout SBAU409 SEPTEMBER 2022 Submit Document Feedback...

Page 24: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 25: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 26: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 27: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 28: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 29: ...change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of thes...

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