Texas Instruments ADS1235EVM User Manual Download Page 27

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5
4

DNP

BANK2_DIGITAL_BUS.UART2RX
BANK2_DIGITAL_BUS.UART2TX

BANK1_DIGITAL_BUS.I2C1SCL
BANK1_DIGITAL_BUS.I2C1SDA

BANK1_DIGITAL_BUS.SSI3XDAT1_RX
BANK1_DIGITAL_BUS.SSI3XDAT0_TX
BANK1_DIGITAL_BUS.SSI3FSS
BANK1_DIGITAL_BUS.SSI3CLK

BANK2_DIGITAL_BUS.SSI0CLK
BANK2_DIGITAL_BUS.SSI0FSS
BANK2_DIGITAL_BUS.SSI0XDAT0_TX
BANK2_DIGITAL_BUS.SSI0XDAT1_RX

BANK3_DIGITAL_BUS.SSI2XDAT1_RX
BANK3_DIGITAL_BUS.SSI2XDAT0_TX
BANK3_DIGITAL_BUS.SSI2FSS
BANK3_DIGITAL_BUS.SSI2CLK

BANK3_DIGITAL_BUS.SSI2XDAT3
BANK3_DIGITAL_BUS.SSI2XDAT2

ULPI_DIGITAL_BUS.USBRST

USB_DIGITAL_BUS.USB_MUX_SEL
MISC_DIGITAL_BUS.BSL_BUTTON

MISC_DIGITAL_BUS.BUTTON2

MISC_DIGITAL_BUS.BUTTON1

BANK1_DIGITAL_BUS.I2C4SDA

BANK1_DIGITAL_BUS.I2C4SCL

BANK2_DIGITAL_BUS.BANK_ENABLE

BANK2_DIGITAL_BUS.I2C9SCL
BANK2_DIGITAL_BUS.I2C9SDA

BANK3_DIGITAL_BUS.BANK_ENABLE

BANK1_DIGITAL_BUS.BANK_ENABLE

MISC_DIGITAL_BUS.LED1_GREEN

MISC_DIGITAL_BUS.LED2_GREEN

MISC_DIGITAL_BUS.LED3_RED

ULPI_DIGITAL_BUS.USBSTP
ULPI_DIGITAL_BUS.USBCLK
MISC_DIGITAL_BUS.EEPROM.SCL
MISC_DIGITAL_BUS.EEPROM.SDA

UART1RX

UART1TX

BANK3_DIGITAL_BUS.UART7RX
BANK3_DIGITAL_BUS.UART7TX

ULPI_DIGITAL_BUS.USBD5

ULPI_DIGITAL_BUS.USBD4

ULPI_DIGITAL_BUS.USBD3

ULPI_DIGITAL_BUS.USBD2

ULPI_DIGITAL_BUS.USBD1

ULPI_DIGITAL_BUS.USBD0

USB_DIGITAL_BUS.USB_FS_DP
USB_DIGITAL_BUS.USB_FS_DM

ULPI_DIGITAL_BUS.USBD6

ULPI_DIGITAL_BUS.USBD7

ULPI_DIGITAL_BUS.USBDIR

ULPI_DIGITAL_BUS.USBNXT

0.1uF

C59

2.2uF

C57

GND

+3.3V

0.1uF

C54

0.1uF

C53

0.1uF

C51

GND

0.1uF

C52

1uF

C58

GND

0.1uF

C43

R62

+3.3V

3
2

12pF

C45

12pF

C46

6.8pF

C56

6.8pF

C55

10.0k

R60

0.1uF

C44

4.87k

R66

GND

JP1

TIVA RST

DNP

External Controller Select

This jumper is used to hold TIVA in reset
and disable level shifters when using
external microprocessor/microcontroller

+3.3V

RESET

100

R63

1.0M

R61

2.00k

R64

2.2uF

C47

GND

0.1uF

C48

0.1uF

C49

0.1uF

C50

GND

+3.3V

+1.8V

+3.3V

VBAT

VDDIO

VDD18

(Connection to 'Digital_Header' page)

BANK1_DIGITAL_BUS

BANK2_DIGITAL

BANK2_DIGITAL_BUS

BANK3_DIGITAL

BANK3_DIGITAL_BUS

BANK1_DIGITAL

BANK1_DIGITAL_BUS

JTAG_RESET

(Connection to 'USB_Misc page)

ULPI_DIGITAL_BUS

ULPI_DIGITAL

ULPI_DIGITAL_BUS

MISC_DIGITAL_BUS

MISC_DIGITAL

MISC_DIGITAL_BUS

USB_DIGITAL_BUS

USB_DIGITAL

USB_DIGITAL_BUS

PD0/AIN15/C0O/I2C7SCL/SSI2XDAT1/T0CCP0

PD1/AIN14/C1O/I2C7SDA/SSI2XDAT0/T0CCP1

PD2/AIN13/C2O/I2C8SCL/SSI2FSS/T1CCP0

PD3/AIN12/I2C8SDA/SSI2CLK/T1CCP1

PE3/AIN0/U1DTR

PE2/AIN1/U1DCD

PE1/AIN2/U1DSR

PE0/AIN3/U1RTS

PC7/C0-/EPI0S4/U5TX

PC6/C0+/EPI0S5/U5RX

PC5/C1+/EPI0S6/RTCCLK/U7TX

PC4/C1-/EPI0S7/U7RX

PH0/EPI0S0/U0RTS

PH1/EPI0S1/U0CTS

PH2/EPI0S2/U0DCD

PH3/EPI0S3/U0DSR

PA0/CAN0RX/I2C9SCL/T0CCP0/U0RX

PA1/CAN0TX/I2C9SDA/T0CCP1/U0TX

PA2/I2C8SCL/SSI0CLK/T1CCP0/U4RX

PA3/I2C8SDA/SSI0FSS/T1CCP1/U4TX

PA4/I2C7SCL/SSI0XDAT0/T2CCP0/U3RX

PA5/I2C7SDA/SSI0XDAT1/T2CCP1/U3TX

PA6/EPI0S8/I2C6SCL/SSI0XDAT2/T3CCP0/U2RX/USB0EPEN

PA7/EPI0S9/I2C6SDA/SSI0XDAT3/T3CCP1/U2TX/USB0EPEN/U SB0PFLT

PF0/EN0LED0/M0PWM0/SSI3XDAT1/TRD2

PF1/EN0LED2/M0PWM1/SSI3XDAT0/TRD1

PF2/M0PWM2/SSI3FSS/TRD0

PF3/M0PWM3/SSI3CLK/TRCLK

PF4/EN0LED1/M0FAULT0/SSI3XDAT2/TRD3

PG0/EN0PPS/EPI0S11/I2C1SCL/M0PWM4

PG1/EPI0S10/I2C1SDA/M0PWM5

PB2/EPI0S27/I2C0SCL/T5CCP0/USB0STP

PB3/EPI0S28/I2C0SDA/T5CCP1/USB0CLK

PB0/CAN1RX/I2C5SCL/T4CCP0/U1RX/USB0ID

PB1/CAN1TX/I2C5SDA/T4CCP1/U1TX/USB0VBUS

PC3/SWO/TDO

PC2/TDI

PC1/SWDIO/TMS

PC0/SWCLK/TCK

100

PB5/AIN11/I2C5SDA/SSI1CLK/U0RTS

120

PB4/AIN10/I2C5SCL/SSI1FSS/U0CTS

121

PE4/AIN9/SSI1XDAT0/U1RI

123

PE5/AIN8/SSI1XDAT1

124

PD4/AIN7/SSI1XDAT2/T3CCP0/U2RX

125

PD5/AIN6/SSI1XDAT3/T3CCP1/U2TX

126

PD6/AIN5/SSI2XDAT3/T4CCP0/U2RTS/USB0EPEN

127

PD7/AIN4/NMI/SSI2XDAT2/T4CCP1/U2CTS/USB0PFLT

128

PQ0/EPI0S20/SSI3CLK

PQ1/EPI0S21/SSI3FSS

PQ2/EPI0S22/SSI3XDAT0

PK0/AIN16/EPI0S0/U4RX

PK1/AIN17/EPI0S1/U4TX

PK2/AIN18/EPI0S2/U4RTS

PK3/AIN19/EPI0S3/U4CTS

PQ3/EPI0S23/SSI3XDAT1

PK7/EPI0S24/I2C4SDA/M0FAULT2/RTCCLK/U0RI

PK6/EN0LED1/EPI0S25/I2C4SCL/M0FAULT1

PK5/EN0LED2/EPI0S31/I2C3SDA/M0PWM7

PK4/EN0LED0/EPI0S32/I2C3SCL/M0PWM6

PM7/T5CCP1/TMPR0/U0RI

PM6/T5CCP0/TMPR1/U0DSR

PM5/T4CCP1/TMPR2/U0DCD

PM4/T4CCP0/TMPR3/U0CTS

PM3/EPI0S12/T3CCP1

PM2/EPI0S13/T3CCP0

PM1/EPI0S14/T2CCP1

PM0/EPI0S15/T2CCP0

PL0/EPI0S16/I2C2SDA/M0FAULT3/USB0D0

PL1/EPI0S17/I2C2SCL/PHA0/USB0D1

PL2/C0O/EPI0S18/PHB0/USB0D2

PL3/C1O/EPI0S19/IDX0/USB0D3

PL4/EPI0S26/T0CCP0/USB0D4

PL5/EPI0S33/T0CCP1/USB0D5

PL7/T1CCP1/USB0DM

PL6/T1CCP0/USB0DP

PQ4/DIVSCLK/U1RX

102

PP2/EPI0S29/U0DTR/USB0NXT

103

PP3/EPI0S30/RTCCLK/U0DCD/U1CTS/USB0DIR

104

PP4/U0DSR/U3RTS/USB0D7

105

PP5/I2C2SCL/U3CTS/USB0D6

106

PN0/U1RTS

107

PN1/U1CTS

108

PN2/EPI0S29/U1DCD/U2RTS

109

PN3/EPI0S30/U1DSR/U2CTS

110

PN4/EPI0S34/I2C2SDA/U1DTR/U3RTS

111

PN5/EPI0S35/I2C2SCL/U1RI/U3CTS

112

PJ0/EN0PPS/U3RX

116

PJ1/U3TX

117

PP0/C2+/SSI3XDAT2/U6RX

118

PP1/C2-/SSI3XDAT3/U6TX

119

TM4C1294NCPDTI3R

U9A

WAKE

HIB

XOSC0

XOSC1

RST

OSC0

OSC1

EN0RXIN

EN0RXIP

EN0TXON

EN0TXOP

VREFA+

RBIAS

TM4C1294NCPDTI3R

U9B

VDD

VDDA

GNDA

VDD

GND

VDD

GND

VDD

GND

VBAT

VDD

GND

VDDC

VDD

101

VDD

113

GND

114

VDDC

115

VDD

122

TM4C1294NCPDTI3R

U9C

R65

www.ti.com

EVM Bill of Materials, PCB Layouts, and Schematics

SBAU293 – March 2018

Submit Documentation Feedback

ADS1261 and ADS1235 Evaluation Module

ADVANCE INFORMATION

Figure 18. ADS1261EVM Processor Main Schematic

Summary of Contents for ADS1235EVM

Page 1: ...o includes a software application that runs on a PC allowing for register manipulation and data collection from the ADC The ADS1261 and ADS1235 EVM kit include the ADS12xx device along with a USB micr...

Page 2: ...uts 20 5 3 Schematic 22 List of Figures 1 Default Configurations for ADS1261 and ADS1235 EVM 4 2 Input Terminal Blocks 7 3 Delta Sigma Evaluation Engine Installation Instructions 11 4 Device Package I...

Page 3: ...File About option from within the GUI then click on the Software user guide icon 1 4 Supported Functionality 1 4 1 Hardware Functionality The EVM features the following hardware capabilities 5 V unip...

Page 4: ...ition Function S1 Right Unipolar analog supply AVDD 5 V AVSS 0 V Figure 1 Default Configurations for ADS1261 and ADS1235 EVM 2 2 Powering the EVM The EVM is powered through the USB interface with the...

Page 5: ...to measure the DVDD supply current by measuring the voltage drop across this resistor or by removing the resistor and connecting a dc current meter between the D and D test points 2 3 Software Install...

Page 6: ...m USB power default using R94 as the short 2 3 shorted Digital supply U19 powered from external supply source Open No digital system power provided JP4 5 V supply source Installed ON 5 V supply powere...

Page 7: ...ides the connection information and details for all of the connectors and test points utilized on the EVM 3 2 1 Analog Input Terminal Blocks Analog input to the EVM can be connected at the terminal bl...

Page 8: ...ce output REFOUT J4 1 GND DGND DGND 2 AVSS AVSS AVSS 3 2 2 External Clock By default a clock is supplied by the internal oscillator of the ADC when the CLKIN pin is pulled low However the EVM also pro...

Page 9: ...24 23 PA5 SSI0XDAT1 ADC GPIOs ADC_START 22 21 PA6 ADC_nRESET 20 19 PA7 Bank1 level shifter voltage DVDD 18 17 LVDD3 Unused 3 2 4 Test Points The test points listed in Table 6 may be used to probe onbo...

Page 10: ...seful for current measurement DVDD D Probe only Digital supply of the ADC useful for current measurement U3 17 D Probe only 5 V supply 5V Probe only 3 3 V supply 3 3V Probe only 2 5 V supply 2 5V Prob...

Page 11: ...tware Details 4 1 Installing the Software 4 1 1 Delta Sigma ADC EvaluaTIon Software Download the Delta Sigma ADC EvaluaTIon Software installer from the DELTASIGMAEVAL GUI page and save to a known fold...

Page 12: ...35 EVM Device Package Download the ADS1261 Device Package installer from the ADS1261EVM tool page for the ADS1261EVM or the ADS1235 Device Package installer from the ADS1235EVM tool page for the ADS12...

Page 13: ...mands The EVM commands are given in Table 7 These commands are available for use within the Scripts and Console tabs of the Delta Sigma ADC EvaluaTIon software Many of these commands are SPI commands...

Page 14: ...ADDRESS DATA Issues a write register device command to the ADC via SPI where ADDRESS is the starting register address in hex and DATA is the value to write to the register in hex without the 0x prefi...

Page 15: ...Electro Mechanics C13 C35 C36 3 2 2uF CAP CERM 2 2 uF 10 V 10 X7R 0603 0603 LMK107B7225KA T Taiyo Yuden C14 1 220pF CAP CERM 220 pF 50 V 5 C0G NP0 0603 0603 06035A221JAT2A AVX C22 C24 C25 C27 C31 C37...

Page 16: ...07100KL Yageo America R33 R38 R82 3 0 1 RES 0 1 1 0 1 W 0603 0603 ERJ L03KF10CV Panasonic R39 R40 R41 R42 R43 R44 R45 R46 R47 9 47 RES 47 5 0 1 W AEC Q200 Grade 0 0603 0603 CRCW060347R0JNEA Vishay Da...

Page 17: ...40 to 85 degC 10 Pin UQFN RSE Green RoHS no Sb Br RSE0010A TS3USB221ERSER Texas Instruments U12 1 USB ESD Solution with Power Clamp 4 Channels 40 to 85 degC 6 pin SON DRY Green RoHS no Sb Br DRY0006A...

Page 18: ...Technology J10 0 Connector DC Jack 2 1X5 5 mm TH POWER JACK 14 4x11x9mm PJ 102A CUI Inc JP1 JP2 JP5 0 Header 100mil 2x1 Gold TH 2x1 Header TSW 102 07 G S Samtec JP3 JP4 0 Header 100mil 3x1 Gold SMT Sa...

Page 19: ...it Bidirectional Voltage Level Shifter For Open Drain And Push Pull Application RGY0020A VQFN 20 RGY0020A TXS0108ERGYR Texas Instruments U14 0 256K I2C CMOS Serial EEPROM TSSOP 8 TSSOP 8 24AA256 I ST...

Page 20: ...pyright 2018 Texas Instruments Incorporated ADS1261 and ADS1235 Evaluation Module ADVANCE INFORMATION 5 2 PCB Layouts Figure 7 through Figure 12 illustrate the PCB layout The same PCB is used for both...

Page 21: ...matics 21 SBAU293 March 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated ADS1261 and ADS1235 Evaluation Module ADVANCE INFORMATION Figure 10 Power Layer Negative Figure...

Page 22: ...er Fault LED Bipolar Power Supplies 3 3V 5V Analog Headers Power Jack Not Installed Level shifters TXS0108E Analog side Digital side SPI GPIO Power Management 3 3V 5V 1 8V 2 5V JTAG Header Not Install...

Page 23: ...sitive bridge excitation without requiring the GPIO control signals ACX1 ACX1 ACX2 ACX2 2 2uF C13 220pF C14 100k R21 100k R22 100k R8 DNP REF6225IDGKR VIN 1 EN 2 SS 3 FILT 4 OUT_S 5 OUT_F 6 GND_F 7 GN...

Page 24: ...uF C25 0 1uF C22 AVSS AVSS AVSS DVDD AVDD DVDD A DNP A DNP D DNP D DNP 0 1 R33 0 1 R38 511k R55 536k R56 604k R53 47 R47 Pull down enables internal oscillator when no external clock source is provided...

Page 25: ...SI3CLK SSI3XDAT0_TX SSI3XDAT1_RX SSI3FSS I2C1SDA I2C1SCL BANK1_DIGITAL GND 0 1uF C40 0 1uF C39 GND GND BANK2_DIGITAL 3 3V A1 1 VCCA 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 OE 10 GND 11 B8 12 B7 13 B6 14...

Page 26: ..._DIGITAL_BUS BUTTON1 BSL_BUTTON BUTTON2 LED1_GREEN LED2_GREEN LED3_RED EEPROM SCL EEPROM SDA MISC_DIGITAL MISC_DIGITAL Connection to TM4C_Main page MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS M...

Page 27: ...ISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_BUS MISC_DIGITAL_B...

Page 28: ...I DNI DNI DNI INSTALLED DNI INSTALLED INSTALLED INSTALLED DNI DNI DNI DNI INSTALLED INSTALLED INSTALLED install 0 Ohm jumper or short pads together 4 7uF C68 EXT_5V Jumper Position DVDD JP3 AVDD JP10...

Page 29: ...GND GND GND 10uF C101 DNP 10uF C91 DNP 0 1uF C102 DNP 0 1uF C92 DNP 12V 50mA 12V 50mA Replacement Fuse Littlefuse P N 0453002 Fast Acting Littlefuse P N 0454002 Slow acting Installed 1 2 J9 DNP GND E...

Page 30: ...set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that...

Page 31: ...the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain great...

Page 32: ...t the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the...

Page 33: ...OST OF 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...

Page 34: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

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