Texas Instruments ADS1605 User Manual Download Page 47

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DOCUMENTCONTROL #

VIN

GND

OUT

TRIM

TEMP

N/C

REF02

2.2uF

C54

1uF

C57

0.1uF

C56

0.01uF

C12

0.1uF

4.12K

10K

RV1

RV3
5K

9.09K

3.01K

R18

4.12K

R6
392

R8
392

C62

1uF

C58

.01uF

C20

1uF

392

+6V

-6V

1uF

C29

10uF

R21
392

R9
392

.001uF

C24

1uF

R10
392

+6V

-6V

R23
392

R29
392

VREFP

VREFN

C60

10uF

U3B

OPA2822U

U2B

OPA2822U

R24

12.1K

R19

3.01K

R25

392

R30

392

TO ANALOG INPUT CIRCUIT

VMID

U3A

OPA2822U

U2A

OPA2822U

RV2
10K

VCM

+12v

C61

1uF

C59

10uF

C34

1uF

C30

10uF

C32

1uF

C27

10uF

1uF

C16

.001uF

R26
392

.01uF

C28

.01uF

C22

.01uF

.001uF

C17

.001uF

R27

392

C55

10uF

C31

10uF

R20

10K

VREF

AGND

C23

.01uF

C21

.01uF

C10
.01uF

ADS1605 / 06 Voltage Reference

Joe Purvis

6455110

Summary of Contents for ADS1605

Page 1: ...April 2004 Data Acquistion User s Guide SLAU122A...

Page 2: ...ute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual pro...

Page 3: ...handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s r...

Page 4: ...If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than xxx C The EVM is d...

Page 5: ...This Manual This document contains the following chapters Chapter 1 Analog Interface Chapter 2 Digital Interface Chapter 3 Power Distribution Chapter 4 Getting the most from your EVM Chapter 5 EVM BOM...

Page 6: ...6 SBAS274 REF02 SBVS003A OPA2822 SBOS188A FCC Warning This equipment is intended for use in a laboratory test environment only It gen erates uses and can radiate radio frequency energy and has not bee...

Page 7: ...d ADS1606 2 3 2 1 4 Out of Range Indication 2 3 2 1 5 Interrupt Source 2 3 2 1 6 Base Address and Chip Select 2 3 2 2 External Interface 2 4 2 3 Data Connector Pinout 2 5 2 3 1 Control Connector Pinou...

Page 8: ...dows 4 7 4 7 CCS Window With Graph 4 8 5 1 Top Tracking Layer 5 10 5 2 Internal Power and Ground Layers 5 11 5 3 Bottom Tracking Layer 5 12 1 1 Analog Interface 1 3 1 2 Selection Between Internal Exte...

Page 9: ...1 1 EVM Overview Topic Page 1 1 Features 1 2 1 2 Introduction 1 2 1 3 Analog Interface 1 2 1 4 Analog Input 1 3 1 5 External Reference 1 3 1 6 Modulator Clock 1 4 Chapter 1...

Page 10: ...than 0 0025 dB The evaluation module EVM is a stand alone full featured system that offers data sheet performance Additionally the EVM conforms to a common electrical and mechanical pinout for analog...

Page 11: ...s available to deliver the signal to the ADC Single ended via SMA connector at J6 Single ended via socket strip header at J1 P1 connector Differentially via socket strip header at J1 P1 connector The...

Page 12: ...Adjusts main 5 V RV1 Adjusts REF voltage RV3 Adjusts REF voltage Figure 1 3 shows a block diagram of the configuration Figure 1 3 Block Diagram Gain 1 Gain 1 Gain 1 Gain 1 5 V Reference 8 V 40 V REF V...

Page 13: ...tal Interface The chapter describes the EVM digital interface consisting of the following subsections Topic Page 2 1 Board Level Control 2 2 2 2 External Interface 2 4 2 3 Data Connector Pinout 2 5 Ch...

Page 14: ...See Table 2 2 2 FIFO 1 1 FIFO 2 Table 2 2 FIFO Settings FIFO 2 FIFO 1 FIFO 0 FIFO Buffer Level 0 0 0 0 0 0 1 2 0 1 0 4 0 1 1 6 1 0 0 8 1 0 1 10 1 1 0 12 1 1 1 14 More information on the operation and...

Page 15: ...er rising edge interrupts or falling edge interrupts 2 1 6 Base Address and Chip Select The EVM can be mapped into a memory location by setting a base address There are four possible base addresses fo...

Page 16: ...that is available at this time is the 5 6K interface card http focus ti com lit ug slau104 slau104 pdf This card enables any TMS320C5000 DSP Platform or TMS320C6000 DSP Platform based DSK with standar...

Page 17: ...24 IO Ground 25 D12 26 IO Ground 27 D13 28 IO Ground 29 D14 30 IO Ground 31 D15 32 IO Ground 33 Not Connected 34 IO Ground 35 Not Connected 36 IO Ground 37 Not Connected 38 IO Ground 39 Not Connected...

Page 18: ...2 6...

Page 19: ...he simplest way to provide these voltages is to use the power connector P4 J4 and derive the voltages elsewhere preferably via a linear supply The pinout for this connector is shown below The simplest...

Page 20: ...ge Can be Derived Directly From The DSK Check The Jumper Settings Apply 5 V for the Analog Section of the ADC Here Apply 6 V or 5 V for the Analog Front End Here Alternatively Supply Power via J6 and...

Page 21: ...3 3 Power Distribution 8 40 V for external voltage reference Figure 3 2 Using the EVM with an External Reference Voltage...

Page 22: ...3 4...

Page 23: ...4 1 Getting the Most From Your EVM In general there are two hardware directions that the user can take with the EVM Topic Page 4 1 Stand Alone EVM 4 2 4 2 DSP Interface 4 2 Chapter 4...

Page 24: ...the hardware is assembled as shown in Figure 2 1 The example program uses the driver files created with the Data Converter Plug in of Code Composer Studio which can be downloaded from the TI s websit...

Page 25: ...cribed in the chapters 1 and 2 of this User s Guide Additionally set the jumper W11 to position 2 3 to configure the interrupt for rising edges As described in Chapter 2 paragraph 2 1 5 Apply power to...

Page 26: ...CCS Project Menu Figure 4 3 CCS Project Open Dialog Once the project is open expand the project tree by clicking on the in front of it and expand the source files as well The project window should loo...

Page 27: ...6713 6416 Now open the main c source file by double clicking on the file name in the project view and scroll down to the line where the read command for the ADS1605 is issued dc_rblock function This l...

Page 28: ...display buffer which is graphed In the case of the sample program set it to r_buffer J Acquisition Buffer Size This is the size of the acquisition buffer you are using on your target board In the case...

Page 29: ...ates the values for the time axis The axis is labeled from 0 to Display Data Size 1 Sampling Rate For the sample program set it to 5000000 5 MHz More information on the different settings can be found...

Page 30: ...DSP Interface 4 8 Figure 4 7 CCS Window With Graph...

Page 31: ...and Schematics This chapter contains the bill of material EVM layouts and the schematics for the ADS1605 06 Topic Page 5 1 EVM Bill of Materials 5 2 5 2 ADS16005 06 EVM Layout Details 5 10 5 3 ADS160...

Page 32: ...CJ 1VB1E104K 32 0 1 F C12 C14 C15 C38 Capacitor 0 1 F 25V ceramic X7R 0603 Panasonic ECJ 1VB1E104K C15 C38 C44 C46 ceramic X7R 0603 C44 C46 C49 C50 C49 C50 C57 C65 C57 C65 C67 C70 C73 C75 C67 C70 C73...

Page 33: ...esistor 9 09K 0 1 25PPM KOA Speer RN732ALTD9091B25 1 10 K RP6 Resnet 16 POS ISOLAT 10 k SOIC Bourns 2NBS16 TJ1 103 7 10 K R4 R20 R36 R43 R45 R48 R49 RES 10 k 1 8W 5 0805 SMD Panasonic ERJ 6GEYJ103V 1...

Page 34: ...nasonic ERJ 6ENF1693V 4 220 H L1 L2 L3 L4 Inductor 220 H 10 SA Type SMD Panasonic ECG ELJ SA221KF 1 390 pF C36 Capacitor ceramic 390 pF 50V NP0 0805 BC Components 0805N391J500NT 17 392 R R6 R7 R8 R9 R...

Page 35: ...pos or gate SOT23 5 Texas Instruments SN74AHC1G32DBVR 2 U7 U9 IC SGL 2 IN ex or gate SOT23 5 Texas Instruments SN74AHC1G86DBVR 1 U11 IC quad 2 IN pos or gate 14 TSSOP Texas Instruments SN74AHC32PWR 1...

Page 36: ...c X7R 0603 C44 C46 C49 C50 C49 C50 C57 C65 C57 C65 C67 C70 C73 C75 C67 C70 C73 C75 C76 C78 C73 C75 C76 C78 C80 C81 C76 C78 C80 C81 C89 C93 C80 C81 C89 C93 C95 C97 C89 C93 C95 C97 C98 C100 C98 C100 C10...

Page 37: ...43 R45 R48 R49 RES 10 k 1 8W 5 0805 SMD Panasonic ERJ 6GEYJ103V 1 10 K RV2 Trimpot 10 k 4 MM top adj SMD Bourns Inc 3224W 1 103E 9 10 F C11 C18 C27 C30 C59 C60 C71 C72 C84 Capacitor 10 F 10 V ceramic...

Page 38: ...05 BC Components 0805N391J500NT 17 392 R R6 R7 R8 R9 R10 R12 R13 R17 R21 R22 R23 R25 R26 R27 R28 R29 R30 0805 Resistor 0 1 tolerance 10 PPM 392 R Holsworthy 279 RN73CA 392R 1 ADS1606 PWB 6455109 1 U6...

Page 39: ...ex or gate SOT23 5 Texas Instruments SN74AHC1G86DBVR 1 U11 IC quad 2 IN pos or gate 14 TSSOP Texas Instruments SN74AHC32PWR 1 U8 IC dual edg trg dtyp f f 14 TSSOP Texas Instruments SN74AHC74PWR 3 U12...

Page 40: ...ADS1605 06 EVM Layout Details 5 10 5 2 ADS1605 06 EVM Layout Details Figure 5 1 Top Tracking Layer...

Page 41: ...ADS1605 06 EVM Layout Details 5 11 EVM BOM ADS1605 06 EVM Layouts and Schematics Figure 5 2 Internal Power and Ground Layers...

Page 42: ...ADS1605 06 EVM Layout Details 5 12 Figure 5 3 Bottom Tracking Layer...

Page 43: ...ADS1605 06 EVM Schematics 5 13 EVM BOM ADS1605 06 EVM Layouts and Schematics 5 3 ADS1605 06 EVM Schematics The schematics shown on the following pages...

Page 44: ...ID VREFN VREFP Voltage Reference D09 D08 D11 D10 D12 D13 D15 D14 B00 B01 B02 B03 B04 B05 B06 B07 B08 B09 B10 B11 B12 B13 B14 B15 B_OTR B_DRDY OTR DRDY D00 D01 D02 D03 D04 D05 D06 D07 Data bus buffers...

Page 45: ...6 5 7 U4B OPA2822U C13 22pF C15 0 1uF 6V C64 01uF 6V C14 0 1uF C19 22pF AINP AINN C36 390pF R38 1K R39 1K C68 22uF C65 0 1uF VCM R31 49 9R R32 49 9R C35 100pF C33 100pF AIN R12 392 R17 392 R22 392 R1...

Page 46: ...45 1uF OTR DRDY OTR DRDY C46 0 1uF C47 1uF C49 0 1uF C51 1uF C50 0 1uF C52 1uF C72 10uF C76 0 1uF C84 10uF C73 0 1uF C67 0 1uF C75 0 1uF C38 0 1uF L4 220uH R44 2 2R C98 0 1uF C26 22uF C82 22uF C83 22u...

Page 47: ...2 R9 392 C9 001uF C24 1uF R10 392 6V 6V R23 392 R29 392 VREFP VREFN C60 10uF 6 5 7 U3B OPA2822U 6 5 7 U2B OPA2822U R24 12 1K R19 3 01K R25 392 R30 392 TO ANALOG INPUT CIRCUIT VMID 3 2 1 8 4 U3A OPA282...

Page 48: ...8 OE2 19 VCC 20 U12 SN74AHC541 OE1 1 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 GND 10 Y8 11 Y7 12 Y6 13 Y5 14 Y4 15 Y3 16 Y2 17 Y1 18 OE2 19 VCC 20 U13 SN74AHC541 OE1 1 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7...

Page 49: ...13 13 15 15 16 16 14 14 12 12 10 10 8 8 6 6 4 4 2 2 SW1 DIP_SWITCH_8POS HOST_CSa ADDR_VALID ADDR_VALID GND 3 Vcc 5 U10B SN74AHC1G04 C97 0 1uF 9 10 8 A B Y U11C SN74AHC32 4 5 6 A B Y U11B SN74AHC32 12...

Page 50: ...C92 47uF IOVDD C48 4 7uF C99 1uF C96 47uF IO_GND C40 0 1uF C69 47uF C63 47uF C70 0 1uF 6V 6V VA L2 220uH L1 220uH W8 5VD VA 1 2 3 4 5 6 7 8 9 10 J4 P4 VA VA 5VD IO_GND1 R35 0R DGND IO_GND MOD_AGND R40...

Page 51: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments ADS1606EVM ADS1605EVM...

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