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This user's guide describes the characteristics, operation, and use of the ADS1610
16-bit, 10-MSPS high-speed, parallel interface, analog-to-digital converter evaluation
board. A complete circuit description, a schematic diagram, and a bill of materials is
included. Contact the Product Information Center or e-mail dataconvapps@list.ti.com
for questions regarding this EVM.
1
EVM Overview
2
Introduction
3
Digital Interface
4
Power Supplies
5
Using the EVM
6
Related Documentation from Texas Instruments
Appendix A
Appendix B
1
Input Circuitry
2
TSW1100 and ADS1610EVM Setup
3
TSW1100 Screen Shot
4
Test Results With a 100-kHz Input Frequency
5
Test Results With a 250-kHz Input
6
Test Results With a 500-kHz Input
7
Test Results With a 1-MHz Input
8
Test Results With a 2-MHz Input
B-1
Top Layer – Layer 1
B-2
Split Ground Plane – Layer 2
B-3
Split Power Plane – Layer 3
B-4
Split Power Plane – Layer 4
B-5
Split Ground Plane – Layer 5
B-6
Bottom Layer – Layer 6
1
Reference Voltages
2
Jumper Setting
3
Switch Function Control, SW1
4
Digital Jumper
5
Memory Space Address
6
Assignment and Function at J18
7
Assignment and Function at J2
8
Assignment and Function at J10/P10
SLAU180A – May 2006 – Revised August 2006
Submit Documentation Feedback
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Bill of Materials
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Layout and Schematic
List of Figures
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List of Tables
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SLAU180A – May 2006 – Revised August 2006
Contents
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User's Guide
ADS1610EVM
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ADS1610EVM
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Summary of Contents for Texas Instruments ADS1610EVM

  • Page 1 ..................EVM Overview ..................Introduction ..................Digital Interface ..................Power Supplies ..................Using the EVM ..........Related Documentation from Texas Instruments ................Appendix A Bill of Materials ..............Appendix B Layout and Schematic List of Figures ..................Input Circuitry .............
  • Page 2 The onboard input driver is designed using the wide-band, low-distortion, fully differential amplifier (THS4503) from Texas Instruments. The amplifier is configured for a gain of 2. The THS4503 can directly accept differential signals or be used to convert a single-ended input signal to a differential one. The factory-set condition is for a single-ended input converted to fully differential at the output of the THS4503.
  • Page 3 1 and 2, then AVDD1 is selected. When the jumper is placed across pins 2 and 3, the REF02 is selected as the source. The ADS1610EVM leaves the factory with a short across pins 2 and 3 of W1.
  • Page 4 Digital Interface For more information on the reference generation circuitry, see sheet 6 of the ADS1610EVM schematic, at the end of this user’s guide. 2.1.3 Clock Source The ADS1610 uses the external clock signal applied to the CLK input pin as the modulator clock. Input sampling is controlled by this clock signal.
  • Page 5 Factory installed 3.1.3 ADS1610EVM OTR LED When the analog input exceeds the positive full-scale value or goes below negative full-scale value of VREF, the Out of Range (OTR) signal goes HIGH and remain high while the signal is out-of-range. When this condition occurs, LED1 illuminates.
  • Page 6 0xA000000C External Interface The pinout for the ADS1610EVM has been arranged to easily mate with the growing range of interface adapters. The interface board that is currently available is the 5-6K Interface Board (see SLAU104). This board enables any TMS320C5000 DSP platform or TMS320C6000 DSP platform-based DSK with standard expansion connectors to connect to the EVM.
  • Page 7 Out of Range signal OTR_INT J10.15 J10.16 GROUND J10.17 J10.18 GROUND Data Ready or inverted Data DRDY_OUT J10.19 J10.20 GROUND Ready signal Factory-set condition is to short these signals to ground. SLAU180A – May 2006 – Revised August 2006 ADS1610EVM Submit Documentation Feedback...
  • Page 8 The user’s guide for the data capture board (SLAU164) provides detailed information and setup instructions. The ADS1610EVM mates with the TSW1100 board via J2. Two data ports are available on the data capture board; the reference designators are J1 and J2.
  • Page 9 Valpey Fisher oscillator (60 MHz) and the TSW1100 data capture board. The analog input signal is from a HP 33120A ARB and was band-pass filtered before being applied to J4 on the ADS1610EVM. SLAU180A – May 2006 – Revised August 2006...
  • Page 10 Using the EVM Figure 4. Test Results With a 100-kHz Input Frequency Figure 5. Test Results With a 250-kHz Input ADS1610EVM SLAU180A – May 2006 – Revised August 2006 Submit Documentation Feedback...
  • Page 11 At higher input frequencies, SFDR is sensitive to the quality of the modulator clock. Therefore, if using an external clock source, be sure it is a high-quality, low-jitter clock source that is used to drive the modulator clock. SLAU180A – May 2006 – Revised August 2006 ADS1610EVM Submit Documentation Feedback...
  • Page 12 It is vitally important that the reference and power supply pins be well bypassed near the pins of the device. The bill of materials and schematic pages for the ADS1610EVM are in the appendixes at the end of this document.
  • Page 13 Related Documentation from Texas Instruments Related Documentation from Texas Instruments To obtain a copy of any of the following TI documents, call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product Information Center (PIC) at (972) 644-5580. When ordering, identify this booklet by its title and literature number.
  • Page 14 www.ti.com Appendix A Appendix A Bill of Materials The following table contains a complete Bill of Materials for the EVM. The schematic diagram is also provided reference. Contact Product Information Center e-mail dataconvapps@list.ti.com for questions regarding this EVM. Qty Value Reference Footprint Manufacturer...
  • Page 15 Not Installed C222 C223 3216 Not Installed Not Installed C1 C39–C42 3528 Not Installed Not Installed 64-TQFP (PWP) Texas Instruments ADS1610IPAPR 16-Bit, 10MSPS Delta-Sigma Modified analog-to-digital Converter 8-SOP(D) Not Installed Not Installed IC +5V Voltage reference 8-SOIC SO-8 Texas Instruments REG101UA-3.3...
  • Page 16 www.ti.com Appendix A Qty Value Reference Footprint Manufacturer Manufacturer's Part Description Designators Number 8-POS SMT Dip ITT Industries TDA08H0SK1 Switch DIP 8POS Half pitch SMT switch EVQ-PJ Panasonic EVQ-PJU04K Switch LT TOUCH 6x3.5 240GF SMD LED1 LED-1206 Chicago Miniature CMD15-21VRC/TR8 Red LED Lamp Co.
  • Page 17 www.ti.com Appendix B Appendix B Layout and Schematic This appendix contains the EVM layout and schematic. Layout Figure B-1. Top Layer – Layer 1 Figure B-2. Split Ground Plane – Layer 2 SLAU180A – May 2006 – Revised August 2006 Layout and Schematic Submit Documentation Feedback...
  • Page 18 www.ti.com Layout Figure B-3. Split Power Plane – Layer 3 Figure B-4. Split Power Plane – Layer 4 Layout and Schematic SLAU180A – May 2006 – Revised August 2006 Submit Documentation Feedback...
  • Page 19 Schematic Figure B-5. Split Ground Plane – Layer 5 Figure B-6. Bottom Layer – Layer 6 Schematic The ADS1610EVM schematic is appended to this page. SLAU180A – May 2006 – Revised August 2006 Layout and Schematic Submit Documentation Feedback...
  • Page 20 Revision History ECN Number Approved ADS1610.Sch Data bus buffers.Sch Interface.Sch Power.Sch Diff Analog Input.Sch Voltage Reference.Sch 12500 TI Boulevard. Dallas, Texas 75243 Title: ADS1610 Block Diagram Engineer: Joe Purvis DOCUMENTCONTROL # REV: 6455110 Drawn By: Joe Purvis FILE: DATE: SIZE: 18-Aug-2006 SHEET: Block Diagram.sch...
  • Page 21 Revision History ECN Number Approved DVDD_5V C115 DISABLE OSC ENABLE OSC 10uf .001uF 3.3v_A DVDD_5V AGND1 AGND1 (Sh 6) 0.1uF AGND1 AGND1 AGND1 REFP AGND1 REFP (Sh 6) DVDD_3V AGND1 10uf 10uF .1uF 10uf AGND1 AGND1 AGND1 REFM CLK_IN DGND1 (Sh 6) REFM AGND1...
  • Page 22 Revision History ECN Number Approved DVDD_3V (Sh 4) C141 C116 .001uF .1uF 10uF SN74AHC541 TSW1100 DGND1 (Sh 1) (Sh 1) DRDY_OUT DRDY_OUT (Sh 1) (Sh 1) (Sh 1) (Sh 1) (Sh 1) (Sh 1) DGND1 DVDD_3V C117 C142 .001uF .1uF 10uF SN74AHC541 DGND1...
  • Page 23 Revision History DVDD_3V ECN Number Approved U16A HOST_A2 HOST_A2 RP14 U15A SN74AHC1G86 ADDR_VALID* ADDR_VALID* U17A HOST_A3 SN74AHC1G32 HOST_A3 DVDD_3VDVDD_3V SN74AHC1G86 ...1G DIP_SWITCH_8POS DGND1 DGND1 DVDD_3V R147 130K U21A D_RDY* 169K SN74AHC1G04 D_RDY* DRDY_OUT DRDY_OUT C107 0.1uF DGND1 ADS1610_CSB ADS1610_CSB SYNCB SYNCB U22A ADDR_VALID*...
  • Page 24 Revision History ECN Number Approved 787R C237 47pF VINM VINM U12A 12R4 C254 Vout- 374R 100pF C255 56.2R Vocm 100pF AGND1 Vout+ AGND1 AGND1 402R AGND1 THS4503 VINP VINP 12R4 C253 (Note 1) 100pF C238 374R 56.2R 47pF AGND1 AGND1 AGND1 787R (Sh 5)
  • Page 25 Revision History ECN Number Approved 332R AGND1 12.4K AVDD1 332R REFP C227 C146 C167 REFP (Sh 1) +7VA 10uF C222 100R THS4031 7.50K TEMP C221 AGND1 C144 C145 VBG_5V TRIM .1uF AGND1 2.2uF 10uF .1uF 332R AGND1 AGND1 2.15K U10A 332R .1uF AGND1...
  • Page 26 Revision History ECN Number Approved DVDD_3V C211 C131 0.1uF .001uF ADC DIGITAL SUPPLY (+3V) DGND1 DVDD_3V +3.0V AVDD1 C263 C212 C132 AVDD1 AGND1 47uF 10uF 0.1uF .001uF C207 C125 .1uF 0.1uF .001uF DGND1 AGND1 ADC ANALOG SUPPLY (+5V) AVDD1 AVDD2 DVDD_3V C256 C206...
  • Page 27 EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
  • Page 28 TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products...