Related Manuals for Texas Instruments ADS5237 EVM
Summary of Contents for Texas Instruments ADS5237 EVM
- Page 1 ADS5231/32/37 EVM User's Guide November 2007 Wireless Infrastructure - Radio SBAU111B...
- Page 2 SBAU111B – May 2006 – Revised November 2007 Submit Documentation Feedback...
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Page 3: Table Of Contents
Contents ........................Overview ......................Purpose .................... EVM Basic Functions .................... Power Requirements ..............ADS5231/32/37 EVM Operational Procedure ...................... Circuit Description ....................Schematic Diagram ....................Circuit Function ..................EVM Use With the TSW1100 ..................Connecting to the TSW1100 ..............Provide Power to the ADS5231/32/37 EVM ................ - Page 4 List of Figures ........................Top Layer ....................Layer 2, Ground Plane ....................Layer 3, Power Plane #1 ....................Layer 4, Power Plane #2 ....................Layer 5, Ground Plane ..................... Layer 6, Bottom Layer List of Tables ...................... Three-Pin Jumper List ....................
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Page 5: Overview
User's Guide SBAU111B – May 2006 – Revised November 2007 ADS5231/32/37 EVM This preliminary user’s guide gives a general overview of the ADS5231/32/37 evaluation module (EVM), and provides a general description of the features and functions to be considered while using this module. Overview Purpose The ADS5231/32/37 EVM provides a platform for evaluating the ADS5231/32/37 dual, 12-bit,... -
Page 6: Ads5231/32/37 Evm Operational Procedure
www.ti.com Circuit Description ADS5231/32/37 EVM Operational Procedure The ADS5231/32/37 EVM provides a flexible means of evaluating the ADS5231/32/37 in a number of modes of operation. A basic setup procedure that can be used as a board confidence check is as follows: 1. - Page 7 www.ti.com Circuit Description 2.2.1 Analog Inputs The EVM can be configured to provide the ADC with either transformer-coupled or differential amplifier inputs from a single-ended source. The inputs are provided via SMA connectors J15 and J16 for transformer-coupled input, and J1, J2, J7, and J9 for differential amplifier input. To set up for one of these options, the EVM must be configured as follows: 1.
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Page 8: Evm Use With The Tsw1100
2.2.5 Outputs The data outputs from the ADC are buffered using two Texas Instruments SN74AVC16244s. Output data headers J8 and J21 are standard 40-pin headers on a 100-mil grid, and allow easy connection to a logic analyzer or TSW1100. The connector pinout is listed in Table 2. -
Page 9: Provide Power To The Ads5231/32/37 Evm
Use either a wall-mount transformer that has an output rating of 12 VDC and 500 mA or a lab power supply that can supply 12 VDC. Connect the output to J8 and the return to J9. Texas Instruments recommends setting a current limit of 500 mA. Power on the TSW1100. -
Page 10: Pcb Layout
www.ti.com Physical Description PCB Layout The EVM is constructed on a 6-layer, 5.15-inch × 5.05-inch, 0.062-inch thick PCB using FR-4 material. The individual layers are shown in Figure 1 through Figure Figure 1. Top Layer ADS5231/32/37 EVM SBAU111B – May 2006 – Revised November 2007 Submit Documentation Feedback... -
Page 11: Layer 2, Ground Plane
www.ti.com Physical Description Figure 2. Layer 2, Ground Plane SBAU111B – May 2006 – Revised November 2007 ADS5231/32/37 EVM Submit Documentation Feedback... -
Page 12: Layer 3, Power Plane #1
www.ti.com Physical Description Figure 3. Layer 3, Power Plane #1 ADS5231/32/37 EVM SBAU111B – May 2006 – Revised November 2007 Submit Documentation Feedback... -
Page 13: Layer 4, Power Plane #2
www.ti.com Physical Description Figure 4. Layer 4, Power Plane #2 SBAU111B – May 2006 – Revised November 2007 ADS5231/32/37 EVM Submit Documentation Feedback... -
Page 14: Layer 5, Ground Plane
www.ti.com Physical Description Figure 5. Layer 5, Ground Plane ADS5231/32/37 EVM SBAU111B – May 2006 – Revised November 2007 Submit Documentation Feedback... -
Page 15: Layer 6, Bottom Layer
www.ti.com Physical Description Figure 6. Layer 6, Bottom Layer SBAU111B – May 2006 – Revised November 2007 ADS5231/32/37 EVM Submit Documentation Feedback... -
Page 16: Parts List And Schematics
www.ti.com Parts List and Schematics Parts List and Schematics Table 4 lists the parts used in constructing the EVM. The EVM schematics are appended at the end of this section. Table 4. ADS5231/32/37 EVM Parts List Value Part Number Vendor Ref Des Installed CAPACITORS... - Page 17 www.ti.com Parts List and Schematics Table 4. ADS5231/32/37 EVM Parts List (continued) Value Part Number Vendor Ref Des Installed ADS5231, ADS5232, or ADS5237 ADS5231, ADS5232, or ADS5237 THS4503 THS4503ID U2 U9 OPA2227UA OPA2227UA TPS79225 TPS79225 SN74AVC16244 SN74AVC16244DGG TI U7 U10 Screw, machine, PH 4-40 ×...
- Page 18 VDRV .1uF .1uF .1uF .1uF 10uF VDRV REFB REFB (Sh 5) (1-2) INTERNAL REFT REFT (Sh 5) (2-3) EXTERNAL (Sh 2) 56.2K INB_ INA_ (Sh 2) INB_ INA_ (Sh 2) (Sh 2) (Sh 2) AVDD VDRV VDRV (1-2) POWER DOWN (2-3) NORMAL 10uF .1uF...
- Page 19 +VCC 54.9 AINA+ .1uF THS4503 +VCC (Note 1) INA_ 24.9 VOUT- VOCM (Note 1) VOUT+ .01uF 24.9 AINA- SJP1 -VCC (2-3) -VCC .1uF AIN_A INA_ INA_ (Sh 1) 24.9 C107 49.9 27pF (Note 1) (Sh 1) 24.9 ADT1-1WT .01uF +VCC 54.9 AINB+ .1uF...
- Page 20 SN74AVC16244DGG 2OEB 1OEB R102 CA_OUT (Sh 1) DAO1 DAO2 DAO3 DRVDD DAO4 DAO5 DAO6 DAO7 DAO8 11 12 13 14 DAO9 15 16 17 18 19 20 DAO10 21 22 DAO11 23 24 25 26 RA10 27 28 RA11 DAO12 29 30 RA12 31 32...
- Page 21 SN74AVC16244DGG 2OEB 1OEB CB_OUT (Sh 1) DBO1 DBO2 RP10 DBO3 DRVDD DBO4 DBO5 RP11 DBO6 DBO7 DBO8 11 12 13 14 DBO9 15 16 17 18 19 20 DBO10 21 22 RP12 DBO11 23 24 25 26 RB10 27 28 RB11 DBO12 29 30...
- Page 22 Diff Amp Positive Supply (+5.0V) +VCC ADC Analog Supply (+3.3V) +3.3VA-PS AVDD .1uF 47uF 10uF .1uF BLACK .1uF 47uF 10uF BLACK Diff Amp Negative Supply (-5.0V) -VCC .1uF 47uF 10uF (Note 1) ADC Driver Supply (+3.3V) ADC_BUFFER VDRV .1uF .1uF 47uF 10uF BLACK...
- Page 23 4.99K OPA2227UA REFT REFT (Sh 1) 49.9 0.1% (Note 1) 10uF .1uF .1uF .047uF +VCC .1uF (Note 1) +VCC +2.5V .1uF 470pF OPA2227UA TPS79225 2.2uF REFB REFB (Sh 1) 49.9 10uF -VCC 0.1% (Note 1) .1uF BYPASS 10uF .1uF .047uF 470pF .1uF .01uF...
- Page 24 Parts List and Schematics 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.
- Page 25 Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright 2006, Texas Instruments Incorporated EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the AVDD voltage range of –0.3 V to 3.8 V and the...
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