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Related Manuals for Texas Instruments ADS528 Series
Summary of Contents for Texas Instruments ADS528 Series
- Page 1 ADS528x EVM User's Guide User's Guide January 2008 SLAU205...
- Page 2 SLAU205 – January 2008 Submit Documentation Feedback...
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Page 3: Table Of Contents
Contents ........................Overview ......................Purpose .................... EVM Basic Functions ................ ADS528x EVM Quick Start Procedure ...................... Circuit Description ....................Schematic Diagram ....................Circuit Function ..................TI ADC SPI Control Interface ..............Installing the ADC SPI Control Software ..............Using the TI ADC SPI Interface Software ...................... - Page 4 List of Figures ....................... ADS5281 EVM ................... TI ADC SPC Interface Screen ......................Top Silkscreen ....................... Ground Plane ........................ Power Plane ......................Bottom Silkscreen ..................EVM Schematics (Sheet 1 of 5) ..................EVM Schematics (Sheet 2 of 5) ..................EVM Schematics (Sheet 3 of 5) ..................
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Page 5: Overview
User's Guide SLAU205 – January 2008 Overview This preliminary user's guide gives a general overview of the ADS5281/82/87 (ADS528X) QFN evaluation module (EVM) and provides a general description of the features and functions to be considered while using this module. The EVM is pictured in Figure Purpose The EVM provides a platform for evaluating the eight-channel ADS528X analog-to-digital converter (ADC) -
Page 6: Evm Basic Functions
www.ti.com Overview Figure 1. ADS5281 EVM EVM Basic Functions Eight analog inputs to the ADC are provided via external SMA connectors. The EVM provides an external SMA connector for input of the ADC clock. The ADC can be clocked using either a single-ended or differential clock. -
Page 7: Ads528X Evm Quick Start Procedure
www.ti.com Overview ADS528x EVM Quick Start Procedure The ADS528x EVM provides a flexible means of evaluating the ADS528x 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 8: Circuit Description
www.ti.com Circuit Description Circuit Description Schematic Diagram The schematic diagram for the EVM is in Section 6.3. Circuit Function The following sections describe the function of individual circuits. Refer to the relevant data sheet for device operating characteristics. 2.2.1 Power Power is supplied to the EVM via banana jack sockets. - Page 9 Full documentation on the TI ADSDeSer-50EVM deserializer is found in the ADSDeSer-50EVM Evaluation Module User's Guide (SBAU091) and Connecting Xilinx FPGAs to Texas Instruments ADS527x Series ADCs, Xilinx™ application report XAPP774. The VHDL deserializer source code can be found on the Xilinx Web site.
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Page 10: Ti Adc Spi Control Interface
www.ti.com TI ADC SPI Control Interface TI ADC SPI Control Interface This section describes the software designed to communicate with the ADC three-wire SPI interface. The information is to be used in conjunction with the device data sheet, which explains the valid registers of the device. - Page 11 www.ti.com TI ADC SPI Control Interface 3.2.1 SPI Register Write The most basic mode of operation allows full control of writing to individual register addresses. In the top left corner of the interface screen (Figure 2), select the ADS528X ADC from the ADC SPI Protocol drop-down list.
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Page 12: Ads528X Frequently Used Registers
www.ti.com TI ADC SPI Control Interface Table 3. ADS528X Frequently Used Registers Default Value Alternate Value Description ADS528X Reset Issues a software reset and also sends the initialization routine outlined in the data sheet. Furthermore, the clock is set to differential, which matches the default EVM configuration. -
Page 13: Adc Evaluation
www.ti.com ADC Evaluation ADC Evaluation This section describes how to set up a typical ADC evaluation system that is similar to what TI uses to perform testing for data-sheet generation. Consequently, the information in this section is generic in nature and is applicable to all high-speed, high-resolution ADC evaluations. -
Page 14: Coherent Input Frequency Selection
www.ti.com ADC Evaluation Coherent Input Frequency Selection Typical ADC analysis requires users to collect the resulting time-domain data and perform a Fourier transform to analyze the data in the frequency domain. A stipulation of the Fourier transform is that the signal must be continuous-time;... -
Page 15: Errata
www.ti.com Errata Errata This section describes the known issues with Rev B of the EVM. Silkscreen Errata The JP2 silkscreen incorrectly identifies the internal (INT) and external (EXT) reference selection. The ADC internal reference is selected by shorting pins 1–2 on JP2, which corresponds to the silkscreen designators of HI or EXT. -
Page 16: Physical Description
www.ti.com Physical Description Physical Description This section describes the physical characteristics and PCB layout of the EVM. PCB Layout The EVM is constructed on a 4-layer, 0.062-inch (1.58-mm) thick PCB using FR-4 material. The individual layers are shown in Figure 3 through Figure 6. -
Page 17: Ground Plane
www.ti.com Physical Description K002 Figure 4. Ground Plane SLAU205 – January 2008 Submit Documentation Feedback... -
Page 18: Power Plane
www.ti.com Physical Description K003 Figure 5. Power Plane SLAU205 – January 2008 Submit Documentation Feedback... -
Page 19: Bottom Silkscreen
www.ti.com Physical Description K004 Figure 6. Bottom Silkscreen SLAU205 – January 2008 Submit Documentation Feedback... -
Page 20: Bill Of Materials
www.ti.com Physical Description Bill of Materials Table 4. Bill of Materials Reference Not Installed Part Footprint Part Number Manufacturer Tolerance 33 µF C1, C3, C23, TANT_B B45196H1336K2 Kemet 1 µF C2, C4, C24, ECJ-1VB0J105K Panasonic 22 µF C7, C11 TANT_A B45196H1226K1 Kemet 0.1 µF C8, C9, C10,... - Page 21 www.ti.com Physical Description Table 4. Bill of Materials (continued) Reference Not Installed Part Footprint Part Number Manufacturer Tolerance 68 Ω at 100 MHz 603 L1, L2, L3, L7 MI0603J680R-10 Steward 1 kΩ at 100 MHZ SMD_0805 BLM21AG102SN Murata 2 Ω R1, R2 ERJ- Panasonic...
- Page 22 www.ti.com Physical Description Table 4. Bill of Materials (continued) Reference Not Installed Part Footprint Part Number Manufacturer Tolerance 93C66B TSSOP8 93C66B-I/ST Microchip FT245BM PQFN32 FT245BM Future Technology Devices TPS73201- DBV5 TPS73218DBVT SOT23 TPS77533D SOIC8 TPS77533D 6.0000 MHz ECS-60-32- 5PDN-TR Screw, machine, PMS 440 0038 Building PCB legs...
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Page 23: Pcb Schematics
www.ti.com Physical Description PCB Schematics Figure 7. EVM Schematics (Sheet 1 of 5) SLAU205 – January 2008 Submit Documentation Feedback... -
Page 24: Evm Schematics (Sheet 2 Of 5)
www.ti.com Physical Description Figure 8. EVM Schematics (Sheet 2 of 5) SLAU205 – January 2008 Submit Documentation Feedback... -
Page 25: Evm Schematics (Sheet 3 Of 5)
www.ti.com Physical Description Figure 9. EVM Schematics (Sheet 3 of 5) SLAU205 – January 2008 Submit Documentation Feedback... -
Page 26: Evm Schematics (Sheet 4 Of 5)
www.ti.com Physical Description Figure 10. EVM Schematics (Sheet 4 of 5) SLAU205 – January 2008 Submit Documentation Feedback... -
Page 27: Evm Schematics (Sheet 5 Of 5)
www.ti.com Physical Description Figure 11. EVM Schematics (Sheet 5 of 5) SLAU205 – January 2008 Submit Documentation Feedback... - Page 28 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.
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Page 29: Important Notices
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. - Page 30 Компания «ЭлектроПласт» предлагает заключение долгосрочных отношений при поставках импортных электронных компонентов на взаимовыгодных условиях! Наши преимущества: Оперативные поставки широкого спектра электронных компонентов отечественного и импортного производства напрямую от производителей и с крупнейших мировых складов; Поставка более 17-ти миллионов наименований электронных компонентов; ...
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