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SLAU336 - March 2011
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© 2011, Texas Instruments Incorporated
DAC3484/DAC3482 EVM
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User's Guide
SLAU336 - March 2011
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DAC3484/DAC3482 EVM
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Table of Contents
Related Manuals for Texas Instruments DAC3482
Summary of Contents for Texas Instruments DAC3482
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Page 1: Table Of Contents
DAC3484 Transformer Coupled Output at 60MHz IF DAC3484 Transformer Coupled Output at 30MHz IF Locations of the DAC3482 to TRF3703-15 Interface Jumpers TSW3100 GUI Configuration for Generating a WCDMA Signal for DAC3482 SLAU336 – March 2011 Submit Documentation Feedback DAC3484/DAC3482 EVM... -
Page 2: Slau336 – March
This document is intended to serve as a basic user’s guide for the DAC3484/2 EVM Revision D. The EVM provides a basic platform to evaluate the DAC3484 and DAC3482, which are a family of 1.25GSPS, up to 16x interpolation, 16-bit high speed digital-to-analog converters. The DAC3484 is a quad-channel DAC, and the DAC3482 is a dual-channel DAC. -
Page 3: Software Control
The GUI tabs provide more convenient and simplified interface to the most used registers of each device. Each device, including the DAC3484, DAC3482, and DAC34H84, has its own custom control interface. Select the device option from the top left-hand corner. The DAC3484 EVM Software Control is described in this section. -
Page 4: Pll Configuration
Data Routing: provides flexible routing of the A, B, C, and D sample input data to the appropriate digital path. Note: the DAC3482 does not support this mode • SIF Control: provides control of the Serial Interface (3-wires or 4-wires) and Serial Interface Sync (SIF Sync). -
Page 5: Digital Block Options
O SYNC: sync from the external LVDS SYNC signal. O SIF SYNC: sync from SIF Sync. Uncheck and check the SIF Sync button for sync event. SLAU336 – March 2011 Submit Documentation Feedback Figure 4. Digital Block Options © 2011, Texas Instruments Incorporated Software Control DAC3484/DAC3482 EVM... -
Page 6: Output Control Options
● DAC Sel = Enable inner outputs of Ch. B and Ch. C as the DAC3482 output. ● DAC Sel = Enable outer outputs of Ch. A and Ch. D as the DAC3482 output. Outer channels are grounded for the DAC3482 device. -
Page 7: Cdce62005 Tab Configured For 4X Interpolation
The following CDCE62005 outputs are critical to proper operation of the DAC348x: ● Y1: DAC348x FIFO OSTR clock. The clock rate for this should be at least F DAC3484 mode and DAC3482 mode. O The whole OSTR clock equation needs to take account of both the Y1 CDCE62005 clock divider ratio and the additional CDCP1803 divide-by-2 clock divider. -
Page 8: Basic Test Procedure
The test set-up for general testing of the DAC348x with the TSW3100 pattern generation card is shown in Figure Ethernet TSW3100 Pattern Generator DAC3484/DAC3482 EVM DAC348X +6 V Figure 7. Test Set-up Block Diagram © 2011, Texas Instruments Incorporated www.ti.com Signal Generator (CLK Source) Spectrum Analyzer Signal Generator (LO Source) SLAU336 –... -
Page 9: Test Set-Up Connection
Enter desired Offset Frequency (i.e. 30 MHz) for each desired carrier • Select the 16b QDAC output button • Check the “LOAD and Run” box • Press the green “Create” button SLAU336 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated Basic Test Procedure DAC3484/DAC3482 EVM... -
Page 10: Dac348X Software Quick Start Guide
Provide the LO source of 1.9GHz (12dBm max) at either J19 or J22 SMA connector of the DAC3484 EVM. – Provide the LO source to J24 SMA connector for the DAC3482 EVM • Turn on power to the board and press the reset button on the EVM •... -
Page 11: Dac3484 + Trf3703-15 Wcdma Output
Basic Test Procedure www.ti.com (Baseband = 30MHz, NCO = 30MHz with NCO Gain disabled, QMC Gain = 1446, LO = 1900MHz) Figure 9. DAC3484 + TRF3703-15 WCDMA Output SLAU336 – March 2011 DAC3484/DAC3482 EVM Submit Documentation Feedback © 2011, Texas Instruments Incorporated... -
Page 12: Optional Configuration
(Horizontal position): R19, R26, R33, R27, R35, R97, R76, R98. • Install the following resistors (Vertical position): R162, R163, R17, R161, R8, R11, R1, R3. See Figure 11 below for detail. DAC3484/DAC3482 EVM © 2011, Texas Instruments Incorporated www.ti.com SLAU336 – March 2011 Submit Documentation Feedback... -
Page 13: Locations Of Dac348X To Transformer Output Jumper Locations
Verify the spectrum using the Spectrum Analyzer at the four DAC outputs of the DAC EVM (J7, J6, J3, and J2). • (Toggle the SIF SYNC button to sync the appropriate digital blocks, if example file with NCO setting is used) SLAU336 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated Optional Configuration DAC3484/DAC3482 EVM... -
Page 14: Dac3484 Transformer Coupled Output At 60Mhz If
Optional Configuration www.ti.com (baseband = 30MHz, NCO = 30MHz with NCO Gain disabled, QMC Gain = 1446) Figure 12. DAC3484 Transformer Coupled Output at 60MHz IF DAC3484/DAC3482 EVM SLAU336 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated... -
Page 15: Using The Dac3482 Or Configuring Dac3484 In Dac3482 Mode
Using the DAC3482 or Configuring DAC3484 in DAC3482 mode The DAC3484 EVM can also be used to evaluate the performance of DAC3482, or configure the DAC3484 in Dual-DAC mode instead of the Quad-DAC mode. For DAC3482 or DAC3484 in Dual-DAC mode, only the Inner Channels (B and C) are functional and the other two channels (A and D) are disabled. -
Page 16: Locations Of The Dac3482 To Trf3703-15 Interface Jumpers
Dual-DAC. Figure 15 communication signal for DAC3482. LVDS output option is selected. The setting displayed generates a single carrier WCDMA signal at an IF of 30MHz for a DAC3482 running at 1228.8MHz with 4x interpolation enabled. DAC3484/DAC3482 EVM shows a screen shot of TSW3100 GUI for generating a ©... -
Page 17: Tsw3100 Gui Configuration For Generating A Wcdma Signal For Dac3482
Optional Configuration www.ti.com Figure 15. TSW3100 GUI Configuration for Generating a WCDMA Signal for DAC3482 SLAU336 – March 2011 DAC3484/DAC3482 EVM Submit Documentation Feedback © 2011, Texas Instruments Incorporated... -
Page 18: Fcc Warning
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 19: 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. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.
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