English dropdown-ico

Texas Instruments DAC3482 manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Texas Instruments DAC3482, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Texas Instruments DAC3482 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Texas Instruments DAC3482. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Texas Instruments DAC3482 should contain:
- informations concerning technical data of Texas Instruments DAC3482
- name of the manufacturer and a year of construction of the Texas Instruments DAC3482 item
- rules of operation, control and maintenance of the Texas Instruments DAC3482 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Texas Instruments DAC3482 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Texas Instruments DAC3482, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Texas Instruments service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Texas Instruments DAC3482.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Texas Instruments DAC3482 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    User's Guide SLAU336 – March 2011 DAC3484/DAC3482 EVM Contents 1 Introduction .................................................................................................................. 2 1.1 Overview ............................................................................................................ 2 1.2 EVM Block Diagram ..[...]

  • Page 2

    19.2MHz TCXO CDCE62005 DAC348X DA T A DA T A _CLK FRAME SYNC P ARITY (L VDS DC Coupled ) DAC_CLK (L VPECL AC Coupled) OSTR_CLK (L VPECL AC Coupled) J20 RF J19 LO FPGA CLK TSW3100 L VPECL DC coupled TRF3703-15 Default TRF3703- 15 Output J7 J6 + _ _ + J10 Ext. CLK Output 6 V Only J6 Power Supply Circuits J21 RF J22 LO TRF3703-15 Default TRF3703- 15 O[...]

  • Page 3

    www.ti.com Software Control 2 Software Control 2.1 Installation Instructions • Open the folder named DAC348x_Installer_vxpx (xpx represents the latest version) • Run Setup.exe • Follow the on-screen instructions • Once installed, launch by clicking on the DAC348x_GUI_vxpx program in Start>Texas Instruments DACs • When plugging in the U[...]

  • Page 4

    Software Control www.ti.com • FIFO: allows the configuration of the FIFO and FIFO sync sources. • LVDS delay: provides internal delay of either the LVDS DATA or LVDS DATACLK to help meet the input setup/hold time. • Data Routing: provides flexible routing of the A, B, C, and D sample input data to the appropriate digital path. Note: the DAC34[...]

  • Page 5

    www.ti.com Software Control 2.2.2 Digital Block Options Figure 4. Digital Block Options ● Interpolation: allows control of the data rate versus DAC sampling rate ratio (i.e. data rate × interpolation = DAC sampling rate). ● Digital Mixer: allows control of the coarse mixer function. Note: If fine mixer (NCO) is used, the “Enable Mixer” but[...]

  • Page 6

    Software Control www.ti.com ● NCO: allows fine mixing of the I/Q signal. The procedure to adjust the NCO mixing frequency are listed below: 1. Enter the DAC sampling frequency in Fsample. 2. Enter the desired mixing frequency in both NCO freq_AB and NCO freq_CD. 3. Press Update freq 4. Sync the NCO block from the following options: ● REGWR : au[...]

  • Page 7

    www.ti.com Software Control 2.2.4 CDCE62005 Figure 6. CDCE62005 Tab Configured for 4x Interpolation Clock frequency control is determined by register values in the CDCE62005 Control tab. Please refer to the CDCE62005 datasheet for detailed explanations of the register configuration to change the clock frequency. The following CDCE62005 outputs are [...]

  • Page 8

    PC +5V +6 V Ethernet USB J13 J9 DAC348X J14 J18 TSW3100 Pattern Generator J74 J13 Cross-over Ethernet Cable USB Mini-B Cable RF LO Spectrum Analyzer Signal Generator (LO Source) Signal Generator (CLK Source) J9 Basic Test Procedure www.ti.com 2.2.5 Register Control ● Send All: Sends the register configuration to all devices ● Read All: Reads re[...]

  • Page 9

    www.ti.com Basic Test Procedure 3.2 Test Set-Up Connection ● TSW3100 Pattern Generator 1. Connect 5V power supply to J9, 5V_IN jack of the TSW3100 EVM. 2. Connect the PC’s Ethernet port to J13, Ethernet port of the TSW3100. The cable should be a standard cross-over Cat5e Ethernet cable. ● DAC3484 EVM 1. Connect J13 connector of DAC348x EVM to[...]

  • Page 10

    Basic Test Procedure www.ti.com Figure 8. TSW3100 CommsSignalPattern (WCDMA) Programming GUI 3.4 DAC348x Software Quick Start Guide • Provide the clock input 1228.8 MHz at 1.5Vrms at J9 SMA connector of the DAC3484 EVM. • Provide the LO source of 1.9GHz (12dBm max) at either J19 or J22 SMA connector of the DAC3484 EVM. – Provide the LO source[...]

  • Page 11

    www.ti.com Basic Test Procedure (Baseband = 30MHz, NCO = 30MHz with NCO Gain disabled, QMC Gain = 1446, LO = 1900MHz) Figure 9. DAC3484 + TRF3703-15 WCDMA Output 11 SLAU336 – March 2011 DAC3484/DAC3482 EVM Submit Documentation Feedback © 2011, Texas Instruments Incorporated[...]

  • Page 12

    Optional Configuration www.ti.com (Baseband = 30MHz, NCO disabled, QMC Gain = 1024, LO = 1930MHz) Figure 10. DAC3484 + TRF3703-15 WCDMA Output 4 Optional Configuration 4.1 Configuring and Testing the DAC3484 Transformer Coupled Output • Eight 0 Ohm resistors must be moved to configure the output of the DAC3484 to be 4:1 transformer coupled • re[...]

  • Page 13

    www.ti.com Optional Configuration Figure 11. Locations of DAC348x to Transformer Output Jumper Locations • Provide the clock input 1228.8 MHz at 1.5Vrms at J9 SMA connector of the DAC3484 EVM • Turn on power to the board and press the reset button on the EVM • Press the “Reset USB Port” button in GUI and verify USB communication. • Swit[...]

  • Page 14

    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 14 DAC3484/DAC3482 EVM SLAU336 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated[...]

  • Page 15

    www.ti.com Optional Configuration (baseband = 30MHz, NCO disabled, QMC Gain = 1024) Figure 13. DAC3484 Transformer Coupled Output at 30MHz IF 4.2 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. Fo[...]

  • Page 16

    Optional Configuration www.ti.com Figure 14. Locations of the DAC3482 to TRF3703-15 Interface Jumpers The pattern generation is different for DAC3484 EVM when it is used as a Quad-DAC, compared to when it is used as a Dual-DAC. Figure 15 shows a screen shot of TSW3100 GUI for generating a communication signal for DAC3482. LVDS output option is sele[...]

  • Page 17

    www.ti.com Optional Configuration Figure 15. TSW3100 GUI Configuration for Generating a WCDMA Signal for DAC3482 17 SLAU336 – March 2011 DAC3484/DAC3482 EVM Submit Documentation Feedback © 2011, Texas Instruments Incorporated[...]

  • Page 18

    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 th[...]

  • 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[...]