Analog Devices AD9102 Manual de usuario

AD9102 Evaluation Board

Quick Start Guide

One Technology Way P. O. Box 9106 Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 www.analog.com

Getting Started with the AD9102 Evaluation Board and Software

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

WHAT’S IN THE BOX

AD9102-EBZ Evaluation Board

Mini-USB Cable

DAC Evaluation Software Suite CD

EXAMPLE EQUIPMENT LIST

+5Vdc Power Supply: Agilent E3630A

DAC Clock Source: R&S SML 02

Oscilloscope: Agilent DSO-X 3034A

PC: Windows PC with USB 2.0 port

INTRODUCTION

AD9102 EVALUATION BOARD

The AD9102 is a Digital to Analog converter and Waveform Generator. The AD9102-EBZ evaluation board includes a PIC 18F4550

processor programmed to function as a PC USB interface to the SPI port of the device. And an AD9514 clock chip that takes in an up to

1440Mhz signal from the clock source and provides the CLKP/N input to the AD9102. The EVB runs from a single 5 volt supply. Figure

12 is a photo of the top side of the AD9102 EVB.

AD9102 EVALUATION SOFTWARE GUI

The AD9102 Evaluation Board GUI software (Figure 1 and Figure 2) has a number of tabs. Each tab allows the user to view or manually

program a subset of AD9102 registers and on-chip data RAM. The RAM tab lets the user download vectors to the RAM. The AD9102

evaluation board CD includes RAM vectors for use with example files described below where appropriate. The DAC1 tab works with the

AD9102 DAC. The DAC2, DAC3 and DAC4 tabs are not used with this product. The DAC tab depicts the waveform generation signal

chain for the AD9102 DAC. The Register Write Sequence tab is used to select and write register configuration files to the AD9102.

Further details on the evaluation software can be found in AD9102 Evaluation System Notes below.

CONFIGRATION EXAMPLE FILES

This quick start guide describes how to set up and run six configuration examples using the AD9102 control panel GUI software. The

AD9102 evaluation board CD includes the configuration files shown in Table 1for each example. Configuring and running the examples

is accomplished by downloading these files using the control panel GUI, by following the method described in the Quick Start Procedure

below.

Quick Start Guide AD9102-EBZ

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example Load File Regval File RAM Vector

example1 Default.seq example1.regval example1_RAM_guassuian.txt

example2 Default.seq example2.regval example2_4096_ramp.txt

example3 Default.seq example3.regval None

example4 Default.seq example4.regval None

example5 Default.seq example5.regval example5_RAM_guassian.txt

example6 Default.seq example6.regval None

Table 1: Configuration Example Files

Figure 1: AD9102 evaluation software Control Panel GUI, Board Configuration Tab

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Figure 2: AD9102 evaluation software Control Panel GUI, DAC1 Tab and Register_Write _Sequence Tab

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QUICK START PROCEDURE

INITIAL SETUP

1. Install AD9102 software and support files on your PC from the CD. The installer will automatically access the National

Instruments web site and download NI-VISA-4.6.2 and the Labview 2009 Runtime Engine.

2. Connect the EVB to your PC and lab equipment as shown in Figure 3 below. Use a USB cable to connect your PC to the

EVB.

It is suggested that the basic set-up is verified before making any modifications to the evaluation board.

Basic Hardware Set-Up

Connect the equipment to the AD9102 evaluation board as follows:

Equipment Connects to AD9102 Eval Board

Power Supply P3 (+5V), P7 (GND)

Signal Source Clk J10 (DAC Clock ), Set source to 1440MHz or lower, 3dBm output

PC USB Cable XP2

Oscilloscope J2 (DAC1_P) and J8 (DAC1_N)

Figure 3: EVB Bench set up

PROCEDURE FOR SETTING UP THE AD9102 TO RUN EXAMPLE CONFIGURATIONS

1. Turn on the 5V supply and the clock source

2. Start the AD9102 GUI Software

3. Follow the steps to get one of the six example configurations running

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Example1 Set-Up

a. Select the RAM tab

b. Press the download data from file button

c. Select the vector file example1_RAM_guassian.txt

d. Press the “Write Active Tab” button, wait for a write active tab followed by read active tab operation to

complete

e. Select the Register_Write_Sequence tab

f. Highlight the Default.seq file and example1.regval file – see Figure 2

g. Click on the “Load Register Sequence from File” button

h. Open the Board Config tab, Set Trigger slide switch to ON, Press Write Active Tab Button

i. Set trigger slide switch to OFF, Press Write Active Tab Button

j. The output from J2 and J8 will be as displayed in Figure 4

Figure 4 : Example 1 Result

Example2 Set-Up

a. Select the RAM tab

b. Press the download data from file button

c. Select the vector file example2_4096_ramp.txt

d. Press the “Write Active Tab” button, wait for a write active tab followed by read active tab operation to

complete

e. Select the Register_Write_Sequence tab

f. Highlight the Default.seq file and example2.regval file – see Figure 2

g. Click on the “Load Register Sequence from File” button

h. Open the Board Config tab, Set Trigger slide switch to ON, Press Write Active Tab Button

i. Set trigger slide switch to OFF, Press Write Active Tab Button

j. The outputs from J2 and J8 will be displayed as shown in Figure 5

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Figure 5 : Example 2 Result

Example3 Set-Up

a. Select the Register_Write_Sequence tab

b. Highlight the Default.seq file and example3.regval file – see Figure 2Error! Reference source not found.

c. Click on the “Load Register Sequence from File” button

d. Open the Board Config tab, Set Trigger slide switch to ON, Press Write Active Tab Button

e. Set trigger slide switch to OFF, Press Write Active Tab Button

f. The outputs from J2 and J8 will be as shown in Figure 6

Figure 6 : Example 3 Result

Example4 Set-Up

a. Select the Register_Write_Sequence tab

b. Highlight the Default.seq file and example4.regval file – see Figure 2

c. Click on the “Load Register Sequence from File” button

d. Open the Board Config tab, Set Trigger slide switch to ON, Press Write Active Tab Button

e. Set trigger slide switch to OFF, Press Write Active Tab Button

f. The outputs from J2 and J8 will be as shown in Figure 7

Quick Start Guide AD9102-EBZ

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Figure 7 : Example 4 Result

Example5 Set-Up

a. Select the RAM tab

b. Press the download data from file button

c. Select the vector file example5_RAM_guassian.txt

d. Select the Register_Write_Sequence tab

e. Press the “Write Active Tab” button, wait for a write active tab followed by a read active tab operation to

complete

f. Highlight the Default.seq file and example5.regval file – see Figure 2Error! Reference source not found.

g. Click on the “Load Register Sequence from File” button

h. Open the Board Config tab, Set Trigger slide switch to ON, Press Write Active Tab Button

i. Set trigger slide switch to OFF, Press Write Active Tab Button

j. The outputs from J2 and J8 will be as displayed in Figure 8

Figure 8 : Example 5 Result

Example6 Set-Up

a. Select the Register_Write_Sequence tab

b. Highlight the Default.seq file and example6.regval file – see Figure 2

c. Click on the “Load Register Sequence from File” button

d. Open the Board Config tab, Set Trigger slide switch to ON, Press Write Active Tab Button

e. Set trigger slide switch to OFF, Press Write Active Tab Button

f. The outputs from J2 and J8 will be as shown in Figure 9

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Figure 9 : Example 6 Result

AD9102 EVALUATION SYSTEM NOTES

AD9102 evaluation Software

When the Run button is pressed, the evaluation software will run until the STOP Button is pressed. The

GUI is arranged in TABs where the AD9102 functionalities are broken into different pages: CONFIG,

ANALOG/CAL, PATTERN CONFIG, RAM, DAC1 (TABs DAC2, DAC3, and DAC4 are unused with

AD9102). When a TAB is open, the information displayed may not reflect the current state of the AD9102 IC

on the evaluation board. To refresh this display the READ ACTIVE TAB button should be pressed.

Several operations can be executed from this GUI:

•RESET: When this button is clicked, a software reset of the part is executed. After the reset a READ

ALL TABS operation is performed

•READ ACTIVE TAB: Clicking this button launches a read operation of AD9102 registers displayed on

the TAB currently viewed. The results are reported back in the registers in the active tab.

•WRITE ACTIVE TAB: Clicking this button launches a write operation of AD9102 of the registers

displayed on the tab currently viewed. After the write operations, a READ ACTIVE TAB operation is

automatically executed to verify that the values written were actually stored in the part. If the values

change after the WRITE ACTIVE TAB button is clicked, it means that the communication was not

successful and the part is not communicating with the PC.

•READ ALL TABS: Clicking this button launches a read operation of all AD9102 registers, but not the

AD9102 on-chip RAM. The results are reported back in the registers in the tabs.

•WRITE ALL TABS: Clicking this button launches a write operation of all AD9102 registers, but not

the AD9102 on-chip RAM. After the write operations, a READ ALL TABS operation is automatically

executed to verify that the values written were actually stored in the part. If the values change after the

WRITE ALL TABS button is clicked, it means that the communication was not successful and the part

is not communicating with the PC.

The RAM TAB - see Figure 10, can be used to download data into the RAM. As the data is left justified in

the AD9102, the GUI proceeds to left justify the data for the user when downloading the data into the

AD9102. The RAM data is first stored in the PC in the table displayed in the GUI. The number of samples

stored in the variable is showed under the table. As the AD9102 has 4,096 samples care must be taken to

not exceed this size as the software will automatically ignore any data outside this range (i.e. the GUI will

only write the first 4096 samples in the table). When the data is uploaded to the software correctly, the

WRITE ACTIVE TAB button can be clicked to write this data into the RAM.

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Figure 10 :AD9102 Evaluation software RAM TAB

The BOARD CONFIG tab can be used to configure the evaluation board for power supply and signal levels

– Figure 11.

Figure 11 :AD9102 Evaluation software BOARD Config TAB

At the bottom of the page, there are also two tabs:

-Register_content Tab : Reports the current register value of the part

-Register_Write_Sequence Tab: Allows configurations to be written to the AD9102 following a

pre-determined sequence. Examples of sequence and register configurations are provided in the

evaluation software and user defined configuration can be saved and loaded.

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Figure 12: AD9102-EBZ Evaluation Board

Using the AD9514

By default the AD9514 is configured to provide a 180Mhz clock input to the AD9102 from a 1.44 Ghz sine wave

input to J10 of the EVB. The AD9514 has a configurable divider that can be set through external resistors on the

EVB. The AD9102 evaluation board allows the AD9514 divider to be set by changing resistors. Output 0 from the

AD9514 is used as a PECL output to drive the AD9102 CLKP/CLKN inputs. Output 2 is used to drive the external

clock on J9.

Table 2 summarizes a few common settings used to divide the input clock by 2, 4, 8 and 16.

S9 S10

÷2

1/3 0

R142

open

R136

open

R141

open

R147

0Ω

R143

open

R144

open

÷4

1 0

open open 0Ω0Ωopen open

÷8

2/3 1/3

open 0Ωopen open open open

÷16

1 2/3

open open 0Ωopen 0Ωopen

Table 2: AD9514 settings

Tabla de contenidos

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