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Evaluation Board User Guide 

UG-076

 

Rev. A | Page 13 of 16 

EVALUATION SOFTWARE MENU ITEMS 

087

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7

 

Figure 24. Menu Bar 

MENU BAR 

File Menu 

The file menu has the following options. 

Load Setup 

Clicking 

Load Setup

 loads a previously save

AD9520

 setup file 

(.stp). A setup file is a text file that contains th

AD9520

 register 

setup file, plus any evaluation board settings. Note that the user 
must still perform a VCO calibration. 

Save Setup 

Clicking 

Save Setup

 saves a

AD9520

 setup file (.stp). A setup 

file is a text file that contains th

AD9520

 register setup file, 

plus any evaluation board settings. 

Generate Binary File 

Click this menu option to generate binary setup files that can be 
used by EEPROM programmers. 

Exit 

Click 

Exit

 to exit the evaluation software. No checking is 

performed to ensure that the existing setup is saved.  

I/O Menu 

The 

I/O

 menu includes the following options. 

Select Evaluation Board 

The 

AD9520

 evaluation system allows one PC to control 

multiple evaluation boards. This window allows the user to 
select which evaluation board the software is controlling. Click 

Refresh List 

to detect a recently connected evaluation board 

(see Figure 25). 

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74

6-

0

19

 

Figure 25. 

Select USB Device

 Window 

Configure Serial Port 

The 

I/O Interface 

window allows the user to control how the 

USB controller interacts with th

AD9520

 serial port (see 

Figure 26).  

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874

6-

02

0

 

Figure 26. 

I/O Interface

 Window 

If using I

2

C mode, this window allows the user to select which 

address to use. Note that it must correspond to the S5 and S6 
jumper settings on the evaluation board. The user can also click 

Detect Current Configuration

 to discover which I

2

C address is 

active (see Figure 26). 

However, if attempting to program an 

AD9520

 on a remote 

board via a header cable from Connector P1, the I

2

C address of 

the on-boar

AD9520

 must not match the I

2

C address of the 

remote 

AD9520

 that the user is attempting to program.  

View Menu 

The 

View

 menu includes the following options. 

Debug 

This window (see Figure 23) allows the user to write and read 
registers directly, as well as force the various configuration pins 
high and low. 

Options 

This window allows the selection of Windows® XP visual styles.  

Operational Modes Menu 

This menu allows the user to select any of the three operational 
modes in the 

AD9520

 data sheet. 

Help Menu 

Clicking 

Help

 opens the 

About AD9520

 window, which 

contains information such as revision number, region 
information, and contact information. 

Содержание AD9520-0

Страница 1: ...are very low noise phase locked loop PLL clock synthesizers featuring an integrated voltage controlled oscillator VCO clock dividers and up to 24 outputs The AD9520 product series features automatic...

Страница 2: ...D9520 on a User Board 15 AD9520 Binary File Generation 16 Checksum Generation 16 Avoiding Checksum Mismatches 16 REVISION HISTORY 5 2017 Rev 0 to Rev A Changes to Title and General Description Section...

Страница 3: ...ng is recommended in applications requiring automatic hitless reference switching There is a possibility that the AD9520 receive buffer can chatter when an ac coupled clock stops toggling Connect an o...

Страница 4: ...ing that the evaluation board was found or red text appears indicating that the evaluation board was not found 2 If the evaluation board is found click anywhere in the pop up window with the Evaluatio...

Страница 5: ...p from the PLL MODE box found at the top of the main window see Figure 8 2 Enter the intended reference input frequency in megahertz in the REF 1 MHz box at the upper left corner of the main window 3...

Страница 6: ...f the CHARGE PUMP box However this setting normally does not need to be modified 11 Set the VCO divider by clicking the green VCO box in the center of the main window immediately to the left of the Ca...

Страница 7: ...are listed in the following sections and each of these subsections has its own window From the main window each functional block can be accessed by clicking that block in the main window When a subwi...

Страница 8: ...N WINDOW The PLL Configuration window shown in Figure 11 is opened by clicking the Config PLL button on the main screen The window has three sections SyncB Counter Reset Mode PLL Status Registers and...

Страница 9: ...ssed by clicking the EEPROM button near the lower left corner of the main window 08746 008 Figure 12 EEPROM Control Window To store the current register settings of the AD9520 to the EEPROM click the...

Страница 10: ...der value For example it is not possible to use the internal VCO and a feedback divider of 30 However the R divider can be doubled which allows a feedback divider of 60 The feedback divider window has...

Страница 11: ...king the Cal VCO button in the main window 08746 015 Figure 19 Calibrate VCO Window A valid reference input signal must be present to complete VCO calibration and the VCO must be recalibrated any time...

Страница 12: ...istors on each output This termination scheme is ideal for LVPECL drivers However this scheme degrades the CMOS driver performance Improved CMOS driver performance is achieved by removing the 200 pull...

Страница 13: ...ted evaluation board see Figure 25 08746 019 Figure 25 Select USB Device Window Configure Serial Port The I O Interface window allows the user to control how the USB controller interacts with the AD95...

Страница 14: ...better choice Typical phase detector frequencies for these applications are 10 MHz to 100 MHz and typical loop bandwidths for this loop filter are 50 kHz to 500 kHz depending on the configuration The...

Страница 15: ...and then click Detect Current Configuration A dialog box appears and acknowledges the I2 C mode and address The evaluation software starts at I2 C Address 0x058 and stops at the first valid I2 C addre...

Страница 16: ...MA 02062 USA Subject to the terms and conditions of the Agreement ADI hereby grants to Customer a free limited personal temporary non exclusive non sublicensable non transferable license to use the Ev...

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