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dc1705cfb

DEMO MANUAL DC1705C

Figure 2. DC590 Jumper Locations

QUICK START PROCEDURE

PLLWizard Installation

The PLLWizard software is used to communicate with

the LTC6946 synthesizer. It uses the DC590 to translate

between USB and SPI-compatible serial communications

formats. It also includes advanced PLL design and simula-

tion capabilities. The following are the PLLWizard system

requirements:
• Windows Operating System: Windows XP,

Windows 2003 Server, Windows Vista, Windows 7

•  Microsoft .NET 2.0 or later
•  Windows Installer 3.1 or later
•  Linear Technology’s QuikEval and DC590 hardware

Microsoft .NET

You must have Microsoft .NET 2.0 or later installed on

your computer. PLLWizard will not run without it. Note that

with Windows Vista and Windows 7, you should have at

least version 3.5 pre-installed.
To manually determine your version of .NET using Win-

dows XP, click

Start Menu

→

Settings

→

Control Panel

→

Add or Remove Programs.

Depending upon your .NET version, choose one of

two PLLWizard setup programs, downloaded from

http://www.linear.com/software

Downloaded from

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Содержание DC1705C

Страница 1: ...ions Each DC1705C provides 50Ω SMA connectors for the reference frequency input fREF REF IN the reference output buffer REF OUT and the differential RF output RF and RF A DC590 USB serial controller board is usedforSPIcommunicationwiththeLTC6946 controlled by the supplied PLLWizard software Design files for this circuit board are available at http www linear com demo DC1705C L LT LTC LTM Linear Te...

Страница 2: ...ch as the Wenzel 501 04608A or 501 04516D OCXO is recommended If using a different frequency make sure to update the fREF and R_DIV boxes under the System tab in PLLWizard so that fPFD is still 1MHz For example if a 20MHz clock is used fREF should be changed to 20MHz and R_DIV to 20 REF BST and FILT under the System tab in PLLWizard might need to be changed if the reference frequency and or power ...

Страница 3: ...ntheDC590beforerunningtheinstallation program 2 Download the QuikEval installation program from http www linear com software 3 Run the QuikEval installation program and follow the on screeninstructions Moredetailedinstallationinfor mation may be found in the DC590 s Quick Start guide 4 Exit the QuikEval program once the installation is com plete as it is not needed to run the PLLWizard software 5 ...

Страница 4: ...dows 7 Microsoft NET 2 0 or later Windows Installer 3 1 or later Linear Technology s QuikEval and DC590 hardware Microsoft NET You must have Microsoft NET 2 0 or later installed on yourcomputer PLLWizardwillnotrunwithoutit Notethat with Windows Vista and Windows 7 you should have at least version 3 5 pre installed To manually determine your version of NET using Win dows XP click Start Menu Setting...

Страница 5: ...Downloaded from Microsoft PLLWizardSetup_net20 exe 2 0 SP2 Included Much Larger File Size Choose PLLWizardSetup if you have NET 2 0 or later have Windows Vista or Windows 7 or if you have less than NET 2 0 but want the latest NET installed Choose PLLWizardSetup_net20 if you have less than NET 2 0 and want faster installation no additional Microsoft downloads are needed but the file size is much la...

Страница 6: ...Wizard Set Files The red LED on DC1705C should turn on indicating that the loop is locked at 900MHz You can then change the values of N_DIV and or O_DIV in PLLWizard to change the output frequency Troubleshooting If the red LED does not illuminate follow the instructions below 1 Verify that you are able to communicate with the DC1705C The bottom status line in PLLWizard should read LTC6946 and Com...

Страница 7: ...4 DC1705C Components and Connections QUICK START PROCEDURE Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Страница 8: ...W 1 0402 NIC NRC04F51R1TRF 17 1 R3 RES CHIP 330Ω 1 16W 1 0402 NIC NRC04F3300TRF 18 1 R4 RES CHIP 15Ω 1 16W 1 0402 NIC NRC04F15R0TRF 19 4 R5 R6 R7 R13 RES CHIP 200k 1 16W 1 0402 NIC NRC04F2003TRF 20 3 R8 R9 R14 RES CHIP 4 99k 1 16W 1 0402 NIC NRC04F4991TRF 21 4 R10 R11 R12 R16 RES CHIP 100Ω 1 16W 5 0402 NIC NRC04J101TRF 22 1 R15 RES CHIP 0Ω 0603 VISHAY CRCW06030000Z0EA 23 2 U2 U3 I C DUAL BUFFER SC...

Страница 9: ...H682JA01D 4 1 CP CAP COG 2700pF 50V 5 0603 MURATA GRM1885C1H272JA01D 5 1 RZ RES CHIP 453Ω 1 10W 1 0603 NIC NRC06F4530TRF 6 1 U1 I C SYNTHESIZER QFN28UFD 4X5 LINEAR TECH LTC6946IUFD 3 DC1705C D 1 1 GENERAL BOM 2 1 CI1 CAP X7R 0 01µF 50V 5 0603 AVX 06035C103JAT2A 3 1 CI2 CAP COG 0 01μF 50V 5 0805 MURATA GRM2195C1H103JA01 4 1 CP CAP COG 1500pF 50V 5 0603 MURATA GRM1885C1H152JA01D 5 1 RZ RES CHIP 536Ω...

Страница 10: ...ED FOR USE WITH LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 1 DEMO CIRCUIT 1705C Thursday October 02 2014 1 2 ULTRALOW NOISE SPURIOUS INTEGER N N A LTC6946IUFD FAMILY KIM T CHRIS P SYNTHESIZER WITH INTEGRATED VCO SIZE DATE IC NO REV SHEET OF TITLE APPROVALS PCB DES APP ENG TECHNOLOGY Fax 408 434 0507 Milpitas CA 95035 Phone 408 432 1900 1630 McCarthy Blvd LTC Confidential For Customer Use On...

Страница 11: ...EAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 1 DEMO CIRCUIT 1705C Thursday October 02 2014 2 2 ULTRALOW NOISE SPURIOUS INTEGER N N A LTC6946IUFD FAMILY KIM T CHRIS P SYNTHESIZER WITH INTEGRATED VCO SIZE DATE IC NO REV SHEET OF TITLE APPROVALS PCB DES APP ENG TECHNOLOGY Fax 408 434 0507 Milpitas CA 95035 Phone 408 432 1900 1630 McCarthy Blvd L...

Страница 12: ...r the LTC6946 Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Страница 13: ...EVISION HISTORY BOARD REV DATE DESCRIPTION Original Design B 03 12 Added EEPROM for identification purposes C 05 13 Added support for 5V SPI in addition to the default 3 3V 11 14 Added DC1705C D version Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from...

Страница 14: ...CIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or use of the goods Due to the open construction of the product it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge Also be aware th...

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