Texas Instruments CDCM7005 Manuel d'utilisateur

CDCM7005 (QFN Package)Evaluation Module ManualHPA/High Speed Communications2005 Clock DriversUser’s GuideSCAU015

2-1Quick Start Quick StartIn order to setup the EVM quickly and to take some measurements at defaultsettings, the following actions are required:- Sup

3-1EVM Hardware EVM HardwareThis chapter discusses the EVM hardware.Topic Page3.1 Board View and Connector Location 3-2. . . . . . . . . . . . . . . .

Board View and Connector Location3-23.1 Board View and Connector LocationFigure 3−1. Board View3.2 Hardware ConfigurationThis section describes the bo

Hardware Configuration3-3EVM Hardware3.2.3 Programming Interfaces (J30, J31)The SPI of the device is used for writing to the control register of the d

Hardware Configuration3-4When the CDCM7005 is powered up, it defaults to five LVPECL outputs.However, this EVM is configured as follows:- Y0 − Y2 = LV

4-1Serial Peripheral Interface (SPI) Software Serial Peripheral Interface (SPI) SoftwareThis chapter discusses the serial peripheral interface softwar

Functional Description4-24.1 Functional DescriptionProgramming software here as described is intended for programming the in-ternal control register o

5-1Application Circuit Diagram Application Circuit DiagramThis chapter discusses the application circuit diagram.Topic Page5.1 Application Circuit Dia

Application Circuit Diagram5-25.1 Application Circuit DiagramThe following applications sections the two loop filter configurations arediscussed.5.1.1

Application Circuit Diagram5-3Application Circuit Diagram5.1.2 External Active Loop Filter Using OPA341Figure 5−2. CDCM7005 With a External Active Loo

IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,enhancements, improvemen

6-1Parts List, Board Layout, and Schematics Parts List, Board Layout, and SchematicsThis chapter contains the parts list, board layout, and schematics

Parts List6-26.1 Parts ListItem QTY ReferenceDesignatorFootprint Part Part Number1 24 C1−C9, C12,C13, C15, C17,C26, C40, C41,C46, C47, C53,C54, C56−C5

Parts List6-3Parts List, Board Layout, and SchematicsItemQTY ReferenceDesignatorFootprint Part Part Number22 2 C74 smd_cap_1210 10 µF MurataGRM32DR61E

Parts List6-4ItemQTY ReferenceDesignatorFootprint Part Part Number48 7 R4, R6, R13, R15,R62, R63, R65smd_res_0402 100 Ω PanasonicERJ−2RKF1000X49 6 R5,

Parts List6-5Parts List, Board Layout, and Schematics6.2 Board LayoutFigure 6−1. Component View and Silkscreen (Top View)

Parts List6-6Figure 6−2. Component View and Silkscreen (Bottom View)

Parts List6-7Parts List, Board Layout, and SchematicsFigure 6−3. Top Layer View

Parts List6-8Figure 6−4. Bottom Layer View

Parts List6-9Parts List, Board Layout, and SchematicsFigure 6−5. Ground Plane View

Parts List6-10Figure 6−6. Power Layer View6.3 SchematicsThe following pages contain the schematics for the CDCM7005 (QFNpackage).

EVM IMPORTANT NOTICETexas Instruments (TI) provides the enclosed product(s) under the following conditions:This evaluation kit being sold by TI is int

Parts List6-11Parts List, Board Layout, and Schematics5544332211D DCCBBA APWR_INVCCGNDAVCCGNDGNDAVCCGNDGNDVCCGNDVCC_CPTitleSize Document Number R e vD

Parts List6-125544332211D DCCBBA AREF_SELPLLLOCKPLL_LOCKSTAT_VCXO/I_REF_CPSTAT_VCXORESET RSTPWRDWNPW R_ DW NGNDVCC_CPAVCCAVCCVCCGNDGNDGNDGNDGNDGNDGNDG

Parts List6-13Parts List, Board Layout, and Schematics5544332211D DCCBBA AV_CTRLGNDGNDVCCGNDGNDGNDVCCGNDGNDV_CTRLCP_OUTTitleSize Document Number R e v

Parts List6-145544332211D DCCBBA AY3_SMAY4B_SMAPRI_REFC LKPRI_CLK_SENSEOUTBOUTVCXO_IN_EXTV_CTRLVCXO_INB_EXTY1_SMAY1B_SMASEC_ REFCLKVCXO_IN_SMAVCXO_INB

Parts List6-15Parts List, Board Layout, and Schematics5544332211D DCCBBA ACLKDATASPI_DATASPI_CLKSPI_LELEGNDGNDGNDVCCGNDGNDGNDVCCGNDVCCVCCCTRL_LECTRL_D

EVM WARNINGS AND RESTRICTIONSIt is important to operate this EVM within the supply voltage range of 3 V and 3.6 V.Exceeding the specified input range

Related Documentation From Texas Instrumentsiii PrefaceRead This FirstAbout This ManualThis manual explains how to use the CDCM7005 evaluation module

Contentsv Contents1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ContentsviFigures3−1 Board View 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1Introduction IntroductionThe CDCM7005 is a high-performance, low phase noise and low skew clocksynchronizer that synchronizes an on-board voltage c

CDCM7005 Functional Block Diagram1-21.1 CDCM7005 Functional Block DiagramPECLtoLVCMOSProgr. DelayNPECLINPUTCTRL_LECTRL_DATACTRL_CLKVCXO_INCP_OUTPLL_LO