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Figure 8. Layer 3, GND

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DAC5668/88/89EVM

SLAU241A – June 2008 – Revised March 2010

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Copyright © 2008–2010, Texas Instruments Incorporated

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Содержание DAC5668

Страница 1: ...tputs from the DAC are available via SMA connectors Because of its flexible design the analog outputs of the DAC device can be configured to drive a 50 terminated cable using a 4 1 or 1 1 impedance ra...

Страница 2: ...5688 shares the same EVM software since both DACs have internal PLL VCO The DAC5689 has a stand alone EVM software 2 1 Minimum Requirements Before installing the software verify that the PC meets the...

Страница 3: ...dware Wizard guides you through the final setup steps If the Hardware Wizard does not start ensure that the cable is connected properly Instruct the Hardware Wizard to find the software automatically...

Страница 4: ...end of this guide See the DAC5668 DAC5688 DAC5689 CDCM7005 and TRF3703 data sheets for more information on each device 3 1 Texas Instruments Components on the DAC5668 88 89EVM A basic radio system blo...

Страница 5: ...s for natural DAC Sin X X frequency rolloff The digital Quadrature Modulator Correction QMC feature allows IQ compensation of phase gain and offset to maximize sideband rejection and minimize LO feedt...

Страница 6: ...1 8VDD for normal 1 8 VDD Pin 1 2 operation J5 EXTLO Internal GND or external 3 3V voltage reference Internal Reference Pin 1 2 CDC_PD Active low power down of CDCM7005 Active CDCM7005 Pin 2 3 RESET D...

Страница 7: ...34 pin headers J2 and J7 per Table 4 and Table 5 The board provides series dampening resistors to minimize digital ringing and switching noise The DAC logic level is selected through software Table 4...

Страница 8: ...Clock Options In both CDCM7005 configurations the Y1A Y1B outputs are used to drive the DAC5668 88 89 CLK2 CLK2C inputs The DAC5668 88 89 can also be operated in dual clock mode in which case a second...

Страница 9: ...5 Vpp output 4 7 2 RF Output To configure the DAC5668 88 89EVM to evaluate the RF output default setup the following changes need to be done to the board 1 R46 R56 R58 and R69 need to be installed 2 R...

Страница 10: ...rnal reference by connecting a voltage source to EXTIO and connecting EXTLO to 3 3 Vdc J5 EXTLO connected between pins 2 and 3 The specified range for external reference voltages must be observed 5 DA...

Страница 11: ...ng 5 1 1 General Controls Reset USB Port Begins a new USB session Click this button if a status error message occurs Readback Enabled Disabled Enable or disables the DAC register reads When Readback i...

Страница 12: ...EVM power has recycled or the device has been reset and the user wants to load the displayed settings to the device Read All Reads the current registers on the DAC This is used to verify settings on t...

Страница 13: ...capable of providing 3 3 V or 1 8 V CMOS logic level inputs such as Texas Instruments TSW3100 2 Use the DAC5668 88 89 EVM DAC_CLKOUT J21 SMA connector to trigger the pattern generator In the case of t...

Страница 14: ...8 C100 C104 C107 1 C2 0 47mF 0603 Murata GRM188R71C474KA88D 6 C3 C55 C66 C85 1000pF 0402 Panasonic ECJ 0EB1E102K C89 C113 1 C4 22mF tant_a Kemet T494A226M010AS 8 C5 C34 1mF 0603 Panasonic ECJ 1V41E105...

Страница 15: ...S 10NXLU 4 L4 L7 68nH 0603 Coilcraft 0603CS 68NXJL 3 R1 R3 R84 1K 0402 Panasonic ERJ 2RKF1001X 13 R2 R27 R79 R88 22 1 0402 Panasonic ERJ 2RKF22R1X R89 R96 R98 R104 0 R4 1K 0402 Panasonic ERJ 2RKF1001X...

Страница 16: ...SN74LVC1G125DBVR SOT_5_120x69_57 Texas Instruments SN74LVC1G125DBVR 0 U3 614 4MHZ VCXO_6_CUSTOM Toyocom TCO 2111 491 52_DNI DNI 1 U4 CDCM7005 QFN48 Texas Instruments CDCM7005RGZT 1 U5 TRF3703 33 QFN24...

Страница 17: ...2 Printed Circuit Board Layout The following illustrations present the layers of the DAC5668 88 89EVM board 17 SLAU241A June 2008 Revised March 2010 DAC5668 88 89EVM Submit Documentation Feedback Copy...

Страница 18: ...of Materials and Schematics www ti com Figure 6 Top Silk Screen 18 DAC5668 88 89EVM SLAU241A June 2008 Revised March 2010 Submit Documentation Feedback Copyright 2008 2010 Texas Instruments Incorpora...

Страница 19: ...w ti com Bill of Materials and Schematics Figure 7 Layer 2 GND 19 SLAU241A June 2008 Revised March 2010 DAC5668 88 89EVM Submit Documentation Feedback Copyright 2008 2010 Texas Instruments Incorporate...

Страница 20: ...ll of Materials and Schematics www ti com Figure 8 Layer 3 GND 20 DAC5668 88 89EVM SLAU241A June 2008 Revised March 2010 Submit Documentation Feedback Copyright 2008 2010 Texas Instruments Incorporate...

Страница 21: ...w ti com Bill of Materials and Schematics Figure 9 Layer 4 PWR 21 SLAU241A June 2008 Revised March 2010 DAC5668 88 89EVM Submit Documentation Feedback Copyright 2008 2010 Texas Instruments Incorporate...

Страница 22: ...Bill of Materials and Schematics www ti com Figure 10 Layer 5 22 DAC5668 88 89EVM SLAU241A June 2008 Revised March 2010 Submit Documentation Feedback Copyright 2008 2010 Texas Instruments Incorporated...

Страница 23: ...w ti com Bill of Materials and Schematics Figure 11 Layer 6 PWR 23 SLAU241A June 2008 Revised March 2010 DAC5668 88 89EVM Submit Documentation Feedback Copyright 2008 2010 Texas Instruments Incorporat...

Страница 24: ...ll of Materials and Schematics www ti com Figure 12 Layer 7 GND 24 DAC5668 88 89EVM SLAU241A June 2008 Revised March 2010 Submit Documentation Feedback Copyright 2008 2010 Texas Instruments Incorporat...

Страница 25: ...com Bill of Materials and Schematics Figure 13 Bottom Silk Screen 25 SLAU241A June 2008 Revised March 2010 DAC5668 88 89EVM Submit Documentation Feedback Copyright 2008 2010 Texas Instruments Incorpo...

Страница 26: ...cs www ti com 7 3 Schematics The DAC5668 88 89EVM schematics appear on the following pages 26 DAC5668 88 89EVM SLAU241A June 2008 Revised March 2010 Submit Documentation Feedback Copyright 2008 2010 T...

Страница 27: ...C 5 TXENABLE 6 DA15 7 DA14 8 IOVDD 9 DVDD10 10 DA13 11 DA12 12 DA11 13 DA10 14 DA9 15 DA8 16 DA7 17 DA6 18 DA5 19 DA4 20 DA3 21 DA2 22 DA1 23 DA0 24 CLK0_CLK1 25 LOCK_CLK1C 26 DB0 27 DB1 28 DB2 29 DB3...

Страница 28: ...Size Document Number Rev Date Sheet of D DAC5668 88 89 EVM B 2 7 Wednesday December 23 2009 JUMPER PINS 5 6 JUMPER PINS 16 17 JUMPER PINS 10 11 JUMPER PINS 20 21 J5 JUMPER PINS 1 2 R96 22 1 R96 22 1 R...

Страница 29: ...F DNI C26 2 2pF DNI C85 1000pF C85 1000pF C12 4 7pF DNI C12 4 7pF DNI R40 90 9 R40 90 9 C96 3 3pF C96 3 3pF R59 115 R59 115 R62 49 9 R62 49 9 R60 634 R60 634 C88 1uF C88 1uF 68 ohm 100MHz FB10 68 ohm...

Страница 30: ...C3 1000pF 10 25V C3 1000pF 10 25V R22 150 R22 150 R7 10K R7 10K R18 0 R18 0 C72 1uF C72 1uF R23 130 R23 130 R11 130 R11 130 R27 22 1 R27 22 1 C58 560pF 10 50V C58 560pF 10 50V C77 1uF C77 1uF R24 130...

Страница 31: ...110 100 R104 22 1 R104 22 1 R101 22 1 R101 22 1 R108 10K R108 10K R105 100 R105 100 C107 1uF C107 1uF R103 22 1 R103 22 1 R111 100 R111 100 R100 22 1 R100 22 1 U9 FT245RL U9 FT245RL USBDM 16 USBDP 15...

Страница 32: ...1 47uF 10V 20 C41 01uF C41 01uF J10 BANANA_JACK_BLK GND J10 BANANA_JACK_BLK GND C39 01uF C39 01uF C49 47uF 10V 20 C49 47uF 10V 20 C45 1uF 20 25V C45 1uF 20 25V 68 OHM 100MHz FB12 68 OHM 100MHz FB12 J1...

Страница 33: ...2 22 1 C55 1000pF C55 1000pF JP1 REF_CLK SHUNT 2 3 JP1 REF_CLK SHUNT 2 3 1 3 2 R73 60 4 DNI R73 60 4 DNI L10 56nH DNI L10 56nH DNI 1 2 R74 100 R74 100 x_SCREW3 SCREW PANHEAD 4 40 x 3 8 x_SCREW3 SCREW...

Страница 34: ...duct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application enginee...

Страница 35: ...h statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury...

Страница 36: ...401 Building No 5 JiuGe Business Center Lane 2301 Yishan Rd Minhang District Shanghai China Sales Direct 86 21 6401 6692 Email amall ameya360 com QQ 800077892 Skype ameyasales1 ameyasales2 Customer Se...

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