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Texas Instruments CDCE62005, Руководство пользователя, Страница: 11 / 18

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EXT_LFN

EXT_LFP

EXT_LFN

EXT_LFP

PLLLOOPFILTER

LowInducatnaceFilter(Layout)

LOOPBW~

FILTER1

FILTER2

FILTER3

FILTER4

JUSTforTEST

LOOPBW~650HzCP=3mA

LOOPBW~

LOOPBW~

(R3=5K,C3=20pF)

(R3=5K,C3=120pF)

(R3=5K,C3=120pF)

(R3=5K,C3=120pF)

1

2

8

7

3

4

6

5

SW9

TDA04H0SK1

SW9

TDA04H0SK1

1

2

R82

0

R82

0

1

2

R74

5.1

R74

5.1

1

2

8

7

3

4

6

5

SW10

TDA04H0SK1

SW10

TDA04H0SK1

1

2

R88

5.1

R88

5.1

C106

10uF

C106

10uF

1

2

R76

5.1

R76

5.1

C1

16

100uF

C1

16

100uF

C105

1uF

C105

1uF

1

2

R75-NP

1.09K

R75-NP

1.09K

C109

4.7uFX5R-NP

C109

4.7uFX5R-NP

C1

14

47uF

C1

14

47uF

1

2

R81

0

R81

0

C1

15

10uF

C1

15

10uF

C107

0.27uF-NP

C107

0.27uF-NP

C1

1

1

4.7uF

C1

1

1

4.7uF

1

2

R75

5.1

R75

5.1

C1

10

22uF

C1

10

22uF

C108

2.2uF

C108

2.2uF

www.ti.com

CDCE62005EVM Board Schematic Diagram

SCAU024 – September 2008

Low Phase Noise Clock Evaluation Module — up to 1.5 GHz

11

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Содержание CDCE62005

Страница 1: ...des up to five differential or ten single ended low jitter outputs The CDCE62005 supports single ended and differential input signals as well as providing a crystal oscillator circuit that operates in...

Страница 2: ...the LVPECL output The corresponding load resistor must be selected in the software interface when an output is configured as LVPECL The LVCMOS outputs can operate at frequencies up to 250MHz The LVPEC...

Страница 3: ...ocation browse to the CDCE62005EVM program file folder that was used during instillation If Windows does not ask for a driver no action is needed After USB driver installation the EVM software should...

Страница 4: ...vider Input type Input selection PFD Charge Pump Internal External Loop Filter Output MUX selection Output Divider and Output type Other configurations are selected by the software with user selectabl...

Страница 5: ...art MUX The Smart MUX section of the EVMCS can be clicked for a popup window that opens as shown in Figure 4 showing Selections on the EECLKSEL option 0 suggests using the REF_SEL pin for input select...

Страница 6: ...be selected from the allowable dropdown list for each component Figure 6 Loop Filter Internal Only Alternately the loop filter with additional external components can be enabled by clicking the Use Ex...

Страница 7: ...e outputs can be clicked to open a popup window that shows options for each output clock source These are selectable between LVPECL High Swing LVPECL in which cases the output 150 termination is autom...

Страница 8: ...his configuration the USB microcontroller is powered by the USB port 5V supply while the CDCE62005 is powered by the 3 3V external supply This configuration is best for programming the CDCE62005 while...

Страница 9: ...lable options on the CDCE62005EVM using the dip switches SW9 and SW10 located at the bottom side of the EVM and shown below Figure 11 External Loop Filter Selection Switches Configuration for PLL Lock...

Страница 10: ...uF 1 2 C29 33pF C29 33pF 1 2 R138 4 7k R138 4 7k 1 2 R129 4 7k R129 4 7k 1 2 R110 10k R110 10k D8 MBRS2040LT3 D8 MBRS2040LT3 1 2 R7 33 R7 33 1 2 R144 10k R144 10k 1 2 R5 15k R5 15k 3 1 2 Q1 2N2222A Q1...

Страница 11: ...5 SW10 TDA04H0SK1 SW10 TDA04H0SK1 1 2 R88 5 1 R88 5 1 C106 10uF C106 10uF 1 2 R76 5 1 R76 5 1 C116 100uF C116 100uF C105 1uF C105 1uF 1 2 R75 NP 1 09K R75 NP 1 09K C109 4 7uF X5R NP C109 4 7uF X5R NP...

Страница 12: ...F C120 0 1uF 1 2 R223 150 R223 150 1 2 R229 0 NP R229 0 NP C119 0 1uF C119 0 1uF 1 2 R213 150 R213 150 Q56 FDV303N Q56 FDV303N 1 2 R222 10k R222 10k C131 0 1uF C131 0 1uF Q57 FDV303N Q57 FDV303N C130...

Страница 13: ...4 RESET 14 VCC1_PLL 5 VCC2_PLL 42 SEC_REF 3 SEC_REF 2 VCC_IN 1 PRI_REF 45 PRI_REF 46 VCC_IN 47 VBB 48 EXT_LFP 40 AUX_IN 43 EXT_LFN 41 PLL_LOCK 37 VCC_VCO 35 THERMAL_PAD 49 U5 CDCE62005 U5 CDCE62005 C1...

Страница 14: ...F C80 0 1uF C80 0 1uF OE 1 VCC 6 NC OUTN 5 OUT OUTP 4 GND 3 NC 2 U12 PE7745DU 30 72M U12 PE7745DU 30 72M C77 0 1uF C77 0 1uF C58 1uF C58 1uF 1 2 R130 49 9 R130 49 9 C78 0 1uF C78 0 1uF 1 3 2 JP_3_6 JP...

Страница 15: ...TIES EXPRESSED IMPLIED OR STATUTORY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE The user assumes all responsibility and liability for proper and safe handling of th...

Страница 16: ...ting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures...

Страница 17: ...siness practice TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product wo...

Страница 18: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments CDCE62005EVM...

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