IDT 82P33714 Скачать руководство пользователя страница 11

REVISION   A   09/15/14

11

82P33714/33814 EVALUATION BOARD  

Figure 13. Output Frequencies Entered after APLL1/APLL2 Configured (example)

Finally, FRSYNC & MRFRSYNC can be configured, if needed. Change FRSYNC & MFRSYNC to 1PPS. By default, 

the duty cycle of sync outputs is 50/50. If a pulse is desired, click on the applicable check box. The pulse width is 
based on OUT01 clock period.

Figure 14. Configure MRSYNC and MRFRSYNC

8.

Connecting to the Board

. Configurations can be done before making the USB/I

2

C connection to the board. Or, 

connecting with the board can be established before configuring. It's recommended to complete initial configurations 
before making a USB/I

2

C connection to the board and write registers into the chip. 

Note:

 after the board connection is 

established, any changes to the settings will be automatically written to the respective registers. Follow the steps below 
in 

Figure 15

 to make a connection to the board.

Содержание 82P33714

Страница 1: ...hich OUT1 2 7 8 9 10 are single ended outputs OUT3 4 5 6 are differential outputs MFR_2K_1PPS and MFR_8K_1PPS are single ended outputs providing 2KHz and 8KHz frame sync signals respectively USB conne...

Страница 2: ...clocks will be disqualified invalid Please note there are other criteria for an input clock to be invalid I2 C address bits I2C_AD 2 1 sets the lower 3 bit address of 7 bit I2C address with the least...

Страница 3: ...r communicating with the PC running Timing Commander It is not used to provide any power source for the board When plugged in to the PC s USB port a green LED is lit Connecting the Board Other than in...

Страница 4: ...nect the board as shown in Figure 2 2 Press HW Reset button on the board to reset the device This may not be necessary if the board is first powered up 3 Start Timing Commander software You will see o...

Страница 5: ...left and 10 outputs are on the right side of the window For Input configuration most frequencies can be entered for IN01 IN6 and they will be automatically configured to be available to both DPLLs Fo...

Страница 6: ...to IN02 10MHz click on the Input Buffer of IN02 the triangle symbol following frequency entry box a sub configuration window for IN02 is shown below In the window IN01 is selected as sync signal Figur...

Страница 7: ...uration There are pull down items for each configuration parameter For example in Operation Mode section you can select Automatic or Free up to force Lock or Free run Different base frequencies can be...

Страница 8: ...elect DPLL s bandwidth and damping factors during start acquisition and locked phases Always use Locked bandwidth damping This option will use the bandwidth and damping factor that are available when...

Страница 9: ...However 19 2MHz and 10MHz based clocks are not supported by the default hardware profiles for the APLLs Therefore APLL1 APLL2 needs to be pre configured to the applicable VCO frequency To configure A...

Страница 10: ...lect custom on DPLL1 as shown in Figure 10 Then click on Customize button and ignore the initial Timing Commander error Enter the values as shown in Figure 12 below Figure 12 Configure APLL2 Parameter...

Страница 11: ...period Figure 14 Configure MRSYNC and MRFRSYNC 8 Connecting to the Board Configurations can be done before making the USB I2 C connection to the board Or connecting with the board can be established b...

Страница 12: ...G 8263 to configure the DPLL for PEC S F which occurs when typically a IEEE 1588 algorithm is controlling the DCO with frequency offsets G 8273 2 to configure the DPLL for T BC Telecom Boundary Clock...

Страница 13: ...The PLL operation status can be updated and viewed by clicking View Status button in GUI window The status window looks like the following Figure 17 Enabled input reference clock will show with a lit...

Страница 14: ...14 REVISION A 09 15 14 82P33714 33814 EVALUATION BOARD Figure 17 DPLL Status Window...

Страница 15: ...REVISION A 09 15 14 15 82P33714 33814EVALUATIONBOARD Board Schematics Figure 18 82P33x14 Evaluation Board Schematics Page 1 Block Diagram...

Страница 16: ...16 REVISION A 09 15 14 82P33714 33814 EVALUATION BOARD Figure 19 82P33x14 Evaluation Board Schematics Page 2 Reference Selection...

Страница 17: ...REVISION A 09 15 14 17 82P33714 33814EVALUATIONBOARD Figure 20 82P33x14 Evaluation Board Schematics Page 3 I O Termination...

Страница 18: ...18 REVISION A 09 15 14 82P33714 33814 EVALUATION BOARD Figure 21 82P33x14 Evaluation Board Schematics Page 4 I2C EEPROM...

Страница 19: ...REVISION A 09 15 14 19 82P33714 33814EVALUATIONBOARD Figure 22 82P33x14 Evaluation Board Schematics Page 5 Power Supply 1...

Страница 20: ...20 REVISION A 09 15 14 82P33714 33814 EVALUATION BOARD Figure 23 82P33x14 Evaluation Board Schematics Page 6 Power Supply 2...

Страница 21: ...sented only as a guide and does not convey any license under intellectual property rights of IDT or any third parties IDT s products are not intended for use in applications involving extreme environm...

Страница 22: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information IDT Integrated Device Technology 82EBP33814...

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