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YTsujio
Level 1
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First solution authored 5 replies posted 10 sign-ins

We are considering using CY27410 with the following specifications.
In the case of the following specifications, can it be realized by using one CY27410? Or do you need two?

If it is feasible with one use, please advise about the setting value at that time.

Used as an 11-output clock generator.
Output 1. 156.25MHz LVDS
Output 2. 156.25MHz LVDS
Output 3. 26MHz LVDS
Output 4. 27MHz LVDS
Output 5. 100MHz LVDS
Output 6. 100MHz LVDS
Output 7. 100MHz LVDS
Output 8. 125MHz LVDS
Output 9. 24MHz LVCMOS 1.8V
Output 10. 25MHz LVCMOS 3.3V
Output 11. 25MHz LVCMOS 3.3V

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1 Solution
PradiptaB_11
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500 replies posted 250 solutions authored 250 replies posted

Hi @YTsujio ,

The I2C address value will be same (105 decimal) whether you use 7bit or 8bit addressing mode.

Thanks,

Pradipta.

View solution in original post

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6 Replies
PradiptaB_11
Moderator
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500 replies posted 250 solutions authored 250 replies posted

Hi @YTsujio ,

Can you also list the input frequency to be used for this setting so that we can check the feasibility.

Thanks,

Pradipta.

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Hi. @PradiptaB_11 

The input frequency is considered as follows.
Connect a crystal oscillator (27MHz or 25MHz) only to XIN and XOUT,
IN1 and IN2 are not connected.

Please give me some advice.

 

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Hi. @PradiptaB_11

I have the following additional questions.

(1) . If I don't use the VCXO feature, can the VIN be open?

(2) . If IN1N, IN1P, IN2N, IN2P are not used, can each pin be open?

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PradiptaB_11
Moderator
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500 replies posted 250 solutions authored 250 replies posted

Hi @YTsujio ,

I am attaching a Clock Wizard 2.2 project below. You can check the project and settings which can be used for your application. 

To answer your other queries the other input pins can be left open and the VIN pin has to connected to GND or VDD if VCXO is not used. 

 

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Hi. @PradiptaB_11

Thank you for your answer.
I checked the attached file and confirmed that there was no problem.

I also understood how to handle unused pins.

I have another question.
Will the default value of the I2C slave address be 105 (decimal) with a 7-bit address?

BR.YTsujio

 

 

 

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PradiptaB_11
Moderator
Moderator
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500 replies posted 250 solutions authored 250 replies posted

Hi @YTsujio ,

The I2C address value will be same (105 decimal) whether you use 7bit or 8bit addressing mode.

Thanks,

Pradipta.

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