CDCE62005: new design recommendation.

erez cohen

Intellectual 595 points

Part Number: CDCE62005
Other Parts Discussed in Thread: TMS320C6678, , LMK00301, CDCM6208, LMK03328

Hello,

on my design i need to support the following frequencies:

1. 100MHz PECL x2

2. 66.67 HCSL

It seem the CDC62005 comply my requirement. is this device recommended for new designs?

thanks,

Erez.

over 4 years ago

0 erez cohen over 4 years ago

Intellectual 595 points

Hello,

I would like to give some more details regarding my application.

On my design i am going to use up to 9 TMS320C6678.

each device requires:

1. 100MHz LVPECL x2

2. 66.67MHz HCSL

what is your recommended solution for that case?

Thanks,

Erez.

0 Shawn Han over 4 years ago in reply to erez cohen

TI__Genius 9920 points

CDCE62005 --- > 100MHz LVPECL x2 + 66.67MHz LVPECL x1 --- > 1:10 Buffer LMK00301 x3 (2 units for 100 MHz LVPECL fanout, 1units for 66.67 MHz HCSL fanout)

0 erez cohen over 4 years ago in reply to Shawn Han

Intellectual 595 points

Hello,

Thanks for your prompt reply!

it seem the SGMII clk on my design need to be 312.5MHz instead of 100MHz.

Do you have a solution that can generate 100,66.667 and 312.5MHz on the same device?

As i see the CDC62005 can not do it.

Thanks,

Erez.

0 Shawn Han over 4 years ago in reply to erez cohen

TI__Genius 9920 points

CDCM6208 (No EEPROM)

LMK03328 (with EEPROM)

0 erez cohen over 4 years ago in reply to Shawn Han

Intellectual 595 points

Hi,

your solution is two components. Right?

is there single device solution?

thanks,

Erez.

0 Shawn Han over 4 years ago in reply to erez cohen

TI__Genius 9920 points

One component solution:

CDCM6208 (No EEPROM)

LMK03328 (with EEPROM)

0 erez cohen over 4 years ago in reply to Shawn Han

Intellectual 595 points

Thanks for that!

Clock & timing

Clock & timing forum

CDCE62005: new design recommendation.