• State
  • Replies 1 reply
  • Subscribers 23 subscribers
  • Views 34 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

LMK61E08: Regarding Clock Inputs

Bhuvaneshwari K
Intellectual 260 points
Part Number: LMK61E08
Other Parts Discussed in Thread: ADS5409

Tool/software:

Hi ,

We are going to use this LMK61E08-SIAR part in our design.

1.If needed to configure this Oscillator as LVPECL output and LVDS output what will be termination resistors and capacitor if the output is connected to the ADC(ADS5409).

2.How can we program this Oscillator.

3.Do we need to connect the SCL, SDA lines to FPGA.

Thanks and Regards,

Bhuvaneshwari

  • 0
    TI__Prodigy 80 points

    Hi,

    1.) You can have ac couple to the receiver. The LVDS output structure has integrated 125 Ω termination between each side (P and N) of the differential pair. so no additional termination needed. LVPECL you'd need 150Ohm to gnd termination for both P and N channels.

    2.) you can use Ticspro tool (can be downloaded from TI.com) clock and timing products portal. Programming section is covered in section 8.5, starting page 22 in datasheet.

    3. These are I2C pins for communication and programming and yes it can be connected to FPGA I2C bus for programming.