Part Number: LMK04828 Hi, Datasheet says register address 0x117, field DCLKoutX_FMT---LVPECL 1600mV and LVPECL. What is the difference between the two? I am trying reducing the output swing from LMK for LVPECL outputs. Thanks, Abhijit
Nan,
Selection of ferrite bead is less about blocking specific frequencies than about covering the gap created between the internal LDO response, reasonable bypass capacitance values, and the on-chip bypassing frequency response. LDOs begin dwindling…
Part Number: LMK04828 Hi sir,
In our design, we are using LMK04828 CLK Synthesizer to provide a clocks for RF-ADC & RF-DAC in RFSoC. Single LMK device with SYSREF as Feedback with Nested Dual Loopback.
LMK INPUT :
TCXO: 10MHz LVCMOS (CLKIN 0)
VCXO…
Part Number: LMK04828
Is it possible to output 1.2GHz LVDS clock with 1.2GHz LVDS clock input in distribution mode?( See 9.4.5 on page 55 of the datasheet)
At this time, does SYSREF also output?
Can I do the above actions if I input only the CLKin/Fin…
Part Number: LMK04828 Our system could drive the LVDS clock into the PLL clock input pins (pins 34/35 – CLKin1) while the part is unpowered. Our design is AC coupled, but even the 400mV of AC on LVDS violates the absolute max ratings for the part…
Hi Gil,
Apologies for the delay... we had some E2E backend updates that mixed up assignments.
Gil Hershman71 said: So, are we out of danger here?
Sounds like yes to me.
Gil Hershman71 said: 2. If we still decide to add a PU/PD on both inputs, what is the…
Ashwini,
To be clear, LMK04828 has no nonvolatile memory. It must be programmed by some microcontroller/FPGA/etc every power cycle. Resetting or power-cycling the device will revert programming to POR defaults.
Additionally, TICS Pro isn't strictly necessary…
Part Number: LMK04828 Hello Guys,
Good day.
According to our customer single-ended AC coupled inputs in the LMK04828 evaluation module (SNAU145B-May 2013 - Revised march 2018) uses the negative input for OSCin_N and CLKin_N instead of the positive leg…
Part Number: LMK04828 Other Parts Discussed in Thread: LMK04832 Hi team,
I got question from customer.
DCLK channel output of LVPECL 1600 format waveform, the output of the actual waveform swing is only more than 100 mV.
Please help with the analysis…
Part Number: LMK04828 Hi team,
OSCIN input 192MHZ, PLL2 multiplier to 3072MHZ, split output 192MHZ, internal VCO1 used, output frequency inaccurate. What could be the possible cause?
It was later discovered that the fPD2 can only be up to 155MHz, is the…
