Hi TI expert,
When we use the lmk04828, the clkin_sel0 and clkin_sel1 are configured to 0x1(CLKinX_LOS), the clkin_sel0_type
and he clkin_sel1_type are configured to output(push-pull ),
Are CLKin0_LOS and CLKin1_LOS refer to the loss of pll1 input refrence clk?
1: loss of input reference clk
0: input reference clk absence
Now, the clkin0 is 10MHz , clkin1 is not connected
But outputs of the pins of both clkin_sel0 and clkin_sel1 are low level.
Is this right?
Hi Derek Payne,
Thank you for your timly reply of the question about LMK04828!
After we changed CLKin0_TYPE from 0 to 1(Bipolar to MOS), the output of pin of CLKin_sel is high,
which can indicate the loss of CLKin0。
Another question, as the datasheet description in page of 69 and 10.
In my opinion, MOS is only valid for single-ended clkin
Bipolar is valid for differentital clkin
(1)Am i right?
However, from the following screenshot, we can see both Bipolar and MOS is valid for CLKin
(2) How to understand the description of Table 37
"When using CMOS, CLKinX and CLKinX maybe AC or DC coupled if the input signal "?
(3) In out design, the clkin1 is lvds and ac couple ,
if we want to monitor the loss of clkin1(the output of clk,in_sel high level indicate the loss of clkin1)
should we change the CLKin1_TYPE to MOS?
