Low speed Clock and Data Recovery

Hi, all

I am designing a optical receiver with 2 Mbps.

However, I could not find an Clock and data recovery (CDR) in that speed, and also CDR consumes a lot of power.

Therefore, I am trying to find a clocked comparator to perform the function of the CDR, since the continues comparator will change the duty cycle of my output.

So, the question is
1 Is there some low power and low speed CDR in the market?
2 Should a clocked comparator work? (a comparator with latch?) where can I find it ?

I put my design in the attached, you can find that the continues comparator changes the duty cycle of the signal.

Thanks all

Hi,

maybe it is possible to transmit UART styte. Then no clock recovery is needed, but known and fix baudrate.
Or transmit like IRDA ...

Klaus

Is it expecting too much if we ask for a readable document describing your problem?

have not played with this stuff for a while, but i remember doubling the data in frequency, and the clock was easily found then.