[SI-LIST] Re: Bit Error Caused by NOISE

Lianghu,

In addition to the 3.3V supply, is there any other
supplies you can use?  For example, is there a 5.0V
supply you can use to drive a voltage regulator, which in
turn outputs a 3.3V supply for the ATC? 

You'll burn some power and add some parts, but it
is likely to do wonders in isolating the ATC's 3.3V
supply.

Pat

 
> Hello,
> 
> I'm designing a burst mode receiver module for a
> system customer.
> 
> There is a Auotmatic Threshold Controller(ATC) in this
> module. This ATC circuit together with Power NOISE
> cause many many Bit Errors. 
> 
> The problem is that the Power is given by the system 
> board. The noises of VCC(3.3V) and GND(0V) are both
> 500mVp-p! And the minimum sensitive of the ATC is only 
> 10mV.Well, the bit errors occur.
> 
> Furthermore, the total current is about 500mA.Many
> passive filters will lead to drop of VCC.
> 
> Any suggestion?
> 
> Thanks,
> 
> Lianghu
>
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field

List archives are viewable at:     
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages 
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu

Other related posts: