High baud rate chips for RS232 protocol

Do you have a question? Post it now! No Registration Necessary

Translate This Thread From English to

Threaded View
Hello all,

I am interested in designing a custom board with serial interface and I
am searching for RS232 port driver ICs which can support baud rates
higher than 230kbps.

There are many PCI or USB to serial interface options available which
support bauds of upto 920kbps. I have designed a UART interface in FPGA
but need higher baud rate driver ics to actaully get the performance I
require.

Any recommendations?

Thanks

Mak


Re: High baud rate chips for RS232 protocol

Quoted text here. Click to load it

Use RS422 or RS485. This tranceivers support up to 10 Mbit/s. Much more
recommended than RS232 (differential, lower voltage swing, EMC etc.)

Regards
Falk




Re: High baud rate chips for RS232 protocol

Quoted text here. Click to load it

Or if you want to go even faster use LVDS.

Slurp



Re: High baud rate chips for RS232 protocol
Quoted text here. Click to load it

I think you are asking about the level translators ?
You have tried the usual suspects at Maxim and Linear ?
You might also want a 3.3V supply interface device.

http://www.maxim-ic.com/Interface.cfm
shows 150 devices under "RS-232 Line Driver/Receivers"

-jg


Re: High baud rate chips for RS232 protocol

Jim Granville skrev:

Quoted text here. Click to load it

If you follow the rs-232 spec you can't go above ~115.2Kbit, to go
above that you need a level translator that supports higher speeds,
usually
with an extra pin that enables a higher slew rate    

-Lasse


Re: High baud rate chips for RS232 protocol
You will find 1M baud devices in the sipex web site.  Just don't expect more
than a few meters.
I think the suggestion of using a differential driver is best.

Simon

Quoted text here. Click to load it
I
FPGA



Re: High baud rate chips for RS232 protocol

Quoted text here. Click to load it

Yes, use the FT232 RS232 to USB converter for a desktop application.
The cable then is USB and the baudrates reach 1Mbit.

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net

Site Timeline