Prev: Version of Xilinx ISE for Spartan 6 FPGAs
Next: Maximum output rate
From: Randy Yates on 27 Mar 2010 17:37
-jg <jim.granville(a)gmail.com> writes:

> On Mar 28, 2:07 am, Randy Yates <ya...(a)ieee.org> wrote:
>>
>> It's a SOQPSK modulator, so the input data is 2 bits per baud. OK,
>> that takes 2 bits. The output is 14-bit I/Q. Ok, thats total 30 bits.
>> Add a few for control. Done.
>
> You still have not stated the actual IP and OP data rates, and the
> maths-ops needed per delivered output.

20 Mb/s input (2 bit samples, at 10 Mb/s), 80 M 14-bit samples/s output
each for I and Q.

> Will you be using BGA, or is this QFP and maybe single-row QFN ?

Prefer to avoid BGA.
--
Randy Yates % "Maybe one day I'll feel her cold embrace,
Digital Signal Labs % and kiss her interface,
mailto://yates(a)ieee.org % til then, I'll leave her alone."
http://www.digitalsignallabs.com % 'Yours Truly, 2095', *Time*, ELO
First  |  Prev  | 
Pages: 1 2 3 4
Prev: Version of Xilinx ISE for Spartan 6 FPGAs
Next: Maximum output rate