[hpsdr] Dumb question - HPSDR sound card

Wed Apr 4 10:23:15 PDT 2007

Along the lines of ARM processors, Analog Devices builds one with a DDS.

The ADU7128
http://www.analog.com/en/prod/0,2877,ADuC7128,00.html

-----Original Message-----
From: hpsdr-bounces at hpsdr.org [mailto:hpsdr-bounces at hpsdr.org] On Behalf
Of Lyle Johnson
Sent: Wednesday, April 04, 2007 12:20 PM
To: Philip Covington
Cc: High Performance Software Defined Radio Discussion List
Subject: Re: [hpsdr] Dumb question - HPSDR sound card

***** High Performance Software Defined Radio Discussion List *****

> You probably could do something like this (for the target price) with
> the TI TLV320AIC23B CODEC:
> 
> <http://focus.ti.com/docs/prod/folders/print/tlv320aic23b.html>
> 
> and an Altera EPM240 CPLD + Cypress CY7C68013A "FX2" USB
microcontroller.

Or an STM STR7 or STR9.  These are Flash-based ARM CPus with USB (and 
Ethernet :-) support.  STM provides free software libraries and demos 
using this as a USB audio streaming device for input and output.  Use a 
CPLD like a Xilinx XCR3032 or similar (even cheaper than the Altera 
EPM240 since cost seems to be a driver here) and you're on your way...

Sounds like a fun project, Terry!

73,

Lyle KK7P

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