In message <3.0.2.32.19970924213740.0084cb30@postoffice2.mail.cornell.ed
u>, Sean Breheny <shb7@CORNELL.EDU> writes
>At 09:26 AM 9/24/97 +0100, you wrote:
><snip>
>>(they are cheap, anyway). A better solution might be one of the DDS
>>chips controlled by the PIC. The Analog Devices ones are really intended
>>for HF, and are probably overkill in your application (they would work,
><snip>
>>Leon
>
>Leon or someone,
>
>Could you please tell me a company who makes HF DDS chips?
>
>Thanks,
>Sean
>

Analog Devices is the main one, there's also Qualcomm. Look for the
AD9850 on the ADI web site:

        http://www.analog.com

It's a new 125 MHz DDS chip. The older AD7008 (50 MHz) is easier to get
hold of, and has been used by several radio amateurs.

Leon
--
Leon Heller: leon@lfheller.demon.co.uk http://www.lfheller.demon.co.uk
Amateur Radio Callsign G1HSM    Tel: +44 (0) 118 947 1424
See http://www.lfheller.demon.co.uk/rcm.htm for details of a
low-cost reconfigurable computing module using the XC6216 FPGA