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Thread: Signal generators - Agilent 33220A or Tek AFG3021B?
www.piclist.com/techref/index.htm?key=signal+generators
face picon face BY : Sean Breheny email (remove spam text)



Dave is correct. ADI makes several DDS ICs which can very easily do
AM, FM, and PM simultaneously. They do AM using a mutiplying DAC which
is referenced off the output of another DAC. Some can also do FSK,
BPSK, and ASK directly (i.e., you configure the chip and then you can
just feed in a serial data stream on one pin and it modulates it).
Some also can automatically do frequency sweeps (i.e., let's say you
need to sweep frequency faster and smoother than you can do via the
control interface - you can program it to sweep linearly from freq A
to freq B over time interval T, and then trigger it and it will
execute it). They can pretty much do any type of signal generation you
want.

I've used the AD9852 with great results.

Sean


On Mon, Jul 14, 2008 at 4:55 PM, Dave Tweed <pic@spam@spamRemoveMEdtweed.com> wrote:
{Quote hidden}

> -
<e726f69f0807151145u8e1f9c2o783e217b1bcbfd83@mail.gmail.com> 7bit

In reply to: <E1KIV5R-0001yH-J6@elasmtp-mealy.atl.sa.earthlink.net>
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Subject (change) Signal generators - Agilent 33220A or Tek AFG3021B?

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