Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

What do you get when you add the quadrature outputs of an AD9854

Status
Not open for further replies.

jobattle

Newbie level 5
Joined
Feb 11, 2010
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
pasadena, ca
Activity points
1,361
It occurred to me that adding the two quadrature outputs of a DDS like the AD9854 might result in an output without the image frequency component, thereby making the filtering much less critical.

In other words, with F0=100MHz, and an output set to F1, say 10 MHz, the image at F0-F1 would be cancelled out if I added the real and quadrature outputs, ignoring phase errors, etc.

Is this true?
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top