Continue to Site

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.

Register Log in

How to understand: balanced modulator in phase quadrature?

Status
Not open for further replies.
H

heartfree

Advanced Member level 4
Joined
Oct 31, 2004
Messages
100
Helped
3
Reputation
8
Reaction score
2
Trophy points
1,298
Activity points
738
About Color modulation

"I and Q are used to modulate a 3.58MHz color subcarrier using two balanced
modulator operating in phase quadrature : one modulator is driven by the
subcarrier at sine phase ,the other modulator is driven by the subcarrier at cosine
phase "
My question is how to undertand "balaned modulatro operating in phase quadrature"?
Thanks a lot :)
 

Re: About Color modulation

It is your quote :)
one modulator is driven by the
subcarrier at sine phase ,the other modulator is driven by the subcarrier at cosine
phase
Click to expand...

You hqve two modulators one is fed directly by carrier, other with carrier sihted at 90 degrees( pi/2 radians)

Look here **broken link removed**
 

About Color modulation

Thanks Moss.
I had little knowledge about Signal & System.
It's really hard for me understand the modulation theory.
But it's ok, I just need to implement it in Verilog, Don't care why it is that.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top