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.

Frequency synthesizer - Frequency Multiplier- Difference?

Status
Not open for further replies.

gayu

Junior Member level 3
Joined
Aug 9, 2005
Messages
30
Helped
1
Reputation
2
Reaction score
0
Trophy points
1,286
Location
Florida, US
Activity points
1,562
Both Frequency synthesizer - Frequency Multiplier can be incorporated using PLL.What is the difference between the two both functionally and in construction part of it.

GD
 

boy

Advanced Member level 1
Joined
Sep 30, 2002
Messages
481
Helped
96
Reputation
192
Reaction score
55
Trophy points
1,308
Location
Thailand
Activity points
3,963
Frequency multiplier is a non-linear circuit. It utilizes harmonic for generating other frequencies. The output would be f = 2f0, 3f0 etc. that is the hamornic of the fundanetal. PLL generates frequency using a VCO.
 

No one

Full Member level 5
Joined
May 11, 2005
Messages
287
Helped
4
Reputation
8
Reaction score
2
Trophy points
1,298
Activity points
3,425
Re: Frequency synthesizer - Frequency Multiplier- Difference

boy wrote:
Frequency multiplier is a non-linear circuit. It utilizes harmonic for generating other frequencies. The output would be f = 2f0, 3f0 etc. that is the hamornic of the fundanetal. PLL generates frequency using a VCO.

Do you say that the PLL is linear?
 

throwaway18

Advanced Member level 2
Joined
Jun 9, 2005
Messages
594
Helped
101
Reputation
202
Reaction score
24
Trophy points
1,298
Location
Kent, UK
Activity points
8,347
In a PLL frequency synthersizer the relationship between the n value that the VSO output is divided by and the output frequency will be linear over the range of frequencys that the VCO cna produce.

Other relationships such as VCO control voltage to frequency are often not linear.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top