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.

Function generator using TV Tuner

Status
Not open for further replies.

Abu Ammora

Full Member level 2
Joined
Jun 13, 2005
Messages
135
Helped
5
Reputation
10
Reaction score
2
Trophy points
1,298
Location
East Coast
Activity points
2,482
Is it possible yo build Function generators operates up to 100 MHZ and give Sine , Square and Triangle using TV Tuner , Can that practically implemented and work ?

I want advice , Thanks !
 

melc

Full Member level 6
Joined
Apr 8, 2005
Messages
391
Helped
55
Reputation
110
Reaction score
9
Trophy points
1,298
Activity points
3,595
A TV tuner have only syntetizable sinusoidal frequency starting from about 40-50MHz and up to 900Mhz (satelite tuners goes upper). The amplitude is not constant over the entire frequency range. So I quess it's the most complicated way to do it (even if getting the square from sinusoidal is feasable).


Up to 12.5Mhz there are single chip digital frequency sintesizers (sinus, triangle and square) based on DDS. Also there are DDS running up to 100Mhz but only sinus.
Search for DDS at https://www.analog.com.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top