The NE602 is a low-power VHF monolithic double-balanced mixer with input amplifier, on-board oscillator, and voltage regulator. It is intended for high performance, low power communication systems. The guaranteed parameters of the SA602A make this device particularly well suited for cellular radio applications. The mixer is a Gilbert cell multiplier configuration which typically provides 18dB of gain at 45MHz. The oscillator will operate to 200MHz. It can be configured as a crystal oscillator, a tuned tank oscillator, or a buffer for an external LO. For higher frequencies the LO input may be externally driven. The noise figure at 45MHz is typically less than 5dB. The gain, intercept performance, low-power and noise characteristics make the SA602A a superior choice for high-performance battery operated equipment. The later NE612 or SA612 is an improved pin for pin equivalent.

WWW.ELECTRONICS-TUTORIALS.COM


Please visit VK2TIP's Book Shelf. My personal recommendations, thanks.

LAST MODIFIED:
Sunday, 23-Jun-2013 12:55:31 PDT

NE602 or NE612 OSCILLATOR CIRCUITS


 

Authored by Ian C. Purdie VK2TIP

Find us on Google+

 

Share

     

Why different NE602 or NE612 Oscillator Circuits?

I am particularly indebted to Philips Components and Semiconductors Australia in part, for their most generous assistance in giving me access to some of the material presented on this page.

Features of the 602 mixer

DATA SHEETS

I'm going to leave the rest to see if anybody actually reads these pages and asks me for some oscillator circuits. This would include both fixed and variable oscillators as well as fixed and variable crystal oscillators - all in the HF region.

Note that up in the VHF region it is almost impractical to design variable oscillators, the drift will kill you. I'd recommend using 3rd or 5th overtone oscillators using crystals, see "Figure 9. Typical Application for Cellular Radio" from the 602 mixer PDF data sheet.

 

Custom Search

 


 

Got a question on this topic?

If you are involved in electronics then consider joining our "electronics Questions and Answers" news group to ask your question there as well as sharing your thorny questions and answers. Help out your colleagues!.

The absolute fastest way to get your question answered and yes, I DO read most posts.

This is a mutual help group with a very professional air about it. I've learn't things. It is an excellent learning resource for lurkers as well as active contributors.

RELATED TOPICS on 602

602 mixer data sheet - (109K) in PDF format.

NE/SA615 Double Balanced Mixer and FM IF System

join our "electronics discussion group"

Bibliography: - Philips Semiconductors - Semiconductors for Wireless Communications 1999 - IC17

Link to this page

NEW! - How to link directly to this page

Want to create a page link to me from your site? It couldn't be easier. No HTML knowledge required; even the technophobes can do it. All you need to do is copy and paste, the following code. All links are greatly appreciated; I sincerely thank you for your support.

Copy and paste the following code for a text link:

<a href="http://www.electronics-tutorials.com/devices/602-oscillator-circuits.htm" target="_top">visit Ian Purdie VK2TIP's "NE602 Oscillator Circuits" Page</a>

and it should appear like this:
visit Ian Purdie VK2TIP's "NE602 Oscillator Circuits" Page

 


 
 
Click image to print out a printer friendly version of this page. print

Looking for more? Visit my site map page:

This site is hosted at WebWizards.Net for better value.



the author Ian C. Purdie, VK2TIP of www.electronics-tutorials.com asserts the moral right to be identified as the author of this web site and all contents herein. Copyright © 2000, all rights reserved. See copying and links. These electronic tutorials are provided for individual private use and the author assumes no liability whatsoever for the application, use, misuse, of any of these projects or electronics tutorials that may result in the direct or indirect damage or loss that comes from these projects or tutorials. All materials are provided for free private and public use.
Commercial use prohibited without prior written permission from www.electronics-tutorials.com.


Copyright © 2003, all rights reserved. URL - http://www.electronics-tutorials.com/devices/602-oscillator-circuits.htm

Updated 11th July, 2003

Contact VK2TIP