• Home
  • News
  • Magazine
  • Shop
  • Subscribe now
  • Forum
  • Service

Search

Products

My Elektor

Log in

Email:

Password:

Remain logged in

Password forgotten?
Register

Shopping cart Shopping cart

Info Elektor Credits: 0

Home › Magazines › 2009 › February › Mini VHF FM Receiver

‹ previous
next ›

Mini VHF FM Receiver

Small in size, big on sound

Published in issue 386, February 2009

Mini VHF FM Receiver
These days tiny FM radios are often integrated in many portable devices such as mobile phones and MP3 players. But why not make a simple receiver ourselves? There are currently several nice ICs available that contain a (nearly) complete receiver. For this project we cast our eye on the TDA7021T from ST-NXP Wireless.

Components

Resistors (SMD 0805)
R1 = 8kO2
R2 = 10kO
R3 = 390O

Capacitors (SMD 0805)
C1,C3 = 10nF
C2,C6,C9,C16 = 100nF
C4 = 33pF
C5 = 25pF trimmer (Murata type TZB4Z250AB10R00)
C7,C10 = 1nF5
C8 = 820pF
C11 = 1nF
C12 = 68pF
C13 = 220pF
C14 = 47µF 10V (Nichicon UWX1A470MCL1GB 5.5mmL chip type)
C15 = 3nF3

Inductors
L1 = 36nH (4 turns 0.5mm silver-plated wire, inside diameter 4mm; length 7mm)
L2 = 1µH, SMD case 0805 (fres > 300 MHz)

Semiconductors
IC1 = TDA7021T (SMD in SO16 case)

Miscellaneous
K1,K2 = 2-way pinheader
BT1 = 2-way pinheader + battery holder for 2-4 AA batteries

Click below to download a PDF copy of this article from Elektor magazine.

 

Downloads 
Article PDF
10 Elektor Credits
PCB PDF
Free download
 

Order this magazine 
Magazine February 2009
UK386 (USD 6.70)
 

Order from Elektor 
PCB, bare
080556-1
Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

Subscribe now

Subscribe now
Subscribe now
Browse online
More

Subscribe to our free
E-weekly Newsletter!

Enter your Email address:

Follow Elektor

      

Act now!

> Become an Elektor Member

> Register for E-weekly

> To Elektor-plus.com

> Become a supporting company

> To FAQs

FAQ

Before submitting questions, review our FAQ section!

Bestseller

Microprocessor Design using Verilog HDL

This book is a practical guide to processor design in the real world. It presents the Verilog HDL in an easily digestible fashion and serves as a thorough introduction about reducing a computer architecture and instruction set to practice. 

More

Package Deals

Elektor Bundles

Check our Package Deals and save money! Discounts up to 19% now available!

More

Price Slashed

Elektor OSPV

This Open Source People Vehicle is perfect for factory halls, warehouses, hospitals, colleges, schools etc.

More

Elektor PCBs at 25% OFF

© 2012 Elektor•Feedback•Media Data•Disclaimer•General conditions•Sitemap•RSS