TDA7021T FM integrated radio receiver circuit design

Subscribe by email

Using the TDA7021T integrated radio receiver circuit can be designed a very simple high efficiency portable radio receiver circuit fully compatible for applications using the low-voltage micro tuning system (MTS). The TDA7021T has a frequency locked loop (FLL) system with an intermediate frequency of 76 kHz. The selectivity is obtained by active RC filters. The only function to be tuned is the resonant frequency of the oscillator.
Because of the low intermediate frequency, low pass filtering of the MUX signal is required to avoid noise when receiving stereo. 50 kHz roll-off compensation is needed because of the low pass characteristic of the FLL.
For mono application this amplifier can be used to directly drive an earphone. The field-strength detector enables field-strength dependent channel separation control.
With a combination of a low voltage PLL stereo decoder ( TDA7040T ) and a low voltage mono/stereo power amplifier we can build a simple portable radio .
For this radio receiver circuit we need a 5V dc power supply .

Circuit Diagram: 
TDA7021T FM integrated radio receiver circuit design

Comments

Post new comment

The content of this field is kept private and will not be shown publicly.
CAPTCHA
This question is for testing whether you are a human visitor and to prevent automated spam submissions.
Image CAPTCHA
Enter the characters shown in the image.

Circuit Diagram
Car tracking device circuit diagram
car tracking device circuit diagram transmitter
car tracking device circuit diagram receiver

This car tracking device can be used to locate car in a parking or other objects and is made up...

TV audio video transmitter circuit design project TV audio video transmitter circuit design schematic

A very simple TV audio video transmitter circuit can be designed using this schematic diagram ....

Long wave radio and medium wave radio receiver using TBA120 Long wave radio and medium wave radio receiver using TBA120

Using electronic circuit diagram can b designed a very simple long wave radio and medium wave...

AF2310 radio controlled motor circuit design project
AF2310 radio controlled motor circuit design project receiver schematic
AF2310 radio controlled motor circuit design project transmitter schematic

This circuit is very similar with a car radio controlled toy with seven control functions:...

LM1800 FM Stereo Demodulator circuit design electronic project LM1800 FM Stereo Demodulator circuit design electronic project

This FM Stereo Demodulator circuit that use phased lock loop techniques to regenerate the 38kHz...

TDA7338 FM stereo decoder circuit TDA7338 FM stereo decoder circuit design schematic

This compact design FM stereo decoder circuit is designed using the TDA7388 IC manufactured by...

VHF UHF Low-Noise amplifiers using MAX2664 MAX2665 VHF UHF Low-Noise amplifiers using MAX2664 MAX2665

A very simple VHF UHF Low-Noise amplifiers circuit can be designed using the MAX2664 and MAX2665...

Radio receiver circuit for long and medium wave Radio receiver circuit for long and medium wave

This simple radio receiver circuit for long and medium wave range (depending on mounted...

300m FM transmitter circuit design project 300m FM transmitter circuit design project

This fm transmitter circuit is very simple and it has a acceptable transmission . The signal...