COM4LAB Protoboard, set FM-radio
Article not yet available!
Description
The Radio Receiver Set is a supplement to the COM4LAB Protoboard III for the hands-on construction of an FM radio. The experiments progress from the basics of individual components to a complete superheterodyne receiver. The central component is the TDA7088 receiver IC, which converts the received signals to an unusually low intermediate frequency of about 70 kHz and therefore requires no aligned coils; station tuning is performed by a capacitance (varactor) diode and audio amplification by an LM386. The breadboard, LEDs and potentiometers are provided by the Protoboard. Together with the COM4LAB Master Unit, all signal stages can be made visible with the oscilloscope and multimeter and faults investigated systematically.
Topics:
1. Assembly and circuit
2. Loudspeaker and sound
3. Capacitors
4. Audio amplifier
5. Tone generator
6. FM reception and sound
7. Station tuning and fine tuning
8. Volume and receiver circuit
Scope of delivery
Radio-specific components; the breadboard, LEDs, potentiometers and the power supply are provided by the Protoboard / COM4LAB Master Unit and are not included here. The exact scope of delivery including quantities must be checked against the kit's packing list.
- FM receiver module (radio board) with TDA7088 (16-pin SMD IC)
- Capacitance (varactor) diode for station tuning
- LM386 audio amplifier IC (8-pin)
- 100 µF electrolytic capacitor
- 100 nF ceramic capacitor (marked 104)
- 1 kΩ resistor plus further resistors and capacitors
- Loudspeaker with soldered connection wires
- Antenna wire
- Connecting / jumper wires
