The TDA7000 is a Philips integrated circuit that contains a complete FM receiver with the need for only two external coils and has no adjustments other than tuning. The FL is 70 kHz which does not require the use of external coils and the sound quality is excellent, although the pass-through audio track prevents the use of decoders. The circuit we propose can serve as the basis for an excellent quality pocket FM receiver by connecting the audio output on a small amplifier such as the TDA7050 or TBA8208. The coil L1 is formed by 3 turns of 22 AWG wire in 0.5 cm form without core, while L2 is formed by 15 turns of 22 or 24 AWG wire in form of 0.5 cm in diameter without core.
| Clique na imagem para ampliar |
