Saturday, February 19, 2011

Ta7378P FM wireless microphone circuit


TA7378P using FM radio integrated block the production of FM wireless microphone, external components small, simple and easy system, work stability, particularly suitable for the production of radio enthusiasts. Figure FM wireless microphone for the specific circuit, ICl (TA7378P) includes RF amplifiers, mixers, to enlarge the buffer, the local oscillator circuit and bias, the regulator circuit.

The circuit Qiaomiaodejiang combination of internal circuits, use of the circuit-and AFC (automatic frequency control) the use of a variable capacitor oscillator circuit to generate FM (FM) waves.

In order to reduce the impact of external, in the oscillation between the mixer and a buffer amplifier has. Finally, RF amplifiers zoom through launch FM radio antenna.

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