A microphone structure comprising a microphone (M) and an electro-static discharge
protector (ZD) placed close to microphone capsule (300), preferably inside
it. Further the structure comprises within the microphone capsule an e.g. ladder-type
filter having parallel capacitors (C31, C32, C33) and series
resistors or coils (R31, Z) protecting the microphone from radio frequency
disturbances. Structure parts may be on same circuit board or in same integrated
circuit (IC). Structure is less susceptible to RF disturbances than known structures
and its production costs are lower.
