Summary
Proximity Detector Rev. 3/11/99
Description
The CS209A is a bipolar monolithic integrated circuit for use in metal detection/proximity sensing applications. The IC (see block diagram) contains two on-chip current regulators, oscillator and low-level feedback circuitry, peak detection/demodulation circuit, a comparator and two complementary output stages.
Source title
CS209A Datasheet(PDF) - Cherry Semiconductor Corporation