MC34940: Proximity Sensor

The MC34940 is intended for cost-sensitive applications where non-contact sensing of objects is desired. When connected to external electrodes, an electric field is created. The MC34940 detects objects in this electric field. The IC generates a low-frequency sine wave, which is adjustable by using an external resistor and is optimized for 120 kHz. The sine wave has very low harmonic content to reduce harmonic interference. The MC34940 also contains support circuits for a Microcontroller unit (MCU) to allow the construction of a two-chip E-field system.
By Freescale Semiconductor, Inc
MC34940 's PackagesMC34940 's pdf datasheet

MC34940 Pinout, Pinouts
MC34940 pinout,Pin out
This is one package pinout of MC34940,If you need more pinouts please download MC34940's pdf datasheet.

MC34940 Application circuits
MC34940 circuits
This is one application circuit of MC34940,If you need more circuits,please download MC34940's pdf datasheet.

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