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CS209AYDR8

器件名称: CS209AYDR8
功能描述: Proximity Detector
文件大小: 166.39KB    共6页
生产厂商: CHERRY
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简  介:CS209A CS209A Proximity Detector 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. The oscillator, along with an external LC network, provides controlled oscillations where amplitude is highly dependent on the Q of the LC tank. During low Q conditions, a variable low-level feedback circuit provides drive to maintain oscillation. The peak demodulator senses the negative portion of the oscillator envelop and provides a demodulated waveform as input to the comparator. The comparator sets the states of the complementary outputs by comparing the input from the demodulator to an internal reference. External loads are required for the output pins. A transient suppression circuit is included to absorb negative transients at the tank circuit terminal. Features s Separate Current Regulator for Oscillator s Negative Transient Suppression s Variable Low-Level Feedback s Improved Performance over Temperature s 6mA Supply Current Consumption at VCC = 12V s Output Current Sink Capability 20mA at 4VCC 100mA at 24VCC Absolute Maximum Ratings Supply Voltage ................................................................................................24V Power Dissipation (TA = 125C).....................................……
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CS209AYDR8 Proximity Detector ONSEMI
CS209AYDR8 Proximity Detector CHERRY
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