Description:
The NTE832 and NTE832SM are general purpose tone decoders designed to provide a saturated
transistor switch to GND when an input signal is present within the passband. The circuit consists
of an I and Q detector driven by a voltage controlled oscillator which determines the center frequency of the decoder. External components are used to independently set center frequency, bandwidth, and output delay.
Features:
Logic Compatible Output with 100mA Current Sinking Capability
Bandwidth Adjustment from 0 to 14%
Inherent Immunity to False Signals
High Stable Center Frequency
High Rejection of Out–Of–Band Signals and Noise
Center Frequency Adjustable from 0.01Hz to 500kHz
Frequecny Range Adjustable over 20:1 range by an External Resistor
Available in Standard 8–Lead DIP (NTE832) and Surface Mount SOIC–8 (NTE832
Applications:
Touch Tone Decoder
Precision Oscillator
Frequency Monitoring and Control
Wide Band FSK Demodulation
Communications Paging Decoders
Carrier Current Remote Controls
Ultrasonic Controls (Remote TV, etc.)
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