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.)