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| NTE832 & NTE832SM Integrated Circuit Tone Decoder 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: D Logic Compatible Output with 100mA Current Sinking Capability D Bandwidth Adjustment from 0 to 14% D Inherent Immunity to False Signals D High Stable Center Frequency D High Rejection of Out-Of-Band Signals and Noise D Center Frequency Adjustable from 0.01Hz to 500kHz D Frequecny Range Adjustable over 20:1 range by an External Resistor D Available in Standard 8-Lead DIP (NTE832) and Surface Mount SOIC-8 (NTE832SM) Applications: D Touch Tone Decoder D Precision Oscillator D Frequency Monitoring and Control D Wide Band FSK Demodulation D Communications Paging Decoders D Carrier Current Remote Controls D Ultrasonic Controls (Remote TV, etc.) Absolute Maximum Ratings: Operating Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10V to VCC +0.5V Output Voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Note 1. The maximum junction temperature of these devices is +100C. For operating at elevated temperatures, devices must be derated on a thermal resistance of +187C/W, junction-to-ambient. Electrical Characteristics: (VCC = 5V, TA = +25C, unless otherwise specified) Parameter Power Supply Voltage Power Supply Current, Quiescent Power Supply Current, Activated Quiescent Power Dissipation Input Resistance Smallest Detectable Input Voltage Largest No Output Input Voltage Largest Simultaneous Outband Signal to Inband Signal Ratio Minimum Input Signal to Widband Noise Ratio Largest Detection Bandwidth Largest Detection Bandwidth Skew Largest Detection Bandwidth with Variation with Temperature Largest Detection bandwidth with Variation with Supply Voltage Highest Center Frequency Center Frequency Stability Center Frequency Shift with Supply Voltage Fastest ON-OFF Cycling Rate Output Leakage Current Output Saturation Voltage Output Fall Time Output Rise Time V8 = 15V ei = 25mV, I8 = 30mA ei = 25mV, I8 = 100mA 4.75V to 6.75V RL = 20k 0 < TA , +70C -55 < TA < +125C 4.75V to 6.75V IL = 100mA, fi = fo IC = 100mA, fi = fo RL = 20k Bn = 140kHz RL = 20k Test Conditions Min 4.75 - - - 15 - 10 - - 10 - - - 100 - - - - - - - - - Typ 5.00 7 12 35 20 20 15 +6 -6 14 2 0.1 1 500 3560 35140 0.4 fo/20 0.01 0.2 0.6 30 150 Max 9.00 10 15 - 25 25 - - - 18 3 0.5 5 - - - 2.0 - 25.0 0.4 1.0 - - A V V ns ns Unit V mA mA mW k mVrms mVrms dB dB % of fo % of fo %/C %/V kHz ppm/C ppm/C %/V Pin Connection Diagram Output Filter Loop Filter Input VCC 1 2 3 4 8 7 6 5 Output GND Timing Capacitor Timing Resistor NTE832 (8-Lead DIP) 8 5 .260 (6.6) 1 4 .390 (9.9) Max .155 (3.93) .300 (7.62) .100 (2.54) .300 (7.62) .145 (3.68) NTE832SM (SOIC-8) .192 (4.9) 8 5 .154 (3.91) .236 (5.99) 1 4 .050 (1.27) 016 (.406) .198 (5.03) 061 (1.53) .006 (.152) NOTE: Pin1 on Beveled Edge |
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