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LM567C Dataheets PDF



Part Number LM567C
Manufacturers National Semiconductor
Logo National Semiconductor
Description Tone Decoder
Datasheet LM567C DatasheetLM567C Datasheet (PDF)

LM567/LM567C Tone Decoder May 1999 LM567/LM567C Tone Decoder General Description The LM567 and LM567C are general purpose tone decoders designed to provide a saturated transistor switch to ground 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. n n n n High .

  LM567C   LM567C



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LM567/LM567C Tone Decoder May 1999 LM567/LM567C Tone Decoder General Description The LM567 and LM567C are general purpose tone decoders designed to provide a saturated transistor switch to ground 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. n n n n High rejection of out of band signals and noise Immunity to false signals Highly stable center frequency Center frequency adjustable from 0.01 Hz to 500 kHz Applications n n n n n n n Touch tone decoding Precision oscillator Frequency monitoring and control Wide band FSK demodulation Ultrasonic controls Carrier current remote controls Communications paging decoders Features n 20 to 1 frequency range with an external resistor n Logic compatible output with 100 mA current sinking capability n Bandwidth adjustable from 0 to 14% Connection Diagrams Metal Can Package Dual-In-Line and Small Outline Packages DS006975-1 Top View Order Number LM567H or LM567CH See NS Package Number H08C DS006975-2 Top View Order Number LM567CM See NS Package Number M08A Order Number LM567CN See NS Package Number N08E © 1999 National Semiconductor Corporation DS006975 www.national.com Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Pin Power Dissipation (Note 2) V8 V3 V3 Storage Temperature Range 9V 1100 mW 15V −10V V4 + 0.5V −65˚C to +150˚C Operating Temperature Range LM567H −55˚C to +125˚C LM567CH, LM567CM, LM567CN 0˚C to +70˚C Soldering Information Dual-In-Line Package Soldering (10 sec.) 260˚C Small Outline Package Vapor Phase (60 sec.) 215˚C Infrared (15 sec.) 220˚C See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices. Electrical Characteristics AC Test Circuit, TA = 25˚C, V+ = 5V Parameters Power Supply Voltage Range Power Supply Current Quiescent Power Supply Current Activated Input Resistance Smallest Detectable Input Voltage Largest No Output Input Voltage Largest Simultaneous Outband Signal to Inband Signal Ratio Minimum Input Signal to Wideband Noise Ratio Largest Detection Bandwidth Largest Detection Bandwidth Skew Largest Detection Bandwidth Variation with Temperature Largest Detection Bandwidth Variation with Supply Voltage Highest Center Frequency Center Frequency Stability (4.75–5.75V) 0 < TA < 70 −55 < TA < +125 4.75V–6.75V 4.75V–9V V8 = 15V ei = 25 mV, I8 = 30 mA ei = 25 mV, I8 = 100 mA 4.75–6.75V 100 Bn = 140 kHz 12 IL = 100 mA, fi = fo IC = 100 mA, fi = fo 10 RL = 20k RL = 20k 18 Conditions LM567 Min 4.75 Typ 5.0 6 11 20 20 15 6 −6 14 1 16 2 10 25 10 Max 9.0 8 13 15 LM567C/LM567CM Min 4.75 Typ 5.0 7 12 20 20 15 6 −6 14 2 18 3 25 Max 9.0 10 15 Units V mA mA kΩ mVrms mVrms dB dB % of fo % of fo %/˚C ± 0.1 ±1 500 35 ± 60 35 ± 140 0.5 fo/20 0.01 0.2 0.6 30 150 25 0.4 1.0 1.0 2.0 ± 0.1 ±2 100 ±1 500 35 ± 60 35 ± 140 0.4 fo/20 0.01 0.2 0.6 30 150 ±5 %V kHz ppm/˚C ppm/˚C Center Frequency Shift with Supply Voltage Fastest ON-OFF Cycling Rate Output Leakage Current Output Saturation Voltage Output Fall Time Output Rise Time 2.0 2.0 25 0.4 1.0 %/V %/V µA V ns ns Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication of device performance. Note 2: The maximum junction temperature of the LM567 and LM567C is 150˚C. For operating at elevated temperatures, devices in the TO-5 package must be derated based on a thermal resistance of 150˚C/W, junction to ambient or 45˚C/W, junction to case. For the DIP the device must be derated based on a thermal resistance of 110˚C/W, junction to ambient. For the Small Outline package, the device must be derated based on a thermal resistance of 160˚C/W, junction to ambient. Note 3: Refer to RETS567X drawing for specifications of military LM567H version. www.national.com 2 Schematic Diagram DS006975-3 Typical Performance Characteristics Typical Frequency Drift Typical Bandwidth Variation Typical Frequency Drift DS006975-10 DS006975-11 DS006975-12 3 www.national.com Typical Performance Characteristics Typical Frequency Drift (Continued) Bandwidth vs Input Signal Amplitude Largest Detection Bandwidth DS006975-13 DS006975-14 DS006975-15 Detection Bandwidth .


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