LM567

LM567/LM567C Tone Decoder February 2003 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 00697501 Top View Order Number LM567H or LM567CH See NS Package Number H08C 00697502 Top View Order Number LM567CM See NS Package Number M08A Order Number LM567CN See NS Package Number N08E © 2004 National Semiconductor Corporation DS006975 www.national.com LM567/LM567C 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 Operating Temperature Range 9V 1100 mW 15V −10V V4 + 0.5V −65˚C to +150˚C LM567H LM567CH, LM567CM, LM567CN Soldering Information Dual-In-Line Package Soldering (10 sec.) Small Outline Package Vapor Phase (60 sec.) Infrared (15 sec.) −55˚C to +125˚C 0˚C to +70˚C 260˚C 215˚C 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 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 = 25 mV, I8 = 30 mA ei = 25 mV, I8 = 100 mA 4.75V–6.75V 4.75V–9V 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 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 LM567/LM567C Schematic Diagram 00697503 3 www.national.com LM567/LM567C Typical Performance Characteristics Typical Frequency Drift Typical Bandwidth Variation 00697510 00697511 Typical Frequency Drift Typical Frequency Drift 00697512 00697513 Bandwidth vs Input Signal Amplitude Largest Detection Bandwidth 00697514 00697515 www.national.com 4 LM567/LM567C Typical Performance Characteristics Detection Bandwidth as a Function of C2 and C3 (Continued) Typical Supply Current vs Supply Voltage 00697517 00697516 Greatest Number of Cycles Before Output Typical Output Voltage vs Temperature 00697518 00697519 5 www.national.com LM567/LM567C Typical Applications Touch-Tone Decoder 00697505 Component values (typ) R1 R2 R3 C1 C2 C3 C4 6.8 to 15k 4.7k 20k 0.10 mfd 1.0 mfd 6V 2.2 mfd 6V 250 mfd 6V www.national.com 6 LM567/LM567C Typical Applications (Continued) Oscillator with Double Frequency Output Oscillator with Quadrature Output 00697507 00697506 Connect Pin 3 to 2.8V to Invert Output Precision Oscillator Drive 100 mA Loads 00697508 7 www.national.com LM567/LM567C AC Test Circuit Applications Information The center frequency of the tone decoder is equal to the free running frequency of the VCO. This is given by The bandwidth of the filter may be found from the approximation Where: Vi = Input voltage (volts rms), Vi ≤ 200mV C2 = Capacitance at Pin 2(µF) 00697509 fi = 100 kHz + 5V *Note: Adjust for fo = 100 kHz. www.national.com 8 LM567/LM567C LM567C MDC MWC TONE DECODER 00697523 Die Layout (C - Step) DIE/WAFER CHARACTERISTICS Fabrication Attributes Physical Die Identification Die Step Physical Attributes Wafer Diameter Dise Size (Drawn) Thickness Min Pitch Special Assembly Requirements: Note: Actual die size is rounded to the nearest micron. Die Bond Pad Coordinate Locations (C - Step) (Referenced to die center, coordinates in µm) NC = No Connection, N.U. = Not Used SIGNAL NAME OUTPUT FILTER LOOP FILTER INPUT V+ TIMING RES TIMING CAP GND OUTPUT PAD# NUMBER 1 2 3 4 5 6 7 8 X/Y COORDINATES X -673 -673 -673 -356 673 673 178 -318 Y 686 -419 -686 -686 -122 76 686 679 X 91 91 91 91 91 91 117 117 x x x x x x x x PAD SIZE Y 91 91 91 91 91 91 91 104 150mm LM567C C General Die Information Bond Pad Opening Size (min) Bond Pad Metalization Passivation Back Side Metal 1600µm x 1626µm Back Side Connection 63.0mils x 64.0mils 406µm Nominal 198µm Nominal 91µm x 91µm 0.5% COPPER_BAL. ALUMINUM VOM NITRIDE BARE BACK Floating 9 www.national.com LM567/LM567C LM567C MDC MWC TONE DECODER (Continued) IN U.S.A Tel #: Fax: IN EUROPE Tel: Fax: IN ASIA PACIFIC Tel: IN JAPAN Tel: 81 043 299 2308 (852) 27371701 49 (0) 8141 351492 / 1495 49 (0) 8141 351470 1 877 Dial Die 1 877 342 5343 1 207 541 6140 www.national.com 10 LM567/LM567C Physical Dimensions unless otherwise noted inches (millimeters) Metal Can Package (H) Order Number LM567H or LM567CH NS Package Number H08C Small Outline Package (M) Order Number LM567CM NS Package Number M08A 11 www.national.com LM567/LM567C Tone Decoder Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) Order Number LM567CN NS Package Number N08E National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. 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