LM1893N National Semiconductor, LM1893N Datasheet
LM1893N
Specifications of LM1893N
LM1893
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LM1893N Summary of contents
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... O DATA BI-LINE TM and COPS TM are trademarks of National Semiconductor Corp Carrier-Current Transceivers are also called Power Line Carrier (PLC) transceivers C 1995 National Semiconductor Corporation TL H 6750 Output power easily boosted 10-fold 300 kHz carrier frequency choice Y TTL and MOS compatible digital levels ...
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... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply voltage Voltage on pin 12 Voltage on pin 10 (Note 1) Voltage on pins 5 and zener current Junction temperature transmit mode receive mode Electro-Static Discharge (120 pF 1500 ) ...
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Receiver Electrical Characteristics deviation FSK kHz V 100 mVpp in the receive mode unless otherwise noted e e DATA IN Parameter 25 Supply voltage V a range Functional receiver (Note 7) 26 Supply current ...
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Typical Performance Characteristics LM1893) Total Current Consumption I vs Supply Voltage QT Chip Bias Current Junction Tempurature Transient Voltage Survival vs Pulse Time ALC Voltage vs Junction Temperature (V a 18V F 125 kHz circuit of Figure ...
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Typical Performance Characteristics Maximum Data Rate vs Junction Temperature PLL Capture Lock Range vs Junction Temperature Impulse Noise Filter Current vs Junction Temperature Offset Hold Cap Bias Current vs Junction Temperature (Continued) Receiver Sensitivity vs PLL Lock Range vs Junction ...
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... Noise appears as duty-cycle jitter at the open collector serial data output Dual-In-Line Package 2 2% devia- g Order Number LM1893N See NS Package Number N18A Small Outline onto the C and the tank ...
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Application Information (Continued) 7 ...
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Application Information (Continued) Recommended Purpose Value C 560 pF Together C and set ICO 047 F PLL loop filter pole PLL loop ...
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Component Selection (Continued) be made above that parasitic capacitance is not dominant Excessive or unbalanced common-mode-to- ground capacitance should be avoided A low temperature coefficient (TC) of capacitance ( 100 PPM C) such monolithic ...
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Component Selection (Continued Capacitor C ’s primary function is to block the power line C voltage from T ’s line-side winding Also C 1 side winding comprise a LC highpass filter The self-induc- tance far ...
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Component Selection (Continued) power capability than standard avalanche diodes rated for equal DC dissipation Metal oxide varistors have not proven useful because of their inferior clamping coefficient and are not recommended Specifications for an example minimum diode are given in ...
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Component Selection (Continued) C and These phase-locked loop (PLL) loop filter components re- move some of the noise and most of the 2F present in the demodulated differential output voltage signal from the phase detector They affect ...
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Component Selection (Continued) FIGURE 20 Size C assuming a 2 bit-time M receive bias time C I The impulse noise filter integrator capacitor C disallow the passage of any pulse shorter than the integra- tor charge time That charge time ...
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Breadboarding Tips (Continued) When evaluating CCT system noise performance on a real power line it is desirable to vary the signal ampli- tude to the receiver This is not easy An in-line line- proof L-pad is fine except that the ...
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Thermal Considerations (Continued) nal for an N package lower with good PC JA board layout Since relatively strong function iterative solution process starting with an initial guess for T ...
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Power Line Impedance (Continued 6750– 29 FIGURE 27 Complex-plane plots of measured 115V 60 Hz line impedance where Z Power Line Attenuation The wiring in most US buildings is a flat 3 conductor cable called Amerflex BX or ...
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The Coupling Transformer FIGURE 29 Impressed line voltage for a given Z for each of the 3 taps available on the recommended transformers OPP ALC ...
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FIGURE 30 A simple carrier amplitude detector with output low when carrier is detected FIGURE 31 A simple linear analog audio transmitter and receiver are shown The carrier and 1 6V inputs are derived from the carrier detector of Figure ...
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Communication and System Protocols (Continued) carrier current applications since they do not have the intelli- gence needed to distinguish between real messages and noise induced phantoms The difficulty in designing special protocols arises out of the special nature of the ...
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Basic Data Encoding (Continued) FIGURE 33 Operating waveforms of a line- synchronized transceiver pair are shown The diagram shows how the transmitted data transitions may be used as received data sampling points data edges for the line synchronous data transmission ...
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Simplified Schematic 21 ...
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References 1 Nicholson J R and J A Malack ‘‘RF Impedance of Pow- er Lines and Line Impedance Stabilization Network in Conducted Interference Measurements ’’ IEEE Transac- tions on Electromagnetic Compatibility May 1973 (line impedance data) 2 Southwick R A ...
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... Physical Dimensions inches (millimeters) Molded Small Outline Package (M) Order Part LM2893M NS Package Number M20B Molded Dual-In-Line Package (N) Order Part LM1893N NS Package Number N18A 23 ...
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... Floor Straight Block a Ocean Centre 5 Canton Rd 49) 0-180-530 85 85 Tsimshatsui Kowloon a Tel ( 49) 0-180-532 78 32 Hong Kong a 49) 0-180-532 93 58 Tel (852) 2737-1600 a Tel ( 49) 0-180-534 16 80 Fax (852) 2736-9960 a Lit 107664 National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 ...