LMC568CN ,Low Power Phase-Locked LoopElectrical Characteristics= =Test Circuit, T 25˚C, V 5V, RtCt #2, Sw. 1 Pos. 0; and no input unless ..
LMC6001AIN ,Ultra Ultra-Low Input Current AmplifierFeaturescurrent in a lower cost molded package.(Max limit, 25˚C unless otherwise noted)To avoid lon ..
LMC6001BIN ,Ultra Ultra-Low Input Current Amplifierapplicationsn Photodiode preamplifierrequiring ultra-low input leakage such as sensitive photode-n ..
LMC6001CIN ,Ultra Ultra-Low Input Current AmplifierElectrical CharacteristicsLimits in standard typeface guaranteed for T = 25˚C and limits in boldfac ..
LMC6008IM ,8 Channel BufferFeaturesYHigh Output Current:The LMC6008 octal buffer is designed specifically to bufferHigh Speed ..
LMC6008IM ,8 Channel BufferApplicationsThe LMC6008 also contains a standby function which putsYAMLCD voltage bufferingthe buff ..
LPT672 , Super TOPLED / High-Current LED
LPT67K , Hyper-Bright Low Current LED
LPV321DCKR ,Single, Low-Voltage, Low Power, RRO
LPV321DCKR ,Single, Low-Voltage, Low Power, RRO
LPV321IDCKR ,Single, Low-Voltage, Low Power, RRO
LPV321M5 ,General Purpose, Low Voltage, Low Power, Rail-to-Rail Output Operational Amplifiers
LMC568CN
Low Power Phase-Locked Loop
LMC568
Low Power Phase-Locked Loop
General DescriptionThe LMC568isan amplitude-linear phase-locked loop con-
sistingofa linear VCO, fully balanced phase detectors,and carrier detect output. LMCMOS™ technologyis employed
for high performancewithlow power consumption.
The VCOhas alinearized controlrangeof ±30% toallowde-
modulationofFMand FSK signals. Carrier detectis indi-
cated whenthePLLis lockedtoan input signal greater than mVrms. LMC568 applications includeFM SCAandTV
second audio program decoders, FSK data demodulators,
and voice pagers.
Features Demodulates ±15% deviation FM/FSK signals Carrier Detect Output with hysteresis Operationto500 kHz input frequency Low THD— 0.5%typ.for ±10% deviation2Vto9V supply voltage range Low supply current drain
Typical Application (100 kHz input frequency, referto notespg.3)
LMCMOS™ isatrademarkofNationalSemiconductor Corporation.
DS009135-1
Order Number LMC568CMor LMC568CN
SeeNS Package Number M08Aor N08EMay 1999
LMC568
Low
Power
Phase-Locked
Loop©1999 National Semiconductor Corporation DS009135
