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MC4044L from MOTOROLA, Motorola 73pcs,Phase-frequency detector
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MC4044L MOTOROLA N/a 73
MC4044L from MOT, Motorola 3520pcs , CDIP14,Phase-frequency detector
(8) MOTOROLAPHASE-FREOUENCY DETECTORThe MC4344/4044 consists of two digital phase detectors, acharge pump, and an amplifier. In combination with a voltagecontrolled multivibrator (such as the MC4324/4024 or MC1648),it is useful in a broad range of phase-Iocked loop applications.The circuit accepts TTL waveforms at the R and V inputs andgenerates an error voltage that is proportional to the frequencyand/or phase difference of the input signals. Phase detector #1is intended for use in systems requiring zero frequency and phasedifference at lock. Phase detector #2 is used if quadrature lock isdesired. Phase detector #2 can also be used to indicate that themain loop, utilizing phase detector #1, is out of lock.Operating Frequency = 8 MHz typInput Loading Factor: R, V = 3Output Loading Factor (Pin 8) = 10Total Power Dissipation = 85 mW typ/pkgPropagation Delay Time = 9.0 ns typ(thru phase detector)(8) MOTOROLAPHASE-FREOUENCY DETECTORThe MC4344/4044 consists of two digital phase detectors, acharge pump, and an amplifier. In combination with a voltagecontrolled multivibrator (such as the MC4324/4024 or MC1648),it is useful in a broad range of phase-Iocked loop applications.The circuit accepts TTL waveforms at the R and V inputs andgenerates an error voltage that is proportional to the frequencyand/or phase difference of the input signals. Phase detector #1is intended for use in systems requiring zero frequency and phasedifference at lock. Phase detector #2 is used if quadrature lock isdesired. Phase detector #2 can also be used to indicate that themain loop, utilizing phase detector #1, is out of lock.Operating Frequency = 8 MHz typInput Loading Factor: R, V = 3Output Loading Factor (Pin 8) = 10Total Power Dissipation = 85 mW typ/pkgPropagation Delay Time = 9.0 ns typ(thru phase detector)

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