Ad
related to: datasheet crystal oscillator
Search results
Results from the WOW.Com Content Network
A crystal oscillator is an electronic oscillator circuit that uses a piezoelectric crystal as a frequency-selective element. [1] [2] [3] The oscillator frequency is often used to keep track of time, as in quartz wristwatches, to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters and receivers.
Crystal oscillators can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz.Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors.
The following is a list of CMOS 4000-series digital logic integrated circuits.In 1968, the original 4000-series was introduced by RCA.Although more recent parts are considerably faster, the 4000 devices operate over a wide power supply range (3V to 18V recommended range for "B" series) and are well suited to unregulated battery powered applications and interfacing with sensitive analogue ...
crystal-controlled oscillator: 16 SN74LS320: 74x321 1 crystal-controlled oscillators, F/2 and F/4 count-down outputs 16 SN74LS320: 74x322 1 8-bit shift register, sign extend three-state 20 SN74LS322A: 74x323 1 8-bit bidirectional universal shift/storage register, synchronous clear three-state 20 SN74LS323: 74x324 1
The frequency of the oscillator can be "pulled" in wider range than with high-Q crystal. This allows wider range of adjustments, which may be critical in devices operating in extreme (especially low) temperatures where the crystal's own temperature-frequency dependence could take it outside of the pullable range for the desired frequency. [5]
The Intel 8284 is a clock oscillator chip developed primarily for supplying clock signals for the Intel-8086/8087/8088/8089 series of processors. The commercial variant of the chip comes in 18-pin DIL and 20-pin PLCC packages, and originally was priced at $4.90 USD.
The total capacitance seen from the crystal looking into the rest of the circuit is called the "load capacitance". When a manufacturer makes a "parallel" crystal, a technician uses a Pierce oscillator with a particular fixed load capacitance (often 18 or 20 pF) while trimming the crystal to oscillate at exactly the frequency written on its package.
An electrical oscillator was first used to sustain the motion of a tuning fork by the British physicist William Eccles in 1919; [33] his achievement removed much of the damping associated with mechanical devices and maximised the stability of the vibration's frequency. [33] The first quartz crystal oscillator was built by Walter G. Cady in 1921.
Ad
related to: datasheet crystal oscillator