Pasternack's six new models of USB-controlled PLL Frequency Synthesizers offer a wealth of desirable features for designers and are ideal for test and measurement applications.
デジタル位相ロックループ周波数シンセサイザ(PLL)技術、超高周波数安定性を使用。
Using digital phase-locked loop frequency synthesizer(PLL) technology, ultra-high frequency stability.
DS1085L 3.3V EconOscillator Frequency Synthesizer- Maxim Description Create a design and simulate using EE-Sim® tools: The DS1085L is a dual-output frequency synthesizer requiring no external timing components for operation.
The LMK61E2 device is an ultra-lowjitter PLLatinum programmable oscillator with a fractional-N frequency synthesizer with integrated VCO that generates commonly used reference clocks.
RF PLL frequency synthesizers Combining high performance, high integration, wideband and multi-band capabilities, ST's RF synthesizers represent a robust and effective alternative to discrete, expensive and bulky PLL and VCO solutions.
DS1085 EconOscillator Frequency Synthesizer- Maxim Description Create a design and simulate using EE-Sim® tools: The DS1085 is a dual-output frequency synthesizer requiring no external timing components for operation.
Frequency Synthesizer♦ Frequency Synthesizer realizes highfrequency extensibility by a low phase noise and is the module of the synthesizer used for the equipment of high-speed radio communication in the microwave zone.
The integrated delta-sigma fractional-N frequency synthesizer allows programming of the IF frequency within a±30Hz(fXTAL 32MHz) accuracy while operating with any reference or crystal frequencies that are available in the host system.
The integrated delta-sigma fractional-N frequency synthesizer allows programming of the IF frequency within a±40Hz accuracy while operating with any reference or crystal frequencies that are available in the host system.
The integrated delta-sigma fractional-N frequency synthesizer allows programming of the IF frequency within a±30Hz(When fXTAL≤ 32MHz) accuracy while operating with any reference or crystal frequencies that are available in the host system.
The MAX2837 completely integrates all circuitry required to implement the RF transceiver function, providing RF-to-baseband receive path; and baseband-to-RF transmit path,VCO, frequency synthesizer, crystal oscillator, and baseband/control interface.
Our research in this area is focused on optical frequency measurement systems based on GPS clocks,optical frequency synthesizers that generate laser outputs of arbitrary wavelength, and the development of stable, accurate microwave sources of accurate division of laser frequencies of which stability are superior to those of masers.
制御ループの基準周波数は、デジタル周波数シンセサイザ(DFS)で設定します。
The reference frequency for thecontrol loop is set in the digital frequency synthesizer DFS.
これらのデバイスは、完全モノリシックVCOと完全周波数シンセサイザを内蔵しています。
The devices include fully monolithic VCOs and a complete frequency synthesizer.
The device also includes a fully monolithic VCO andtank circuit as well as a complete frequency synthesizer including an on-chip crystal oscillator and output buffer/divider.
The frequency synthesizer should be powered by a separate, low-dropout(LDO) linear regulator to avoid noise that is conducted in from the power supply.
Small linear regulators provide active noise filtering and, with reference bypassing,can yield the very low noise levels required by frequency synthesizers.
In addition, the device includes an integrated VCO, a crystal oscillator,a fractional-N frequencysynthesizer to program the LO frequency using different reference frequencies..
Because the PLL multiplies noise within the loop bandwidth by thePLL division ratio(~30,000 for an AMPS handset), the frequency synthesizer is very sensitive to noise from the TCXO.
It is a fully assembled and tested frequency synthesizer consisting of the IC, 5840MHz to 6040MHz external VCO, 50MHz TCXO, passive-loop filter, and low-dropout regulators.
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