DS1090U-8+

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DS1090U-8+ is a phase-locked loop (PLL) frequency synthesizer that provides phase-locked output frequencies from a low-frequency reference. Its primary application field is in the generation of high-frequency clock signals from relatively low-frequency inputs. Its flexible architecture allows the output frequency to be modified quickly, easily and accurately.

The DS1090U-8+ is a 3rd-order PLL structure that provides a frequency synthesized output. The PLL works by combining a voltage-controlled oscillator (VCO), phase detector and loop filter together. The phase detector compares the output frequency of the VCO to an external reference clock and then adjusts the VCO output frequency as needed in order to achieve the desired frequency.

The DS1090U-8+ uses a digital phase-locked loop (DPLL) architecture to provide a wide range of output frequencies from a low-frequency reference. This feature allows the output frequency to be easily modified from its initial value. The input frequency required to generate the output frequencies is adjustable over a wide range of frequencies, from 10KHz to 250MHz.

In addition, the DS1090U-8+ has an adjustable duty cycle that is determined by the internally stored duty cycle value. This duty cycle value allows the output signal to be adjusted to any desired duty cycle without distortion. This feature is useful in applications that require the duty cycle of the clock be adjusted to achieve a desired effect.

The frequency synthesizer architecture also incorporates a three-stage prescaler to provide output frequencies with higher frequency resolution than is possible using traditional VCOs. The three-stage prescaler divides the clock frequency by three successive factors of two, thus allowing the unit to produce output frequencies that are up to eight times higher than those produced by standard VCOs.

The DS1090U-8+ also features a wide range of output drive levels, from 0.8V to 2.5V, that can be adjusted via an external resistor divider. This feature gives the user the option of setting the output drive level for maximum signal integrity or for saving power. The unit also features a wide range of output drive strengths that can be adjusted via an external resistor divider.

The DS1090U-8+ also features a power-down mode, which allows the user to easily shut down the device without having to physically disconnect it from the circuit. Thisfeature can be used to save power when the device is not in use.

Finally, the DS1090U-8+ has a number of adjustable characteristics that can be adjusted through its configuration register. These include the operating frequency, input divider ratio, finite state machine (FSM) parameters and control logic settings. By adjusting these parameters, the user can fine-tune the unit’s performance to achieve the desired output.

In summary, the DS1090U-8+ is a flexible frequency synthesizer that provides a wide range of output frequencies from a low-frequency reference. Its 3rd-order PLL architecture, adjustable duty cycle and adjustable output drive level enable the user to easily and accurately fine-tune the performance of the unit. The unit’s digital PLL architecture and three-stage prescaler also allow the unit to produce output frequencies with higher frequency resolution than is possible using standard VCOs. The unit’s power-down mode and adjustable characteristics enable the user to save power when the device is not in use. The DS1090U-8+ is therefore an ideal solution for applications where performance and power consumption must be optimized.

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