SI5351A-B05797-GTR Datasheet/PDFClock/timing devices are often used in a variety of applications, from power management and communications systems to audio/video equipment and medical devices. The SI5351A-B05797-GTR is a high-performance, low-cost integrated clock generator circuit. It features a high output frequency range of 5-800 MHz, low-jitter output signals, and low power consumption. With its capability to synthesize multiple frequencies, the SI5351A-B05797-GTR is a perfect choice for a variety of clock and timing applications.
Overview
The SI5351A-B05797-GTR is an integrated clock generator circuit that provides up to three outputs with high accuracy. It is equipped with an on-chip Crystal Oscillator (XO), which can be operated at fixed frequencies such as 25, 26, or 27 MHz. The oscillator can also be user-programmed for different frequency selections. Output frequencies for the three outputs can be independently user-programmed up to 5-800 MHz, allowing for the generation of complex clocking signals.
The SI5351A-B05797-GTR also offers superior jitter characteristics, with a jitter of less than 2 ps rms throughout its entire frequency range. This low jitter contributes to an improved signal-to-noise ratio, allowing for better overall accuracy and improved device performance. The SI5351A-B05797-GTR also has low power consumption in active and standby modes, making it an ideal choice for battery-powered applications.
Application Fields
The SI5351A-B05797-GTR can be used in a variety of applications, including the following:
- Power management systems
- Communication systems
- Audio/Video systems
- Medical devices
- Testing and measurement systems
- Avionics and aerospace systems
The SI5351A-B05797-GTR is an ideal choice for applications that require accurate and reliable signal timing, such as digital data acquisition systems, wireless communications devices, or broadcast audio and video systems. The device is also suitable for battery-powered applications, as it can generate multiple output frequencies while maintaining low power consumption.
Working Principle
The SI5351A-B05797-GTR is a Pulse-Width Modulated (PWM) frequency synthesizer circuit. It utilizes an on-chip XO and an internal Phase Detector (PD) to generate multiple output frequencies. The output frequencies are determined by the external timing reference signal, which is provided by the XO. The PD then adjusts the pulse width of the PWM in order to generate the desired frequencies.
The SI5351A-B05797-GTR is also equipped with a Charge Pump (CP), which is used to provide the necessary current for the timing circuit to accurately generate the desired frequencies. The CP is also used to ensure that the phase noise of the output signal is minimized, resulting in a low jitter clock.
In addition, the SI5351A-B05797-GTR also features an on-chip voltage-controlled oscillator (VCO). The VCO can be used to generate frequencies at higher accuracy, as the VCO will automatically adjust the frequency according to the applied voltage.
The low-power and low-cost features of the SI5351A-B05797-GTR make it an ideal choice for clock generation and frequency synthesis applications. The device is also highly configurable, allowing for the generation of complexsignals with precise accuracy.