SY100S834ZC

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The SY100S834ZC is a programmable clock generator and phase-locked-loop (PLL) from SII Semiconductor Corporation. It is a high-performance on-chip solution for clock and timing applications, providing designers with the flexibility to select the best design for their system. The SY100S834ZC features a wide operating temperature range, low power consumption, and low jitter output. With its high reliability and robust architecture, the SY100S834ZC is well suited for use in telecommunications, computer, and consumer electronics applications.

Application Field

The SY100S834ZC is ideal for applications requiring the flexibility of programmable frequency output in clock generation and synchronization. It is designed for clock and timing applications requiring high accuracy and low jitter. The device is designed for applications such as telecom systems, set-top boxes, personal computers, digital video broadcasting, and digital audio broadcasting.

The SY100S834ZC supports synchronized time-division multiplexing (TDM) and phase modulation techniques in digital broadcasting applications. It is suitable for high-speed serial data networks such as Fibre Channel, Ethernet, and Gigabit Ethernet. Additionally, it is well suited for applications such as DVD players, DVRs, and HDTVs which require the flexibility to change output frequencies quickly and precisely.

Working Principle

The SY100S834ZC uses a charge pump PLL architecture. The PLL consists of a phase detector, a loop filter, an analog control voltage generator, an oscillator and a frequency divider. The phase detector compares the input clock frequency with the output of the VCO. The voltage control output then adjusts the capacitor of the loop filter to bring the output of the VCO close to the input frequency. The output of the loop filter is used to control the frequency of the VCO.

The SY100S834ZC also uses an on-chip offset voltage generator which is used to adjust the output frequency of the VCO by adding/subtracting a bias voltage to the control voltage from the loop filter. This voltage can also be used to fine-tune the output frequency. The SY100S834ZC provides a wide range of output frequency adjustment for output frequencies ranging from 10 MHz to 1 GHz.

The SY100S834ZC also features an on-chip spread spectrum frequency modulation (SSFM) circuit. This circuit generates a sinusoidal modulation waveform which is added to the control voltage from the loop filter. The frequency of the SSFM waveform is adjusted to reduce EMI (electromagnetic interference). The SSFM waveform can also be used to reduce jitter and improve the stability of the output frequency.

The SY100S834ZC also provides a wide range of power management features such as low power mode, power-down mode, and auto-shutdown. These features enable the device to be power efficient and reduce power consumption when not in use. The SY100S834ZC also includes an on-chip oscillator which is used to provide a clock reference for the device when the input clock is stopped.

The SY100S834ZC is an ideal solution for clock and timing applications requiring high accuracy, low jitter, and flexible frequency adjustment. With its wide operating temperature range, low power consumption, and robust architecture, the SY100S834ZC is well suited for use in a variety of applications.

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