SI5340B-B03918-GM

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The SI5340B-B03918-GM is an advanced clock generator, phase-locked loop (PLL) and frequency synthesizer from Silicon Laboratories. It offers unmatched timing jitter performance with low jitter buffer output clocks and provides a truly system-level solution for applications such as oscillators, communications, industrial, medical and broadcast.

At the heart of the SI5340B-B03918-GM lies a high performance frequency synthesizer stage that generates low-jitter clock signals. This frequency synthesizer stage allows the SI5340B-B03918-GM to operate with a wide input frequency range, enabling it to accommodate different system requirements.

The SI5340B-B03918-GM operates across a wide frequency range of 10 kHz to 1.2 GHz and provides differential clock outputs that feature either low input jitter or high-frequency synchronization. The wide-range frequency synthesizer stage allows the device to generate an output frequency up to five times the reference frequency with frequency resolution of approximately 0.1%.

The SI5340B-B03918-GM can be used to replace multiple external oscillators, providing system-level timing integration with a low-profile MsOP-8 package. For improved reliability and cost-saving, this device offers single-pin digital control and no external tuning components.

The SI5340B-B03918-GM incorporates different PLL architectures to meet the requirements of noise-sensitive and low-stability applications at different system frequencies. For noise-sensitive applications, the SI5340B-B03918-GM uses a fractional-N PLL architecture, which offers improved jitter attenuation over the traditional integer-N PLL. For low-stability applications, the SI5340B-B03918-GM offers an improved architecture with the use of a high-order modulator.

The SI5340B-B03918-GM also gets a wide input frequency range with its optional external reference clock ports. These ports enable the device to synchronize with external reference clocks or sources with frequencies up to 1.2 GHz. Moreover, the utility of the SI5340B-B03918-GM is further augmented with an on-chip low-power, low-jitter, 50 kHz crystal oscillator.

The device offers three output format options – Square Wave, Multi-synth and Adaptive. The Square Wave output offers low-jitter and wide-range output frequency options while the Multi-synth and Adaptive can support any output frequency within the frequency range available in the device. All the three outputs offer good synchronizing ability and superior jitter performance.

In addition, the SI5340B-B03918-GM has power save modes for low-power operation. This device has a low static current draw in Standby mode, that maintains the registers and sets the input and output clock signals to low-power mode. Additionally, the device has a programmable PLL bypass mode which allows the device to switch from PLL to an external reference clock for improved operating efficiency.

Overall, the SI5340B-B03918-GM is a reliable and high-performance clock generator, PLL and frequency synthesizer from Silicon Laboratories. It provides high-jitter attenuation, long synchronization time-constants, wide input frequency range and a low-profile package. The device also has power save modes and multiple output formats to ensure a wide range of applications. All of these features make the SI5340B-B03918-GM an ideal choice for systems that require wide-range and noise-sensitive clock signals.

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