SI5020-BM

Frequency - Max:	2.7GHz
Voltage - Supply:	2.375 V ~ 2.625 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	20-VFQFN Exposed Pad
Supplier Device Package:	20-QFN (4x4)
Base Part Number:	SI5020
Series:	SiPHY™, DSPLL®
Packaging:	Tube
Part Status:	Obsolete
PLL:	Yes
Main Purpose:	Ethernet, SONET/SDH, ATM applications
Input:	Clock
Output:	CML
Number of Circuits:	1
Ratio - Input:Output:	1:2
Differential - Input:Output:	Yes/Yes

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Introduction to SI5020-BMSI5020-BM is a new type of highly integrated, high precision, low power, all-digital clock and timing generator. It is suitable for a wide range of applications such as audio, video, clock distribution, output stage, reference clock and other systems. It is a single-ended programmable clock and timing generator with a wide range of programmable capabilities, making it one of the most versatile and cost-effective clock and timing solutions available.Application FieldsSI5020-BM can be used in audio, video, clock distribution, output Stage and Reference clock applications. In audio applications, SI5020-BM can be used to generate synchronized clock frequencies, which can be used for clocking and timing purposes. These frequencies can be used for synchronization of signal sources, data transfer, and adaptive timing of Audio Variables.In video applications, SI5020-BM clock and timing generator can be used in digital video signal processing, such as frame buffer address generation and timing, and also in data transfer, such as synchronization and synchronization of digital-analog (D/A) converters.In clock distribution applications, SI5020-BM can be used to generate precise clock signals for distribution across a wide area. It can also be used for generating multiple clock signals for distributing clock to every device in the network.In output stage applications, SI5020-BM can be used to provide precise timing and clock frequencies for digital-to-analog (D/A) conversion. This is especially useful when combined with other digital signal processors (DSPs) to create a highly integrated, cost-effective solution.In reference clock applications, SI5020-BM can be used to generate multiple clock frequencies, which can be used as reference frequencies for measurement and calibration.Working PrincipleThe operating principle of the SI5020-BM is based on the programmable oscillator block, which consists of two parts: the Master Oscillator (MO) and the Programmable Waveform Generator (PWG).The MO generates the reference frequency, which is then multiplied (or divided) by a programmable divider inside the PWG to generate the output frequency. The MO also contains a digital frequency divider that divides the generated frequency into smaller steps and stores these steps in an internal register. The frequency of these steps is controlled by a programmable digital filter.The PWG is then used to generate the waveform of the output clock, based on a fixed frequency (or programmable frequency) from the master oscillator. The waveform can be a sine waveform, a triangular waveform, or a square waveform. It can also be programmed to generate waveforms that combine different harmonics.Finally, the waveform generator is fed back to the master oscillator in order to manage the clock and timing settings of the system. ConclusionThe SI5020-BM is a versatile, low-power, all-digital clock and timing generator, which is suitable for a wide range of applications. It is highly programmable and can be used in audio, video, clock distribution, output Stage and Reference clock applications. It can be used to generate synchronized clock frequencies, as well as waveforms that combine different harmonics. It is a cost-effective and highly integrated solution for a variety of clock and timing requirements.

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