DS21610SN

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DS21610SN is an integrated clock generator family with dual 4-output low-skew clock generators, with frequency range from 10MHz to 200MHz. It has a wide range of applications such as high-speed communication systems, video broadcasting systems, consumer electronic products, or automotive electronic systems. DS21610SN supports multiple output frequencies in the same device, and requires only one reference input frequency of 10MHz or 19.2MHz. DS21610SN has the advantages of ultra wide frequency range, low phase jitter, and multiple package options.

Application Field of DS21610SN

DS21610SN is widely used in multiple clock generators or PLL applications. It can meet the requirements of ultra-wide frequency range from 10MHz to 200MHz, as well as low phase jitter performance. Some of the most common applications for DS21610SN include high-speed communication systems, video broadcasting systems, consumer electronics, automotive electronics and synchronous digital applications.

In terms of high-speed communication, DS21610SN is usually used in routers, switches, internet protocol cameras (IP cameras) etc. These devices require multiple output frequencies for achieving better performance. DS21610SN provides two sets of four low-skew output buffers for generating frequencies up to 200MHz. As a result, it is necessary in most current technologies.

For video broadcasting, DS21610SN is essential for buffer and multiplexer designs, where different video frequencies need to be synchronized and/or routed. It meets the demands of video broadcasting systems with its low-skew clock outputs, allowing the video frequency of different streams to be accurately synchronized.

In the consumer electronic field, DS21610SN can be used in Digital Video Recorders (DVRs) and Digital Video Cameras (DVCs). It provides dual 4-outputs for generating and synchronizing the clock signals for different components in the device, and its low phase jitter performance ensures a stable data transmission.

DS21610SN can also be applied in automotive electronics, as it provides a wide frequency range and low-skew clock outputs. This makes it suitable for designing clock signals for automotive safety systems, powertrain selection and smart control systems.

Working Principle of DS21610SN

The DS21610SN is based on DSC’s 5th generation, low-skew clock generator technology. It requires only a single reference input frequency of 10MHz or 19.2MHz to provide two sets of four low-skew clock outputs at frequencies of up to 200MHz.

DS21610SN also includes a programmable Charge Pump (CP). The CP and controlling Fractional-N synthesis engine are used to generate the 200MHz clock and the complementary CLKOUTB outputs. Internal divide-by-1000 blocks are used to divide the input reference frequency and drives the CP to provide the output clocks.

Besides, the CP can also operate in Integer-N mode. In this mode, the internal dividers are disabled and the CP output frequency is determined by the frequency of the reference clock. This allows the generation of multiple Clock/Timing output frequencies from the same reference input, which is useful for PLLs applications.

Additionally, the allowable phase offset of the output clocks can be set by the Clock Step Size setting. The step size is adjustable from 0.1 to 4ns, allowing designers to generate precise clock signals for their applications. Furthermore, it also supports frequency offset mode when the output buffers are ganged together. This can also be used to improve the accuracy of the output clock signals.

To conclude, DS21610SN is an integrated clock generator family with dual 4-output low-skew clock generators. It is widely applied in multiple clock generator or PLL applications, with its wide frequency range, low phase jitter, and multiple package options. It provides a single reference input frequency of 10MHz or 19.2MHz to generate up to 200MHz clock. Working with a programmable Charge Pump and controlling Fractional-N synthesis engine, DS21610SN can meet the demand of most current technologies.

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