SKY72310-362LF

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SKY72310-362LF is a high performance clock generator from Skyworks Solutions, a manufacturer of state-of-the-art semiconductor solutions for wireless and mobile technologies. This device, available in a tiny 3.2 mm x 3.2 mm quad flat no-lead (QFN) package, is excellent for reliable clock generator, PLL and frequency synthesizer applications.

SKY72310-362LF features a wide range 10-562 MHz input frequency, integrated 3.2-5.5V operating voltage, output enable (OE) control, spread spectrum clock (SSC) support and differential LVPECL / LVDS / CML outputs.

SKY72310-362LF is perfect for applications where low jitter and superior clock performance is required, such as high-end digital TVs, set-top boxes, digital satellite receivers, video distribution systems, video-on-demand, digital TV, cameras and other industrial and consumer imaging applications.

In addition to providing superior clock generator performance, SKY72310-362LF provides several design advantages. It is designed with a single input frequency and external resistor for setting the output frequency. The output frequency selectivity can be adjusted up to ± 500 ppm with a 10 kHz frequency step. It offers excellent frequency stability over wide temperature range and provides low additive jitter of 0.1 ps typical (12 kHz - 20 MHz).

The working principle behind SKY72310-362LF is buffered voltage controlled oscillator (VCO) architecture. It is based on a low-noise, fractional-N frequency synthesizer that uses separate control and reference clock paths. The reference clock is provided by an external clock source, whereas the control clock is derived from the VCO output. The frequency generator employs a high-performance loop filter with very low-noise and fast settling operation. It supports output frequencies up to 4 GHz and provides better than 1 % overall frequency accuracy and tight jitter performance (2.0 ps peak to peak at 20 MHz out).

The output frequency of the device is set using an external resistor divider network. The VCO architecture enables low output frequency set-up time and fast settling time. The loop filter of the device ensures setting time under 100 ms. The SSC control with spread ratio of ± 5 %, provides improved EMI/EMC performance. SKY72310-362LF is packaged in an industry-standard 3.2 mm x 3.2 mm surface mount package, making it ideal for CompactPCI and other space-constrained apps.

In conclusion, SKY72310-362LF from Skyworks Solutions is an ideal device for clock generator, PLLs and frequency synthesizer applications. It features PMU for easy programming and configuration, low jitter performance and wide range of output frequencies. The device is packaged in a small 3.2 mm x 3.2 mm QFN package and is designed to meet the toughest requirements of high-end digital TVs, set-top boxes, digital satellite receivers, video distribution systems and other industrial and consumer imaging applications.

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