ICS670M-03IT

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ICS670M-03IT application field and working principle

ICS670M-03IT is a clock generator and frequency synthesizer, designed for high-volume consumer and industrial applications such as set-top boxes, video game consoles, HDD storage, and telecom systems. It integrates a very low-power, highly-programmable, high-resolution continuous-time linear interpolator (CTLI) with a high-performance fractional-N/multi-modulus prescaler, and produces both analog and digital outputs. The ICS670M-03IT is also capable of transitioning between output frequencies with a minimal settling time, due to its advanced closed loop architecture.

The ICS670M-03IT comes in a small 8-pin package and operates over a range of supply voltages, including 2.5V, 3.3V, 5V and 6V. It is designed to be powered by the internal or external clock sources, making it very suitable for external clock applications. The ICS670M-03IT offers ×1.2 up to ×13 clock-multiplication ratios, and is capable of driving a variety of common reference clock frequencies (from 1kHz to 500MHz). The ICS670M-03IT also features a programmable 10/20/50MHz reference clock input, allowing for flexible system timing solutions.

The ICS670M-03IT features an advanced frequency-synthesis technique, using the innovative “Colubris” architecture. This design combines the use of multi-modulus prescalers, fractional-N loops, and multiple multi-modulus dividers to synthesize any desired low-frequency signal. It combines both frequency multiplication and modulation techniques to achieve high accuracy and low jitter frequency output with minimal program overhead.

The ICS670M-03IT is highly efficient, consuming less than 100mW in typical applications. It is also very flexible, with 24-bit programmable divider values, an internal 10-bit DAC for programmability and can be operated from a wide range of external clock sources. The ICS670M-03IT’s advanced design and wide operating range make it ideal for applications including Multi-Terabit Switch Systems, CompactPCI, MicroTCA, RapidIO and Network Appliances.

In summary, the ICS670M-03IT is an advanced clock generator and frequency synthesizer designed to meet the needs of high-volume consumer and industrial applications. It offers a high degree of accuracy and flexibility, together with a wide range of operating parameter options. By integrating a CTLI with a multi-modulus prescaler, it is capable of synthesizing any desired low-frequency signal with minimal setup time. The ICS670M-03IT also consumes very low power and is highly efficient, making it well-suited for external clock applications.

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