9FG1903AK-1LF

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The 9FG1903AK-1LF is a piece of clock/timing equipment that facilitates phase-locked loop (PLL) frequency synthesis and clock generation. It is widely used in a range of applications from embedded system microcontrollers to high-performance communications systems. As a single integrated circuit (IC), it packs together a range of powerful capabilities and functionality, making it a highly efficient device for many modern clock/timing needs.

The 9FG1903AK-1LF is characterized by its impressive low-power performance. It is supplied in an ultra-compact 8-pin SOIC package and can operate at power levels of less than 2 mW, making it highly suitable for mobile and battery-powered applications. The input frequency is adjustable between 5 MHz and 1.2 GHz, and the output frequency can be set to any frequency within this range. In addition, the circuit includes a jitter attenuator to produce a stable clock signal at low-frequency levels.

In terms of its working principle, the 9FG1903AK-1LF is a non-linear PLL frequency synthesizer designed to convert an input signal at any adjustable frequency between 5 MHz and 1.2 GHz into a stable clock with an adjustable frequency. It performs this task by taking advantage of the technique known as Charge Pump Phase-Locked Loop (CPPLL) technology, which is suitable for a wide variety of clock/timing applications. This technology combines a low-latency, low-jitter PLL architecture with a low-leakage charge pump and low-capacitive logic to produce a highly efficient and stable clock generator.

The 9FG1903AK-1LF achieves a lock range that exceeds 0.35%, which makes it well suited for applications that require high frequency accuracy and low-power performance. Additionally, the 9FG1903AK-1LF incorporates advanced features that enable the circuit to maintain a high data rate and low blocking time even when the input signal is subjected to significant load variations. The 9FG1903AK-1LF also includes power management features such as current limitations, supply voltage monitor, a standby mode, and an internal clock enable/disable mode.

In conclusion, the 9FG1903AK-1LF is a highly versatile and powerful clock/timing device suitable for a wide range of applications from embedded systems microcontrollers to high-performance communications systems. It is characterized by its impressively low power consumption, adjustable input frequency, excellent lock range, and advanced power management features. This makes it ideal for modern clock/timing needs.

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