ADF4112BRUZ

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The ADF4112BRUZ is a high-accuracy frequency synthesizer and clock generator which uses an integrated phase locked loop (PLL) frequency synthesizer core. This versatile IC provides replacement clocks and clock sources, as well as frequency synthesis derived from an externally programmed digital-to-frequency converter (DFC). It is ideal for frequency and timing synchronization requirements in high-speed clock/data recovery applications (e.g. clock data recovery in SDH/SONET transmission systems).

The ADF4112BRUZ is designed for use in high-accuracy, low power, low jitter frequency synthesizers and clock generators. It integrates all of the required functional blocks for the generation of high performance PLL clocks, synthesizers, or clock sources in one compact unit. The IC’s wide range of features include user-programmable loop parameters and a four-pole PLL design. The ADF4112BRUZ can also operate in several frequency bands/sets, such as 2.4 - 2.4 GHz, 3.0 - 4.2 GHz, and 4.8 - 4.0 GHz.

The ADF4112BRUZ features a four-pole PLL design which allows the user to implement higher order loop filters using fewer components than traditional designs. The device’s wideband loop filter includes a charge pump which improves its overall loop gain, while its low noise VCO allows for improved performance over traditional designs. The ADF4112BRUZ also features a high-accuracy, low-jitter frequency synthesizer core that minimizes error-correction latency and is powered by a single +5V supply.

The ADF4112BRUZ is operated through a serial programming interface which allows the user to program its frequency, select the PLL bandwidth and loop filter corner frequency, and optimize the VCO’s output frequency. In addition, the device’s programmable VCO frequency allows for precisely controlled frequency changes.

The ADF4112BRUZ can also be programmed to operate in spread-spectrum mode to reduce peak power and improve EMI reduction performance. Other features include an internal reference clock for output frequency programming, an internal reference clock for loop filter corner frequency programming, and an internal synchronization pulse generator.

In conclusion, the ADF4112BRUZ is a high-accuracy, low-power frequency synthesizer and clock generator suitable for a wide range of microelectronic systems and applications. Its sophisticated four-pole PLL design, integrated VCO, and wide range of features allow the user to reduce component count and cost while improving overall system performance.

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