ICS503MT

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The ICS503MT is a high performance VCXO (Voltage-controlled Crystal Oscillator) PLL (Phase Lock Loop) frequency synthesizer. It combines low jitter (<0.16 ps RMS) VCXO and a powerful, versatile PLL synthesizer core in a compact, easy to use chip set. The ICS503MT is designed to provide high frequency accuracy and reliability over temperature, supply voltage, and process variation. The device offers a wide range of features such as: selectable output frequency, active loop bandwidth control, over-current protection, and integrated crystal matching to minimize the need for external components. This makes the ICS503MT ideal for applications where frequency accuracy, low jitter, and reliability are required, such as high-speed digital and communication systems.

The ICS503MT can be programmed to generate output frequencies from 4kHz to 500MHz. It also allows for up to +/-100 ppm frequency drift, which is mainly due to crystal frequency and supply voltage variations, temperature changes, and other environmental factors. The ICS503MT offers ultra-low-jitter, low noise, frequency multiplication, clock multiplication, and frequency hopping, with a maximum output jitter of 0.16ps RMS in the individual output. It also offers clock output enable/disable capabilities, allowing for optimum flexibility and power savings in the system.

The circuity of the ICS503MT can be divided into two parts: the first part is the VCXO circuit which is used to generate a signal with low jitter and low phase noise, and the second part is the PLL circuit which is used to generate a frequency-agile signal. The two circuits work together to provide high accuracy and reliable performance. The VCXO circuit utilizes a crystal oscillator to ensure high frequency accuracy and to generate a signal with low jitter and low phase noise. The PLL circuit includes a low noise amplifier, digital phase detector, low pass filter, and voltage controlled oscillator (VCO). The digital phase detector is used for the automatic locking or re-locking of the PLL to track the crystal reference frequency. The low pass filter is used to eliminate the high-frequency components at the output of the digital phase detector and to convert the error signal into an analog voltage. The VCO then uses this analog voltage to adjust its output frequency. The ICS503MT also includes voltage control circuitry, which is used to achieve more accurate frequency control.

In summary, the ICS503MT is a high performance and versatile frequency synthesizer solution. It combines low jitter (<0.16 ps RMS) VCXO and a powerful and highly programmable PLL synthesizer core in a compact chip set. The device offers frequency accuracy and reliability over temperature, supply voltage, and process variation. It also provides clock output enable/disable capabilities for optimum power savings in the system. The ICS503MT is the ideal device for applications requiring high frequency accuracy, low jitter, and reliability, such as high-speed digital and communication systems.

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