AX7MCF4-2100.0000C

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Oscillators

Oscillators are electronic components, usually in the form of a chip or a small device, that generate a cyclic waveform at certain frequency. Oscillators are used in most electronic devices, such as radios, computers, and many other types of electrical equipment, for producing periodic electronic signals. This article will discuss the application field and working principle of the AX7MCF4-2100.0000C oscillator.

Application Field

The AX7MCF4-2100.0000C is a high-frequency voltage-controlled oscillator (VCO) which is usually ever used in RF communication systems for 1550nm laser application including telecommunication, CATV and FTTH systems. The output frequency is tunable between approximately 1950MHz to 2100MHz with control voltage of 0-5V. It has a typical phase noise of -80dBc/Hz at 10kHz offset and a typical 1.85GHz external frequency RF input referred Phase noise of -158dBc/Hz.It also features low jitter performance, a high-linearity control voltage range, low phase noise and low power consumption.

Working Principle

The working principle of the AX7MCF4-2100.0000C oscillator is based on a programmable frequency divider IC, where the external clock frequency is divided by either an integer or a fractional N-value. This produces an output frequency range of approximately 1950 to 2100MHz with an adjustable control voltage of 0-5V. The VCO also features a low-noise amplifier (LNA) to minimize co-channel interference and a power down mode for power-saving.

The design architecture of the oscillator is a combination of analog and digital circuits. An oscillator core circuit is driven by a low-jitter clock generator, which is based on a small temperature compensated crystal oscillator (TCXO) or an external clock. This architecture provides a low phase noise, high output frequency, and high linearity. The linearity of the oscillator is achieved by trimming the voltage controlled oscillator (VCO) core frequency and then adjusting the voltage over which the frequency can be varied correctly.

The AX7MCF4-2100.0000C achieves its high-frequency stability by using a Voltage Controlled Oscillator (VCO) and a Programmable Frequency Divider (PFD), together with a precise and accurate reference voltage. The VCO is driven by the PFD which in turn is driven by an RC oscillator. The output can then be tuned and monitored by adjusting the frequency divider. This ensures a higher level of oscillator accuracy and stability.

To provide an optimised phase noise performance, the AX7MCF4-2100.0000C uses a low-noise amplifier (LNA) and a power down mode. The LNA is used to reduce the co-channel interference at the output of the oscillator, while the power down mode allows the oscillator to be disabled when not in use.

In conclusion, the AX7MCF4-2100.0000C is an excellent oscillator for 1550 nm laser applications in the telecommunications, CATV and FTTH industries. It has a wide frequency tuning range and low power consumption, as well as excellent phase noise and linearity performance thanks to its high-precision circuitry. This makes it an ideal oscillator for applications where accuracy, stability and low-noise performance are essential.

The specific data is subject to PDF, and the above content is for reference