520L15DA38M4000

Application field

The 520L15DA38M4000 is a PLL crystal oscillator and is used in many areas where fast switching and reliability in output signal is needed. These areas include a number of applications such as test equipment, radar, communication, and medical systems. The device is designed to deliver a consistent output frequency over a wide range of temperatures from -40 to 85°C. The 520L15DA38M4000 is able to provide a stable output frequency of up to 1 kHz, which is an advantage in many applications, as the burst mode can be employed to reduce power consumption. Besides, the device is also designed to operate at low voltages, down to 1.5V, with a maximum current of 15 mA. This enables the oscillator to be used in low-power applications, such as RF antennas or wireless transmission.

Working principle

The 520L15DA38M4000 oscillator is based on the phase-locked loop (PLL). It consists of two main blocks: the phase comparator and the voltage-controlled oscillator (VCO). Initially, the analog signal is fed into the divider block which divides the signal into two parts: the initial signal and the divided signal. The divided signal is fed into the phase comparator where it is compared with the initial signal and a voltage output is produced. This voltage output controls the VCO which in turn generates the output signal. The duty of the feedback loop is to keep the two signals in phase. The most important factor in this feedback loop is the loop gain, which determines the stability of the oscillator. If the loop gain is too low, the oscillator may be unstable, and if the loop gain is too high, the output signal is likely to be distorted.

Summary

The 520L15DA38M4000 oscillator is a PLL crystal oscillator designed for high performance and fast switching. Its low voltage and maximum current of 15 mA make it ideal for low power and wireless applications. The device is also capable of delivering stable output frequency of up to 1 kHz. In addition, the device has a wide temperature range of -40 to 85°C, and can operate with a maximum accuracy of +/-20 ppm. The key components of the oscillator include the phase comparator and the voltage-controlled oscillator, which work together to maintain phase synchronization.