510SAA-ABAG

Programmable Oscillators

Programmable oscillators are electronic circuits used to generate oscillations, or repetitive electrical signals, with an adjustable frequency and adjustable voltage. Oscillators are used in various applications such as test and measurement, communications, sound synthesis, robotics, and audio and imaging systems. As their names suggest, programmable oscillators are electronically programmable through software or hardware interfaces.

The 510SAA-ABAG is a digital programmable oscillator that is designed to generate a single frequency between 5 Hz to 400 KHz. It is a low-power, low-voltage device with low propagation delay and jitter. The device is configurable and programmable using SPI (Serial Peripheral Interface) for frequency, phase, start-up values, internal temperature compensation, output logic levels and edge rate control. In addition, the 510SAA-ABAG offers on-chip hysteresis and disable features.

Application Field and Working Principle

The 510SAA-ABAG is suitable in high-frequency, low-voltage applications where accuracy and reliability are required. Examples of potential applications include frequency synthesizers, high-speed D/A converters and high-speed A/D converters. The 510SAA-ABAG is also suitable for use in communications, industrial control, timing and test equipment applications.

This programmable oscillator utilizes a digital phase-locked loop (DPLL) based on the design of a standard feedback control circuit. It generates a signal that varies in frequency, phase and amplitude according to the values programmed. It contains a digital-tunable, wide-range frequency multiplier that provides the ability to generate high-frequency output signals with accuracy and precision.

It also features programmable output logic levels and provides hysteresis to enable high-frequency jitter rejection. In addition, the 510SAA-ABAG also offers on-chip temperature compensated voltage control oscillator (TCVCXO) for high-frequency stability and variable duty cycle programs, to provide frequency modulation from a constant-unity frequency source.

The stability of the 510SAA-ABAG can be monitored and adjusted through an integrated temperature sensor. The temperature sensor, along with an external temperature reference, is also used to provide a frequency-smoothing algorithm. This algorithm ensures that no matter what environmental conditions the device is exposed to, the frequency will remain stable and accurate.

Conclusion

The 510SAA-ABAG is a versatile, digital programmable oscillator suitable for various high-frequency and low-voltage applications. It offers features such as on-chip hysteresis and disable, low-voltage control, low-power operation, and a wide range of frequency outputs. In addition, the 510SAA-ABAG offers a temperature-compensated voltage control oscillator (TCVCXO), an integrated temperature sensor, and an innovative frequency-smoothing algorithm to ensure accurate, stable output.