SIT8008AIL8-25S Datasheet/PDFProgrammable oscillators are integrated circuits that produce high-performance, low-phase noise clock signals. These clock signals are used to control and drive peripheral devices, ensuring that they function reliably. Whether it is an audio player, a processor, or any other device, it needs a clock signal to be able to send and receive data in precisely timed pulses. The most commonly used programmable oscillator is the SIT8008AIL8-25S, a low-jitter, low-cost device.
Overview
The SIT8008AIL8-25S is a single-ended programmable clock oscillator with a frequency range of 3.2 MHz to 25 MHz. It is designed for low-noise and low-power applications. It is a cost-effective solution over traditional quartz oscillators because it can be programmed to any desired frequency. The SIT8008AIL8-25S also has a low jitter of only 0.45psrms. The lead-free, RoHS-compliant package is offered in a tiny SOT-23-6 package with a footprint of as little as 1.5 x 1.5 mm, making it ideal for applications where space is a constraint.
Application Fields
The SIT8008AIL8-25S is typically used to generate the clock signal for products that require precise pulses of data, such as audio players, regulators, and processors. It is widely used in telecommunications and data centers, as it is able to generate clock signals accurately and reliably. The single-ended output also makes it an ideal choice for system clock generation for systems such as cellular networks, broadcasting systems, and satellite communications.
Working Principle
The main component of the SIT8008AIL8-25S is a customised, five-stage voltage-controlled oscillator (VCO) which produces a low-noise, low-jitter clock signal. The frequency of the clock signal is determined by the components of the VCO and is powered by the internal voltage levels. The device also has a DC coupled analog phase locked loop (PLL) with a phase comparator which stabilises the frequency across temperature variations. Additionally, it has an internal reference divided down to match the programmed frequency and a programmable feedback divider.
Conclusion
The SIT8008AIL8-25S is a versatile, low-noise, low-jitter, single-ended programmable oscillator. It is an ideal choice for applications such as audio players, regulators, and processors that require accurate timing signals. With its small footprint and low-cost, it is an attractive solution for a wide range of applications.