633L15003I3T

Oscillators

Oscillators are electronic circuits that can generate repeating waveforms without any independent input or source of energy. An oscillator is typically used to generate a periodic signal or to maintain a steady-state output voltage. Oscillators are most commonly used in wireless communication systems, computer systems, and control systems. Specific types of oscillators include voltage-controlled oscillators, phase-locked loop oscillators, delay line oscillators, digital oscillators, and voltage-controlled oscillators.

633L15003I3T Application Field and Working Principle

The 633L15003I3T is a 50MHz Triple Output Oscillator from Texas Instruments. This oscillator is suited for use in wireless applications, such as 2G, 3G, and 4G mobile phone systems, as well as 5G and beyond. Additionally, it may be used in time-division multiple access (TDMA) and time-division duplex (TDD) radio transmission systems.

The 633L15003I3T oscillator features a low current consumption of only 0.9mA œ 1mA at 3.3V or 5V operation. It also features a low jitter of 85ps (0.45 - 10 MHz), low phase noise (–128dBc/Hz @10MHz), and ±20ppm frequency stability over temperature. It has 3 outputs, all of which are 50MHz, with a load drive of 50Ohms. The oscillator also has PBC (power/bias control) and SBC (start/stop control) pins, enabling it to operate in both LVDS (low voltage differential signaling) and CMOS (complementary metal oxide semiconductor) modes.

The 633L15003I3T oscillator operates on a principle known as “harmonic frequency division” or simply “frequency division.” This principle, as laid out in the 633L15003I3T datasheet, involves the application of an input clock signal of a higher frequency to one or more divide-by-N elements, each with its own divider circuitry, resulting in multiple lower frequency outputs. In this case, the 633L15003I3T has an input frequency of 200MHz and outputs three divided frequencies of 50MHz each.

The 633L15003I3T oscillator is a great choice for applications that require a low power and small size solution and multiple lower frequency outputs. It is designed to provide a cost-effective solution for wireless communication systems, mobile phones, and other electronic applications.