| Allicdata Part #: | SIT9005ACU1G-28SC-ND |
| Manufacturer Part#: |
SIT9005ACU1G-28SC |
| Price: | $ 4.35 |
| Product Category: | Crystals, Oscillators, Resonators |
| Manufacturer: | SiTime |
| Short Description: | OSC MEMS |
| More Detail: | SSXO LVCMOS 1MHz ~ 141MHz Programmable Oscillator ... |
| DataSheet: |  SIT9005ACU1G-28SC Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | $ 3.91860 |
Specifications
| Frequency Stability (Total): | -- |
| Current - Supply (Disable) (Max): | 4.3µA |
| Height: | 0.030" (0.76mm) |
| Size / Dimension: | 0.098" L x 0.079" W (2.50mm x 2.00mm) |
| Package / Case: | 4-SMD, No Lead |
| Mounting Type: | Surface Mount |
| Ratings: | -- |
| Current - Supply (Max): | 6.5mA |
| Spread Spectrum Bandwidth: | -0.78%, Down Spread |
| Operating Temperature: | -20°C ~ 70°C |
| Series: | SIT9005 |
| Frequency Stability: | ±20ppm, ±25ppm, ±50ppm |
| Voltage - Supply: | 2.8V |
| Output: | LVCMOS |
| Function: | Standby |
| Available Frequency Range: | 1MHz ~ 141MHz |
| Programmable Type: | Programmed by Digi-Key (Enter your frequency in Web Order Notes) |
| Type: | SSXO |
| Base Resonator: | MEMS |
| Part Status: | Active |
Description
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Programmable Oscillators include quartz crystal oscillator, Si-MEMS oscillator, and voltage-controlled oscillator. They are basically used to generate oscillations at specified frequencies, as a reference clock signal in many digital circuits. SIT9005ACU1G-28SC is an example of programmable oscillator. In this article, we will discuss the application field and working principle of SIT9005ACU1G-28SC.
Application Field
SIT9005ACU1G-28SC is a Programmable Oscillator with frequency range of 40MHz to 2150MHz. It is an ideal solution for many applications, including:
- Optical networking equipment
- Wireless communication systems
- Computer application and peripherals
- Test and measurement instrumentation
- Medical systems
SIT9005ACU1G-28SC is designed for applications which are sensitive to jitter, including SONET, SDH, Fibre Channel, WCDMA, and HiCOR digital links. It also helps to reduce system cost and improve system performance in wireless infrastructure such as digital terrestrial TV, Digital Satellite TV, and terrestrial wireless links.
Working Principle
SIT9005ACU1G-28SC utilizes a quartz crystal as its resonator to generate highly precise oscillations. Crystal oscillators are known for their stability over time and temperature. The crystal resonator is connected to a CMOS inverter and forms a LC circuit. An oscillation voltage is applied to this LC circuit, which allows it to generate oscillations at a frequency determined by the capacitance and inductance of the LC circuit. The frequency of the oscillation is controlled by external components connected to the oscillator. This makes the oscillator programmable.
The SIT9005ACU1G-28SC also includes a voltage controlled oscillator (VCO) to extend flexibility and performance. An external voltage applied to this VCO varies the oscillation frequency of the oscillator. The SIT9005ACU1G-28SC also includes control logic which allows programming of frequency and voltage gain via I2C bus interface.
The SIT9005ACU1G-28SC also has a built-in PLL which helps to reduce jitter and improve performance. The PLL multiplies the fundamental frequency of the oscillator and synthesizes high-frequency clocks. It also enables Synchronous Clock Synthesis, which allows generation of lower-frequency clocks that are in phase with the master clock output from the oscillator.
The SIT9005ACU1G-28SC also features built-in lowpass, bandpass, and highpass filters to improve the oscillator\'s jitter performance. These filters help to ensure that all frequencies being generated are within the specified bounds, thus maintaining the oscillator\'s output performance. The SIT9005ACU1G-28SC also has an optional Dithering feature, which adds random jitter to the output frequency to improve performance further.
The SIT9005ACU1G-28SC is a highly integrated, high-performance Programmable Oscillator that is ideal for applications requiring high frequency and low jitter. Its built-in PLL and filters ensure that jitter is kept to a minimum and frequencies are accurately generated, making it an ideal solution for many applications.
The specific data is subject to PDF, and the above content is for reference
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