| Allicdata Part #: | SIT3821AI-1D-33EY-ND |
| Manufacturer Part#: |
SIT3821AI-1D-33EY |
| Price: | $ 17.50 |
| Product Category: | Crystals, Oscillators, Resonators |
| Manufacturer: | SiTime |
| Short Description: | OSC PROG LVPECL 3.3V EN/DS SMD |
| More Detail: | VCXO LVPECL 1MHz ~ 220MHz Programmable Oscillator ... |
| DataSheet: |  SIT3821AI-1D-33EY Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | $ 15.75000 |
| 10 +: | $ 14.09250 |
| 50 +: | $ 10.77640 |
| 100 +: | $ 9.94742 |
| 500 +: | $ 6.96320 |
Specifications
| Frequency Stability: | ±10ppm |
| Height: | 0.039" (1.00mm) |
| Size / Dimension: | 0.276" L x 0.197" W (7.00mm x 5.00mm) |
| Package / Case: | 6-SMD, No Lead |
| Mounting Type: | Surface Mount |
| Ratings: | -- |
| Current - Supply (Max): | 69mA |
| Spread Spectrum Bandwidth: | -- |
| Operating Temperature: | -40°C ~ 85°C |
| Frequency Stability (Total): | -- |
| Series: | SiT3821 |
| Voltage - Supply: | 3.3V |
| Output: | LVPECL |
| Function: | Enable/Disable |
| Available Frequency Range: | 1MHz ~ 220MHz |
| Programmable Type: | Programmed by Digi-Key (Enter your frequency in Web Order Notes) |
| Type: | VCXO |
| Base Resonator: | MEMS |
| Part Status: | Active |
| Packaging: | Bulk |
Description
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Programmable oscillators offer significant power, control, and flexibility when compared to traditional oscillators due to the added benefits that open loop and closed loop oversampling strategies bring to the table. The SIT3821AI-1D-33EY is a prime example of the increased functionality offered by programmable oscillators. This oscillator combines the best of both worlds, offering high stability and frequency accuracy in a single chip solution.
Overview
The SIT3821AI-1D-33EY is a versatile programmable oscillator that offers a wide range of frequencies. This oscillator operates up to 1.2 GHz and offers high frequency stability and accuracy while maintaining low power consumption. It features a high resolution PLL synthesizer with an on-chip preamplifier, an adjustable output voltage of 0.3 to 2.4 volts, and an adjustable output drive impedance of up to 60Ω. The SIT3821AI-1D-33EY also includes digital control, allowing the user to easily customize their oscillator settings and automate tuning tasks.Application
The SIT3821AI-1D-33EY is designed to be used in a variety of applications, such as industrial and consumer electronics, radio frequency (RF) communications, data acquisition, test and measurement, aerospace, automotive, and medical. Its adjustable output voltage and output drive impedance make it suitable for a wide range of frequency signals. Additionally, its preamplifier enables it to handle input frequencies up to 1.2 GHz, allowing it to be used for high frequency applications.Working Principle
The SIT3821AI-1D-33EY utilizes a phase-locked loop (PLL) to generate its output frequency. A PLL is an electronic circuit that synchronizes a signal’s frequency to an input reference. The oscillator contains two circuits, one with a voltage-controlled oscillator (VCO) and one with a phase comparator. The phase comparator circuitry compares the signal generated by the VCO to the reference frequency and produces an output signal which is used to control the frequency of the VCO. This feedback loop is how the oscillator is able to remain in sync with the reference frequency. The SIT3821AI-1D-33EY also includes an integrated preamplifier which helps to amplify the input signal and provide improved signal fidelity. The preamplifier is adjustable and can be used to effectively lower the overall noise floor of the oscillator.Conclusion
The SIT3821AI-1D-33EY is a versatile programmable oscillator that provides high frequency stability and accuracy in a power efficient design. It is suitable for a wide range of applications, from industrial and consumer electronics to high frequency communications. Additionally, the adjustable output voltage and drive impedance, combined with the integrated preamplifier, make it an excellent choice for those who require reliable and accurate oscillator performance.The specific data is subject to PDF, and the above content is for reference
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