| Allicdata Part #: | SIT9002AC-28H25DD-ND |
| Manufacturer Part#: |
SIT9002AC-28H25DD |
| Price: | $ 19.44 |
| Product Category: | Crystals, Oscillators, Resonators |
| Manufacturer: | SiTime |
| Short Description: | OSC PROG LVDS CTR SPRD 2.5V SMD |
| More Detail: | XO (Standard) LVDS 1MHz ~ 220MHz Programmable Osci... |
| DataSheet: |  SIT9002AC-28H25DD Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | $ 17.49510 |
| 10 +: | $ 15.65170 |
| 50 +: | $ 11.96890 |
| 100 +: | $ 11.04820 |
| 500 +: | $ 7.73374 |
Specifications
| Frequency Stability: | ±25ppm |
| 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): | 77mA |
| Spread Spectrum Bandwidth: | ±0.50%, Center Spread |
| Operating Temperature: | -20°C ~ 70°C |
| Frequency Stability (Total): | -- |
| Series: | SiT9002 |
| Voltage - Supply: | 2.5V |
| Output: | LVDS |
| Function: | -- |
| Available Frequency Range: | 1MHz ~ 220MHz |
| Programmable Type: | Programmed by Digi-Key (Enter your frequency in Web Order Notes) |
| Type: | XO (Standard) |
| Base Resonator: | MEMS |
| Part Status: | Active |
| Packaging: | Bulk |
Description
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Programmable oscillators refer to oscillators with a certain frequency adjustment function. By reprogramming, it is used to generate various frequencies and generate various waveforms. SIT9002AC-28H25DD is one of the programmable oscillators, with a wide frequency range and precision frequency output. In terms of performance, it has good temperature stability, low noise and low ripple. This section will analyze the application field and working principle of SIT9002AC-28H25DD.
Application Field of SIT9002AC-28H25DD
- Data Communication
SIT9002AC-28H25DD can output steady signal in the specified frequency range, which is suitable for data communication. You can set the signal mode to amplitude or frequency modulation, or even set to non-continuous signal output state, then use it as data protocol. - Audio Frequency Tuning
By using SIT9002AC-28H25DD, you can easily achieve precision audio frequency tuning. The adjustable frequency range of SIT9002AC-28H25DD is wide enough for more fields. - Industrial Automation
SIT9002AC-28H25DD is widely used in industrial automations, such as drones and robots. By setting the output frequency, the avionics systems can be enabled to move on a regular basis. - General Signal Generation, Radar and Sonar Applications
Due to its low phase noise, wide frequency range and good stability, SIT9002AC-28H25DD is widely used for computer applications and general signal generation, such as radar and sonar applications.
Working Principle of SIT9002AC-28H25DD
SIT9002AC-28H25DD is a special timer with Schmitt trigger circuit. The Schmitt trigger circuit contains a tri-state buffer in the center and two operational amplifiers on both sides. The operational amplifier on the left maintains a specific hysteresis output, while the right operational amplifier produces an inverted hysteresis output.The tri-state buffer is a two-way switch. When it is connected to the low level of power supply, the capacitor begins to charge. When the voltage of the capacitor exceeds the reference voltage, the tri-state buffer will disconnect and the capacitor will discharge until the voltage is lower than the reference voltage. Then, the cycle repeats and the output frequency will be determined by the capacitance of the capacitor.In SIT9002AC-28H25DD, the oscillation mode and frequency range can be set through programming. By comparing the programmable parameters in the oscillator with the adjustable range and resolution of the capacitor, the controller can automatically adjust the range and resolution of the capacitor to achieve an accurate output frequency. In addition, the temperature control module has been added to the oscillator. The temperature control module monitors the temperature of oscillator and adjusts the output frequency as the temperature changes, so as to ensure the accuracy of frequency output.In summary, SIT9002AC-28H25DD is a kind of programmable oscillator with excellent performance. It features wide frequency range, precision frequency output, low noise, low ripple, good temperature stability and so on. The application fields include data communication, audio frequency tuning, industrial automation and general signal generation, radar and sonar applications. The working principle is to use Schmitt trigger circuit and a temperature control module to control the capacitor to produce a steady frequency output.
The specific data is subject to PDF, and the above content is for reference
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