| Allicdata Part #: | SIT9005ACT1D-25DH-ND |
| Manufacturer Part#: |
SIT9005ACT1D-25DH |
| Price: | $ 4.35 |
| Product Category: | Crystals, Oscillators, Resonators |
| Manufacturer: | SiTime |
| Short Description: | OSC MEMS |
| More Detail: | SSXO LVCMOS 1MHz ~ 141MHz Programmable Oscillator ... |
| DataSheet: |  SIT9005ACT1D-25DH Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | $ 3.91860 |
Specifications
| Frequency Stability: | ±20ppm, ±25ppm, ±50ppm |
| 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: | -2.1%, Down Spread |
| Operating Temperature: | -20°C ~ 70°C |
| Frequency Stability (Total): | -- |
| Series: | SIT9005 |
| Voltage - Supply: | 2.5V |
| Output: | LVCMOS |
| Function: | -- |
| 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, such as SIT9005ACT1D-25DH, are electronic devices aimed at generating a periodic, oscillatory electrical signal. They are used in a wide range of applications from healthcare to aerospace. This article investigates the application field and working principle of SIT9005ACT1D-25DH.
Application Field
SIT9005ACT1D-25DH is an adjustable, digitally programmable PLL (Phase Locked Loop) based voltage-controlled oscillator (VCO) designed for applications in high speed and high frequency communication systems. It is suitable for applications such as GPS, ISM (industrial, scientific, and medical) and satellite communication.The device can be used for the generation of low jitter clocks for clock multiplication and sophisticated frequency synthesizers. The synchronization of electrical timing signals is another application.It has one VCXO (Voltage Controlled Crystal Oscillator) input, one adjustable output and one pull-in range output. The pull-in range output is an adjustable output which can be programmed to a certain range of output frequencies.Working Principle
The SIT9005ACT1D-25DH is a voltage-controlled, programmable oscillator based on a PLL (Phase Locked Loop) architecture. The device uses a digitally controlled VCO and a phase-frequency detector (PFD) to track and lock the input signal coming from a VCXO input.The digitally locked VCO output is then synchronized with the input signal and the phase difference between the two is minimized. The frequency of the VCO is controlled by an external voltage.When the external voltage is changed, the frequency of the VCO is changed accordingly. This change in frequency is then detected by the PFD and the VCO is re-locked to the input signal with the new frequency.The output frequency of the device can be adjusted by changing the external voltage. The pull-in range output is an adjustable output which can also be programmed through a digital interface.Conclusion
In conclusion, the SIT9005ACT1D-25DH is an adjustable, digitally programmable PLL (Phase Locked Loop) based voltage-controlled oscillator (VCO) designed for applications in high speed and high frequency communication systems. The device can be used for the generation of low jitter clocks for clock multiplication and sophisticated frequency synthesizers. It has one VCXO (Voltage Controlled Crystal Oscillator) input, one adjustable output and one pull-in range output. The frequency of the VCO is controlled by an external voltage and the output frequency can be adjusted by changing the external voltage.The specific data is subject to PDF, and the above content is for reference
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