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1 to 340 MHz, Ultra-Low Jitter, ±20 to ±50 ppm, I2C Programmable Oscillator
LoginThe Endura™ SiT3541 is an ultra-low jitter, user-programmable oscillator, engineered to deliver high reliability in aerospace and defense applications. This device utilizes SiTime's unique DualMEMS™ temperature sensing and TurboCompensation™ technology to deliver exceptional dynamic performance in harsh environments, making it:
- Resistant to airflow and thermal shock
- Resistant to mechanical shock and vibration
- Robust against power supply noise
The device supports two in-system programming options:
1) Any-frequency mode to reprogram the clock output to any frequency between 1 MHz to 340 MHz
2) Digitally controlled oscillator (DCO) mode to steer or pull the clock up to ±3200 ppm
Endura SiT3541 is 100% screened through the SiTime Endura™ process flow to provide high reliability.
View related products: 340 to 725 MHz
| "Specs" | "Value" |
|---|---|
| Oscillator Type | I2C/SPI ISP XO-DE |
| Frequency | 1 to 340 MHz |
| Frequency Stability (ppm) | ±20, ±25, ±50 |
| Phase Jitter (rms) | ≤ 0.23 ps |
| Output Type | LVPECL, LVDS, HCSL |
| Operating Temperature Range (°C) | -40 to +85 |
| Pull Range (ppm) | ±25, ±50, ±80, ±100, ±125, ±150, ±200, ±400, ±600, ±800, ±1200, ±1600, ±3200 |
| Voltage Supply (V) | 2.5 to 3.3 |
| Package Type (mm²) | 5.0 x 3.2 10-pin |
| Features | Ultra-low acceleration sensitivity, MIL-STD-55310, MIL-PRF-883, In-System Programmable via I2C/SPI |
| Availability | Production |
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Image: SiT3541 I2C/SPI 5032 11-pin package, top & bottom
In-system programmable from 1 MHz and 340 MHz via I2C/SPI
Digital frequency pulling (DCO) via I2C/SPI
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Output frequency pulling with perfect pull linearity
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13 programmable pull range options to ±3200 ppm
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Frequency pull resolution as low as 5 ppt (0.005 ppb)
Low acceleration sensitivity
- As low as 0.1 ppb/g
Integrated LDO for on-chip power supply noise filtering
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0.05 ps/mV power supply noise rejection (PSNR)
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Reduces BOM by eliminating a LDO
Programmable LVPECL, LVDS, or HCSL output
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Programmable LVPECL, LVDS swing
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LVDS common mode voltage control
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Optimizes signal integrity
Superior reliability
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1 billion hours MTBF
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Lifetime Warranty: Reduces repair costs and field failures due to clock components
- Land mobile radio
- Field communications
- Avionics
- Engine management/control
- Satellite base station
- Ruggedized applications
- Command & control
- UAV communications
- Vehicle comms/telemetry
- Flight computer platform
- Satcom
- GNSS/navigation
Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature
QFN 5032 10-Pins 3D Step Model – Preview oscillator packages in 3D
