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80 to 220 MHz, ±10 to ±50 ppm VCXO
LoginThe SiT3809 is a highly flexible high-frequency MEMS voltage-controlled oscillator (VCXO) with LVCMOS output. This device supports any combination of frequencies (80.000001 to 220 MHz), voltage (1.8 V; 2.5 V to 3.3 V), pull range (±25 ppm to ±1600 ppm) and package (2520, 3225, 5032, 7050). It provides superior pull range linearity and tuning slope consistency (Kv), 10 times better than quartz VCXOs, which results in a simpler PLL and clock synchronization design. The SiT3809 is 100% compatible with legacy quartz devices in footprint and control voltage and therefore replaces crystal VCXO oscillators without any design changes.
Program oscillators to get instant samples, optimized performance, and fast prototyping | Learn More
| "Specs" | "Value" |
|---|---|
| Oscillator Type | VCXO-SE |
| Frequency | 80 to 220 MHz |
| Frequency Stability (ppm) | ±25, ±50 |
| Phase Jitter (rms) | 0.5 ps |
| Output Type | LVCMOS |
| Operating Temperature Range (°C) | -20 to +70, -40 to +85 |
| Pull Range (ppm) | ±25, ±50, ±80, ±100, ±150, ±200 |
| FlexEdgeTM Rise/Fall Time | Yes |
| Voltage Supply (V) | 1.8, 2.5, 2.8, 3.3 |
| Package Type (mm²) | 2.5x2.0, 3.2x2.5, 5.0x3.2, 7.0x5.0 |
| Features | Low Jitter, Field Programmable |
| Availability | Production |
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Image: SiT3809 4-pin package, top & bottom
Extensive programmability
- Frequency from 80 MHz to 220 MHz
- Supply voltage of 1.8 V; 2.5 V to 3.3 V
- Frequency stability from ±10 ppm to ±50 ppm
- Pull range from ±25 ppm to ±1600 ppm:
- Customized specification for optimal system performance
- Readily available products in any specification within the operating range
<1% pull range linearity
- Simpler loop control in software controlled system PLL
- More consistent PLL bandwidth over operating range
- Faster calibration and lock time
- Reduction of modulation harmonics
Superior tuning slope consistency
- Tighter PLL bandwidth and simpler system design
Four industry-standard packages
- 100% drop-in replacement for quartz VCXO without any design changes
4 to 6 weeks lead time
- Reduce inventory overhead
- Mitigate shortage risks
- Telecom equipment
- Wireless base stations
- Networking and communication gears
- Networked video systems and digitizers
- Jitter cleaner
- Networked audio systems
- Instrumentation
- Low-bandwidth analog phase locked loop (PLL)
- FPGA data recovery
Evaluation Boards (Contact SiTime) – SiT6081 (2520) | SiT6082 (3225) | SiT6083 (5032) | SiT6084 (7050)
Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature
Time Machine II Programmer – Program frequency, voltage, stability & more
QFN 2724 4-Pins | QFN 3225 4-Pins | QFN 5032 6-Pins | QFN 7050 6-Pins – Preview packages with QFN 3D step models
