80 to 220 MHz, ±10 to ±50 ppm VCXO
The 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.
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| 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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Four industry standard footprints for drop-in replacement of quartz VCXOs without any board changes
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
Eval Boards (Contact SiTime) – SiT6081EB (2520) | SiT6082EB (3225) | SiT6083EB (5032) | SiT6084EB (7050)
Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature
Time Machine II Programmer – Program frequency, voltage, stability & more
QFN 5032 6-Pins | QFN 7050 6-Pins | QFN 2724 4-Pins | QFN 3225 4-Pins – Preview packages with QFN 3D step models