SiT3809
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Field Programmable | Learn More
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.
- FlexEdgeTM Rise/Fall Time
- Yes
- Frequency
- 80 to 220 MHz
- Frequency Stability (ppm)
- ±25, ±50
- Operating Temperature Range (°C)
- -20 to +70, -40 to +85
- Oscillator Type
- VCXO-SE
- Output type
- LVCMOS
- Package Type (mm²)
- 2.5x2.0, 3.2x2.5, 5.0x3.2, 7.0x5.0
- Phase Jitter (RMS)
- 0.5 ps
- Pull Range (ppm)
- ±25, ±50, ±80, ±100, ±150, ±200
- Features
- Low Jitter, Field Programmable
- Voltage Supply (V)
- 1.8, 2.5, 2.8, 3.3
- Availability
- Production
Applications
- 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
Features & Benefits
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
IBIS Models
| LVCMOS | IBIS | 1.8V | SiT3809 (LVCMOS, 1.8 V) |
| LVCMOS | IBIS | 2.5V | SiT3809 (LVCMOS, 2.5V) |
| LVCMOS | IBIS | 2.8V | SiT3809 (LVCMOS, 2.8 V) |
| LVCMOS | IBIS | 3.3V | SiT3809 (LVCMOS, 3.3 V) |
| LVCMOS | IBIS | 1.8V | SiT3907 (LVCMOS, 1.8 V) |