220 to 725 MHz Ultra-low Jitter Differential VCXO
LoginThe SiT3373 is a high-frequency, programmable differential VCXO (voltage controlled oscillator) that supports LVPECL, LVDS and HCSL output types with 27 exceptionally linear APR (absolute pull range) options up to ±3145 ppm. Based on SiTime's unique Elite Platform™, this device delivers exceptional dynamic performance of 0.23 ps jitter (typ.), ±10 ppm, and 0.1% pull range linearity with same excellent phase noise. Elite products are engineered to maintain these specs in the presence of common environmental hazards, such as shock, vibration, power supply noise, EMI, and board bending.
The SiT3373 can be factory-programmed to any combination of frequency, stability, voltage and pull range. This programmability enables designers to optimize clock configuration while eliminating the long lead time and customization costs associated with custom quartz VCXOs.
| Oscillator Type | VCXO-DE |
| Frequency | 220 to 725 MHz |
| Frequency Stability (ppm) | ±15, ±25, ±30, ±50 |
| Phase Jitter (rms) | 0.23 ps |
| Output Type | LVPECL, LVDS, HCSL |
| Operating Temperature Range (°C) | -20 to +70, -40 to +85, -40 to +105 |
| Pull Range (ppm) | ±25, ±50, ±80, ±100, ±150, ±200, ±400, ±800, ±1600, ±3200 |
| Voltage Supply (V) | 2.5, 2.8, 3.0, 3.3 |
| Package Type (mm²) | 3.2x2.5, 7.0x5.0, 5.0x3.2 |
| Features | Ultra-low jitter |
| Availability | Production |
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Image: SiT3373 6-pin package, top & bottom
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SiT3373 pin assignments
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SiT3373 block diagram
Exceptional dynamic performance in real-life operating conditions
- 0.23 ps jitter
- ±10 ppm
- 0.1% pull range linearity: Ensures best system performance in hostile environments
Same excellent phase noise under vibration
- Minimizes link and data loss in high-vibration environments
0.05 ps/mV power supply noise rejection (PSNR)
- Reduces BOM with simpler power supply design
3.0 x 2.5 mm package
- Enables small form-factor system with stringent jitter requirement
Flexible programmable features
- 220 to 725 MHz
- 2.25 to 3.63 V
- ±25 to ±3200 ppm pull range
- LVPECL, LVDS, HCSL: Customize oscillator specifications for optimal system performance
Superior reliability
- 1 billion hours MTBF
- Lifetime warranty: Reduces field failures due to clock components and the repair costs
- Cable model termination system (CMTS)
- SONET
- Telecom equipment
- Wireless base stations
- Networked video systems and digitizers
- Jitter cleaner
- Instrumentation
- Networked audio systems
- FPGA data recovery
- SiT3373 245.76MHZ HCSL
- SiT3373 320MHZ HCSL
- SiT3373 329.142857MHZ HCSL
- SiT3373 334.15MHZ HCSL
- SiT3373 491.52MHZ HCSL
- SiT3373 245.76MHZ LVDS
- SiT3373 320MHZ LVDS
- SiT3373 329.142857MHZ LVDS
- SiT3373 334.15MHZ LVDS
- SiT3373 491.52MHZ LVDS
- SiT3373 622.08MHZ LVDS
- SiT3373 625MHZ LVDS
- SiT3373 644.53125MHZ LVDS
- SiT3373 698.812335MHZ LVDS
- SiT3373 245.76MHZ LVPECL
- SiT3373 320MHZ LVPECL
- SiT3373 329.142857MHZ LVPECL
- SiT3373 334.15MHZ LVPECL
- SiT3373 491.52MHZ LVPECL
- SiT3373 622.08MHZ LVPECL
- SiT3373 625MHZ LVPECL
- SiT3373 644.53125MHZ LVPECL
- SiT3373 698.812335MHZ LVPECL
