Skyworks Solutions Si549 Ultra Series Crystal Oscillator
Product Overview
The Skyworks Solutions Si549 Ultra Series Crystal Oscillator is an I2C programmable clock generator utilizing advanced 4th generation DSPLL technology. It delivers ultra-low jitter (95 fs Typ RMS) and low phase noise clock signals across a wide frequency range of 0.2 to 1500 MHz with <1 ppb resolution. This oscillator is ideal for applications requiring precise and stable clocking, including high-speed networking (100G/200G/400G OTN, coherent optics, PAM4, 10G/40G/100G optical ethernet), broadcast video (3G-SDI/12G-SDI/24G-SDI), servers, switches, storage, search acceleration, test and measurement, and FPGA/ASIC clocking. Its on-chip power supply filtering provides excellent power supply noise rejection, simplifying integration into noisy systems. The Si549 offers a simplified supply chain with custom frequency samples available in 1-2 weeks.
Product Attributes
- Brand: Skyworks Solutions
- Series: Ultra Series
- Technology: DSPLL
- Programmability: I2C
- Package Options: 2.5x3.2 mm, 3.2x5 mm, 5x7 mm
Technical Specifications
| Parameter | Symbol | Test Condition/Comment | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Temperature Range | TA | 40 | 85 | C | ||
| Frequency Range (LVPECL, LVDS, CML) | FCLK | 0.2 | 1500 | MHz | ||
| Frequency Range (HCSL) | FCLK | 0.2 | 400 | MHz | ||
| Frequency Range (CMOS, Dual CMOS) | FCLK | 0.2 | 250 | MHz | ||
| Supply Voltage | VDD | 3.3 V | 3.135 | 3.3 | 3.465 | V |
| Supply Voltage | VDD | 2.5 V | 2.375 | 2.5 | 2.625 | V |
| Supply Voltage | VDD | 1.8 V | 1.71 | 1.8 | 1.89 | V |
| Ultra Low Jitter | RMS (12 kHz 20 MHz) | 95 | 150 | fs | ||
| Frequency Resolution | <1 | ppb | ||||
| Power Supply Noise Rejection (PSNR) | Typ | 80 | dBc | |||
| I2C Interface Speed | 100 | 400 | 1000 | kbps | ||
| Frequency Stability Grade A | Total Stability | 50 | 50 | ppm | ||
| Frequency Stability Grade B | Total Stability | 25 | 25 | ppm | ||
| Frequency Stability Grade C | Total Stability | 20 | 20 | ppm |
2411041556_SKYWORKS-549FCHC002449BCGR_C22248123.pdf
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