Product Overview
The Si549 Ultra Series Crystal Oscillator leverages Skyworks Solutions advanced 4th generation DSPLL technology to deliver an ultra-low jitter, low phase noise clock across a wide frequency range (0.2 to 1500 MHz). This I2C programmable device offers <1 ppb resolution and maintains exceptional jitter performance for both integer and fractional frequencies. It boasts excellent reliability, frequency stability, and guaranteed aging performance. The integrated on-chip power supply filtering provides superior power supply noise rejection, simplifying clock generation in noisy systems. Its simplified supply chain allows for custom frequency samples to be shipped within 1-2 weeks. Unlike traditional XOs, the Si549 uses a single crystal and DSPLL IC, enabling factory configuration for various user specifications like startup frequency, I2C address, output format, and OE pin location/polarity, eliminating long lead times associated with custom oscillators.
Product Attributes
- Brand: Skyworks Solutions
- Technology: 4th Generation 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 | FCLK | LVPECL, LVDS, CML | 0.2 | 1500 | MHz | |
| HCSL | 0.2 | 400 | MHz | |||
| CMOS, Dual CMOS | 0.2 | 250 | MHz | |||
| Supply Voltage | VDD | 3.3 V | 3.135 | 3.3 | 3.465 | V |
| 2.5 V | 2.375 | 2.5 | 2.625 | V | ||
| 1.8 V | 1.71 | 1.8 | 1.89 | V | ||
| Phase Jitter (RMS, 12 kHz - 20MHz) | J | All Differential Formats, FCLK 200 MHz | 95 | 150 | fs | |
| CMOS / Dual CMOS Formats, 10 MHz FCLK 250 MHz | 200 | fs | ||||
| Powerup Time | tOSC | Time from 0.9 VDD until output frequency (FCLK) within spec | 10 | ms | ||
| I2C Interface Speed | Standard-Mode, Fast-Mode, Fast-Mode Plus | 100 kbps | 400 kbps | 1 Mbps |
Applications
- 100G/200G/400G OTN, coherent optics, PAM4
- 10G/40G/100G optical ethernet
- 3G-SDI/12G-SDI/24G-SDI broadcast video
- Servers, switches, storage, search acceleration
- Test and measurement
- FPGA/ASIC clocking
2411061628_SKYWORKS-549BAAB000112CCGR_C22320708.pdf
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