Skyworks Solutions Si544 Ultra Series Crystal Oscillator
The Si544 Ultra Series crystal oscillator leverages Skyworks Solutions advanced 4th generation DSPLL technology to deliver ultra-low jitter and low phase noise clock signals across a broad frequency range of 0.2 to 1500 MHz. This I2C programmable device offers <1 ppb resolution, ensuring exceptional frequency accuracy. Its on-chip power supply filtering provides superior power supply noise rejection, making it ideal for noisy environments utilizing switched-mode power supplies. The Si544 simplifies the supply chain by using a single crystal and a DSPLL IC, enabling rapid delivery of custom frequency samples. It is factory-configurable for various user specifications, including startup frequency, I2C address, output format, and OE pin functionality, eliminating long lead times associated with traditional custom oscillators.
Key Features
- I2C programmable to any frequency from 0.2 to 1500 MHz with < 1 ppb resolution
- Very low jitter: 150 fs Typ RMS (12 kHz 20 MHz)
- Configure up to 4 pin-selectable startup frequencies
- I2C interface supports 100 kbps, 400 kbps, and 1 Mbps (Fast Mode Plus)
- Excellent PSNR and supply noise immunity: 80 dBc Typ
- 3.3 V, 2.5 V and 1.8 V VDD supply operation from the same part number
- LVPECL, LVDS, CML, HCSL, CMOS, and Dual CMOS output options
- Available in 2.5x3.2, 3.2x5, and 5x7 mm package options
- Samples available with 1-2 week lead times
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
Product Attributes
- Brand: Skyworks Solutions
- Technology: DSPLL
- Programmability: I2C
Technical Specifications
| Parameter | Symbol | Test Condition/Comment | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Frequency Range | FCLK | LVPECL, LVDS, CML | 0.2 | 1500 | MHz | |
| Frequency Range | FCLK | HCSL | 0.2 | 400 | MHz | |
| Frequency Range | FCLK | CMOS, Dual CMOS | 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 |
| Phase Jitter (RMS, 12kHz - 20MHz) | J | FCLK 100 MHz, LVPECL, HCSL, CML | 150 | 200 | fs | |
| Phase Jitter (RMS, 12kHz - 20MHz) | J | FCLK 100 MHz, LVDS | 150 | 220 | fs | |
| Phase Jitter (RMS, 12kHz - 20MHz) | J | FCLK 100 MHz, CMOS, Dual CMOS | 200 | fs | ||
| Temperature Range | TA | 40 | 85 | C | ||
| Package Options | 2.5x3.2 mm | 3.2x5 mm | 5x7 mm |
2411061616_SKYWORKS-544BBAC000115BCGR_C22264022.pdf
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