Skyworks Si545 Ultra Series Crystal Oscillator
The Skyworks Si545 Ultra Series oscillator leverages advanced 4th generation DSPLL technology to deliver an ultra-low jitter, low phase noise clock across any output frequency from 0.2 to 1500 MHz with <1 ppb resolution. It maintains exceptionally low jitter for both integer and fractional frequencies and offers excellent reliability, frequency stability, and guaranteed aging performance. The integrated on-chip power supply filtering provides superior power supply noise rejection, simplifying the generation of low jitter clocks in noisy systems. The Si545 is factory-programmed to user specifications, including frequency, output format, and OE pin location/polarity, enabling custom frequency samples with 1-2 week lead times. This approach utilizes a single crystal and DSPLL IC, eliminating the need for multiple crystals per frequency and ensuring 100% electrical testing of every device.
Key Features
- Any frequency from 0.2 MHz to 1500 MHz
- Ultra low jitter: 80 fs Typ RMS (12 kHz 20 MHz)
- Excellent PSNR and supply noise immunity: 80 dBc Typ
- 7 ppm stability option (40 to 85 C)
- 3.3 V, 2.5 V, and 1.8 V VDD supply operation from a single part number
- Multiple output format options: LVPECL, LVDS, CML, HCSL, CMOS, and Dual CMOS
- Available in industry-standard footprints: 2.53.2 mm, 3.25 mm, 57 mm
- Custom frequency samples available with 1-2 week lead times
Applications
- 100G/200G/400G OTN, coherent optics
- 10G/40G/100G optical ethernet
- 3G-SDI/12G-SDI/24G-SDI broadcast video
- Datacenter
- Test and measurement
- Clock and data recovery
- FPGA/ASIC clocking
Product Attributes
- Brand: Skyworks Solutions
- Technology: DSPLL
- Series: Ultra Series
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 |
| Phase Jitter (RMS, 12kHz - 20MHz) | J | 3.2 x 5 mm, All Differential Formats, FCLK 200 MHz | 80 | 110 | fs | |
| Phase Jitter (RMS, 12kHz - 20MHz) | J | 5 x 7 mm, All Differential Formats, FCLK 200 MHz | 80 | 130 | fs | |
| Phase Jitter (RMS, 12kHz - 20MHz) | J | 2.5 x 3.2 mm, All Differential Formats, FCLK 200 MHz | 90 | 130 | fs | |
| Total Stability (Grade C) | FSTAB | 20 | 20 | ppm | ||
| Rise/Fall Time (20% to 80% VPP, LVPECL/LVDS/CML) | TR/TF | 350 | ps | |||
| Duty Cycle | DC | All formats | 45 | 55 | % | |
| Powerup Time | tOSC | Time from 0.9 VDD until output frequency (FCLK) within spec | 10 | ms | ||
| Package Options | 2.53.2 mm, 3.25 mm, 57 mm | |||||
2411061628_SKYWORKS-545AAA99M6000CCG_C22320703.pdf
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