DESCRIPTION

· The Si549 Ultra Series™ oscillator uses Skyworks Solutions’ 4th generation DSPLL® technology for ultra-low jitter and phase noise clocks.

· It is programmable via I2C commands to generate frequencies from 0.2 to 1500 MHz with <1 ppb resolution.

· The device features on-chip power supply filtering for superior noise rejection and simplified low jitter clock generation in noisy environments.

· It offers a simplified supply chain, enabling custom frequency samples to be shipped within 1-2 weeks.

· Unlike traditional XOs, the Si549 uses a single crystal and DSPLL IC to achieve desired output frequencies, with factory-configurable options for startup frequency, I2C address, output format, and OE pin settings.

FEATURES

· I2C programmable frequency range: 0.2 to 1500 MHz with <1 ppb resolution.

· Ultra-low jitter: 95 fs Typ RMS (12 kHz – 20 MHz).

· Supports up to 4 pin-selectable startup frequencies.

· I2C interface supports 100 kbps, 400 kbps, and 1 Mbps (Fast Mode Plus).

· Excellent power supply noise rejection: –80 dBc Typ.

· Operates at 3.3 V, 2.5 V, and 1.8 V VDD from the same part number.

· Output options include LVPECL, LVDS, CML, HCSL, CMOS, and Dual CMOS.

· Package sizes: 2.5x3.2 mm, 3.2x5 mm, and 5x7 mm.

· Custom samples available with 1-2 week lead times.

APPLICATIONS

· 100G/200G/400G OTN, coherent optics, and PAM4 systems.

· 10G/40G/100G optical ethernet.

· 3G-SDI/12G-SDI/24G-SDI broadcast video.

· Servers, switches, storage, and search acceleration.

· Test and measurement equipment.

· FPGA/ASIC clocking.