DESCRIPTION

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

· It is user-programmable via I2C commands, offering frequencies from 0.2 to 1500 MHz with <1 ppb resolution.

· The device ensures excellent reliability, frequency stability, and aging performance, with on-chip power supply filtering for superior noise rejection.

· Custom frequency samples are available within 1-2 weeks, utilizing a single crystal and DSPLL IC for frequency generation.

· Factory-configurable options include startup frequency, I2C address, output format, and OE pin location/polarity.

FEATURES

· I2C programmable with <1 ppb resolution across 0.2 to 1500 MHz.

· 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 PSNR and supply noise immunity: –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.

· Available in 2.5x3.2, 3.2x5, 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.