Renesas XK Ultra-low Phase Noise Quartz-based PLL Oscillators
The XK devices, also known as ProXO II, are second-generation high-performance oscillators building upon the XF ProXO series. These devices feature internal regulators for superior PSNR and are available in industry-standard package footprints. Each unit can be factory-programmed with up to three frequencies and/or output types, selectable via a 3-level FS pin. They are designed for demanding applications requiring low phase jitter and high stability.
Product Attributes
- Brand: Renesas
- Product Family: XK (ProXO II)
Technical Specifications
| Feature | Specification |
| Phase Jitter (typical) | 55fs RMS (12kHz to 20MHz) at 156.25MHz |
| Output Frequency Range | 50MHz to 1250MHz |
| Package Options | 1.8 1.4 0.85 mm (1.6 1.2 mm footprint compatible) 2.0 1.6 0.85 mm 2.5 2.0 0.7 mm 3.2 2.5 0.7 mm |
| Supply Voltage Options | 1.8V, 2.5V, 3.3V |
| Output Types | LVDS, CML, HCSL (1.8V, 2.5V, 3.3V) LVPECL (3.3V only) LVCMOS differential (1.8V only) |
| Total Stability (typical) | 25ppm (1.8V) 30ppm (2.5V, 3.3V) |
| Operating Temperature | -40C to +85C |
| Applications | 10G to 800G Ethernet, 100G to 400G OTN, 3G to 24G SDI broadcast video, Servers, Switches, Storage, Accelerators, NICs, HBAs |
| Frequency Select | 3-level FS pin for up to three factory-programmed frequencies/output types |
| Output Enable/Disable | OE pin functionality available |
| Start-up Time (typical) | 15ms |
| Output Enable/Disable Time (typical) | 0.1ms |
2412161840_RENESAS-XK03R156R312R625I_C21503481.pdf
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