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www.rakon.com sales@rakon.com Page 1 of 1 RCX2520Q The RCX2520Q Selectable XO combines small size and low RMS phase jitter with the ability to select output frequency from one of four factory‐configured values. By combining multiple oscillator specifications into one part, the RCX2520Q can be used to reduce unique part count and provide built‐in upgrade paths. Standard Specifications Parameter Min. Typ. Max. Unit Test Condition / Description Number of frequency selections 2 4 2 with E/D, 3 or 4 without E/D function Nominal frequency 1 8 1500 MHz Quad: FS1 = 0, FS0 = 0; Dual: FS0 = 0 Nominal frequency 2 8 1500 MHz Quad: FS1 = 0, FS0 = 1; Dual: FS0 = 1 Nominal frequency 3 8 1500 MHz Quad: FS1 = 1, FS0 = 0 Nominal frequency 4 8 1500 MHz Quad: FS1 = 1, FS0 = 1 Operating temperature range ‐ 40 85 °C Frequency stability (frequency calibration, temperature range, supply and load variations, and 10 years aging) ±35 ±50 ppm ppm ‐20 to 70°C ‐40 to 85°C Supply voltage (VDD) 2.5 3.3 V V With a tolerance of ±5% With a tolerance of ±10% Supply current mA mA mA For LVCMOS For LVPECL For LVDS RMS phase jitter (Integrated from 12kHz to 20MHz) 1.0 0.5 2.0 1.0 ps ps For certain configurations Model Outline and Recommended Pad Layout Features Applications 2.5 x 2.0 mm Up to four frequency selections in one part LVCMOS, LVPECL, or LVDS output options 1.0ps RMS phase jitter (12kHz to 20MHz) Wide frequency range Fast sample turn around Ethernet (10G/40G/100G) Communications Base Stations DSL/ADSL PON/FTTH