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Epson – SG-8503 and SG-8504 Programmable Oscillators

With differential LVPECL outputs, pin-selectable frequency, and high frequency low-jitter

Munich, September 20, 2018 – Epson’s SG-8503 and SG-8504 programmable oscillators (P-SPXOs) with a supply voltage of 2.5 V to 3.3 V SG850xand a wide frequency range from 50 MHz up to 800 MHZ offer extended temperature range -40 °C to +105 °C and standard SPXO stability of ±50 ppm including aging.

SG-8503 and SG-8504 bring the convenience of programmable oscillator technology to high-speed interfaces. Using an Σ-Δ fractional-n PLL, Epson’s SG-8503/4 achieves very low jitter of 0.3 psRMS (12 kHz to 20 MHz). Frequencies are set using OTP (one-time programming). The user can select from 2 or 4 frequencies with 1 or 2 pins.

To support rapid product development, Epson’s SG-8503/4 oscillators can be ordered with 24-hour turnaround from distributors or you can program your own lab using Epson’s SG-Writer II and blanks. Easy-to-use software can be downloaded from Epson’s website.


  • Low Jitter
  • Fast-Turn Prototypes
  • Differential output: LVPECL
  • Temperature range: -40 °C to +105 °C
  • Power Consumption: <90 mA maximum 
  • Wide Frequency Range: 50 MHz - 800 MHz
  • Output Enable (OE) or Standby (ST)

To receive even more information like technical data sheets, samples, EVBs or price information please contact an Ineltek office within your area or contact us at