FCO-3P-UJ Ultra-Low Jitter Oscillator | 3.2×2.5mm
SMD 3.2x2.5mm, 0.8ps typ., 1.5ps max (12kHz–20MHz)
FEATURE
FCO-3P-UJ is a high-performance, ultra-low jitter CMOS oscillator in a compact 3.2×2.5mm package. It supports a wide programmable frequency range of 10MHz to 250MHz with a typical RMS jitter of just 0.8ps. Engineered for high-speed data and communication systems, it provides robust signal integrity for demanding applications such as Ethernet, servers, and FPGA timing.
Product Description
FCO-3P-UJ Ultra-Low Jitter Programmable Oscillator (3.2×2.5mm)
Key Features
- Frequency range: 10MHz to 250MHz (programmable)
- Output type: CMOS
- Ultra-low RMS phase jitter: 0.8ps typ., 1.5ps max (12kHz–20MHz)
- Supply voltages: 2.5V or 3.3V
- Frequency stability: ±25ppm or ±50ppm (up to –40~85°C)
- Start-up time: ≤10ms
- Duty cycle: 45%–55%
- Enable/disable via tri-state control (Pin 2)
- Standby current: Max 18mA
- Aging rate: ±3ppm/year
Recommended Applications
- Gigabit Ethernet and high-speed network equipment
- Enterprise servers and storage systems
- SAS/SATA interfaces
- Microprocessor, DSP, and FPGA clocking
- Broadband access, smart grid control
Electrical Characteristics

Package Dimension

Design Recommendations
Place a 0.1μF ceramic bypass capacitor between Vdd and GND as close to the device as possible to minimize power noise and maintain signal integrity. Follow the recommended PCB layout for thermal stability and mechanical reliability.
For full datasheets or engineering support, visit www.fujicrystal.com or contact us at FCom@fujicrystal.com.
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