Dual Frequency Voltage-Controlled Crystal Oscillator (VCXO) 10 MHz To 1.4 GHz

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Unit Price:$20.09
Minumum Qty: 1
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The Si552 dual-frequency VCXO utilizes Silicon Laboratories’ advanced DSPLL® circuitry to provide a very low jitter clock for all output frequencies. The Si552 is available with any-rate output frequency from 10 to 945 MHz and selected frequencies to 1400 MHz. Unlike traditional VCXOs, where a different crystal is required for each output frequency, the Si552 uses one fixed crystal frequency to provide a wide range of output frequencies. This IC-based approach allows the crystal resonator to provide exceptional frequency stability and reliability. In addition, DSPLL clock synthesis provides superior supply noise rejection, simplifying the task of generating low-jitter clocks in noisy environments typically found in communication systems. The Si552 IC-based VCXO is factory-configurable for a wide variety of user specifications including frequency, supply voltage, output format, tuning slope, and temperature stability. Specific configurations are factory programmed at time of shipment, thereby eliminating the long lead times associated with custom oscillators.

• xDSL
• 10 GbE LAN/WAN
• Low-jitter clock generation
• Optical modules
• Clock and data recovery

Symmetry Electronics is an authorized Silicon Labs distributor.


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Available with any-rate output frequencies from 10945 MHz and selected frequencies to 1.4 GHz
Two selectable output frequencies
3rd generation DSPLL with superior jitter performance
3x better frequency stability than SAW-based oscillators
Internal fixed crystal frequency ensures high reliability and low aging
Available CMOS, LVPECL, LVDS, and CML outputs
3.3, 2.5, and 1.8 V supply options
Industry-standard 5 x 7 mm package and pinout