DUAL FREQUENCY VOLTAGE-CONTROLLED CRYSTAL OSCILLATOR (VCXO)
Si516
DUAL FREQUENCY VOLTAGE-CONTROLLED CRYSTAL OSCILLATOR (VCXO) 100 kHZ TO 250 MHZ
Features
Supports any frequenc...
Description
Si516
DUAL FREQUENCY VOLTAGE-CONTROLLED CRYSTAL OSCILLATOR (VCXO) 100 kHZ TO 250 MHZ
Features
Supports any frequency from
Available CMOS, LVPECL,
100 kHz to 250 MHz
LVDS, and HCSL outputs
Two selectable output frequencies Optional 1:2 CMOS fanout buffer
Low-jitter operation
3.3 and 2.5 V supply options
Short lead times: <2 weeks
Industry-standard 3.2 x 5.0 mm
AT-cut fundamental mode crystal
and 5 x 7 mm package/pinouts
ensures high reliability/low aging Pb-free/RoHS-compliant
High power supply noise rejection Selectable Kv (60, 90, 120,
1% control voltage linearity
150 ppm/V)
Applications
SONET/SDH/OTN PON Low Jitter PLLs xDSL
Description
Broadcast video Telecom Switches/routers FPGA/ASIC clock generation
The Si516 dual frequency VCXO utilizes Silicon Laboratories' advanced PLL technology to provide any frequency from 100 kHz to 250 MHz. Unlike a traditional VCXO where a different crystal is required for each output frequency, the Si516 uses one fixed crystal and Silicon Labs’ proprietary synthesizer to generate any frequency across this range. This IC-based approach allows the crystal resonator to provide enhanced reliability, improved mechanical robustness, and excellent stability. In addition, this solution provides superior control voltage linearity and supply noise rejection, improving PLL stability and simplifying low jitter PLL design in noisy environments. The Si516 is factory-configurable for a wide varie...
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