ADI LTC6946IUFD-4#PBF

The LTC6946 is a high performance, low noise, 6.39GHz phase- locked loop (PLL) with a fully integrated VCO, including a reference divider, phase- frequency detector (PFD) with phase- lock indicator, ultralow noise charge pump, integer feedback divider, and VCO output divider. The charge pump contains selectable high and low voltage clamps useful for VCO monitoring. The integrated low noise VCO uses no external components. It is internally calibrated to the correct output frequency with no external system support. The part features a buffered, programmable VCO output divider with a range of 1 through 6, providing a wide frequency range.

• Low Noise Integer-N PLL with Integrated VCO
• 226dBc/Hz Normalized In-Band Phase Noise Floor
• 274dBc/Hz Normalized In-Band 1/f Noise
• 157dBc/Hz Wideband Output Phase Noise Floor
• Excellent Spurious Performance
• Output Divider (1 to 6, 50% Duty Cycle)
• Output Buffer Muting
• Low Noise Reference Buffer
• Charge Pump Current Adjustable from 250μA to 11.2mA
• Configurable Status Output
• SPI Compatible Serial Port Control
• PLLWizard Software Design Tool Support

• Wireless Base Stations (LTE, WiMAX, W-CDMA, PCS)
• Broadband Wireless Access
• Test and Measurement