SX1781
SX1781 is PLL Frequency Synthesizer manufactured by SEMTECH.
PLL Frequency Synthesizer with Integrated VCO
ADVANCED MUNICATIONS & SENSING
FINAL
GENERAL DESCRIPTION
The SX1781 is a high-performance low phase noise integer-N frequency synthesizer for wireless munications applications. The circuit embeds a fully integrated PLL (including VCO tank and loop filter), plementary output buffers The divider and power-down settings are programmable via an SPI interface. A Lock Detector pin linked to a squelch function have been designed to ease the software development.
PIN DIAGRAM
Features
Frequency range:1200 to 1400 MHz Frequency step: 250 kHz min. Phase noise: -85 dBc/Hz @ 10 kHz offset Reference spurs: -67 dBc Hopping...
