Datasheet Texas Instruments LMX2581ESQX/NOPB — 数据表

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SNAS665 – MAY 2015 LMX2581E Wideband Frequency Synthesizer with Integrated VCO
1 Features 3 Description The LMX2581E is a low-noise wideband frequency
synthesizer that integrates a delta-sigma fractional N
PLL, multiple core VCO, programmable output
divider, and two differential output buffers. The VCO
frequency range is from 1880 to 3800 MHz and can
be sent directly to the output buffers or divided down
by even values from 2 to 38. Each buffer is capable
of output power from –3 to +12 dBm at 2700 MHz.
Integrated low-noise LDOs are used for superior
noise immunity and consistent performance. 1 Output Frequency from 50 to 3800 MHz
Input Clock Frequency up to 900 MHz
Phase Detector Frequency up to 200 MHz
Supports Fractional and Integer Modes
–229 dBc/Hz Normalized PLL Phase Noise
–120.8 dBc/Hz Normalized PLL 1/f Noise
–137 dBc/Hz VCO Phase Noise at 1 MHz offset …