Datasheet Texas Instruments LMX2492RTWT — Ficha de datos

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Documents LMX2492, LMX2492-Q1
SNAS624B – MARCH 2014 – REVISED MAY 2015 LMX2492/LMX2492-Q1 14 GHz Low Noise Fractional N PLL with Ramp/Chirp Generation
1 Features 3 Description The LMX2492/92-Q1 is a low noise 14 GHz
wideband delta-sigma fractional N PLL with ramp and
chirp generation. It consists of a phase frequency
detector, programmable charge pump, and high
frequency input for the external VCO. The
LMX2492/92-Q1 supports a broad and flexible class
of ramping capabilities, including FSK, PSK, and
configurable piecewise linear FM modulation profiles
of up to 8 segments. It supports fine PLL resolution
and fast ramp with up to a 200 MHz phase detector
rate. The LMX2492/92-Q1 allows any of its registers
to be read back. The LMX2492/92-Q1 can operate
with a single 3.3 V supply. Moreover, supporting up to
5.25 V charge pump can eliminate the need of
external amplifier, leading to a simpler solution with
improved phase noise performance. 1 2 -227 dBc/Hz Normalized PLL Noise …