The LMX8410L is a high-performance wideband (RF frequency input from 5 to 10 GHz) I/Q
demodulator with an integrated LO and IF amplifier. With IIP3 of 28 dBm and NF of 15 dB (both at
5GHz), it provides excellent dynamic range for high performance applications. The device offers
large complex bandwidth of 2 GHz for high data-rate applications.
The LMX8410L offers an automatic DC offset correction algorithm that reduces the offset
to less than 2 mV. Fine control of gain and phase of I and Q channels is enabled using SPI
interface for achieving high image rejection. Integrated DACs allow correction of IP2 with easy
The LMX8410L has a high level of integration providing high performance while saving
board space and complexity. It integrates a wideband RF input balun, eliminating the need for
external baluns. It integrates a high-performance PLL and VCO, eliminating the need for external LO
and LO driver. The device also integrates an IF amplifier and several low noise LDOs, further
simplifying the board.
The LMX8410L integrates a very low-noise synthesizer, with a PLL FOM of –236 dBc/Hz,
providing up to 56.5-dBc DSB integrated noise at 5 GHz carrier. The LO allows for
phase synchronization across multiple devices. The high-performance synthesizer output can be
brought out to drive another stage or a data converter. The integrated LO can be bypassed for
applications that share a common external LO.
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