ADI LT5575EUF#PBF

解调器800MHz ~ 2.7GHz800MHz ~ 2.7GHz

Overview

The LT5575EUF is an 800MHz to 2.7GHz direct conversion quadrature demodulator optimized for high linearity receiver applications. It is suitable for communications receivers where an RF signal is directly converted into I and Q baseband signals with bandwidth up to 490MHz. The LT5575EUF incorporates balanced I and Q mixers, LO buffer amplifi ers and a precision, high frequency quadrature phase shifter. The integrated on-chip broadband transformers provide 50Ω single-ended interfaces at the RF and LO inputs. Only a few external capacitors are needed for its application in an RF receiver system.

The high linearity of the LT5575EUF provides excellent spurfree dynamic range for the receiver. This direct conversion demodulator can eliminate the need for intermediate frequency (IF) signal processing, as well as the corresponding requirements for image filtering and IF filtering. Channel filtering can be performed directly at the outputs of the I and Q channels. These outputs can interface directly to channel-select filters (LPFs) or to baseband amplifiers.

Features

Tube Package
Demodulator Function
800MHz ~ 2.7GHz LO Frequency
800MHz ~ 2.7GHz RF Frequency
12.3dBm P1dB
2dB Gain
15.7dB Noise Figure
155 mA Current - Supply
4.5V ~ 5.25V Voltage - Supply
Surface Mount Mounting Type