LT5517 - LT5517是40MHz to 900MHz Quadrature Demodulator

LT5517是LINEAR凌力尔特公司的一款I/Q 解调器产品，LT5517是LT5517是40MHz to 900MHz Quadrature Demodulator，本站介绍了LT5517的封装应用图解、特点和优点、功能等，并给出了与LT5517相关的LINEAR元器件型号供参考。

LT5517 - LT5517是40MHz to 900MHz Quadrature Demodulator - I/Q 解调器 - RF和无线 - 凌力尔特

LT5517 - 40MHz to 900MHz Quadrature Demodulator

LT5517 - 40MHz to 900MHz Quadrature Demodulator - Linear Technology（凌力尔特）

功能描述

The LT5517 is a 40MHz to 900MHz quadrature demodulator optimized for high linearity receiver applications where high dynamic range is important. It is suitable for communications receivers where an RF or IF signal is directly converted into I and Q baseband signals with a bandwidth up to 130MHz. The LT5517 incorporates balanced I and Q mixers, LO buffer amplifiers and a precision, broadband quadrature generator derived from an on-chip divide-by-two circuit.

The superior linearity and low noise performance of the LT5517 is achieved across its full frequency range. A well-balanced divide-by-two circuit generates precision quadrature LO carriers to drive the I mixer and the Q mixer. Consequently, the outputs of the I-channel and the Q-channel are well matched in amplitude, and their phases are 90° apart. The LT5517 also provides excellent 50 Ohm impedance matching at the 2XLO port across its entire frequency range.

特点

RF Input Frequency Range: 40MHz to 900MHz

High IIP3: 21dBm at 800MHz

High IIP2: 58dBm at 800MHz

I/Q Gain Mismatch: 0.3dB Max

I/Q Phase Mismatch: 0.7°

Noise Figure: 12.4dB at 800MHz

Conversion Gain: 3.3dB at 800MHz

Baseband Bandwidth: 130MHz

Single Ended, 50 Ohm Matched 2XLO Input

Shutdown Mode

16-Lead QFN (4mm x 4mm) Package with Exposed Pad