LT5558 Overview
Description
The LT®5558 is a direct I/Q modulator designed for high performance wireless applications, including wireless infrastructure. It allows direct modulation of an RF signal using differential baseband I and Q signals.
Key Features
- Direct Conversion from Baseband to RF
- High OIP3: + 22.4dBm at 900MHz
- Low Output Noise Floor at 20MHz Offset: No RF: –158dBm/Hz POUT = 4dBm: –152.7dBm/Hz
- Low Carrier Leakage: –43.7dBm at 900MHz
- High Image Rejection: –49dBc at 900MHz
- Integrated LO Buffer and LO Quadrature Phase Generator
- 50Ω AC-Coupled Single-ended LO and RF Ports
- High Impedance Interface to Baseband Inputs with 2.1V Common Mode Voltage
- 16-Lead QFN 4mm × 4mm Package
