General Description

The MAX2108 is a low-cost direct-conversion tuner IC designed for use in digital direct-broadcast satellite (DBS) television set-top box units and microwave links. Its direct-conversion architecture reduces system cost compared to devices with IF-based architectures.

Features

♦ Low-Cost Architecture

♦ Operates from Single +5V Supply

♦ On-Chip Quadrature Generator, Dual-Modulus Prescaler (/32, /33)

♦ Input Levels: -20dBm to -70dBm per Carrier

♦ Over 50dB RF Gain-Control Range

♦ 10dB Noise Figure at Maximum Gain

♦ +8dBm IIP3 at Minimum Gain

Applications

DirecTV, PrimeStar, EchoStar DBS Tuners

DVB-Compliant DBS Tuners

Cellular Base Stations

Wireless Local Loop

Broadband Systems

LMDS

Microwave Links