General Description

The MAX2102/MAX2105† are low-cost direct-conversion tuner ICs designed for use in digital direct-broadcast satellite (DBS) television set-top box units. The direct-conversion architecture reduces system cost compared to devices with IF-based architectures.

Features

♦ Low-Cost Bipolar Design, Lowest Cost Architecture

♦ Operate from a Single +5V Supply

♦ 950MHz to 2150MHz Input Frequency Range*

♦ On-Chip Quadrature Generator, Dual-Modulus Prescaler (/64, /65)

♦ Input Levels

-69dBm to -19dBm per Carrier (MAX2102)

-60dBm to -19dBm per Carrier (MAX2105)

♦ Over 50dB AGC Control Range (MAX2102)

♦ Noise Figure = 13.2dB (MAX2102); IP3 = 6.5dBm (at 1450MHz)

♦ Automatic Baseband Offset Correction

♦ Easy Interface to MAX1002/MAX1003 Dual ADC and Popular Baseband ICs

Applications

DBS Tuners

Wireless Local Loop

DVB-Compliant DBS Tuners

Broadband Systems

Cellular Base Stations

LMDS