General Description

The MAX2121 low-cost, direct-conversion tuner IC is designed for satellite set-top and VSAT applications. The device directly converts the satellite signals from the LNB to baseband using a broadband I/Q downconverter. The operating frequency range extends from 925MHz to 2175MHz.

Features

♦ 925MHz to 2175MHz Frequency Range

♦ Monolithic VCO

    Low Phase Noise: -97dBc/Hz at 10kHz

    No Calibration Required

♦ High Dynamic Range: -75dBm to 0dBm

♦ Integrated LP Filters: 123.75MHz

♦ Single +3.3V ±5 Supply

♦ Low-Power Standby Mode

♦ Address Pin for Multituner Applications

♦ Differential I/Q Interface

♦ I2C 2-Wire Serial Interface

♦ Very Small, 5mm x 5mm, 28-Pin TQFN Package

Applications

VSATs