Maxim MAX2106UCM-B50039

Overview

The MAX2106UCM low-cost, direct-conversion tuner IC is designed for use in digital direct-broadcast satellite (DBS) television set-top box units and is a pin-for-pin upgrade for the MAX2104. Its direct-conversion architecture reduces system cost compared to devices with IF-based architectures. The MAX2106UCM directly tunes L-band signals to baseband using a broadband I/Q downconverter. The operating frequency range spans 925MHz to 2175MHz.

♦ Drop-In Replacement for MAX2104 Designs Requires Only Minor Software Upgrade and Two External Resistor Value Changes♦ Complete Low-Cost Solution for DBS Direct Downconversion♦ High Level of Integration Minimizes Component Count♦ 1MBaud to 45MBaud Operation♦ Selectable LO Buffer♦ +5V Single-Supply Operation♦ 925MHz to 2175MHz Input Frequency Range♦ On-Chip Quadrature Generator, Dual-Modulus Prescaler (/32, /33)♦ On-Chip Crystal Oscillator Amplifier♦ PLL Phase Detector with Gain-Controlled Charge Pump♦ Input Levels: -25dBm to -68dBm per Carrier♦ Over 50dB Gain Control Range♦ Noise Figure = 10.2dB; IIP3 = +11.5dBm (at 1550MHz)♦ Automatic Baseband Offset Correction

Features