描述 Description

The MxL608 is a highly integrated, low power silicon tuner IC that targets low-cost digital terrestrial and digital cable Set- Top Box (STB) applications.

The MxL608 supports an input tuning range from 44MHz to 1002MHz. A single-ended 75Ω RF input signal is filtered and converted to a programmable IF output up to 44MHz. The AGC, LO generation, channel selection, and Loop-Through (LT) output functions are completely integrated on the chip, which simplifies board-level design. All functions of the IC can be controlled via an I2C interface. Driver integration is made easy through the use of simple software APIs.

The high level of integration enables a very compact, cost effective design with few external components, low BOM costs, and low power consumption.

?The MxL608 is available in a 4 mm x 4 mm x 0.85 mm3 24-pin QFN package.

特性 Features

·Tuning range from 44MHz to 1002MHz
·Integrated channel filtering requiring no external SAW filter
·Programmable channel bandwidths of 1.7MHz, 5MHz, 6MHz, 7MHz, and 8MHz
·Low power consumption with 3.3V and 1.8V dual-supply operation
·On-chip voltage regulator enables single supply 3.3V operation
·Programmable IF frequency and IF spectrum inversion
·Reference clock output available for re-use by demodulators and additional tuners in multichannel applications
·On-chip RF LT
·High accuracy RSSI
·General purpose open-drain output GPO available for controlling off-chip circuitry
·Integrated on-chip programmable loading capacitors for the reference crystal
·I2C-compatible digital control interface
·RoHS compliant

應(yīng)用 Application

·Digital terrestrial STBs
·Digital cable STBs