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MAX2112 - Direct-Conversion Tuner

Description

The MAX2112 low-cost, direct-conversion tuner IC is designed for satellite set-top and VSAT applications.

The IC is intended for 8PSK and Digital Video Broadcast (DVB-S2) applications.

The MAX2112 directly converts the satellite signals from the LNB to baseband using a broadband I/Q downconverter.

Features

  • a VCO autoselect (VAS) function that automatically selects the proper VCO. For multituner.

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Full PDF Text Transcription

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www.DataSheet4U.com 19-0869; Rev 0; 8/07 Complete, Direct-Conversion Tuner for DVB-S2 Applications General Description The MAX2112 low-cost, direct-conversion tuner IC is designed for satellite set-top and VSAT applications. The IC is intended for 8PSK and Digital Video Broadcast (DVB-S2) applications. The MAX2112 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. The device includes an LNA and an RF variable-gain amplifier, I and Q downconverting mixers, and baseband lowpass filters with programmable cutoff frequency control and digitally controlled baseband variable-gain amplifiers.
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