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MAX2106 - DBS Direct Downconverter

General Description

The MAX2106 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.

Key Features

  • o Drop-In Replacement for MAX2104 Designs: Requires Only Minor Software Upgrade and Two External Resistor Value Changes o Complete Low-Cost Solution for DBS Direct Downconversion o High Level of Integration Minimizes Component Count o 1MBaud to 45MBaud Operation o Selectable LO Buffer o +5V Single-Supply Operation o 925MHz to 2175MHz Input Frequency Range o On-Chip Quadrature Generator, Dual-Modulus Prescaler (/32, /33) o On-Chip Crystal Oscillator Amplifier o PLL Phase Detector with Gain-Contro.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX2101 6-Bit Quadrature Digitizer
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-1627; Rev 2; 6/03 DBS Direct Downconverter General Description The MAX2106 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 MAX2106 directly tunes Lband signals to baseband using a broadband I/Q downconverter. The operating frequency range spans 925MHz to 2175MHz. The IC includes a low-noise amplifier (LNA) with gain control, I and Q downconverting mixers, lowpass filters with gain and frequency control, a local oscillator (LO) buffer with a 90° quadrature network, and a chargepump-based phase-locked loop (PLL) for frequency control.