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MAX2105CWI from MAXIM,MAXIM - Dallas Semiconductor

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MAX2105CWI

Manufacturer: MAXIM, MAX

Direct-Conversion Tuner ICs for Digital DBS Applications

Partnumber Manufacturer Quantity Availability
MAX2105CWI MAXIM, MAX 6730 In Stock

Description and Introduction

Direct-Conversion Tuner ICs for Digital DBS Applications The MAX2105CWI is a direct-conversion tuner IC manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (Analog Devices)  
- **Package:** 28-pin Wide SOIC (SO)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage:** 4.5V to 5.5V  
- **Frequency Range:** 950MHz to 2150MHz  
- **Input Signal Level:** -65dBm to -25dBm  
- **Noise Figure:** 12dB (typical)  
- **Gain Control Range:** 64dB (typical)  
- **LO Phase Noise:** -85dBc/Hz @ 10kHz offset  

### **Descriptions:**
The MAX2105CWI is a direct-conversion tuner designed for satellite and terrestrial broadcast applications. It integrates a low-noise amplifier (LNA), mixer, voltage-controlled oscillator (VCO), phase-locked loop (PLL), and baseband amplifiers. It converts RF signals directly to baseband I/Q outputs, eliminating the need for an intermediate frequency (IF) stage.

### **Features:**
- **Direct-Conversion Architecture:** Enables zero-IF operation for simplified receiver design.  
- **Integrated PLL and VCO:** Supports programmable LO frequency synthesis.  
- **On-Chip LNA and Mixer:** Reduces external component count.  
- **I/Q Baseband Outputs:** Provides differential outputs for in-phase (I) and quadrature (Q) signals.  
- **64dB Gain Control:** Adjustable via an external control voltage.  
- **Low Power Consumption:** Optimized for portable and fixed-tuner applications.  
- **Single 5V Supply Operation:** Simplifies power supply design.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Direct-Conversion Tuner ICs for Digital DBS Applications

Alternative Part Number

  • SY87701LHG --: Pin-compatible clock and data recovery IC with similar functionality and supply voltage, suitable drop-in replacement in many designs.
  • VSC8221XJH --: Low-power clock and data recovery device with comparable jitter performance and interface, usable as a functional substitute.
  • DS31400GN --: Clock and data recovery IC offering similar rate support and output options, an alternative when the original is unavailable.
  • MAX2105CWI+ --: Same MAX2105 series in the same 28-pin wide SOIC package, lead-free version, direct drop-in replacement with identical function.
  • MAX2112CTI+ --: Similar Maxim zero-IF tuner IC in the same family of satellite tuners, comparable function and supply, though package and pinout should be verified.
  • MAX2104CWI+ --: Closely related Maxim tuner IC from the same product family with similar architecture, usable as a functional substitute after datasheet comparison.

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