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MAX2105CWI from MAXIM,MAXIM - Dallas Semiconductor

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MAX2105CWI

Manufacturer: MAXIM

Direct-Conversion Tuner ICs for Digital DBS Applications

Partnumber Manufacturer Quantity Availability
MAX2105CWI MAXIM 32 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 specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Package:** 28-pin Wide SOIC (SOICW)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage:** 4.5V to 5.5V  
- **Frequency Range:** 950MHz to 2150MHz  
- **Gain Control Range:** >60dB  
- **Noise Figure:** Typically 12dB  
- **Input IP3 (Third-Order Intercept Point):** +5dBm  
- **LO (Local Oscillator) Phase Noise:** -85dBc/Hz at 10kHz offset  

### **Descriptions:**  
The MAX2105CWI is a direct-conversion tuner designed for satellite and terrestrial digital TV applications. It integrates a low-noise amplifier (LNA), mixer, LO (local oscillator), and baseband amplifiers in a single chip. It supports direct conversion (zero-IF) architecture, eliminating the need for external IF filters.  

### **Features:**  
- **Direct-Conversion Tuner:** Converts RF signals directly to baseband I/Q outputs.  
- **Integrated LNA and Mixer:** Reduces external component count.  
- **Wide Frequency Range:** Supports 950MHz to 2150MHz for satellite and cable applications.  
- **On-Chip LO with PLL:** Includes a synthesizer for frequency generation.  
- **High Linearity:** Suitable for QPSK and QAM demodulation.  
- **Low Power Consumption:** Optimized for portable and set-top box applications.  
- **I/Q Baseband Outputs:** Provides differential outputs for direct ADC interfacing.  

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
Partnumber Manufacturer Quantity Availability
MAX2105CWI MAX 6698 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

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