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MAX9985ETX+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX9985ETX+T

Manufacturer: MAXIM

Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch

Partnumber Manufacturer Quantity Availability
MAX9985ETX+T MAXIM 202 In Stock

Description and Introduction

Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch The MAX9985ETX+T is a high-performance, dual-band RF downconverter mixer manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (Analog Devices)  
- **Part Number:** MAX9985ETX+T  
- **Package:** 36-Pin TQFN (Thin Quad Flat No-Lead)  
- **Operating Frequency Range:**  
  - **RF Input:** 1.7GHz to 2.2GHz (High Band) / 0.8GHz to 1.0GHz (Low Band)  
  - **LO Input:** 1.4GHz to 2.0GHz (High Band) / 0.7GHz to 0.9GHz (Low Band)  
  - **IF Output:** 100MHz to 450MHz  
- **Conversion Gain:** 7.5dB (Typical)  
- **Noise Figure:** 9.5dB (Typical)  
- **Input IP3 (Third-Order Intercept):** +20dBm (Typical)  
- **LO Drive Level:** 0dBm (Required)  
- **Supply Voltage:** +3.0V to +5.25V  
- **Current Consumption:** 50mA (Typical)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Description:**
The MAX9985ETX+T is a dual-band, high-linearity RF downconverter mixer designed for wireless base station and infrastructure applications. It integrates two mixers, LO buffers, and an IF amplifier, supporting both high-band and low-band frequency ranges. The device is optimized for high dynamic performance and low noise, making it suitable for demanding RF signal processing.

### **Features:**
- **Dual-Band Operation:** Supports both high-band (1.7GHz–2.2GHz) and low-band (0.8GHz–1.0GHz) RF inputs.  
- **Integrated LO Buffers:** Reduces external component count.  
- **High Linearity:** +20dBm IIP3 for improved signal handling.  
- **Low Noise Figure:** 9.5dB ensures minimal signal degradation.  
- **Single Supply Operation:** Works from +3.0V to +5.25V.  
- **Small Footprint:** 36-pin TQFN package (6mm x 6mm) for space-constrained designs.  
- **RoHS Compliant:** Lead-free and environmentally friendly.  

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

Application Scenarios & Design Considerations

Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch

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