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LMX2240MX from NS,National Semiconductor

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LMX2240MX

Manufacturer: NS

Intermediate Frequency Receiver

Partnumber Manufacturer Quantity Availability
LMX2240MX NS 26833 In Stock

Description and Introduction

Intermediate Frequency Receiver The LMX2240MX is a low-power, dual-band RF transceiver manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Frequency Range:**  
  - 824–849 MHz (Uplink)  
  - 869–894 MHz (Downlink)  
- **Modulation:** Supports π/4 DQPSK (Digital Quadrature Phase Shift Keying).  
- **Supply Voltage:** 2.7V to 3.3V.  
- **Current Consumption:**  
  - Low-power standby mode.  
  - Optimized for battery-operated devices.  
- **Package:** 48-pin TQFP (Thin Quad Flat Pack).  
- **Operating Temperature Range:** -40°C to +85°C.  

### **Descriptions:**  
- Designed for digital wireless communication systems, including IS-54/136 and PHS standards.  
- Integrates a receiver, transmitter, and synthesizer in a single chip.  
- Features a low-IF architecture for improved performance.  

### **Features:**  
- **Dual-Band Operation:** Supports both 800 MHz and 1900 MHz bands (varies by model).  
- **Low Power Consumption:** Ideal for portable and battery-powered applications.  
- **Integrated Synthesizer:** Reduces external component count.  
- **High Integration:** Combines mixer, LNA, VCO, and PLL.  
- **Digital Interface:** Compatible with microcontrollers and DSPs.  

This information is based on the manufacturer's datasheet. For detailed technical parameters, refer to the official documentation.

Application Scenarios & Design Considerations

Intermediate Frequency Receiver

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