MAX2424中文资料900MHz镜频抑制接收器，带有发送混频器数据手册ADI规格书

描述 Description

The MAX2424/MAX2426 highly integrated front-end ICs provide the lowest cost solution for cordless and ISM-band radios operating in the 900MHz band. Both devices incorporate a receive image-reject mixer (to reduce filter cost) as well as a versatile transmit mixer. The devices operate from a +2.7V to +4.8V single power supply, allowing direct connection to a 3-cell battery stack.
The receive path incorporates an adjustable-gain LNA and an image-reject downconverter with 35dB image suppression. These features yield excellent combined downconverter noise figure (4dB) and high linearity with an input third-order intercept point (IIP3) of up to +2dBm.
The transmitter consists of a double-balanced mixer and a power amplifier (PA) predriver that produces up to 0dBm (in some applications serving as the final power stage). It can be used in a variety of configurations, including BPSK modulation, direct VCO modulation, and transmitter upconversion. For devices featuring transmit as well as receive image rejection, refer to the MAX2420/MAX2421/MAX2422/MAX2460/MAX2463 data sheet.
The MAX2424/MAX2426 have an on-chip local oscillator (LO), requiring only an external varactor-tuned LC tank for operation. The integrated divide-by-64/65 dual-modulus prescaler can also be set to a direct mode, in which it acts as an LO buffer amplifier. Four separate power-down inputs can be used for system power management, including a 0.5µA shutdown mode.
The MAX2424/MAX2426 come in a 28-pin SSOP package.

特性 Features

• Receive Mixer with 35dB Image Rejection
• Adjustable-Gain LNA
• Up to +2dBm Combined Receiver Input IP3
• 4dB Combined Receiver Noise Figure
• Optimized for Common Receiver IF Frequencies:
• 10.7MHz (MAX2424)
• 70MHz (MAX2426)
• PA Predriver Provides up to 0dBm
• Low Current Consumption:
• 23mA Receive
• 20mA Transmit
• 9.5mA Oscillator
• 0.5µA Shutdown Mode
• Operates from Single +2.7V to +4.8V Supply

应用 Application

• 无绳电话
• 扩频通信
• 双向寻呼
• 无线网络
• 无线遥感勘测

简介

MAX2424属于集成电路（IC）的驱动器接收器收发器。由制造生产的MAX2424驱动器，接收器，收发器该系列产品的主要功能是提供必需的硬件资源，以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异，可能包括诸如瞬态抑制之类的功能，这些功能对于通信用途可能并非绝对必要，但对于可能的使用环境却是明智之选。