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MAX3521EVKIT 货源充足

发布时间:2018/9/25 15:41:00 访问次数:252 发布企业:深圳市烨弘轩电子有限公司

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The MAX3521 is an integrated CATV upstream amplifier IC designed to exceed the DOCSIS 3.0 requirements. It provides a maximum output power level 3dB higher than the DOCSIS 3.0 specification for all modulation standards and channel configurations. The amplifier covers an 5MHz to 85MHz input frequency range (275MHz, 3dB bandwidth). It is capable of transmitting four QPSK modulated carriers, each at +61dBmV, simultaneously within this range. The gain is controlled in 1dB steps over a 63dB range using an SPI 3-wire interface.

The device operates from a single +5V supply. Four power codes are provided to allow maximum supply current to be reduced as determined by distortion requirements. In addition, for each power code, supply current is automatically reduced as gain is reduced while maintaining distortion performance. The supply current drops to 5mA between bursts to minimize power dissipation in transmit-disable mode. Control signal logic levels are 3.3V CMOS.

The MAX3521 is the most recent addition to Maxim’s pin-compatible cable upstream amplifier family, which includes the MAX3518. The MAX3521 is available in a 20-pin TQFN package and operates over the extended industrial temperature range (-40°C to +85°C). MAX3521: Functional Diagram MAX3521: Functional Diagram Enlarge+

Key Features

+5V Supply Voltage

Ultra-Low 25mW Dissipation in Transmit-Disable Mode

63dB Gain-Control Range in 1dB Steps

-65dBc Harmonic Distortion at 67dBmV Output

Small 5mm x 5mm TQFN Package

Low Burst On/Off Transient

275MHz, 3dB Bandwidth

Multiple Power Modes for Optimal Battery Life


MAX3521ETP

MAX3521ETP+T

Applications/Uses

DOCSIS 3.0 Plus Cable Modems and Gateways

Set-Top Boxes

VOIP Modems





The MAX3521 evaluation kit (EV kit) simplifies the testing and evaluation of the MAX3521 DOCSIS 3.0 upstream amplifier. The EV kit is fully assembled and tested at the factory. Standard 50Ω SMA connectors are included on the EV kit for the inputs and outputs to allow quick and easy evaluation on the test bench.

This document provides a list of equipment required to evaluate the device, a straightforward test procedure to verify functionality, a description of the EV kit circuit, the circuit schematic, a list of components for the EV kit, and artwork for each layer of the PCB.

关键特性

Easy Evaluation of the MAX3521

50Ω SMA Connectors

All Critical Peripheral Components Included

Proven PCB Layout

Fully Assembled and Tested

PC Control Software



MAX3521EVKIT

应用

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机顶盒

VoIP调制解调器



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