MAX3521

PRODUCTION

DOCSIS 3.0 Upstream Amplifier

Industry's Highest Performance Upstream Amplifier for DOCSIS 3.0 advanced Applications

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $1.73

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Overview

+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

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).

Applications

DOCSIS 3.0 Plus Cable Modems and Gateways
Set-Top Boxes
VOIP Modems

Part Models: 2
1ku List Price: Starting From $1.73

Documentation

Data Sheet 1

MAX3521: DOCSIS 3.0 Upstream Amplifier Data Sheet (Rev.0) 08/01/2018

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX3521ETP+	20-LFCSP-5X5X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX3521ETP+T	20-LFCSP-5X5X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Aug 14, 2023 - 2275A WAFER FAB
		pcn_2275a
MAX3521ETP+	PRODUCTION
MAX3521ETP+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

Software Development 1

MAX3521 Amplifier EV Kit Software, 1.0.6

IBIS Model 1

MAX3521 IBIS Model

Evaluation Kits

Evaluation Kit for the MAX3521

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Features and Benefits

Easy Evaluation of the MAX3521
50Ω SMA Connectors
All Critical Peripheral Components Included
Proven PCB Layout
Fully Assembled and Tested
PC Control Software

Product Details

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.