MAX3503

更新时间： 2024-10-30 23:46:11

品牌	Logo	应用领域
美信 - MAXIM		放大器有线电视
页数	文件大小	规格书
13页	398K
描述
Upstream CATV Amplifier

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数据手册

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MAX3503 数据手册

19-2339; Rev 1; 3/02

Upstream CATV Amplifier

General Description

Features

ꢀ Single 3.3V Supply Operation

The MAX3503 programmable power amplifier is

designed for use in CATV upstream applications. The

MAX3503 drives 61dBmV (QPSK) into a 75Ω load when

driven with a 34dBmV nominal input signal. Both input

and output ports are differential, requiring that an exter-

nal balun be used at the output port. The variable gain

feature provides greater than 56dB of dynamic range,

which is controlled by an SPI™ 3-wire interface. Gain

control is available in 0.5dB steps. The device operates

over a frequency range of 5MHz to 65MHz. The

MAX3503 is internally matched for use with a 1:1 balun.

ꢀ Accurate Gain Control, ±±1d oꢀer ꢁ31d ꢂange

ꢀ Gain Programmable in 0.ꢁ1d Steps

ꢀ -ꢁꢁ1dc Harmonic Distortion at 6ꢁMHz

ꢀ Low durst On/Off Transient

ꢀ High Efficiency: ±82mW at 341dmV Out;

±6mW in Transmit-Disable Mo1e

This device operates from a single 3.3V DC supply and

draws 235mA during transmit (100% duty cycle,

61dBmV out). The bias current is automatically

adjusted, based on the output level to increase efficien-

cy. Additionally, the device can be disabled between

bursts to minimize noise and save power while main-

taining a match at the output port. A shutdown mode is

available to disable all circuitry and reduce current con-

sumption to 5µA (typ).

Ordering Information

PAꢂT

TEMP ꢂANGE PIN-PACKAGE

MAX3503EGP -40°C to +85°C 20 QFN-EP* (5mm × 5mm)

*Exposed pad.

The MAX3503 is available in a 20-pin QFN package.

The device operates in the extended industrial temper-

ature range (-40°C to +85°C).

________________________Applications

Pin Configuration

DOCSIS/EuroDOCSIS and DVB Cable

Modems

TOP VIEW

OpenCable Set-Top Box

Telephony Over Cable

CATV Status Monitor

GND

IN+

GND

IN-

14 OUT+

13 N.C.

12 OUT-

11 N.C.

MAX3503

GND

Typical Operating Circuit appears at end of data sheet.

QFN**

SPI is a trademark of Motorola, Inc.

**NOTE: CORNER GND PINS AND THE EXPOSED PAD MUST BE

SOLDERED TO THE SUPPLY GROUND.

DOCSIS/EuroDOCSIS/OpenCable are trademarks of

CableLabs .

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...13

中文翻译

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与MAX3503相关器件

型号	品牌	获取价格	描述	数据表
MAX3503EGP	MAXIM	获取价格	CATV WIDEBAND AMPLIFIER\|SINGLE\|BIPOLAR\|LLCC\|20PIN\|PLASTIC
MAX3503EGP-T	MAXIM	获取价格	Narrow Band Low Power Amplifier, 5MHz Min, 65MHz Max, 5 X 5 MM, 0.90 MM HEIGHT, QFN-20
MAX3503EVKIT	MAXIM	获取价格	Evaluation Kits for the MAX3503/MAX3505
MAX3505	MAXIM	获取价格	Upstream CATV Amplifier
MAX3505EGP	MAXIM	获取价格	Upstream CATV Amplifier
MAX3505EGP-T	MAXIM	获取价格	暂无描述
MAX3505EVKIT	MAXIM	获取价格	Evaluation Kits for the MAX3503/MAX3505
MAX3507	MAXIM	获取价格	Upstream CATV Amplifier with On-Chip Anti-Alias Filter
MAX3507_1	MAXIM	获取价格	Evaluation Kit
MAX3507EGI	MAXIM	获取价格	Upstream CATV Amplifier with On-Chip Anti-Alias Filter

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