Datasheet > MAX3509_05

MAX3509_05

更新时间： 2024-11-05 04:41:59

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
10页	213K
描述
Upstream CATV Amplifier

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中文翻译

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数据手册

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MAX3509_05 数据手册

19-1700; Rev 1; 6/05

Upstream CATV Amplifier

General Description

Features

The MAX3509 is a programmable power amplifier for

use in CATV upstream applications. The device outputs

up to 66dBmV QPSK through a 1:1 transformer. It fea-

tures variable gain controlled by a 3-wire digital serial

bus. Gain control is available in 1dB steps. The device

operates over a 5MHz to 65MHz frequency range.

ꢀ Ultra-Low Power-Up/Down Transients,

25mV (typ) at 66dBmV Output

ꢀ Single-Supply Operation

ꢀ Output Level Ranges from <12dBmV to 67dBmV

(QPSK)

The MAX3509 offers a transmit-disable mode, which

places the device in a high-isolation state for use

between bursts in TDMA systems. In this mode, all ana-

log functions are shut down, minimizing output noise

and power consumption. When entering and leaving

transmit-disable mode, transients are kept to 25mV

nominal at full gain. In addition, supply current is re-

duced to 7.8mA.

ꢀ Gain Programmable in 1dB Steps

ꢀ Low Transmit Output Noise Floor: -41dBmV

(160kHz BW)

ꢀ Low Transmit-Disable Output Noise: -70dBmV

ꢀ Shutdown Mode

An additional power-down mode is available. Shutdown

mode disables all circuitry and reduces current con-

sumption to less than 1µA.

Ordering Information

The MAX3509 is available in a 20-pin TSSOP-EP pack-

age for the extended-industrial temperature range

(-40°C to +85°C).

PIN-

PACKAGE

PART

TEMP RANGE

MAX3509EUP

-40°C to +85°C

20 TSSOP-EP*

Applications

CATV Status Monitors

MAX3509EUP+

Telephony-Over-Cable

*EP = Exposed paddle.

+Denotes lead-free package.

OPENCATV Set-Top Boxes CATV Infrastructures

Cable Modems

Typical Operating Circuit

Pin Configuration

TOP VIEW

+9V

0.1 F

CC2

+9V

0.1 F

CC1

TXEN

20 SCLK

19 SDA

18 CS

GND1

SHDN

MAX3509

4700pF

CC1

1000pF

OUT

OUT+

OUT-

IN+

IN-

GND1

IN+

17 V

CC2

1:1

4700pF

MAX3509

16 OUT+

15 OUT-

IN-

GND1

+9V

0.1 F

CC2

+9V

0.1 F

CC1

13 GND

12 GND

11 GND

GND1

GND

GND2

GND 10

GND

SHDN

TXEN

SCLK

SDA

EXPOSED PADDLE

LOGIC

INPUTS

TSSOP-EP

*EXPOSED PADDLE

†

Covered by U.S. Patent numbers 5,748,027 and 5,994,955.

________________________________________________________________ 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...10

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与MAX3509_05相关器件

型号	品牌	获取价格	描述	数据表
MAX3509_1	MAXIM	获取价格	Evaluation Kit
MAX3509EUP	MAXIM	获取价格	Upstream CATV Amplifier
MAX3509EUP+	MAXIM	获取价格	Upstream CATV Amplifier
MAX3509EUP+T	MAXIM	获取价格	Narrow Band Medium Power Amplifier, 5MHz Min, 65MHz Max, 1 Func, TSSOP-20
MAX3509EUP-T	MAXIM	获取价格	Narrow Band Medium Power Amplifier, 5MHz Min, 65MHz Max, 1 Func, TSSOP-20
MAX3509EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX3509
MAX350C/D	MAXIM	获取价格	Serially Controlled, Low-Voltage, 8-Channel/Dual 4-Channel Multiplexers
MAX350CAP	MAXIM	获取价格	Serially Controlled, Low-Voltage, 8-Channel/Dual 4-Channel Multiplexers
MAX350CAP+	MAXIM	获取价格	Differential Multiplexer, 2 Func, 4 Channel, CMOS, PDSO20, 5.30 X 0.65 MM, SSOP-20
MAX350CAP+T	MAXIM	获取价格	Differential Multiplexer, 2 Func, 4 Channel, CMOS, PDSO20, SSOP-20

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