MAX3967AE/D

更新时间： 2024-02-19 21:02:33

品牌	Logo	应用领域
美信 - MAXIM		驱动器
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14页	320K
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数据手册

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MAX3967AE/D 数据手册

19-3252; Rev 0; 5/04

2 7 0 Mb p s S FP LED Drive r

Ge n e ra l De s c rip t io n

Fe a t u re s

♦ TX_DISABLE for SFP Compatibility

♦ Single +2.97V to +5.5V Power Supply

♦ Adjustable Temperature Compensation

♦ Adjustable Modulation Current

The MAX3967 is a programmable LED driver for fiber

op tic tra ns mitte rs op e ra ting a t d a ta ra te s up to

270Mbps. The circuit contains a high-speed current dri-

ver with programmable temperature coefficient (temp-

co), adjustments for LED prebias voltage, and a disable

feature. The circuit accepts PECL data inputs, and

operates from a single +2.97V to +5.5V power supply.

♦ Complementary Output Reduces Supply Noise

♦ Programmable LED Prebias Voltage

♦ Available in 24-Pin QFN or Die

The SFP LED driver can switch up to 100mA into typical

hig h-s p e e d lig ht-e mitting d iod e s . As te mp e ra ture

increases, the device’s modulation current increases

with a tempco that is programmable from 2500ppm/°C

to 12,000p p m/°C. The mod ula tion c urre nt is p ro-

grammed with a single external resistor.

The MAX3967’s LED prebias voltage is programmable

from 400mV to 925mV. The prebias circuit produces

peaking current, which improves the LED switching

speed.

Ord e rin g In fo rm a t io n

PART

MAX3967ETG

MAX3967E/D

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

24 Thin QFN

Dice*

Complementary current outputs help to maintain a con-

stant supply current, reducing EMI and supply noise

generated by the transmitter module. The MAX3967 is

available in die form, or in a 4mm x 4mm, 24-pin thin

QFN package.

*Dice are tested and guaranteed only at T = +25°C.

Ap p lic a t io n s

P in Co n fig u ra t io n

Multimode LED Transmitters

Fast Ethernet/FDDI

TOP VIEW

TCNOM

155Mbps LAN ATM Transceivers

ESCON Receivers

SFP Transceivers

MODSET

MON

PB1

PB2

N.C.

MAX3967

Typical Operating Circuits appear at end of data sheet.

PB3

CCOUT

EEOUT

THIN QFN (4mm x 4mm)

THE EXPOSED PAD MUST BE CONNECTED TO GROUND FOR

PROPER THERMAL AND ELECTRICAL PERFORMANCE

________________________________________________________________ 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.

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MAX3967AETG	MAXIM	Interface Circuit, BIPolar, 4 X 4 MM, 0.80 MM HEIGHT, TQFN-24	获取价格
MAX3967AETG+	MAXIM	Interface Circuit, BIPolar, 4 X 4 MM, 0.80 MM HEIGHT, TQFN-24	获取价格
MAX3967D	MAXIM	270Mbps SFP LED Driver	获取价格
MAX3967E	MAXIM	270Mbps SFP LED Driver	获取价格
MAX3967E/D	MAXIM	Interface Circuit, BIPolar, DIE-22	获取价格
MAX3967ETG	MAXIM	270Mbps SFP LED Driver	获取价格