參數(shù)資料
型號: MAX3738ETG
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 其它接口
英文描述: 1Gbps to 2.7Gbps SFF/SFP Laser Driver with Extinction Ratio Control
中文描述: SPECIALTY INTERFACE CIRCUIT, QCC24
封裝: 4 X 4 MM, QFN-24
文件頁數(shù): 1/14頁
文件大?。?/td> 403K
代理商: MAX3738ETG
General Description
The MAX3738 is a +3.3V laser driver designed for mul-
tirate transceiver modules with data rates from 1Gbps
to 2.7Gbps. Lasers can be DC-coupled to the
MAX3738 for reduced component count and ease of
multirate operation.
Laser extinction ratio control (ERC) combines the features
of automatic power control (APC), modulation compensa-
tion, and built-in thermal compensation. The APC loop
maintains constant average optical power. Modulation
compensation increases the modulation current in pro-
portion to the bias current. These control loops, com-
bined with thermal compensation, maintain a constant
optical extinction ratio over temperature and lifetime.
The MAX3738 accepts differential data input signals.
The wide 5mA to 60mA (up to 85mA AC-coupled) mod-
ulation current range and up to 100mA bias current
range, make the MAX3738 ideal for driving FP/DFB
lasers in fiber optic modules. External resistors set the
required laser current levels. The MAX3738 provides
transmit disable control (TX_DISABLE), single-point
fault tolerance, bias-current monitoring, and photocur-
rent monitoring. The device also offers a latched failure
output (TX_FAULT) to indicate faults, such as when the
APC loop is no longer able to maintain the average
optical power at the required level. The MAX3738 is
compliant with the SFF-8472 transmitter diagnostic and
SFP MSA timing requirements.
The MAX3738 is offered in a 4mm x 4mm, 24-pin thin
QFN package and operates over the extended -40
°
C to
+85
°
C temperature range.
Applications
Multirate OC-24 to OC-48 FEC Transceivers
Gigabit Ethernet SFF/SFP and GBIC
Transceivers
1Gbps/2Gbps Fibre Channel SFF/SFP and GBIC
Transceivers
Features
Single +3.3V Power Supply
47mA Power-Supply Current
85mA Modulation Current
100mA Bias Current
Automatic Power Control (APC)
Modulation Compensation
On-Chip Temperature Compensation
Self-Biased Inputs for AC-Coupling
Ground-Referenced Current Monitors
Laser Shutdown and Alarm Outputs
Enable Control and Laser Safety Feature
Ordering Information
M
1Gbps to 2.7Gbps SFF/SFP Laser Driver with
Extinction Ratio Control
________________________________________________________________
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.
1
19-3162; Rev 0; 1/04
PART
TEMP
RANGE
PIN-
PACKAGE
PKG
CODE
MAX3738ETG
-40°C to 85°C
24 Thin QFN
T2444-1
BIAS
A
20
V
CC
V
CC
TX_DISABLE
MODTCOMP
T
24
OUT+
A
19
S
G
B
T
G
V
CC
V
CC
MD
M
22
A
21
1
2
3
4
5
6
7
8
9
10
11
12
23
13
14
15
16
17
18
TOP VIEW
THE EXPOSED PADDLE MUST BE SOLDERED TO SUPPLY
GROUND ON THE CIRCUIT BOARD.
IN+
IN-
P
OUT-
M
MAX3738
Pin Configuration
Typical Application Circuit appears at end of data sheet.
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3738ETG+ 功能描述:激光驅(qū)動器 155-4.25Gbps SFF/SFP w/Extinction RC RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube
MAX3738ETG+GD0 功能描述:激光驅(qū)動器 155Mbps to 4.25Gbps SFF/SFP Laser Driver with Extinction Ratio Control RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube
MAX3738ETG+T 功能描述:激光驅(qū)動器 155-4.25Gbps SFF/SFP w/Extinction RC RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube
MAX3738ETG+TGD0 功能描述:激光驅(qū)動器 155Mbps to 4.25Gbps SFF/SFP Laser Driver with Extinction Ratio Control RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube
MAX3738ETG-T 功能描述:激光驅(qū)動器 RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube