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| 型号： | MAX3646ETG+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC LSR DRVR 622MBPS 3.63V 24TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 类型： | 激光二极管驱动器（光纤） |
| 数据速率： | 622Mbps |
| 通道数： | 1 |
| 电源电压： | 2.97 V ~ 3.63 V |
| 电流 - 电源： | 47mA |
| 电流 - 调制： | 85mA |
| 电流 - 偏置： | 100mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
| 产品目录页面： | 1422 (CN2011-ZH PDF) |
19-3161; Rev 2; 6/11
ATION
EVALU
AVAILA
KIT
BLE
155Mbps to 622Mbps SFF/SFP
Laser Driver with Extinction Ratio Control
General Description
The MAX3646 is a +3.3V laser driver designed for mul-
tirate transceiver modules with data rates from
155Mbps to 622Mbps. Lasers can be DC-coupled to
the MAX3646 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 MAX3646 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 MAX3646 ideal for driving FP/DFB
lasers in fiber optic modules. External resistors set the
required laser current levels. The MAX3646 provides
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
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 MAX3646 is
PART
MAX3646ETG
MAX3646ETG-T
MAX3646ETG+
MAX3646ETG+T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
24 Thin QFN-EP*
24 Thin QFN-EP*
24 Thin QFN-EP*
24 Thin QFN-EP*
compliant with the SFF-8472 transmitter diagnostic and
SFP MSA timing requirements.
+Denotes a lead-free/RoHS-compliant package.
*EP = Exposed pad.
The MAX3646 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-3 to OC-12 FEC Transceivers
125Mbps Ethernet SFP, GBIC, and 1 x 9
T = Tape and reel.
TOP VIEW
Pin Configuration
Transceivers
24
23
22
21
20
19
MODTCOMP 1
V CC 2
IN+ 3
18 MD
17 V CC
16 OUT+
IN- 4
MAX3646
15 OUT-
Typical Application Circuit appears at end of data sheet.
V CC 5
TX_DISABLE 6
*EP
14 V CC
13 BIAS
7
8
9
10
11
12
*THE EXPOSED PADDLE MUST BE SOLDERED TO SUPPLY
GROUND ON THE CIRCUIT BOARD.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3646ETG+ | 功能描述:激光驱动器 155-622Mbp SFF/SFP RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3646ETG+C86 | 功能描述:激光驱动器 155Mbps to 622Mbps SFF/SFP Laser Driver with Extinction Ratio Control RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3646ETG+D | 制造商:Maxim Integrated Products 功能描述:LASER DRVR FP/DFB 0.622GBPS 1CH 24TQFN - Rail/Tube |
| MAX3646ETG+T | 功能描述:激光驱动器 155-622Mbp SFF/SFP RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3646ETG+TC86 | 制造商:Maxim Integrated Products 功能描述:LOW-COST 155MBPS LASER DRIVER WITH EXTINCTION RATIO CONTROL - Tape and Reel |
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