DS1874中文资料PDF规格书
DS1874规格书详情
General Description
The DS1874 controls and monitors all functions for SFF, SFP, and SFP+ modules including all SFF-8472 functionality. The combination of the DS1874 with the MAX3798/MAX3799 laser driver/limiting amplifier provides APC loop, modulation current control, and eye safety functionality. The DS1874 continuously monitors for high output current, high bias current, and low and high transmit power to ensure that laser shutdown for eye safety requirements are met without adding external components.
Features
♦ Meets All SFF-8472 Control and Monitoring Requirements
♦ Laser Bias Controlled by APC Loop and Temperature LUT to Compensate for Tracking Error
♦ Laser Modulation Controlled by Temperature LUT
♦ Six Analog Monitor Channels: Temperature, VCC, MON1–MON4
MON1–MON4 Support Internal and External Calibration
Scalable Dynamic Range
Internal Direct-to-Digital Temperature Sensor
Alarm and Warning Flags for All Monitored Channels
♦ Two 9-Bit Delta-Sigma Outputs with 36 Entry Temperature LUTs
♦ Digital I/O Pins: Five Inputs, Five Outputs
♦ Comprehensive Fault-Measurement System with Maskable Laser Shutdown Capability
♦ Flexible, Two-Level Password Scheme Provides Three Levels of Security
♦ 256 Additional Bytes Located at A0h Slave Address
♦ I2C-Compatible Interface
♦ 3-Wire Master to Communicate with the MAX3798/ MAX3799 Laser Driver/Limiting Amplifier
♦ +2.85V to +3.9V Operating Voltage Range
♦ -40°C to +95°C Operating Temperature Range
♦ 28-Pin TQFN (5mm x 5mm) Package
Applications
SFF, SFP, and SFP+ Transceiver Modules
产品属性
- 产品编号:
DS1874T+T&R
- 制造商:
Analog Devices Inc./Maxim Integrated
- 类别:
集成电路(IC) > 激光驱动器
- 包装:
管件
- 类型:
激光二极管控制器
- 电压 - 供电:
2.85V ~ 3.9V
- 工作温度:
-40°C ~ 95°C
- 封装/外壳:
28-WFQFN 裸露焊盘
- 供应商器件封装:
28-TQFN(5x5)
- 安装类型:
表面贴装型
- 描述:
IC LASER CTRLR 3.9V 28TQFN
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MAXIM/美信 |
21+ |
TQFN-28 |
30000 |
公司只做原装正品 |
询价 | ||
Maxim Integrated |
21+ |
28-TQFN(5x5) |
65200 |
一级代理/放心采购 |
询价 | ||
Maxim |
20+ |
na |
65790 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
MAXIM |
QFN |
68900 |
原包原标签100%进口原装常备现货! |
询价 | |||
MAXIM/美信 |
22+ |
QFN |
3000 |
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、 |
询价 | ||
MAX |
12+ |
TQFN28 |
2500 |
原装现货价格有优势量大可以发货 |
询价 | ||
MAXIM |
2016+ |
TQFN28 |
3526 |
假一罚十进口原装现货原盘原标! |
询价 | ||
MAXIM/美信 |
2046+ |
QFN |
9852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
MAXIM |
2017+ |
QFN |
24896 |
深圳代理原装现货进口库存(香港-日本-台湾)开17点增票 |
询价 | ||
MAXIM |
21+ |
TQFN-28 |
6000 |
原装现货 |
询价 |