参数资料
| 型号： | DS1873T+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/86页 |
| 文件大小： | 0K |
| 描述： | IC CTLR SFP+ ANLG LDD 28-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 激光二极管控制器 |
| 通道数： | 1 |
| 电源电压： | 2.85 V ~ 3.9 V |
| 电流 - 电源： | 2.5mA |
| 工作温度： | -40°C ~ 95°C |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 托盘 |
| 安装类型： | 表面贴装 |
| 其它名称： | 90-1873T+000 |
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ATION
EVALU
AVAIL
19-4986; Rev 1; 11/09
KIT
ABLE
SFP+ Controller with Analog LDD Interface
General Description
The DS1873 controls and monitors all functions for SFF,
SFP, and SFP+ modules including all SFF-8472 func-
tionality. The DS1873 provides APC loop, modulation
current control, and eye safety functionality. The
DS1873 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.
Six ADC channels monitor V CC , temperature, and four
external monitor inputs (MON1 –MON4) that can be
used to meet all monitoring requirements. MON3 is dif-
ferential with support for common mode to V CC . Two
digital-to-analog (DAC) outputs with temperature-
indexed lookup tables (LUTs) are available for addition-
al monitoring and control functionality.
Applications
SFF, SFP, and SFP+ Transceiver Modules
Pin Configuration
TOP VIEW
Features
? Meets All SFF-8472 Control and Monitoring
Requirements
? Six Analog Monitor Channels: Temperature, V CC ,
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
? Four 10-Bit Delta-Sigma Outputs with 36 Entry
Temperature LUTs
Laser Bias Controlled by APC Loop and
Temperature LUT to Compensate for Tracking
Error
Laser Modulation Controlled by 72-Entry
Temperature LUT
Two Additional DACs Controlled by One
72-Entry and One 36-Entry Temperature LUT
? Digital I/O Pins: Five Inputs, Five Outputs
? Comprehensive Fault-Measurement System with
Maskable Laser Shutdown Capability
? Flexible, Two-Level Password Scheme Provides
21
20
19
18
17
16
15
Three Levels of Security
REFIN 22
N.C. 23
DAC1 24
14
13
12
MON1
MON3N
MON3P
? 120 Bytes of Password-1 Protected Memory
? 128 Bytes of Password-2 Protected Memory in
Main Device Address
? 256 Additional Bytes Located at A0h Slave
DAC2 25
V CC 26
DS1873
11
10
MON4
TXDOUT
Address
? I 2 C-Compatible Interface
LOSOUT 27
OUT1 28
+
*EP
9
8
RSEL
GND
? +2.85V to +3.9V Operating Voltage Range
? -40°C to +95°C Operating Temperature Range
1
2
3
4
5
6
7
? 28-Pin TQFN (5mm x 5mm) Package
Ordering Information
*EXPOSED PAD.
THIN QFN
(5mm × 5mm × 0.8mm)
PART
DS1873T+
DS1873T+T&R
TEMP RANGE
-40°C to +95°C
-40°C to +95°C
PIN-PACKAGE
28 TQFN-EP*
28 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*EP = Exposed pad.
________________________________________________________________ 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 |
|---|---|
| DS1873T+ | 功能描述:ADC / DAC多通道 SFP+ Ctrl w/Analog RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40 |
| DS1873T+T&R | 制造商:Maxim Integrated Products 功能描述:5X5 TQFN SFP+ CTRL W/ANALOG - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC CTLR SFP+ ANLG LDD 28-TQFN |
| DS1873T+T&R | 功能描述:ADC / DAC多通道 SFP+ Ctrl w/Analog RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40 |
| DS1873T+TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:SFP+ Controller with Analog LDD Interface |
| DS1874 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:SFP+ Controller with Digital LDD Interface |
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