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| 型号： | DS1864T+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/72页 |
| 文件大小： | 0K |
| 描述： | IC LASER CTRLR 1CHAN 5.5V 28TQFN |
| 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（光纤） |
| 通道数： | 1 |
| 电源电压： | 2.97 V ~ 5.5 V |
| 电流 - 电源： | 3mA |
| 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： | 管件 |
| 安装类型： | 表面贴装 |
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Rev 0; 4/06
SFP Laser Controller and
Diagnostic IC
General Description
The DS1864 is an SFF-8472 multisource agreement
(MSA)-compliant laser controller/monitor that is ideal for
SFP optical-transceiver module designs. It controls laser
driver bias and modulation currents through a pair of tem-
perature-controlled current-sink DACs. System diagnos-
tics are provided by monitoring three analog inputs, V CC ,
and temperature through the internal temperature sensor.
The device also contains all EEPROM required by the
SFF-8472 MSA, including all A0h and A2h EEPROM. The
DS1864’s memory map can be configured to be compati-
ble with both the DS1852/DS1856 and the DS1859 mem-
ory maps. Additionally, memory is secured with customer-
configurable two-level password protection.
Eye-safety features are integrated by three fast-trip
comparators that monitor transmit-power high, transmit-
power low, and bias current. The fast-trip comparators
drive a FET driver output to disable the laser in the case
of eye safety violation.
With its integrated laser driver control, system diagnos-
tics, eye-safety features, and internal temperature sen-
sor, the DS1864 provides an ideal solution for SFP
optical transceiver modules by improving system perfor-
mance, reducing board space, and simplifying design.
Applications
SFP Optical Transceiver Modules
Laser Control and Monitoring
Pin Configuration
Features
? SFF-8472 MSA Compatible
? Five Monitored Channels (Temperature, V CC ,
MON1, MON2, MON3)
Three External Analog Inputs (MON1, MON2,
MON3) Support Internal and External
Calibration
Enhanced RSSI Monitoring (26dB Range, 0.5dB
Accuracy)
Scalable Dynamic Range for External Analog
Inputs
Internal Direct-to-Digital Temperature Sensor
Alarm and Warning Flags for All Monitored
Channels
? Two Linear 8-Bit Current-Sink DACs
Two User-Selectable Full-Scale Ranges (0.5mA
or 1.5mA)
Values Changeable Every 2°C
? Three Fast-Trip Comparators (Tx Power High,
Tx Power Low, and Bias Current) for Eye Safety
? Flexible, Two Level Password Scheme Provides
Three Levels of Security
? Provides All Optional and Required SFF-8472
MSA EEPROM (Both A0h and A2h Memory)
? I 2 C-Compatible Serial Interface
? Operates from a 3.3V or 5V Supply
? -40°C to +95°C Operating Temperature Range
? 28-Pin TQFN Package (5mm x 5mm)
Ordering Information
TOP VIEW
PART
DS1864T
TEMP RANGE
-40°C to +95°C
PIN-PACKAGE
28 TQFN (5mm x 5mm)
28
27
26
25
24
23
22
DS1864T+
-40°C to +95°C
28 TQFN (5mm x 5mm)
+ Denotes lead-free only package.
RSELOUT
SDA
SCL
1
2
3
21
20
19
V CC
DAC0
GND
INTX-F
INLOS
IN1
N.C.
4
5
6
7
DS1864
18
17
16
15
DAC1
MON1P
MON1N
N.C.
8
9
10
11
12
13
14
Typical Operating Circuit appears at end of data sheet.
TQFN
5mm x 5mm
______________________________________________ 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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1864T+ | 功能描述:激光驱动器 SFP Laser Controller & Diagnostic IC 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 |
| DS1864T+T&R | 制造商:Maxim Integrated Products 功能描述:DUAL TMP CTRL DAC+MON QFN T&R LF - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LASER CTRLR 1CHAN 5.5V 28TQFN |
| DS1864T+T&R | 功能描述:激光驱动器 SFP Laser Controller & Diagnostic IC 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 |
| DS1865 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:PON Triplexer Control and Monitoring Circuit |
| DS1865_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:PON Triplexer Control and Monitoring Circuit |
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