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參數(shù)資料
| 型號： | AD5255BRU25-RL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | 3-Channel Digital Potentiometer with Nonvolatile Memory |
| 中文描述： | TRIPLE 25K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 512 POSITIONS, PDSO24 |
| 封裝： | MO-153AD, TSSOP-24 |
| 文件頁數(shù)： | 19/20頁 |
| 文件大?。?/td> | 626K |
| 代理商： | AD5255BRU25-RL7 |
AD5255
APPLICATIONS
LASER DIODE DRIVER (LDD) CALIBRATION
The AD5255 can be used with any laser diode driver. Its high
resolution, compact footprint, and superior temperature drift
characteristics make it ideal for optical parameter setting.
Rev. 0 | Page 19 of 20
The ADN2841 is a 2.7 Gbps laser diode driver that uses a
unique control algorithm to manage both the laser average
power and extinction ratio after initial factory calibration. It
stabilizes the laser data transmission by continuously
monitoring its optical power and by correcting the variations
caused by temperature and the laser degradation over time. In
the ADN2841, the I
MPD
monitors the laser diode current.
Through its dual-loop power and extinction ratio control,
calibrated by the AD5255, the internal driver controls the bias
current I
BIAS
and consequently the average power. It also
regulates the modulation current, I
MODP
, by changing the
modulation current linearly with slope efficiency. Any changes
in the laser threshold current or slope efficiency are, therefore,
compensated. As a result, this optical supervisory system
minimizes the laser characterization efforts, enabling designers
to apply comparable lasers from multiple sources.
AD5255
ADN2841
SDA
SCL
PSET
ERSET
ASET
V
CC
V
CC
0
Figure 33. Optical Supervisory System
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD5255BRUZ25 | 制造商:Analog Devices 功能描述:Digital Potentiometer 512POS 25KOhm Triple 24-Pin TSSOP 制造商:Analog Devices 功能描述:DGTL POTENTIOMETER 512POS 25KOHM TRIPLE 24TSSOP - Rail/Tube 制造商:Analog Devices 功能描述:DIGIPOT I2C NV MEMORY 5K SMD 5255 |
| AD5255BRUZ250 | 制造商:Analog Devices 功能描述:Digital Potentiometer 512POS 250KOhm Triple 24-Pin TSSOP 制造商:Analog Devices 功能描述:DGTL POTENTIOMETER 512POS 250KOHM TRIPLE 24TSSOP - Rail/Tube 制造商:Analog Devices 功能描述:DIGIPOT I2C NV MEMORY 250K 5255 |
| AD52579 | 制造商:Analog Devices 功能描述: |
| AD5258 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer |
| AD5258BRMZ1 | 功能描述:IC POT DGTL I2C1K 64P 10MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標準包裝:3,300 系列:WiperLock™ 接片:257 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標準值 150 ppm/°C 存儲器類型:易失 接口:3 線 SPI（芯片選擇） 電源電壓:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-VDFN 裸露焊盤 供應商設備封裝:8-DFN-EP（3x3） 包裝:帶卷 (TR) |
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