5秒后页面跳转
DS3922 PDF预览

DS3922

更新时间: 2024-11-23 14:58:03
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
11页 347K
描述
High-Speed Current Mirror and Integrated FETs for DC-DC Controller

DS3922 数据手册

 浏览型号DS3922的Datasheet PDF文件第2页浏览型号DS3922的Datasheet PDF文件第3页浏览型号DS3922的Datasheet PDF文件第4页浏览型号DS3922的Datasheet PDF文件第5页浏览型号DS3922的Datasheet PDF文件第6页浏览型号DS3922的Datasheet PDF文件第7页 
EVALUATION KIT AVAILABLE  
DS3922  
High-Speed Current Mirror and  
Integrated FETs for DC-DC Controller  
General Description  
Benefits and Features  
Accurate Burst-Mode RSSI Measurement with Two  
The DS3922 high-speed current mirror integrates high-  
voltage devices necessary for monitoring the burst mode  
receive power signal in avalanche photodiode (APD) bias-  
ing and OLT applications. The device has two small and  
one large gain current mirror outputs to monitor the APD  
current. An adjustable current clamp limits current through  
the APD. The clamp also features an external shutdown.  
An integrated FET is also provided that can be used to  
quickly clamp the high-voltage bias to ground in the case  
of high optical input power. Integrated low-voltage FET  
circuits can be used to create buck, boost, and inverting  
DC-DC converters for efficient laser bias and EML bias  
applications.  
Current Mirror Outputs Improves Dynamic Range  
• -32dBm to -5dBm Optical Input Range  
• ±0.5dB Accuracy  
• Sampling Period as Short as 300ns  
• Pin Discharge Option  
Low-Noise APD Bias with Shutdown Options  
Reduces Receiver Sensitivity  
• 15V to 76V APD Bias  
• External Capacitor Connection for Controlled RC  
Time Constant of APD Voltage Filter  
• Current Clamp with Adjustable Limit and External  
Shutdown with Limit Status  
The DS3922 is available in a 24-pin TQFN package and  
operates over an extended -40°C to +95°C temperature  
range.  
• High-Voltage Switch FET for APD Fast Shutdown  
Supports Additional DC-DC Functions  
• Low-Voltage Synchronous Buck FETs for Efficient  
DFB Bias  
Block Diagram  
• Low-Voltage pMOSFET for Generating Negative  
Bias Voltage for EMLs  
LOW-VOLTAGE  
V
DS3922  
CC  
FET CIRCUITS  
Small Package Reduces Total Solution Size and Cost  
LVCC  
AVCC  
(2.85V TO 3.63V)  
• 3.5mm x 3.5mm, 24-Pin TQFN Package with  
Exposed Pad  
(WITHIN ±0.1V OF  
HVGND AND GND)  
HIGH-VOLTAGE  
AND MIRROR CIRCUITS  
MIRIN  
LVGND  
I
1
AVCC  
4V  
0.8I  
1
0.2I  
1
0.1I  
1
Applications  
●ꢀ AvalancheꢀPhotodiodeꢀ(APD)ꢀMonitoring  
●ꢀ GPONꢀOLT  
●ꢀ 10GPONꢀOLT  
●ꢀ EMLꢀBias  
MIRCAP  
HIGH-POWER DML,  
DFB, LDD, TXVCC  
LVOUT3  
(0 TO 4V)  
OPEN-DRAIN nMOS  
LVCC  
ILIMS  
RLIM  
CURRENT  
LIMIT  
LVGND  
LVGND  
LVIN3  
200µA  
●ꢀ 10GꢀEPON  
TEMP  
LIMIT  
EML NEGATIVE BIAS INVERTING SWITCHER LVIN2  
LVCC  
LVCC  
ISRC/SHDN  
Ordering Information appears at end of data sheet.  
pMOS  
1.8V  
LVOUT2  
(-3.7V TO LVCC)  
OPEN-DRAIN pMOS  
AVCC  
LVGND  
MIROUT  
APDV  
MIRIN  
0.5V/V  
For related parts and recommended products to use with this part, refer  
to www.maximintegrated.com/DS3922.related.  
EML, DFB, APC HIGH-EFFICIENCY BIAS LVIN1  
LVCC LVCC  
MIROUT  
GND  
HVD  
pMOS  
HVGND  
HVG  
LVOUT1  
(0 TO LVCC)  
NONOVERLAP  
DRIVER  
V
CC  
nMOS  
LVGND  
LVGND  
19-7400; Rev 1; 3/15  

与DS3922相关器件

型号 品牌 获取价格 描述 数据表
DS3930 MAXIM

获取价格

RELIABILITY REPORT FOR DS3930, REV A1
DS3930 DALLAS

获取价格

Hex Nonvolatile Potentiometer with I/O and Memory
DS3930 ADI

获取价格

六进制非易失电位器,带有输入/输出和存储器
DS3930E DALLAS

获取价格

Hex Nonvolatile Potentiometer with I/O and Memory
DS3930E+ MAXIM

获取价格

Digital Potentiometer, 2 Func, 16500ohm, 2-wire Serial Control Interface, 256 Positions, P
DS3930E+T&R MAXIM

获取价格

Digital Potentiometer, 2 Func, 16500ohm, 2-wire Serial Control Interface, 256 Positions, P
DS3984 DALLAS

获取价格

4-Channel Cold-Cathode Fluorescent Lamp Controller
DS3984T DALLAS

获取价格

4-Channel Cold-Cathode Fluorescent Lamp Controller
DS3984T+ DALLAS

获取价格

4-Channel Cold-Cathode Fluorescent Lamp Controller
DS3984T+T&R MAXIM

获取价格

Fluorescent Light Controller, 80kHz Switching Freq-Max, 7 X 7 MM, 1 MM HEIGHT, LEAD FREE,