参数资料
| 型号： | MIC3002GML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 25/65页 |
| 文件大小： | 0K |
| 描述： | IC LASER DRIVR 10GBPS 3.6V 24MLF |
| 标准包装： | 1,000 |
| 类型： | 激光二极管控制器（光纤） |
| 数据速率： | 10Gbps |
| 通道数： | 1 |
| 电源电压： | 3 V ~ 3.6 V |
| 电流 - 电源： | 2.3mA |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 24-VFQFN 裸露焊盘，24-MLF? |
| 供应商设备封装： | 24-MLF?（4x4） |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页当前第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页
Micrel, Inc.
Figure 3. Internal Calibration RX Power Linear Approximation
MIC3002
Temperature Offset
In both internal and external calibration, the temperature
offset is set in the temperature reading compensation LUT
(see subsection above). Bit 5 in OMCFG5 (A6:1Ah) must
be set to 1 in order to enable temperature reading
compensation. Since the resolution of that L.U.T. is 0.5oC,
the entered value should be twice the real value. For
example, if the content of the L.U.T. is 0 for all the entries
and the offset is 5oC, then the offset value to be added to
the entries content is 10. The new content of the L.U.T.
entries will be 0+10=10.
C/ ADC Result Registers Reading
The ADC result registers should be read as 16-bit registers
under internal calibration while under external calibration
they should be read as 8-bit or 16-bit registers at the MSB
address. For example, TX power should be read under
internal calibration as 16 bits at address A2h: 66–67 and
under external calibration as 8 bits at address A2h: 66h. 9-
bit temperature results and 12-bit receive power results
should always be read as 16-bit quantities.
RXPOT
A programmable, non-volatile digitally controlled
potentiometer is provided for adjusting the gain of the
receive power measurement signal chain in the analog
domain. Five bits in the RXPOT register are used to set
and adjust the position of potentiometer. RXPOT functions
as a programmable divider or attenuator. It is adjustable in
steps from 1:1 (no divider action) down to 1/32 in steps of
1/32. If RXPOT is set to zero, then the divider is bypassed
completely. There will be no scaling of the input signal, and
the resistor network will be disconnected from the VRX pin.
At all other settings of RXPOT, there will be a 32k ? (typical)
load seen on VRX.
Figure 4. RXPOT Block Diagram
Laser Diode Bias Control
The MIC3002 can be configured to generate a constant bias
current using electrical feedback, or regulate average
transmitted optical power using a feedback signal from a
monitor photodiode, refer to Figure 5. An operational
amplifier is used to control laser bias current via the V BIAS
output. The VBIAS pin can drive a maximum of ±10mA. An
external bipolar transistor provides current gain. The polarity
of the op amp’s output is programmable BIASREF in
OEMCFG1 in order to accommodate either NPN or PNP
transistors that drive common anode and common cathode
laser, respectively. Additionally, the polarity of the feedback
signal is programmable for use with either common-emitter
or emitter-follower transistor circuits.
July 2007
25
M9999-073107-B
hbwhelp@micrel.com or (408) 955-1690
相关PDF资料 |
PDF描述 |
|---|---|
| MIC3003GFL TR | IC FOM MANAGEMENT W/CALIBR 24MLF |
| MIC3003GML TR | IC FOM MANAGEMENT W/CALIBR 24MLF |
| MIC3172BN | IC REG BUCK BOOST INV CUK 8DIP |
| MIC33030-AYHJ TR | IC REG BUCK ADJ 0.4A 10HMLF |
| MIC33050-CYHL TR | IC REG BUCK SYNC 1V 0.6A 12MLF |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC3003 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:FOM Management IC with Internal Calibration |
| MIC3003_11 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:FOM Management IC with Internal Calibration |
| MIC3003AGML | 功能描述:网络控制器与处理器 IC FOM Controller with Internal Calibration RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MIC3003AGML TR | 功能描述:网络控制器与处理器 IC FOM Controller with Internal Calibration RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MIC3003GFL | 功能描述:网络控制器与处理器 IC FOM Controller with Internal Calibration in Ultra Small Package RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
发布紧急采购，3分钟左右您将得到回复。