- 您现在的位置：买卖IC网 > PDF目录20060 > MIC3003GFL (Micrel Inc)IC FOM MANAGEMENT W/CALIBR 24 ML PDF资料下载
参数资料
| 型号： | MIC3003GFL |
| 厂商： | Micrel Inc |
| 文件页数： | 26/74页 |
| 文件大小： | 0K |
| 描述： | IC FOM MANAGEMENT W/CALIBR 24 ML |
| 标准包装： | 100 |
| 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?（3x3） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
| 其它名称： | 576-3776-5 |
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页第25页当前第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页第66页第67页第68页第69页第70页第71页第72页第73页第74页
Micrel, Inc.
Furthermore, the reference level for the APC circuit is
selectable to accommodate electrical, i.e., current
feedback, or optical feedback via a monitor photodiode.
Finally, any one of seven different internal feedback
resistors can be selected. This internal resistor can be
used alone or in parallel with an external resistor. This
wide range of adjustability (50:1) accommodates a wide
range of photodiode current, i.e., wide range of
transmitter output power. The APC operating point can
be kept near the mid-scale value of the APC DAC,
insuring maximum SNR, maximum effective resolution
for digital diagnostics, and the widest possible DAC
adjustment range for temperature compensation, etc.
See Figure 6.
The APCCAL bit in OEMCAL0 is used to turn the APC
function on and off. It will be turned on in the MIC3003’s
default state as shipped from the factory. When the APC
is on, the value in the selected APCSETx register is
added to the signed compensation value taken from the
APC look-up table and loaded into the V BIAS DAC. When
the APC is off, the V BIAS DAC may be written directly via
the V BIAS register, bypassing the look-up table entirely.
This provides direct control of the laser diode bias during
setup and calibration. In either case, the V BIAS DAC
setting is reported in the APCDAC register.
MIC3003GFL
Figure 6. Programmable Feedback Resistor
Laser Modulation Control
As shown in Figure 5, a temperature-compensated DAC
is provided to set and control the laser modulation
current via an external laser driver circuit. The MODREF
bit in OEMCFG0 selects whether the V MOD DAC output
swings up from ground or down from V DD . If the laser
driver requires a voltage input to set the modulation
current, V MOD output can drive it directly. If a current
input is required, a fixed resistor can be used between
the driver and the V MOD output. Several different
configurations are possible as shown in Figure 8.
When the APC is on, i.e., the APCCAL bit in OEMCAL0
is set to 0, the value corresponding to the current
temperature is taken from the MODLUT look-up table,
added to the selected MODSETx register, and loaded
into the V MOD DAC. When the APC is off, the
compensation value in V MOD is loaded directly into the
V MOD DAC, bypassing the look-up table entirely. This
provides for direct modulation control for setup and
calibration.
Figure 5. APC and Modulation Control
Block Diagram
Figure 7. Transmitter Configurations
Supported by MIC3003
July 2010
26
M9999-072910-A
hbwhelp@micrel.com or (408) 955-1690
相关PDF资料 |
PDF描述 |
|---|---|
| NCP694D08HT1G | IC REG LDO 0.8V 1A SOT-89-5 |
| RMC40DRTS | CONN EDGECARD 80POS DIP .100 SLD |
| GBM15DTBS | CONN EDGECARD 30POS R/A .156 SLD |
| VE-27H-CW-S | CONVERTER MOD DC/DC 52V 100W |
| VI-BWK-CV-S | CONVERTER MOD DC/DC 40V 150W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC3003GFL TR | 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 |
| MIC3003GFLTR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:FOM Management IC with Internal Calibration |
| MIC3003GML | 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 |
| MIC3003GML 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 |
| MIC3003GML-EVAL | 制造商:Micrel Inc 功能描述:FOM CONTROLLER WITH INTERNAL C |
发布紧急采购，3分钟左右您将得到回复。