参数资料
| 型号： | MIC3003GML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 26/75页 |
| 文件大小： | 0K |
| 描述： | IC FOM MANAGEMENT W/CALIBR 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页第75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.
MIC3003
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, the MIC3003’s 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. MIC3003 APC and Modulation Control
Block Diagram
Figure 7. Transmitter Configurations
Supported by MIC3003
November 2009
26
M9999-111209-C
hbwhelp@micrel.com or (408) 955-1690
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| MIC33153YHJ TR | IC REG BUCK SYNC ADJ 1.2A 14MLF |
| MIC35152WD TR | IC REG LDO ADJ 1.5A TO-252-5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC3020BL | 功能描述:TOOL MINI CRIMPER FOR D SUB RoHS:否 类别:工具 >> 压接器，施用器，压力机 系列:Xcelite® 产品培训模块:Board-to-Wire Connectors 标准包装:1 系列:DF11 工具类型:台式压机，施用器 适用于相关产品:矩形触点，24-28 AWG 特点:- 配用:H1505TR-ND - CONN SOCKET 24-28AWG CRIMP GOLDH1504TR-ND - CONN SOCKET 24-28AWG CRIMP TIN 相关产品:AP105-DF11-2428S(64)-ND - TOOL APPLICATOR DF11 ACCESSORIESAP105-DF11-2428S(63)-ND - TOOL APPLICATOR DF11 ACCESSORIESAP105-DF11-2428S(62)-ND - TOOL APPLICATOR DF11 ACCESSORIESAP105-DF11-2428S(61)-ND - TOOL APPLICATOR DF11 ACCESSORIESCM-105 WITH TRANSFORMER-ND - TOOL AUTO CRIMPING MACHINE 其它名称:*AP105-DF11-2428SQ1139807AQ949366 |
| MIC-3042 | 制造商:ADVANTECH 制造商全称:Advantech Co., Ltd. 功能描述:4U CompactPCI? Enclosure with cPCI Power Supply (CT Bus or PICMG 2.16) |
| MIC-3042A-AE | 制造商:Advantech Co Ltd 功能描述:1U CHASSIS |
| MIC-3042AE | 制造商:ADVANTECH 制造商全称:Advantech Co., Ltd. 功能描述:4U CompactPCI? Enclosure with cPCI Power Supply (CT Bus or PICMG 2.16) |
| MIC-3042B-AE | 制造商:ADVANTECH 制造商全称:Advantech Co., Ltd. 功能描述:4U CompactPCI? Enclosure with cPCI Power Supply (CT Bus or PICMG 2.16) |
发布紧急采购，3分钟左右您将得到回复。