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參數(shù)資料
| 型號(hào)： | SML2120N |
| 廠商： | Summit Microelectronics, Inc. |
| 英文描述： | Programmable Adaptive Laser Power Controller with Dual Lookup Tables |
| 中文描述： | 可編程控制器自適應(yīng)激光功率雙查找表 |
| 文件頁數(shù)： | 14/32頁 |
| 文件大?。?/td> | 1196K |
| 代理商： | SML2120N |
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Applications Information
SML2120
14
2066 6.3 1/22/04
Summit Microelectronics
Device configuration and access is simplified using the
SML2120 graphical user interface (GUI) software available
from the Summit website (www.summitmicro.com). This
software utilizes a programming dongle (SMX3200)
connected to the parallel port of a PC to read and write the
device.Compatible Laser Drivers
Compatible Laser Drivers
The SML2120 is compatible with a wide array of laser
drivers from many different manufacturers. The SML2120
controls the power, biasing and modulation current
independent of the data rate of the laser driver. Therefore, it
can be applied with drivers that operate at sub-GHz,
2.5GHz, 10GHz and 40GHz rates. An example application
for an electro-absorptive modulated laser is shown in
Figure 8. The SML2120 interfaces to the laser module
thermistor, monitor diode and laser diode to control bias and
modulation levels over temperature.
Another application example is shown in Figure 9. Here,
the SML2120 is shown controlling a laser diode and an
external thermistor. The thermistor output is monitored and
also buffered to drive the external temperature pin which is
connected to one of the LUTs on the SML2120. Also shown
are the optional connections for dual supply operation and
connections to the SMX3200 programmer header.
Table 4. SML2120 Access Types
Slave
Address
A0
(Address bit 8)
Access Type
1001
0
Read/Write Status registers
1
Read A/D converter
1010
0
General Purpose E
2
PROM
1
Configuration registers
1011
0
Read/Write Lookup Table 0
1
Read/Write Lookup Table 1
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