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參數(shù)資料
| 型號： | foa2251 |
| 廠商： | SIEMENS AG |
| 英文描述： | 2.5 Gb/s Laser Driver(2.5 Gb/s激光驅動器) |
| 中文描述： | 2.5 Gb / s的激光驅動器（2.5 Gb / s的激光驅動器） |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 231K |
| 代理商： | FOA2251 |
Semiconductor Group
12
August 98
FOA2251A1
FOA2252A1
LE
LEN
RSTN
in case of
Laser Fault
0
0
1
X
X
0
Vcc<Reset
Threshold Vcc
X
X
X
X
yes
no**
LDOFF
Modulation
Enable***
0
0
0
0
0
1
Bias
Enable***
0
0
0
0
0
1
LF
0
X
X
X
X
1
X
1
X
X
X
0
X
X
1
0
X
1
1
1
1
1
1
0*
0
0
1
0
0
0
Table 1: Laser Diode Currents Enable / Disable Signals
*
**
*** : internal signal
: sink current enabled = Low
: after Power On Delay.
The table shows the static states of these signals. Dynamic changes or delays due to
external delay capacitors are not shown.
Bias current is disabled by setting Bias Enable low, modulation current is disabled by
setting Modulation Enable low.
LE and LEN do not effect LF. This means LF can not be reset by any combination of
these signals.
I
NPUT
S
IGNAL
M
ONITORING
Data Level in
t
ISMDEL
constant High
constant Low
ISM Laser Enable***
LDOFF
Modulation
Enable***
0
0
Bias Enable***
LF
0
0
1
1
0
0
0
0
Table 2: Function of ISM Circuit
*** : internal signal
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|---|---|
| FOA2252A1 | 2.5 Gb/s Laser Driver(2.5 Gb/s激光驅動器) |
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相關代理商/技術參數(shù) |
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|---|---|
| FOA2321BP | 制造商:Infineon Technologies AG 功能描述: |
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| FOA3251 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2.5 Gbit/s Clock and Data Recovery-3R Signal Regeneration |
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