參數(shù)資料
型號(hào)： AK2570
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： Feed Forward APC LSI for LD Module
中文描述： 前饋apc的大規(guī)模集成電路模塊為勞工處
文件頁(yè)數(shù)： 16/27頁(yè)
文件大?。?/td> 292K
代理商： AK2570
ASAHI KASEI
[AK2570]
<MS0115-E-00>
2001/10
16
II) Continuous mode
The alarm circuit compares the input voltage to VPDIN-pin (the monitoring PD signal) and the output voltage
from DA3 (the alarm threshold level). The data for the alarm threshold level is retained in the EEPROM
(EDA3), transferred to RDA3 and converted D to A signal in DA3. At any time, the
‘
H
’
level alarm signal can
be generated and outputted from ALM-pin in the case that the input voltage to VPDIN-pin becomes lower than
the output voltage of DA3.
III) 50Mbps burst transmission mode and 156Mbps burst transmission mode
The alarm circuit compares the input voltage to VPDIN-pin (the monitoring PD signal) and the output voltage
from DA3 (the alarm threshold level). The data for the alarm threshold level is retained in the EEPROM
(EDA3), transferred to RDA3 and converted D to A signal in DA3.
The alarm circuit detects the polarity of the input signal to ENVIN-pin at the constant timing (the detecting
point) from the rising edge (
‘
L
’
à
’
H
’
) of this signal. The alarm circuit outputs the alarm signal (the
‘
H
’
level)
from ALM-pin in the case that the input voltage to VPDIN-pin is lower than the output voltage from DA3 and
ENVIN signal is still kept at the
‘
H
’
level. Also the alarm circuit detects the rising edge of the ENVIN signal
and fixes the constant timing to output the alarm signal.
In the case that VPDIN signal recovers and becomes higher than the alarm threshold level at the detecting
point with ENVIN =
‘
H
’
or that the ENVIN signal becomes the
‘
L
’
level, the alarm circuit outputs the
‘
L
’
level
(the normal signal) from ALM-pin.
* In the case of outputting the alarm signal continuously
outputting the alarm signal
ENVIN
ALM
The fixed timing of
* In the case of stopping the alarm signal (the VPDIN signal recovers)
ENVIN
ALM
The VPDIN signal recovers
The fixed timing of outputting the alarm signal
相關(guān)PDF資料
PDF描述
AK2572 APC for Burst Mode Applicable Direct Modulation Laser Diode
AK2573A 125M / 156M Laser Diode Driver + APC
AK2573AVB 125M / 156M Laser Diode Driver + APC
AK2574 156M Laser Diode Driver + APC for Burst Mode
AK2574VB 156M Laser Diode Driver + APC for Burst Mode
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK2571 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Single-Chip Automatic Power/Temperature Control for WDM Laser Diodes
AK2572 制造商:AKM 制造商全稱(chēng):AKM 功能描述:APC for Burst Mode Applicable Direct Modulation Laser Diode
AK2573A 制造商:AKM 制造商全稱(chēng):AKM 功能描述:125M / 156M Laser Diode Driver + APC
AK2573AVB 制造商:AKM 制造商全稱(chēng):AKM 功能描述:125M / 156M Laser Diode Driver + APC
AK2574 制造商:AKM 制造商全稱(chēng):AKM 功能描述:156M Laser Diode Driver + APC for Burst Mode
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