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參數(shù)資料
| 型號(hào)： | AK2573A |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 125M / 156M Laser Diode Driver + APC |
| 中文描述： | 1.25億/ 1.56 apc的激光二極管驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 22/38頁(yè) |
| 文件大小： | 286K |
| 代理商： | AK2573A |
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ASAHI KASEI [AK2573A]
<MS0189-E-01>
-22-
2004/5
5. Alarm
AK2573A has 5 alarm functions as shown in Table 5-1.
Table 5-1 Alarm function
ALM
OPTALM
CURRALM
Detection condition
When monitor PD current is below the OPTALM level.
When R_DAC1 or R_DAC2 is beyond CURRALM level or
equal to full code.
When the detected temperature is beyond TEMPALM
level.
When the detected 0s or 1s sequential data input (4.5us
typical).
When one or more alarm detected.
Poarity
Programmable 5us (typ) (Note 1)
Programmableevery 125us (typ)
Detected Time
TEMPALM
Programmable every 128ms (typ)
DATAALM
Programmable 4.5us (typ)
TXFAULT
“H”
depends on
detected ALM
Note 1: Not include delay time by RPD and CPD.
5.1 OPTALM
OPTALM level (optalm_ref) is selectable among 1/3, 1/4, 1/6 and 1/7 of APC FB reference votage (vapc_ref) by
RE_OPTALM.
OPTALM is detected when vpd < optalm_ref.
APC FB keeps R_APC_FB during OPTALM detection in the “Self running mode”.
5.2 CURRALM
CURRALM is detected when
R_DAC1(MSB 4bit) > R_CURRALM_DAC1 or R_DAC2(MSB 4bit) > R_CURRALM_DAC2
R_CURRALM_DAC1 and 2 can be set every 6
℃
.
CURRALM is clear when receiving disable request (TX_DIS1 or TX_DIS2 is set “H”).
5.3 TEMPALM
TEMPALM is detected when R_TEMP < R_TEMPALM.
R_TEMP has negative slope compared to the temperature, TEMPALM is detected when the detected temperature
beyond R_TEMPALM.
5.4 DATAALM
DATAALM is detected when input DATA is 0s or 1’s fixed more than 4.5us (typ).
APC FB keeps R_APC_FB during DATAALM detection in the “Self running mode”.
DATAALM detection is ignored when RE_DATAALM_MASK= “1”.
5.5 TXFAULT
TXFAULT function is shown in Table 5-2.
Table 5-2 TXFAULT
RE_SFP
Shutdown request
(TXDIS 1, 2)
0
0
0
1
1
1
ORed ALM
TXFAULT
I-DAC output
0
0
1
0
0
1
0
1
X
0
1
X
0
1
Normal Operation
Normal Operation
Shutdown
Normal Operation
Shutdown
Shutdown
ORed ALM
0
1 (Hold)
0 or 1 (Hod)
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相關(guān)代理商/技術(shù)參數(shù) |
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| AK2573AVB | 制造商:AKM 制造商全稱:AKM 功能描述:125M / 156M Laser Diode Driver + APC |
| AK2574 | 制造商:AKM 制造商全稱:AKM 功能描述:156M Laser Diode Driver + APC for Burst Mode |
| AK2574VB | 制造商:AKM 制造商全稱:AKM 功能描述:156M Laser Diode Driver + APC for Burst Mode |
| AK2581HB-AT | 制造商:ADDA Corporation 功能描述:AC-FAN, 254X89 MM, 115/60 VOLT 制造商:ADDA Corporation 功能描述:AXIAL FAN 254MM 115VAC 620mA 制造商:ADDA Corporation 功能描述:AXIAL FAN, 254MM, 115VAC, 620mA 制造商:ADDA Corporation 功能描述:AK Series 2100/2000 RPM 254 x 89 mm 115 V 680/630 CFM Ball Bearing AC Fan 制造商:ADDA Corporation 功能描述:AXIAL FAN, 254MM, 115VAC, 620mA; Frame Dimensions:254mm x 89mm; Supply Voltage:115VAC; Current Rating:620mA; Flow Rate - Imperial:630cu.ft/min; Flow Rate - Metric:19.244m /min; Noise Rating:62dBA; Bearing Type:Ball; Series:AK25489 ;RoHS Compliant: Yes 制造商:ADDA 功能描述:AK Series 2100/2000 RPM 254 x 89 mm 115 V 680/630 CFM Ball Bearing AC Fan |
| AK2581HB-AT-LF | 功能描述:風(fēng)扇 254x89mm 110/120VAC Hi Spd Ball Term RoHS:否 制造商:Sanyo Denki 產(chǎn)品:Fans 電流類型: 電源電壓:48 V 氣流:636 CFM 軸承類型: 噪聲:83 dBA 速度:6400 RPM 功率額定值:264 W 框架尺寸 (mm):172 mm x 150 mm x 102 mm 外殼材料:Aluminum 端接類型:Wire 系列: |
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