參數(shù)資料
型號(hào)： AK2573AVB
廠(chǎng)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)： 24/38頁(yè)
文件大?。?/td> 286K
代理商： AK2573AVB
ASAHI KASEI [AK2573A]
<MS0189-E-01>
-24-
2004/5
Table 6-3 Operation at shutdown release
RE_SFP
TXFAULT at
Shutdown request
0
0
0
1
1
1
1
7. Power-up /down Timing
7.1 Delay Time of TXFAULT Detection with OPTALM
In correspond tothe delay time caused by RPD and CPD toget the moniter PD average current, the delay time of
TXFAULT detection with OPTALM is set when RE_SFP=”1” (SFP support). AK2573A has 2 delay time when
RE_SFP=”1”: normal delay and accelerated delay. Accelerated delay may be selected when both I-DAC1 and I-DAC2
are set to APC_FF or APC_FB with an initial value setting.
Table 7-1 shows the delay time of TXFAULT detection with OPTALM and Fig 7-1 illustrated block diagram.
Note: When accelerated delay is selected with RE_SFP=”1”, APC_FF data or initial data of APC_FB should be
suitable, otherwise AK2573A might gointo shutdown by detection of OPTALM after delay time.
Fig 7-1 APC_FB Block Diagram
RE_TEMP_
DET
0
1
1
0
1
1
X
Temp Difference
result
X
0
1
X
0
1
X
R_APC_FB
Remark
X
X
X
0
0
0
1
Initial value
Hod data
Initial value
Initial value
Hod data
Initial value
Initial value
TX_FAULT
Control
APC Feedback
(R_APC_FB)
PDGAIN
Monitor
PD
Digital
Filter
APC Terget
(R_APC_TRGT
)
OPTALM
OPTALM
reference
(opalm_ref)
PDIN
RPD
CPD
DAC_APC
ATT
vpd
vapc_ref
APC_
COMP
OPTALM Level
(R_OPTALM)
PDGAIN
(R_PDGAIN)
LD
Detection and reset OPTALM
vary with the cut-off
frequency of CPD and RPD
Table 7-1 Delay time of TXFAULT detection with OPTALM
RE_SFP
R_TIMER_
OPTALM
0
X
R_APC_
INIT_SET
X
R_APC_
FF_SET
X
Delay Time of TXFAULT
detection with OPTALM
0 ms
Remarks
disable TXFAULT
detection
1
1
0
1
X
0
X
00
01
10
11
X
160 ms (typ)
160 ms (typ)
1
1
1
1
X
1
2 ms (typ)
2 ms (typ)
Acceleration
power-up
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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(lèi)型: 電源電壓:48 V 氣流:636 CFM 軸承類(lèi)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(lèi)型:Wire 系列:
AK2581HB-AW 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 x 89MM, 115VAC, 620MA; Frame Dimensions:254mm x 89mm; Supply Voltage:115VAC; Current Rating:620mA; Flow Rate - Imperial:630cu.ft/min; Noise Rating:62dBA; Bearing Type:Ball; Power Connection Type:Wire Leaded ;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
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