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參數資料
| 型號： | AK2574 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 156M Laser Diode Driver + APC for Burst Mode |
| 中文描述： | 1.56激光二極管驅動器apc的突發(fā)模式 |
| 文件頁數： | 13/30頁 |
| 文件大?。?/td> | 248K |
| 代理商： | AK2574 |
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ASAHI KASEI
[AK2574]
<MS0266-E-00>
-13-
2003/12
Ⅵ
. Circuit Description
1. Parameter Notation
1.1 Parameter Definition
In the AK2574 Circuit Description, in order todistinguish various pre-set parameter sources from EEPROM,
Registers or Device pins, “Identifier - Main name” notation is used as shown in Table 1-1. For ease of operational
description, small letters sometimes expresses internal signals.
Table 1-1 Parameter Definitions
Register
Identifier Main Name
R_
REGISTER name
(All Capital)
E_
EEPROM name
(All Capital))
RE_
REGISTER /
EEPROM name
(All Capital)
P_
PIN name
(All Capital)
None
BLOCK name
(All Capital))
None
signal name
(small letter)
Remark
Indicates register
Example
R_DAC1
EEPROM
Indicates EEPROM
E_DAC1
Ether or both Register
or /and EEPROM
Indicates either register
or EEPROM
RE_DAC1
PIN
P_PDIN
BLOCK
I-DAC1
Internal Node
txact_ref
1.2 Operation Overview
The AK2574 has 3 primary functions; 125M /156M modulation (MOD) current switching and BIAS current
switching part, APC (Automatic Power Control) part, and the Control part to control operation modes of the AK2574
operation.
There are 3 operation modes in the AK2574. Since each adjusting function is controlled through I
2
C
TM
Interface, it
realizes an automatic parameter adjustment.
(1) Self-running Mode
Self-running mode is ready for normal operation after all adjustments are completed. In this mode, temperature
detection, EEPROM access and feeding current are automatically performed using the on-chip oscillator. The
AK2574 works in this mode after power-on.
(2) Adjustment Mode
Adjustment mode is designed for training the LD characteristics. The AK2574 operates according to the register
settings set through the I
2
C
TM
I/F.
(3) EEPROM Mode
EEPROM mode is used for storing LD characteristics into EEPROM via I
2
C
TM
I/F.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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:風扇 254x89mm 110/120VAC Hi Spd Ball Term RoHS:否 制造商:Sanyo Denki 產品: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: |
| 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 |
| AK2581HBAW-LF | 功能描述:風扇 100-115 VAC RoHS:否 制造商:Sanyo Denki 產品: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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