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參數(shù)資料
| 型號： | 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)動器 |
| 文件頁數(shù)： | 35/38頁 |
| 文件大小： | 286K |
| 代理商： | AK2573A |
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ASAHI KASEI [AK2573A]
<MS0189-E-01>
-35-
2004/5
Fig 8-1 The data format of signed 9 bit register
D0
Register (9bit 2's complement)
D1
D2
D3
D4
D5
D6
D7
D8
Body (8bit)
Sign
Read Data via Digital I/F (8 bit)
(Sign + Body (MSB 7bit)
Write Data via Digital I/F (8 bit)
(Body 8bit, Negative Data can not be written)
9. Operation Mode
The AK2573A has 3 operating modes: Self-running, Adjustment and EEPROM mode.
9.1 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
AK2573A works in this mode after power-on.
9.2 Adjustment Mode
Adjustment mode is designed for training the LD characteristics. The AK2573A operates according tothe register
settings set through the I
2
C
TM
I/F. During adjustment mode, R_SFP should be 0.
9.3 EEPROM Mode
EEPROM mode is used for storing LD characteristics into EEPROM.
9.4 MODE Control
The AK2573A operation modes are changed through the I
2
C
TM
interface. Table 9-1 shows the access limitation of
each operation mode and Table 9-2 shows the command tochange operation mode.
Note: The I
2
C
TM
interface access is prohibited for 1ms after power-on or mode transfer to self-running mode.
Table 9-1 Access limitation of each operation mode
Operation mode
Self-running mode
(WP=”L”)
Adjustment mode
(WP=”L”)
EEPROM mode
(WP=”L”)
WP = “H”
Self-running mode only
EEPROM Access
Read
○
Register Access
Write
×
Read
○
Write
×
(except mode-change command)
○
○
×
○
○
○
○
×
(except mode-change command)
×
○
(User Area Only)
×
×
Table 9-2 Operation mode change
Device Address
1010100
1010100
1010100
9.5 Operation Mode Protection
When set WP = “H”, only self-running mode is selected.
R/W
W
W
W
Address
11111111
11111111
11111111
Data
10100000
10100111
10101110
Operation mode
Self-running mode
Adjustment mode
EEPROM mode
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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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