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| 型號： | AK2572 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | APC for Burst Mode Applicable Direct Modulation Laser Diode |
| 中文描述： | apc的突發(fā)模式適用的直接調(diào)制激光器 |
| 文件頁數(shù)： | 34/50頁 |
| 文件大?。?/td> | 463K |
| 代理商： | AK2572 |
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ASAHI KASEI
[AK2572]
-34-
< MS0290-E-01>
2004/8
9. Digital Interface Configuration
9.1 Memory Configuration
EEPROM and Register configuration is shown in Figure 9-1. Access to EEPROM and Register is executed via
2-wire Digital Interface (I/F).
Figure 9-1 Memory Configuration
Device
Address-2
000
Temperature Compensation Data for Imod
[E_MOD_TC(1K): I-DAC1 or V-DAC3]
Temperature Compensation Data for Ibias
[E_BIAS_TC(1K): I-DAC2]
Temp. Compensation Data for EXTRA DAC
[E_EXTRA_TC(256): V-DAC3 or I-DAC1]
No Memory
(2K)
No Memory
(1K)
User Area or
Temperature Compensation Data for Imod [2]
(1K)
Set-up Data
(256)
1111 1111
Register
Write Protect Control
(2Address)
Contents
Power Leveling [2] is available when
RE_PWR_LVL2_SET="1"
(RE_PWR_LVL1_SET="0"
）
I-BIAS0
I-BIAS1
I-BIAS2
I-BIAS3
Selected by RE_PWR_SEL[1:0]
Power Leveling [1] (Select the data for
Imod by MOD_CTRL-pin) is available
when RE_SFP_SET="1" and
RE_PWR_LVL1_SET="1"
R_PASSWD[7:0]
(Password)
R_WP_CTRL[0] (Protect Control)
Write Protect is enable when WP-pin="L" or
R_WP_CTRL[0]="1" (WP-pin setting has a
higher priority than R_WP_CTRL)
* Full access is possible when when Write
Protect is released (When R_PASSWD[7:0]
via Digital I/F agree with E_PASSWD[7:0],
access to R_WP_CTRL[0] becomes possible)
* Only A0h(1K) area is possible to Read
when Write Protect is enable
Write Protect Control (WP)
A0h/7Eh
A0h/7Fh
Device
Address-1
1010
1010
001
010
Address
0000 0000
~
0111 1101
1000 0000
~
1111 1111
0000 0000
~
1111 1111
1010
0000 0000
~
0000 0000
~
0111 1111
1000 0000
0010 0000
~
0011 1111
0110 0000
~
0111 1111
1000 0000
~
1111 1111
011
1010
No memory
(1K)
1010
100
0000 0000
~
1111 1110
1010
100
Operation Mode Change Command
(A0h)
(A2h)
(A4h)
(A6h)
(A8h)
(=Not DAC for Imod)
I-MOD0
I-MOD1
I-MOD2
I-MOD3
Switch I-DAC1
and V-DAC3 by
RE_MODV_SEL
setting
0001 1111
1111 1111
~
E_PASSWD[7:0]
(Password )
E_WP_CTRL[0] (Protect Control)
A6h/7Eh
A6h/7Fh
Register
EEPROM
Write Protect is released when WP-pin="H"
and R_WP_CTRL[0]="0"
0111 1110
0111 1111
[1] USER AREA for SFP_MSA support when
RE_SFP_SET="0"
[2] E_MOD_TC2 for Power Leveling [1] when
RE_SFP_SET="1" and
RE_PWR_LVL1_SET="1"
Temperature Data for APC_FB target
[E_APC_TRGT_TC(256)]
0100 0000
~
0101 1111
Temperature Data for CURRALM Threshold
[E_CURRALM_BIAS/MOD_TC(256)]
[*] Device address is configured with Device address-1 (“1010 “
＝
“Ah”) and Device address-2.
Device address-2 in 3 bits Binary expression is converted into Hexadecimal code by multiplying it by 2.
For example, when Device address-1
＝
“1010” and Device address-2
＝
“011”, Device address becomes
“A6h”.
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| AK2573A | 制造商:AKM 制造商全稱:AKM 功能描述:125M / 156M Laser Diode Driver + APC |
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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 |
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