參數(shù)資料
型號(hào)： 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(yè)數(shù)： 38/50頁(yè)
文件大?。?/td> 463K
代理商： AK2572
ASAHI KASEI
[AK2572]
-38-
< MS0290-E-01>
2004/8
9.4
EEPROM Configuration
EEPROM configuration is listed in Table 9-3. EEPROM configuration of adjustment data area is listed in Table
9-4 and Table 9-5. The access to EEPROM depends on its operation modes (Refer to Table 10-1). And the access
to EEPROM is also limited by Write Protect setting (Refer to Section 9.2).
< Important Notice > The adjusted data in AKM factory are stored in advance at address location (Device
Address
＝
A6h, Address
＝
60h) for the offset voltage of the On-chip temperature sensor. If such excessive
temperature stress is to be applied to the AK2572 which exceeds a guaranteed EEPROM data retention
conditions (for 10 years at 85
℃
), it is important to read the pre-determined data in advance and to re-write the
same data back into EEPROM after an exposure to the excessive temperature environment. Even if the
exposure time is shorter than the retention time, any accelerated temperature stress tests (such as baking) are
performed, it is recommended to read the pre-set data first and to re-write it after the test. Access to unused
address locations is not functionally guaranteed.
Table 9-3 EEPROM Address Configuration
Device
Address
A0h
00h (0) ~ 7Dh (125)
A0h
80h (128) ~ FFh (255)
A2h
00h (0) ~ FFh (255)
Address
Data (D7 ~ D0)
Initial
value
00h
－
－
Note
User Area (1k bits)
No Memory
No Memory
E_MOD_TC (1k bits)
Temperature Compensation Data for Imod
E_BIAS_TC (1k bits)
Temperature Compensation Data for Ibias
E_EXTRA_TC (256 bit)
Temperature Compensation Data for EXTRA DAC
E_APC_TRGT_TC (256 bit)
Temperature Compensation Data for APC target
E_CURRALM_BIAS / MOD_TC (256 bit)
Temperature Compensation Data for CURRALM threshold
Adjustment Data (88 bit)
Reserved (152 bit
）
Write Protect Control (16 bit)
[*1]
A4h
00 h (0) ~ 7Fh (127)
00h
[*2]~[*4]
A4h
80h (128) ~ FFh (255)
00h
[*2], [*3]
A6h
00h (0) ~ 1Fh (31)
00h
[*5]
A6h
20h (32) ~ 3Fh (63)
00h
[*5]
A6h
40h (64) ~ 5Fh (95)
FFh
[*5]
A6h
A6h
A6h
［
*1
］
With both RE_SFP_SET
＝
”1” and RE_PWR_LVL1
＝
”1”, this area becomes setting area for Imod
temperature compensation data [2] (E_MOD_TC2) of Power Leveling [1] function.
［
*2
］
R_TEMP (Upper 7 bits A-to-D code of the temperature sensor) and address are corresponded (1.5
℃
/step)
and then the temperature compensation data is written.
［
*3
］
With RE_PWR_LVL1
＝
“0” and RE_PWR_LVL2
＝
“1”, these area become setting area for Ibias and Imod
temperature compensation data of Power Leveling [2] function.
［
*4
］
With both RE_SFP_SET
＝
”1” and RE_PWR_LVL1
＝
”1”, this area becomes setting area for Imod
temperature compensation data [1] (E_MOD_TC1) of Power Leveling [1] function.
［
*5
］
Upper 5 bits of R_TEMP and address are corresponded (6.0
℃
/step), and then the temperature
compensation data is written.
60h (96) ~ 6Ah (106)
6Bh (107) ~ 7Dh (125)
7Eh (126), 7Fh (127)
－
－
00h
相關(guān)PDF資料
PDF描述
AK2573A 125M / 156M Laser Diode Driver + APC
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相關(guān)代理商/技術(shù)參數(shù)
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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
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
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