參數(shù)資料
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)： 40/50頁
文件大?。?/td> 463K
代理商： AK2572
ASAHI KASEI
[AK2572]
-40-
< MS0290-E-01>
2004/8
Table 9-5 EEPROM : Adjustment Data Setting Map
(“0” must be written where data bit is marked with “0”)
Address
D7
D6
D5
D4
60h
VREFTRIM
D3
D2
TEMP_OFFSET
D1
D0
61h
PWR_SEL
BURST_ALM
BURST
_SET
PWR_LVL2
_SET
SFP_SET
PWR_LVL1
_SET
62h
APC_FF_SET
APC_FB_SET
APC_INIT
_SET
DAC3
_GAIN
DAC2
_GAIN
DAC1
_GAIN
63h
0
TIMER_
OPTALM
EXTALM2
_POL
EXTALM1
_POL
TEMP
_DET
DAC_SET
64h
OPTALM
PDGAIN
65h
0
0
EXTALM2
_SET
EXTALM1
_SET
CURRALM
_SET
OPTALM
_SET
TIMER_
EXTALM2
TIMER_
EXTALM1
66h
TEMPALM
_SET
0
0
0
0
0
0
0
67h
TEMP_WIN
68h
MODV
_SEL
－
MOD_FBRT
69h
6Ah
BIAS_FBRT
TEMPALM
9.5 Register Configuration
In Table 9-6 and Table 9-7, Register configuration is shown. As to the access limitations via Digital I/F, please
refer to Table 9-1. Details of “ R/W ” column and “ Form “ column in Table 9-6 are described below.
(1) “R/W” column
R :
Read only operation is possible in Adjustment Mode and in Self-Operation Mode when Write Protect
operation is released. Writing the data into these Registers via Digital I/F is impossible.
R/W : Read / Write operation is possible in Adjustment Mode, and Read operation is possible in
Self-Operation Mode when Write Protect operation is released.
Data written via Digital I/F is retained till operation mode is altered or data is modified. The AK2572
allows LD module adjustment at the product shipment by modifying the data in R/W registers.
R/FW: In addition to R/W function above, Read / Write operation is possible in Self-Operation Mode when
Write Protect operation is released.
(2) “Form“ column
U : Unsigned
S : Signed
（
2’s Complement
）
Table 9-6 Register Configuration
Register
R_VREFTRIM [7:4]
R_TEMP
_OFFSET [3:0]
Address
00h
Function
Bit Form R/W
4
U
Note
On-chip oscillator frequency
R/W
00h
Temperature sensor offset
4
U
R/W
R_PWR_SEL [7:6]
01h
EEPROM data switching at
Power Leveling [2]
2
U
R/W
Refer to Table 5-2 [*1]
R _BURST_ALM [5:4]
01h
EXTALM mask setting at
Burst mode
2
U
R/W
0:Non-masked, 1:Masked
[5]: EXTALM2,
[4]: EXTALM1
0:OFF, 1:ON
R _BURST_SET [3]
R_PWR_LVL2
01h
Burst mode setting
1
U
R/W
_SET [2]
01h
Power Leveling [2] setting
1
U
R/W
0:OFF, 1:ON
R_SFP_SET [1]
R_PWR_LVL1_SET [0]
01h
01h
SFP_MSA support setting
Power Leveling [1] setting
１
1
U
U
R/W
R/W
0:ON, 1:OFF
Refer to Table 5-1
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