參數(shù)資料
型號(hào)： AK2574VB
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(qū)動(dòng)器apc的突發(fā)模式
文件頁(yè)數(shù)： 26/30頁(yè)
文件大?。?/td> 248K
代理商： AK2574VB
ASAHI KASEI
[AK2574]
<MS0266-E-00>
-26-
2003/12
5.4 Register
Register memory map is shown in Table 5-6 and 5-7. Register access is limited with WP pin and Operation mode
(refer toFig 6-1, for more information).
Table 5-6 Register (Device Address = A8h)
Register
Address Function
Bit R/W
(Note 1)
R/W
R/W
Remark
R_VREFTRIM[7:4]
R_TEMP_OFFSET
[3:0]
R_TXDIS_POL[2]
00h
00h
Oscillator Frequency
Temperature sensor offset 4
4
01h
TXDIS Poarity
1
R/W
0: Shutdown at “H”
1: Shutdown at “L”
0: “H” at TXACT detection
1: “L” at TXACT detection
0: “H” at CLKALM detection
1: “L” at CLKALM detection
see Table 3-2
0: TXACT Hod
(Normal Operation)
1: TXACT (Real-Time)
see Table 2-5
see Table 2-6
see Table 2-4
see Table 6-3
see Table 2-8
Reserved
R_TXACT_POL[1]
01h
TXACT Poarity
1
R/W
R_CLKALM_POL[0] 01h
CLKALM Poarity
1
R/W
R_DAC_TXACT[2:0]
R_TXACT_THRU[0]
02h
04h
DAC(TXACT)
TXACT Hod
3
1
R/W
R/W
R_DAC1[7:0]
R_DAC2[7:0]
R_DUTY[4:0]
R_MODE[3:0]
R_TEMP[6:0]
AKM Test
05h
06h
07h
08h
0Ch
0Dh -
I-DAC1 Current Setting
I-DAC2 Current Setting
Duty Adjustment
Operation Mode Status
Detected Temperature
Test for AKM
(Reserved)
8
8
5
4
7
R/W
R/W
R/W
R
R
NA
13h
Note 1:
R: Read Only.
R/W: Read/Write, Write data is hold unless re-writing or operation mode changing. All adjustment would be
done by R/W registers.
Table 5-7 Register Map
Address
00h
01h
D7
D6
D5
D4
D3
D2
TEMP_OFFSET
TXDIS_
POL
D1
D0
VREFTRIM
TXACT_
POL
DAC_TXACT
CLKALM_
POL
02h
03h
04h
TXACT_
THRU
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh –
13h
DAC1
DAC2
DUTY
MODE
TEMP
Reserved
(AKM Test)
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