AK2573A Datasheet, PDF (32/38 Pages) Asahi Kasei Microsystems – 125M / 156M Laser Diode Driver + APC

ASAHI KASEI
[AK2573A]
Table 8-4 Adjustment Data Area (Device Address-2 = 011)
EEPROM
Address
Function
Bit
E_VRFTRIM[7:4]
60h Oscillator Frequency
4
E_TEMP_OFFSET[3:0] 60h Temperature sensor offset 4
E_APC_FF_SET[7:6] 61h APC FF Setting
2
E_APC_FB_SET[5:4] 61h APC FB Setting
2
E_APC_INIT_SET[3] 61h APC FB Initial Setting
1
E_SFP[2]
61h SFP Setting
1
E_DAC1_GAIN[1]
61h I-DAC1 Gain
1
E_DAC2_GAIN[0]
61h I-DAC2 Gain
1
E_TEMP_DET[5]
62h
E_TIMER_OPTALM[4] 62h
E_ALM_POL[3]
62h
Temperature compensation 1
at shutdown release ON/OFF
Delay time of TXFAULT 1
detection with OPTALM
ALM Polarity
1
E_OPTALM[1:0]
62h OPTALM Reference Level 2
E_TEMP_WIN[6:0]
63h
E_DAC_FBRT_FIX[6:0] 65h
E_DATAALM_MASK[0] 67h
Temperature Difference
7
Detection Level
APC FB Dual Feedback 7
Ratio
DATAALM mask
1
E_PDGAIN[5:0]
68h PDGAIN
6
E_TEMPALM[6:0]
6Ch TEMPALM Level
7
Initial Value
Factory Setting
Factory Setting
00
00
0
0
0
0
1
0
0
00
00h
Remark
see Table 4-4
see Table 4-4
0: No Initial Setting
1: Initial Setting
0: No SFP Support
1: SFP Support
0: Gain = 1/2
1: Gain = 1
0: Gain = 1/2
1: Gain = 1
0: OFF
1: ON
0: 160ms
1: 2ms
0: “H”
1: “L”
00: 1/3, 01: 1/4
10: 1/6, 11: 1/7
see section 6.2
00h
see section 4.3
0
0: DATAALM Valid
1: DATAALM Invalid
00h
see Table 4-2
00h
see Table 4-9
Table 8-5 EEPROM Map (Adjustment Data Area)
Address D7
D6
D5
D4
D3
D2
D1
D0
60h
VREFTRIM
TEMP_OFFSET
61h
APC_FF_SET
APC_FB_SET
APC_
SFP DAC1_ DAC2_
INIT_SET
GAIN
GAIN
62h
TEMP_ TIMER_ ALM_
OPTALM
DET OPTALM POL
63h
TEMP_WIN
64h
65h
DAC_FBRT_FIX
66h
67h
DATAALM_
MASK
68h
PDGAIN
69h
6Ah
6Bh
6Ch
TEMPALM
6Dh –
7Fh
Reserved (for AKM Test)
<MS0189-E-01>
-32-
2004/5