AK2571 Datasheet, PDF (34/52 Pages) Asahi Kasei Microsystems – Single-Chip Automatic Power/Temperature Control for WDM Laser Diodes

AKM Confidential
AK2571
Addrｅss
[7:6] [5:4] [3:0] 15
00 11 1010
1011
1100
1101
1110
1111
01 11 1010
1011
1100
1101
1110
1111
Ｄａｔａ
14 13 12 11 10 9
87
E_DAC_SET[2:0]
E_OPALM_SET
E_APC_CNT_CTRL_USR[7:0]
E_LK_CNT_SET
E_PID_P[7:0]
E_PID_MAX[5:0]
E_PID_INACT_SET[7:0]
6543210
Ctrl PWM[1:0] Ana
CNT_SET APC_FB_SET FF
E_TV_OFFSET[4:0]
E_STATUS_SET E_MON_SET[3:0]
POL ALM_SH
TIMER_SET
E_INI_CTRL_USR[7:0]
E_FIX_CTRL_USR[7:0]
E_LK_TMPRT_WIN[7:0]
E_PID_D[7:0]
E_PID_I[7:0]
E_PIDALM_SET[7:0]
8 Register
Table 8-1 and 8-2 show register contents and formats.
The EEP column indicates:
1: existence of same function in EEPROM
2: existence of related function inEEPROM.
Table 8-1 Construction of Registers
Register Name
Bits
Function
R_PDGAIN[4:0]
5
PDGAIN Set
R_PDMON_SET[7:5] 3
PDMON output voltage set
R_ATC_OFFSET[13:8] 6
ATC OFFSET set
R_MON_DAC_FIX[7:0] 8
R_DAC1_GAIN[1:0] 2
MON_DAC fixed value set
I-DAC1 Gain set
R_DAC2_GAIN[3:2] 2
R_DAC3_GAIN[5:4] 2
R_EA_SW[8]
1
R_EA_GAIN[10:9]
2
I-DAC2 Gain set
I-DAC3 Gain set
EA ON/OFF set
EA Gain set
EEP Address
Setting
A5-A0
1 000000 00000: 0dB
11111: 21.7dB
0.7dB Step, refer table3-3
1 000000 000: 0.4V
111: 1.1V
0.1V Step, refer table 3-2
1 000000 Refer table 4-6, 4-7
000000: 0.3V
101000: 1.7V
29.7mV / Step
1 000001 Refer table 6-1
1 000010 Refer table 3-5
00: 1, 01: 1/2, 10: 1/4,
11: 1/12
1 000010 Refer table 3-6
00: 1, 01: 1/2, 10: 1/4
1 000010 Refer table 3-7
00: 1, 01: 1/2, 10: 1/4
1 000010 0: OFF, 1: ON
1 000010 Refer table 3-9
<Rev. 0.6E Preliminary>
-34-
2001/11