AK2571 Datasheet, PDF (8/52 Pages) Asahi Kasei Microsystems – Single-Chip Automatic Power/Temperature Control for WDM Laser Diodes

AKM Confidential
AK2571
Table 3-2 R_PDMON_SET setting
R_PDMON_SET (E_PDMON_SET)[2:0]
PDMON Full Scale
111
1.1V
-
0.1V / step
000
0.4V
Table 3-3 R_PDGAIN setting
R_PDGAIN_SET (E_PDGAIN_SET)[4:0]
Gain
11111
-
21.7dB
0.7dB / step
00000
0dB
Make sure the PDMON voltage equals the value of R(E)_PDMON_SET.
Conversion expression: Gain = 20*log (1.8 / PDIN voltage)
3.3.2 DACAPC
Generates the reference voltage for aging compensation. Table 3-4 indicates the function of R(E)_APC_TRGT and vapc_ref
R_APC_TRGT (E_APC_TRGT)[6:0]
Reference voltage for Aging compensation (vapc_ref)
1111111
2.1V
|
4.8mV / step
0000000
1.5V
Refer to “5.3.1 Process - ATC and APC Adjustment Example” for further instructions regarding the adjustment process, .
<Rev. 0.6E Preliminary>
-8-
2001/11