AK2571 Просмотр технического описания (PDF) - Asahi Kasei Microdevices

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AK2571

Single-Chip Automatic Power/Temperature Control for WDM Laser Diodes

Asahi Kasei Microdevices 

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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

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