AN8725FH Datasheet, PDF (18/36 Pages) Panasonic Semiconductor – Semiconductor laser power control IC

AN8725FH
ICs for Optical Disk Drive
s Electrical Characteristics at V_CC = 5.0 V, T_a = 25°C (continued)
• Design reference data (continued)
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter
Symbol
Conditions
Min Typ Max Unit
Comparator in abnormally emitted light detection block (continued)
Input offset voltage variation to dV_PDCOF Insufficiently emitted light detection   20 µV
temperature
dT
°C
dV_POCOF Excessively emitted light detection
dT
  20
Abnormally emitted light
detection response
Abnormally emitted light
release response
DAC5 block
t_PWDNF Insufficiently emitted light detection  150 300 ns
t_PWOVF Excessively emitted light detection
 150 300
t_PWDR Insufficiently emitted light detection  150 300 ns
t_PWOVF Excessively emitted light detection
 150 300
Offset voltage variation to
temperature
dV_DA5OF Set to "Fh"
dT
 −10 80 µV
°C
DAC6 block
Offset voltage variation to
temperature
dV_DA5OF Set to "Fh"
dT
 −10 80 µV
°C
Optical monitor for abnormally emitted light detection
Offset voltage variation to
temperature
dV_EROFR In playback,
dT I_PD = 0 µA
 −20 210 µV
°C
dV_EROFW In recording,
dT I_PD = 0 µA
 −20 200
Gain variation to temperature dG_ERR1 In playback, I_PD = 100 µA to 200 µA, −3 0.5 3
%
T_a = −20°C to +75°C
dG_ERR2 In playback, I_PD = 100 µA to 200 µA, −3 0.5 3
T_a = −20°C to +75°C
dG_ERW In recording, I_PD = 100 µA to 2 000 µA, −3 0.5 3
T_a = −20°C to +75°C
Gain ratio variation to
temperature
d ^{GERR Ta = −20°C to +75°C}
G_ERW
−3 0.5 3
%
Settling time
t_ERR In playback, error: ±0.5%,
current variation 100 µA to 200 µA
 250 400 ns
t_ERW In playback, error: ±0.5%,
 100 200
current variation 100 µA to 2 000 µA
Signal changeover response
(× 10 mode)
t_ERSW1A Playback → recording ±0.5%
addr "9": D4 = "0" × 10
 170 400 ns
t_ERSW2A Recording → playback ±0.5%
addr "9": D4 = "0" × 10
 550 1 000
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