AN8725FH Datasheet, PDF (12/36 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)
Parameter
Symbol
Conditions
Min Typ Max Unit
DAC9 block (continued)
Offset current
I_9OF1 "00h" LPF-on, DAC7 [Fh],
DAC8 [0h], DAC1 [00h],
−2.0  2.0 mA
DAC7, DAC8 characteristics included
I_9OF2 "00h" LPF-off, DAC7 [Fh],
DAC8 [0h], DAC9 [00h],
− 0.85  0.85
DAC7, DAC8 characteristics included
LPF on/off gain ratio
GR_DA9 G_LPFON /G_LPFOFF ,
input amplitude 0 V to 2 V
0.95 1 1.05 times
Settling time
t_SDA9
XWR ↑ to DAC9 [00h to 1Fh]
±2 LSB range,
DAC7[Fh], DAC8 [0h],
LPF9-off,
LPF91 pin open,
RDCP1 pin open
 400 800 ns
Supply voltage monitoring block
Abnormality release supply
V_PSDL Sweep V_CC from low to high
voltage
V_PSOL Sweep V_CC from high to low
Abnormality supply voltage
V_PSDH Sweep V_CC from high to low
V_PSOH Sweep V_CC from low to high
Abnormally emitted light detection DAC5
3.9 4.2 4.5 V
5.5 5.8 6.1
3.6 3.9 4.2 V
5.8 6.1 6.4
Resolution
RES5
 4  bit
Integral linearity error
EL5
− 0.5  0.5 LSB
Differential linearity error
ED5
− 0.5  0.5 LSB
Offset voltage
V_5OF1 DAC5 = set to "Fh" and difference to −20  20 mV
ERREF pin
V_5OF2 DAC5 = set to "0h" and difference to
VNR pin, at ERREF − VNR = 2.0 V
105 125 145
Settling time
t_SDA5 XWR ↑ to DAC5 [0h to Fh],
±0.5 LSB
 0.5 1.5 µs
Abnormally emitted light detection DAC6
Resolution
RES6
 4  bit
Integral linearity error
EL6
− 0.5  0.5 LSB
Differential linearity error
ED6
− 0.5  0.5 LSB
Offset voltage
V_6OF1 DAC6 = set to "Fh" and difference to −20  20 mV
ERREF pin
V_6OF2 DAC6 = set to "0h" and difference to
VNR pin, at ERREF − VNR = 2.0 V
105 125 145
Settling time
t_SDA6 XWR ↑ to DAC6 [0h to Fh]
±0.5 LSB
 0.5 1.5 µs
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