LT0H33P Datasheet, PDF (3/3 Pages) Sharp Electrionic Components – Hologram Laser(3 beam) for MD players

LT0H33P
s Electro-optical Characteristics *1
Parameter
Focus error signal offsetting *2
Focus error noise *3
Radial error balance *4
RF Output amplitude *5
FES Output amplitude *6
RES Output amplitude *6
Condition
D2 + D3 + D4
D2 - D3
D1 - D5
D1,D2,D3,D4,D5: Refer to pattern segment No. (Fig.1)
(Tc=25˚C)
MIN
TYP
MAX
Units
-0.4
-
+0.4
µm
-
19
-
µm
-20
-
+20
%
6.0
10.6
-
µA p-p
3.3
5.5
8.1
µA p-p
0.6
1.3
2.2
µA p-p
*1 Measuring method is shown below.
Laser
Driver
APC
Actuator
C.L.
HL
NA=0.17
f=10.74mm
NA=0.45
f=3.4mm
Measuring method of electro-optical characteristics
Disk
TCD-782
(A-BEX)
*2 Distance between FES=0 and jitter Min. point
*3 ^a
b
*4 (a - b) / 2
a+b
a
a
b
GND
b
*5 Focus/radial servo is ON-state
*6 FES output amplitude: focus rocking condition
RES output amplitude: under the condition that only focus servo is effected