SLK3001PE Datasheet, PDF (2/2 Pages) List of Unclassifed Manufacturers – Ultrahigh-speed Optical Integration Device that Achieves 10xSpeed DVD Playback Laser Coupler

16-pin ceramic
package
Built-in 1/4-wavelength
plate
Pulsation LD
Disc
Microprism
Device size:
7.5 mm × 6.5 mm × 2.0mmt
PDIC
Focus error: Differential spot size method
Tracking error: DPD method
(phase difference detection)
s Figure 1 Device Structure
Track direction
F4
F8 R4
F3
F7 R3
F2
F6 R2
F1
F5 R1
Phase
comparator
A
A = F1 + F2
B = F5 + F6
C = F7 + F8
D = F3 + F4
Outputs
for DPD
use
D
C
Adder
B
Phase
comparator
Tracking error
(DPD method)
A2 = F1 + F5 + R3
B2 = F3 + F7 + R1
C2 = F4 + F8 + R2
D2 = F2 + F6 + R4
Outputs for
focus servo use
Focus
error
FE = (A2 + C2) – (B2 + D2)
(Differential spot size method)
s Figure 2 Servo Signal Calculation
Disc
NA = 0.6
NA = 0.086
(7× system)
Objective
lens
Collimating
lens
GND 9
Im 10
G.SW 11
D 12
C 13
RF– 14
D2 15
C2 16
Top view
8 LDA
16
1
7 VCC
15
2
6 VC
14
3
5A
13
Bottom view
4
4B
12
(GND)
5
3 RF+
11
6
2 A2
10
7
1 B2
9
8
s Figure 4 Pin Configuration
SLK3001PE
s Figure 3 Sample Optical Pickup
Structure
s Table 1 Main Specifications
Item
LD operating
current
LD operating
voltage
LD wavelength
Optical output
Relative intensity
noise
Monitor PD
current
PDIC supply
voltage
PDIC current
consumption
Frequency band
Operating
temperature
Symbol
Iopo
Typical value
75.0
Vop
2.30
λ
655
Po
1.2
RIN
Under-125
Imon
VCC
VC
ICC
F
Tc
0.1
5.0
2.5
20
100
–10 to +70
Unit
mA
V
nm
mW
dB/Hz
mA
V
V
mA
MHz
°C