Page 1
TABLEOFCONTENTS
1. GENERAL INFORMATION
2. SPECIFICATION
A. Test conditions
B. Specified values
1. General
2. Opto-electrical
3. Electro-mechanical
4. Absolute maximumratings
3. APPLICATION CONDITIONS
4. RELIABILITY
5. STANDARDS
6. HANDLING INSTRUCTIONS
7. VERSIONS/CODENUMBERS
LISTOFFIGURES
Fig. la:Measuring circuitdiagram (part1)
Fig. 1b:Measuring circuitdiagram (part2)
Fig. 2:Recommended clamper
Fig. 3:Recommended suspension
Fig. 4:Electrical data
Fig. 5:Mechanical drawing
Fig. 6:Lightpath
Fig. 7:Focus S-curve
Fig. 8:Radial curve
Fig. 9:Temperature factor
Fig. 10:Focus characteristics
Fig. 11:Radial characteristics
Fig. 12:Turntable
Fig. 13:CDM 12.1
+wires
Fig. 14:Ornamental plate
Fig. 15:Mechanical datafoil
APPENDICES Page
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Page 25 1.
GENERAL INFORMATION
The CDM 12.1 isamodular CD-mechanism, usinga2-stage, 3
spot system. Itcontains thefollowing modules
- a lightpen withholographic lightpath
- the actuator
- the disc motor :a DC-motor withaturntable prepared
for magnetical clamping,equippedwithaspring cone
- the frame withthesledge drive
- the foil with thelasersupply
It is suitable forawide variety ofapplications :e.g.
standalone players(miniandfull size), CD-RCR applications,
and even home CD-ROM systems.
To cope with thisbroad application range,theCDM 12.1 needs
to be flexible :
- suitable for12and 8cm. discs according tothe RED
BOOK standard
- limited size
- applicable inhorizontal andvertical position
- optional accessories areavailable, e.g.tray loading
mechanism, suspension, clampingdevice,ornamental plate
- wide temperature range
- prepared foravariety ofapprobation/safety standards
APPENDIX 1
APPENDIX 2PPN
13Motor Data
RF310T 11400Motor Data Page
26
Page 27
CDM 12.1 SPECIFICATION CDM
12.1 SPECIFICATION
Page1
Page 2
2.SPECIFICATION
A. Test conditions
IParilEter I~I -. I /lax. G;]
Arrilient te""erature 20
25
30
°C
Relative humidity 45
75
%
A Ir pressure 86
106
kPa
Setting anglehorizontal -5
0
5
0
Setting
anglevertical -5
0
5
0
IParameter I CodenuntJer I Notes I
Cla""lng
device
I 310414710030 I See fig. 2
Testdisc I 7104 09924981 I S8C444
B.Specified values
1. General
IParameter I Hin. IHOII. I /lax.I
Unit I Hotes I
Connect ions
Seefig. 4for pinning
See fig.15for mechanica 1data
Current consu""tion 300
mA
Inplay condition
horizonta I oifl'ens ions
Seefio. 5
Hin. read-out diameter 46.8
47.4
48 nm
Hax. read-out diameter 117
117.5 118
nm
Weight 90
gr
Cla""ing force 1.35
N
2.Opto-electrical
I Htn. I _. I /lax. I UnIt I Hotes
llghtpath See
fig.
Focus errordetection Slnole
Foucault
Radial errordetection 3-beam
method
Numer Ica Iaperture 0.45
Working distance 1.8
I ~ nm
Power
Intens ityout of I 0.5ImW
objective lens
LASER
IParaJll!ter I Hin. I NolI. I /lax. I Unit IHotes I
Wavelenght 760
780 800 nm at
30°C
Supp Iy voltage 4
6
VSee fio. 4:+laser
Supp lycurrent 60
90
mA
See fig. 4:+laser
PHOTODIODES
IParameter IHin. IN---- !/lax. I UnIt I Notes I
Configurat Ion See
fig. 4
CAsum 2/3
of
lsum 02+03+04
SATsum 1/3
of
Isum
01+05
Dark reverse current 10
nA
Termina 1capacitance 3
pF 02,03,04
5 pF
01,
05
Response time(5%·95%) 120
ns 02.03.04
200 ns
01.05
lsum 6.5
7.3
8.1
~Substrate currentcrosstracks In focus
exc 1.strayl ight
lstray 15%of
lsum
Substrate currentwithout disc
HF si9na Ia"" 1itude pp 5.6 ~HF
part ofCAsum
Page 2 CDM12.1 SPECIFICATION
CDM12.1 SPECIFICATION
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