IC BLOCK DIAGRAM& DESCRIPTION
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IC301 LA9250M (Analog Signal Processor)
L
1
2
3
4
5
6
7
8
9
la
11
1:
13
14
1!
18
4s
47
44
4s
u
4s
42
41
40
. .
L-II
aw’na
Swb
m
as
42
Smw?w
w
Ss
I
17
18 19 20
21222s242s2s 27 ‘a~~
31w
No. Pln Nerna
Function
1
FTN2
Pick+p phofadada Wrme@m
@n.Addedto HN!Pintaganerafetha
RF eianef. SUMra3ed frcm FTN1 tin to aenerata the FE sand.
-.
,-
2
FTN1
f%ck+ippfmta-dadecannecrkx pin.
3
E
WW@lw-ww”m” ‘~ ’m’dn’og-e
4
F
Pick-fJpphatadicda connectionpin.
5
TB
TE signal IX rxs?pcment
inputpin.
6
TE-
PIN whii cmrmectthe TE signalgain settingreeiatw bafwea ftsiipin
and TE dn.
7 TE
TE signalcutpuf@n.
6
TSEI
TES(Treck ErTw Senee)ccmparetor inputpin.The TE signalis input
tharcugh a bacd@aa filtw.
1
J
9
Scl SImck rktdfm irmuftin.
10 TH
Trddng gain time candent setting@n.
11 TA
TA ampfiier outputpin.
12 TD-
Pinfw crmf wing the traddrg phase carqwsaticm constantbatwem
v
the TDand Rpm.
13 TD
Traddrg phasecarnpsnsatkmsetting@n.
14 JP
Tra%ng ju~ eignal(kkk pulse)ampWudesettingph.
15
TO
Trddg wntrd aQnalauSpufpin.
16
I
NC
lNoccmadim
17 FD
lFocueingrmtrd signalwtpul pin.
I I
1
1
19 FA
Pin fw canf@hg the focustig phase carnpenaaticmccmtant the FB
and FA- dns.
21 FE
FE
signaloutput@n.
2?
FE-
Pin whii c.wmede the FE signalsettingrmietarbatwaaI thispinand
FE ph.
a
‘p
Invtiad outputof CLV pinaignd.
24 SFG
12-cM sdtie rrwda aain aeWIO resistc4cmnnacticmoin.
131
sP-
Isdde dlaaemrfmanaalicmcnnstantdn.akmawith
SPD tin. I
1231 SPD lS4-indlecmlrd aianaiauimt oin. I
.,.,-,.-=.- .... ....-.
—,,”., w frequency.
$.-s, ~.
1
No. [ PIN NAME I
Function
23
I
SLOF
ISM servooffccatid infxslpin.
?3
NC Nocamacfb.
43
TJP Inpd pinfar trackingjump signalfrcm DSP.
41
TGL
In UIpin{w tracking gain mntid dgnal frcm DSP. Gain is law where
TgL ishgh.
a
TOFF
In @nfw fmddng offcontrolsignal from DSP. Trecldrg servo is off
P
w an TOFF is hgh.
43
TES
w @nfar TES signalto DSP.
44
HFL
The Hgh Fraquwy Levaf is ussd to dstsrmine wtwfhw the main beam
is paaibanad over a pi of aver the mirrmd surface.
e CLV
Input@ fw CLV errw signalfrom DSP.
6
GND GND
47 RF
RF output@n.
46
RF-
S%I%%%%:’”*”3T-*” ‘Mmwpn’
~ I .qC l~~iLevef-d isan cuw @nthstcantid thedate dii ISVaIused
v the
DSP fw the RF wava-fwm.
1
I
.,. –
50 SLf
Ilrput pinusedby DSP farcontrollingthedate alii level.
51
DEF Discdefectdefectionoutfxltpin.
S? DRF
RF leveldatacticawfput(flefect RF)
S3 ‘SC
FOCUSsearchamaofhirwcapsdtoroutputpin.
I
1
-.
-.
5
‘SS
Focue Search Sal@ frxue eaamh mada(+-seerch / + search vs. the
refererwe voltage) switchingpin.
~ Vcc kc
,... ....~,..
m hdd capacitormnecfkm pin.
~,t -put pin.
.,,h;-, # .&”
[
64
I
NC lNomnrWian.
I
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