P.eliminary speciÍicalion
SatelliteÍront ends
APPLICATION ThesFgl0 salellilêÍont endíamily is d6ignedro coveral Íequencies in lhe ange oi 950lVHzlo 1750MHz Íhêy aremeanllor bolh DlD2-t\,lAC DBSand PAUSECAM Ïhe sF910hasa buil-lndigirarly conÍoll6d(l2c bLs)PLI luninq system.ThelF panis €quippèd wilh
SFgí0Íamily
OUICKBEFEFENCE DATA Sysl€m Frequoncy band cr^an4êls y (nole1) hrêrmed. reÍrêquenc polarry Beseband v,deo
oAL,SLCAÍV I O-/D2-MAC. ló50 MHz o 1750ÀrHz ll roá0 n ac6rdànc€$ilr waBc/? | 479.5MHz lposiivó
L ThêoeilatorÍèquencyis higherlhanthe aerialsignallr€quency.
Thê D'veÍsion hasa dualswllchable AVAILABLE VEFSIONS inpulwhichiscontrolled viaan 2 C b rs T hêS F 914andS F g l 4 D AMTSBLAÍT/ CATALOGUE TYPE INPUfCONNECTOF(S) meellhê requiremènls Íor radiaion CENELEC NUMBEF in accoÍdance wth Iireamondmênl sF912 (57dBpW). lo CENELÊC ËN55013 sF9l20 EC(íemae 3122237 14551 DESCRIPTION s F 9 1 4 0 EC(lsmal€and Ec lmals) 3122237 10561 Thes€satêiteÍont endsarea combinalion ot a lunê.covong á lrequency rangeoÍ 950À4Hz to 1750[,lHzandan lF signal Thetuneris liriedwlfl aboadband malching nelwo* lollowedby an RF amplilier whch is l@dedwilhan lill€r ele.lronically lunedbandpass Theselected channelis mix€dwilh a synlhesized oscllaloÍsignallo lrêquèncy oblan an intêrmediàl€ (lF)whchin lLrrnpass€s lo a liller anda gainconlroll€d amplilier ThelF unilconlains a SAWÍlter iollowedbya buÍÍerampllieíandá PLLFM-demodu alor The demodulal€d sg.a s ar€appliêdlo a vldeobuÍleÍampilerrodrivèrhê videosignalprocessing cÍclit. Thêuntis mountedn a m€lal housngwithlronland€ cov€rs.
247
P.eliminaryspêciíi€t on
SatelliteÍrontênds
SF9'10 family
BLOCKDIAGFAM
PINNING PIN
A2 5 6
13
SEMICONOUCTOF COiIPONENÍLIST BF Ímsisror I BFG93AF P r Ndi ode | H V F1B T Mirerlransistor |BFF92A Oscillalor lÉnsisror BFFI93A Tunngd odês I BB€11 PLLIunhg lC l S p5OssS l F Í ànssi ors * B FS O1F | B FB 92A F mp rC l !pC 16B 8G
FUNCNON a€ alinpul2 (male,o-v€Éion) LNCwJtagêsupply(D-vêrsion) lunerseclionvoltagesupply ScL (s€ialclocklinê)l2c.buscontrcl SOA(sèiál dala line) l2c-bus contrcr
17 19
24 M1 M2
cvBs bas€bandouFut {F$ct on voltag€supply
24
sawfrlêr
lBs29
PLLdÊmodulatorlo v a ri €pdod€ vrdêohansistor
ITDA873O l OF4199 lBc848B
Píêliminary specilicálion
SatelliteÍrontends
SF910Íamily
ÍIIÊCHANICAL DATA
@ @ @o @ @
@
o
@
o
o
T L
sF91ZSF9l4 IEC(iêmale) 75 o sF912D/SF914D lEc (lêínarê) / lÊc (mqlê)75 o Fig.2 Me.han €l olllin€.
DÀTA ELECTFICAL valuesapplyat an mbièfl temperàture oÍ 25:i5 rc, a r€latvehumidity UnlêssolheMis€speciti€d allelocMcal oÍ 60110%,tlner andPLLsupplyvoltagês al510.2 V,an lF supplyvollagÊ oÍ 1210.3V anda luningsupplyvollagè oÍ 33 10.5V viaa 22 o sêiês í€sislor, S€ênolê1, PAFAMETEF voltagesand curíênls Tun€rs€ctonlohágêsupply CurenrdrawnÍrcm+5 V supply lF sectonvoltêgêsupply CuÍenl dlawnÍrcm+l2V Tuningvollagêslpply {nolê2) Tuningvollag€supplyc]llíenl
UNIT
150 '132
33 1.7 20 400
LNC vollag€supplydÍenl
1. Thelronrendisiunedby heansol a buill-inl2o-busconlrclled slithesizêr.Fortufthèrinlomalionr€16rio Applicalion hlormailon. ol 22 ko t5'Á Ínuslbêconnêclêd belwêênlhe luningvollag€spply andpln 11 2. An extÊnalpullup resistor
249
Pr€lminary specícaron
Satellite frontends
S F 9 1 0f a m ily
CHARACTEFISTICS A lsprc "ed np,l pvelc êr lo 75 OinpLlimpedarce. 'p CONDITIONS
UNIT
MIN.
FF inpurcharacrerisrlcs 1.5
3
6
Tuningíangê(cariêrlíequêncy) [,largn al enremechannels Oscilato.vollagèataerialinput Íom 40 MHzto 1750 l\,fl-lz Íoín 1750MHzlo 2250MHz
dB
79 1735
965 2A
dBFV MHz MHz
54 76
dBrtV
15
dB
5
50 Channel1 in-channel inleímodulauon ln-bandinleÍmodulanon
79
10 50 60 85
dB dB dB!V
79
dB pV
aFc outpurchà.acleri3lica 3
DC evêlwh€n coÍ€clly lLned
3.8 90 22
AGCourpurcharacro.isric6 10
kíl
t00 loí79 dBfV unmodualedÊF inpulsignal lor44 dBuVunmodualed RFinoulsional
3.5 7.5
DC lêvel
470 2.3
250
28
Proiminàrysp€cilic€lion
Satellitefrontends
PAÊAMETEF
SF910Íamily
CONDITIONS
UNIT
Íll N,
condirionB. unlê6solhêMb€ spêcllled) PALvldêochar.ctêrlstl€ (moa3u.êmenr 60 m€asu€din 27 MHzbandwidlh
30
dB
MODUUT ON PAFAMÊTERS
píêldê-emphasis CCIR-40s PALcod€dvid€osignal
25
550 m€asuÍêdÍom toPsynclo pêa,k Basêbandt€quêr'cy rêsponsê
Unweighlêd slgnaflo-nolsêÉlio
marlmumampliluds dêvialion bêtweên0.1[,lHzands [,lHz lhê c limilátwhichclicksin a 75%saturalêdcolourbaí are jusl
c/N = 14dB lr€qu€ncy 16l,lH2lr' devialion Ír€qu€ncy d€vialion 16l,fHz^r'
Secondod€r inlsmodulation (Ihê lê!€l d íêíêncÊ b€lwêena 3.25MHzvideocaílêÍ andils sèc$ndháÍmonic ar 6.5MHz) Í$ACvld€o characlerbllct
39
0.5
dB
13
dB
dB dB
40
dêg 6
25
ds
30
I,IOOUUT|oN PAFAMETÉFS
B6ebad lÉquêncyíêspons€
EBUpr€-/de-emphas s D2-[,|AC
13.5
msasurêd Ímmblackto whilê
700
maxlmum amplilr'dê dêviaiion b€twoen 0.1 MHzand10 MHz $lê c/N llmitarwhlch clicksn a 75'l.etuht€d @loLr! barar€just C/N va|ll€lor BER = 10-o C/N valu€loÍ BEB = lo 5
251
dB 9
dB
I
dB dB
11
Prêlimlnarysp€clÍcallon
Satêllitefrontênds
SF910Íamily
LOGICTABLES R EADMO DE( F M . 1)
tsB
LSB I
0
0
t2
|l
t0
Slalus bt4eeplanalion PowêÍon resêtlndlcaloÍ,sêt !o loglc 1 iÍ lhê powéÍsupplyto th€ d€vicshasdrcpp€d Th€ PORis s€t to 0 wiên th€ .êàd sequoncÊis lsminal€d by a slop command Phdê LoêkDêlêclFlag: 1 = dêvicêis phasÊlockêd t2 t1 ,t0
No Ísbvanl inÍoímton sraruspon€P5 aÍÉ P4
42, Al , and A0
5 le!€l ÀD convon€rdataííoÍn P6, Én b€ us€dlo i€ed AFCinlomallon Íromlhê lF seclionto ihe micloProc€so!
FEÀOMODEMOM PROCËESOR
Tablê 2
stad
STB STB
stàrt
Noacknowlsdge Slaít
êndoí dala slarl condilion
Ack STB Slop
acknowlêdgê stalusbyr6 stop condition
1991 S€pt€mbeÍ
Siop
252
Pl€liminaíyspeclrcalion
SF910family
SatelliteÍrontends
Tablê 3 LSB
MSB 1
0
0
n13 n6
n5
CP
T1
P6
P5
0 .12
0 n11
n1o
n3
n2
n8
n1
n0
1
os
bÍê 2 Í0
1 P3 (not€1)
byle2
1. P1 and P2 not connêcl€din írê lC padGge
Th€addíêssol ltl€ lÍont€ndis Íxéd MAo)= (1,1)andalso ro c6r(r\,ra1, Í*ponds lo C2:(MA1,[,1A0)=(0, 1)
253
PGliminaÍyspêcifcàlion
SFg10family
Satellitefrontends
Prcglamtnablêdlvldêr 3êtllng DlvidêÍÍario
N = 16 )({Íd,pc+ ÍiÍ,pc)(MHr) F o € c = N /1 6(M H z ) N = i16384x n14)+ (81s2x n13)+ (4090x n12)+ (20,4x n11) + (1024x n10)+ (512x n9)+ (256x nB)+ (128x n4 + (64x n6) + (32x Í5) + (16x n4)+ (8 x n3)+ (a x n2)+ (2 x n1)+ (n0)
ChaÍgepumps€tltng
CPcanb€setlo oitheÍ0 {LOwcurenl)or 1 (HIGHcurrêno.CP= 1 Íssultsin Íast€stluning Tl , T0 = 0 Íor nomd operalion OS = 0 ior nomd opêíanon OS = I swltchsshs chafS€pumplransistorto a non-conduclingsiat€,thê Írcnt ênd can rhênbê tunedÍ'anually wih a vadablêtunlngvolragêappllêd to pin11 Whensêlelins OS = 1, il is íecommêndêdlo sêt simullanêouslyT0 = 1.
Têstnode setting PLLdisabling
PoÍ Polo P5 Poí PO
Potl P7
Í)olus€d l/Opoí13 odput 0 lor HIGHihp€dance 1 lor LOWihpodace oulpul ll lhe pon is to be us€das an inpd pod il shouldmt be programmedto oulPuta Low imP€danc€stats lor singl€inpulwrsion: P7 = 0 lo. nomd opèratjon ior dualinp'nv€F on (mtennainp'nslel) P7= 0 lor inpd BF1 P7= 1 lor inputBF2
254
Preliminary speciti€iion
Satellitetrontends
SF910family
WBITEÍ\,1ODE
Slarl Slarl Slárl
stad
OV1 dividèrraliobylê1 DlV2 dividerratiobyr62
D D D D
o v2 o v2 o D v2
cBr
cB2
csl
cs2
cB1 cB1
Stop
cB2
Slop
D IV l
D IV l
Th€AFCsignalcomingoul on pin 2 2i s a p p i ê dl o a s m p l eíÍslorder lowpa$liller(F4 - C) lo removelhe vldêoandÍÊquencydispercal signal in od€r to obtaina DCs gnallhals íor thêcenteír€qusncy a mêasur€ ollhe FMsignaenleingihe dêmodulátor Wlh F4 = 470ko and C = 1 0 0n F a s u i l a b le ow pa$fl i er
A simplelowlÍequency opeÍaliona ampliliêr is used10makeaDClevel shitlandslop€adjustmenl so thal INFOFMANON APPLICAT|oN t/o rheouFut(vo) malchesrhe window. converlêr ThÊ!/D conveíerhas5levelsrd9i.9 iiom ForlLntrerinlormation ÍêgaÍding 000to 100wilhlhe midlov€|010 generalaspectsol lzc-buscontrol, corÍespondng lo th€windowcênlfê eÍet lo "Thelzo-bus speciíiêalion' a.dnd 1.88 V and a w ndowol publlsh€d by Philipscomponênls. abou 750mV Fo.a luning accu€cyol11 ]\,lHz, Ê2 MHz lrequêncy windowis .equred.Wilh An €xamplê oí a simpleAFCsyslêm lhe demodulálor slopêol aboul lor lhê lrontêndin combinalionwiu' 85 mV/MHz, a 2 MHzwindowát rhe an inlêdacêci.cultis brlêfly AFCoulpuleqLáls170mV. Th€relore circlitmusr thelnrerlace pÍovidêá galnoí 750mv/170mv = Íhe syslêmmakesus€oí lhe inleÍnalÁ/D convêrtêroÍ ltrs PLL lr€qu€ncy in thetuner synlhêsizer Th€ rêsisloB€n be @lculáted Íom ihê Íollowing êqualions:
G= (1+ R l )+ B x Rx= F2 + R3+x R3_+(83++ R3 ) F3+is flê vau6 bêlwe€nlh€ F3- is lhe valuebeiweenihe wipff ol R3andground V O= N 1xG) (V S xFl xR 3) Íhe d gital valuêslrom the A/D c^onveneí oulputcanbs rsadvialhê lzc-busandpmcessêd by1irê mlcro.onlrollerthál controlsthe luningsyíem Th€soÍwarelor lh€ AFCluningsysl€mmuslbe ablêto hafdlea cuÍvêshownn F9.4. A deínonslralion sollwaGpáckagê is avaiabë iÍom Philps CoÍnponenls loÍ @ntrclling all1!ning íunctonsol a PLI synlh€sizêd tuningsysl€mlor satêllilê r€ceivêís. ll ÍêqliÍesa MS-DOS opêÉllng syslêmand ons on lB[,] PCÀT/AÍ computêrs of c^ompaliblês. For controlollnê lzc.busan nt6rÍáce boardis rêquirêd whichis plugged port. intoth€comput€isCÊntÍonics
Pr€liminary sp€cilicálion
Satellitefrontends
S F 9 1 0f a m ily
ÍVtouoiing thê unlt on a píln!êd wning boá.d(PwB) Thounitmustbe ndnt€d on lhê b@d€ns! ng lhal hêrê is no cl€alanceb€tw6ênthê suppoíling surÍsces andrh€ PWB. ln hls condftonu'ê unillssold€red ïnis c€n be achievsdby: (á) PÉsing trê unilvêíticálly on rh€PwBdu .g sold€ing (b) Slppodinglilê unilwllhlls in lh€ 9tÍ aêrialconnector (c) Twistlnglh€ gíoundlags (see Flg.5). In orderto pEvênt any strêsslo thê PWB1tis recommênded hal lh€ unit ls supporledat ils a€ alconn€clor
Fig.3AFCinteÍacêcircuil.
I
viewedíom lhê soldeÍsidê,
ssptsmb€r1991
2&
PÍêlimináÍysp€cilicalion
SatellitêÍÍontends
SF910íamily
.99
L;,;A#-#
3 ';
.ffi
r
---ry,,t4 r 1s':"
d*-r+boo r+ F
'
p'--
óoo-tW
J -r 3,
Viêwêdtom lhê soldsÍsldê. (l ) Additonalhds ioÍ êxtraÍlÍng wih a pan lap scr€w2N. mar(lsnglh 4.05mm. Flg.6Piêídngdiso,ám.
2a7
ffi
W
