MICROCHIP Costas Loop Management Management Guide
Selelekela
Phetisong ea waelese, Transmitter (Tx) le Receiver (Rx) li arotsoe ka sebaka se hole mme li arotsoe ka motlakase. Le hoja ka bobeli Tx le Rx li hlophisitsoe ka mokhoa o ts'oanang, ho na le ho fokotsa maqhubu pakeng tsa maqhubu a carrier ka lebaka la phapang ea ppm pakeng tsa li-oscillator tse sebelisoang ho Tx le Rx. The frequency offset e lefshoa ka ho sebelisa mekhoa ea ho hokahanya ea data kapa e sa thusoe (e foufetseng).
Costas Loop ke mokhoa o sa sebelisoeng ke data oa PLL bakeng sa mats'eliso a li-carrier frequency offset. Tšebeliso ea mantlha ea li-loops tsa Costas e ho li-receiver tsa waelese. Ka ho sebelisa sena, frequency offset pakeng tsa Tx le Rx e lefshoa ntle le thuso ea lithane tsa lifofane kapa matšoao. Costas Loop e kenngoa ts'ebetsong bakeng sa li-modulations tsa BPSK le QPSK ka phetoho ea thibelo ea ho bala liphoso. Ho sebelisa Costas Loop bakeng sa khokahano ea mohato kapa khafetsa ho ka baka ho se hlaka, ho tlamehang ho lokisoa ka mekhoa e joalo ka phapano ea khouto.
Kakaretso
Tafole e latelang e fana ka kakaretso ea litšobotsi tsa Costas Loop.
Lethathamo la 1. Litšobotsi tsa Costas Loop
| Core Version | Tokomane ena e sebetsa ho Costas Loop v1.0. |
| Malapa a Sesebediswa a Tsheheditsweng |
|
| E tšehelitsoe Sesebelisoa Phallang | E hloka Libero® SoC v12.0 kapa ho lokolloa hamorao. |
| Ho fana ka laesense | Costas Loop IP clear RTL ke laesense e notletsoeng mme RTL e patiloeng e fumaneha mahala ka laesense efe kapa efe ea Libero. RTL e Fetisitsoeng: Khoutu e felletseng e kentsoeng ea RTL e fanoe bakeng sa mantlha, e nolofalletsang mantlha hore e kenngoe ka Smart Design. Simulation, Synthesis, le Layout li ka etsoa ka software ea Libero. Hlakola RTL: Khoutu e felletseng ea mohloli oa RTL e fanoe bakeng sa libenche tsa mantlha le tsa liteko. |
Likaroloana
Costas Loop e na le likarolo tse latelang tsa bohlokoa:
- E tšehetsa BPSK le QPSK modulation
- Tunable loop parameters bakeng sa mefuta e mengata ea maqhubu
Ts'ebetsong ea IP Core ho Libero® Design Suite
IP core e tlameha ho kenngoa ho IP Catalogue ea software ea Libero SoC. Sena se kengoa ka bohona ka IP
Ts'ebetso ea ntlafatso ea Catalog ho software ea Libero SoC, kapa IP core e jarolloa ka letsoho ho tsoa lethathamong. Hang
IP core e kenngoa ho Libero SoC software IP Catalog, motheo o lokisoa, o hlahisoa, 'me o kenngoa ka har'a sesebelisoa sa Smart Design bakeng sa ho kenngoa lethathamong la morero oa Libero.
Tšebeliso le Ts'ebetso ea Sesebelisoa
Litafole tse latelang li thathamisa tšebeliso ea sesebelisoa bakeng sa Costas Loop.
Lethathamo la 2. Tšebeliso ea Costas Loop bakeng sa QPSK
| Lintlha tsa Sesebelisoa | Lisebelisoa | Tshebetso (MHz) | Li-RAM | Math Blocks | Chip Globals | |||
| Lelapa | Sesebelisoa | LUTs | DFF | LSRAM | μSRAM | |||
| PolarFire® SoC | MPFS250T | 1256 | 197 | 200 | 0 | 0 | 6 | 0 |
| PolarFire | MPF300T | 1256 | 197 | 200 | 0 | 0 | 6 | 0 |
Lethathamo la 3. Tšebeliso ea Costas Loop bakeng sa BPSK
| Lintlha tsa Sesebelisoa | Lisebelisoa | Tshebetso (MHz) | Li-RAM | Math Blocks | Chip Globals | |||
| Lelapa | Sesebelisoa | LUTs | DFF | LSRAM | μSRAM | |||
| PolarFire® SoC | MPFS250T | 1202 | 160 | 200 | 0 | 0 | 7 | 0 |
| Mollo oa Polar | MPF300T | 1202 | 160 | 200 | 0 | 0 | 7 | 0 |
Bohlokoa:
- Lintlha tse ka har'a tafole ena li nkuoa ho sebelisoa litlhophiso tse tloaelehileng tsa synthesis le sebopeho. Mohloli oa oache oa litšupiso oa CDR o ne o behiloe ho E nehetsoe ka litekanyetso tse ling tsa tlhophiso tse sa fetoheng.
- Oache e thibetsoe ho 200 MHz ha e ntse e etsa tlhahlobo ea nako ho fihlela lipalo tsa ts'ebetso.
Tlhaloso ea Ts'ebetso
Karolo ena e hlalosa lintlha tsa ts'ebetsong ea Costas Loop.
Setšoantšo se latelang se bontša setšoantšo sa li-block tsa boemo ba tsamaiso ea Costas Loop.
Setšoantšo sa 1-1. Setšoantšo sa Thibelo ea Boemo ba Tsamaiso ea Costas Loop
The latency pakeng tsa ho kenya letsoho le tlhahiso ea Costas top ke 11 clock cycles. Nako ea THETA_OUT ke oache ea 10
lipotoloho. Kp (proportionality constant), Ki (integral constant), Theta factor, le LIMIT factor e tlameha ho lokisoa ho latela tikoloho ea lerata le frequency offset e hlahisoang. Costas Loop e nka nako ho notlela, joalo ka ts'ebetsong ea PLL. Lipakete tse ling li kanna tsa lahleha nakong ea pele ea ho notlela Costas Loop.
Meaho
Ts'ebetsong ea Costas Loop e hloka li-block tse 'ne tse latelang:
- Loop Filter (PI Controller ts'ebetsong ena)
- Theta jenereithara
- Palo ea Phoso
- Phetoho ea Vector
Setšoantšo sa 1-2. Setšoantšo sa Costas Loop Block
Phoso bakeng sa morero o itseng oa ho feto-fetoha o baloa ho ipapisitsoe le litekanyetso tsa I le Q tse fetotsoeng ho sebelisoa Vector Rotation Module. Molaoli oa PI o bala khafetsa ho latela phoso, phaello e lekanang ea Kp, le phaello ea Ki. Thepa e phahameng ea frequency offset e behiloe joalo ka boleng ba moeli bakeng sa tlhahiso ea frequency ea PI controller. Theta Generator module e hlahisa angle ka ho kopanya. Kenyelletso ea theta e etsa qeto ea moepa oa ho kopanya 'me e itšetlehile.
ho sampling oache. Lehlakore le hlahisitsoeng ho Theta Generator le sebelisetsoa ho potoloha boleng ba ho kenya I le Q. Mosebetsi oa phoso o tobane le mofuta oa modulation. Ha molaoli oa PI a kenngoa ts'ebetsong ka mokhoa o tsitsitseng, ho lekanya ho etsoa ka likarolo tse lekanang le tsa bohlokoa tsa molaoli oa PI.
Ka mokhoa o ts'oanang, sekhahla se kengoa ts'ebetsong bakeng sa ho kopanya theta.
IP Core Parameters le Lipontšo tsa Interface
Karolo ena e bua ka li-parameter ho Costas Loop GUI configurator le matšoao a I / O.
Litlhophiso tsa Tlhophiso
Tafole e latelang e thathamisa tlhaloso ea li-parameter tsa tlhophiso tse sebelisoang ts'ebetsong ea hardware ea Costas Loop. Tsena ke li-parameter tsa generic li fapane ho ea ka tlhoko ea kopo.
Lethathamo la 2-1. Tlhophiso Parameter
| Lebitso la Letshwao | Tlhaloso |
| Mofuta oa Modulation | BPSK kapa QPSK |
Lipontšo le Lipontšo
Tafole e latelang e thathamisa likou tsa ho kenya le tse tsoang ho Costas Loop.
Lethathamo la 2-2. Lipontšo tsa ho Kena le ho Tsoa
| Lebitso la Letshwao | Tataiso | Mofuta oa Letšoao | Bophara | Tlhaloso |
| CLK_I | Kenyeletso | — | 1 | Letšoao la oache |
| ARST_N_IN | Kenyeletso | — | 1 | Lets'oao le sebetsang le tlase la asynchronous reset |
| I_DATA_IN | Kenyeletso | E saennoe | 16 | In phase / Real data input |
| Q_DATA_IN | Kenyeletso | E saennoe | 16 | Quadrature / Kenyelletso ea data e inahaneloang |
| KP_IN | Kenyeletso | E saennoe | 18 | Proportionality kamehla ea PI controller |
| KI_IN | Kenyeletso | E saennoe | 18 | Ntho e sa fetoheng ea taolo ea PI |
| LIMIT_IN | Kenyeletso | E saennoe | 18 | Moeli bakeng sa molaoli oa PI |
| THETA_FACTOR_IN | Kenyeletso | E saennoe | 18 | Theta factor for theta integration. |
| KE_DATA_OUT | Sephetho | E saennoe | 16 | In phase / Real data Output |
| Q_DATA_OUT | Sephetho | E saennoe | 16 | Quadrature / Sephetho sa data se inahaneloang |
| THETA_OUT | Sephetho | E saennoe | 10 | Lenane la Theta le baliloeng (0-1023) bakeng sa netefatso |
| PI_OUT | Sephetho | E saennoe | 18 | Tlhahiso ea PI |
Litšoantšo tsa Nako
Karolo ena e bua ka setšoantšo sa nako sa Costas Loop.
Setšoantšo se latelang se bontša setšoantšo sa nako sa Costas Loop.
Setšoantšo sa 3-1. Setšoantšo sa nako ea Costas Loop
Testbench
Testbench e kopaneng e sebelisetsoa ho netefatsa le ho lekola Costas Loop e bitsoang benche ea tlhahlobo ea basebelisi. Benche ea liteko e fanoa ho lekola ts'ebetso ea Costas Loop IP.
Ketsiso Mela
Ho etsisa mantlha ho sebelisa testbench, etsa mehato e latelang:
- Bula sesebelisoa sa Libero SoC, tobetsa Catalog tab, atolosa Solutions-Wireless, tobetsa habeli COSTAS LOOP, ebe o tobetsa OK. Litokomane tse amanang le IP li thathamisitsoe tlas'a Litokomane.
Bohlokoa: Haeba u sa bone Catalog tab, ea ho View > Windows menu ebe o tobetsa Catalog ho etsa hore e bonahale.
Setšoantšo sa 4-1. Costas Loop IP Core ho Libero SoC Catalog
- Lokisa IP ho latela tlhoko ea hau.
Setšoantšo sa 4-2. Configurator GUI
Phahamisa mats'oao ohle ho ea maemong a holimo mme o hlahise moralo - Ho "Stimulus Hierarchy" tab, tobetsa Build Hierarchy.
Setšoantšo sa 4-3. Haha Hierarchy
- Ho Stimulus Hierarchy tab, tobetsa ka ho le letona ho testbench (Costas loop bevy), supa ho Simulate Present Design, ebe o tobetsa Open Interactively.
Setšoantšo sa 4-4. Ho Etsisa Moralo oa Pre-Synthesis
ModelSim e bula ka testbench file, joalokaha ho bontšitsoe setšoantšong se latelang.
Setšoantšo sa 4-5. Fesetere ea Ketsiso ea ModelSim
Bohlokoa: Haeba ketsiso e sitisoa ka lebaka la moeli oa nako ea ho sebetsa o boletsoeng ho .do file, sebelisa run -all command ho phethela papiso
Nalane ea Phetoho
Nalane ea ntlafatso e hlalosa liphetoho tse kentsoeng tšebetsong tokomaneng. Liphetoho li thathamisitsoe ka ntlafatso, ho qala ka khatiso ea morao-rao.
Lethathamo la 5-1. Nalane ea Phetoho
| Khatiso | Letsatsi | Tlhaloso |
| A | 03/2023 | Tokollo ea pele |
Tšehetso ea Microchip FPGA
Sehlopha sa lihlahisoa tsa Microchip FPGA se tšehetsa lihlahisoa tsa sona ka lits'ebeletso tse fapaneng tsa tšehetso, ho kenyeletsoa Tšebeletso ea Bareki,
Setsi sa Tšehetso ea Theknoloji ea Bareki, a websebaka, le liofisi tsa thekiso lefatšeng ka bophara. Bareki ba khothaletsoa ho etela
Lisebelisoa tsa marang-rang tsa Microchip pele li ikopanya le ts'ehetso kaha ho ka etsahala hore ebe lipotso tsa bona li se li ntse li le teng
a araba.
Ikopanye le Setsi sa Tšehetso ea Setsebi ka ho website at www.microchip.com/support. Bolela sesebelisoa sa FPGA
Nomoro ea karolo, khetha mofuta o nepahetseng oa nyeoe, 'me u hlophise moralo files ha u ntse u theha nyeoe ea tšehetso ea tekheniki.
Ikopanye le Tshebeletso ya Bareki bakeng sa tshehetso ya dihlahiswa tseo e seng tsa botekgeniki, jwalo ka ditheko tsa sehlahiswa, dintlafatso tsa dihlahiswa, dintlafatso
tlhahisoleseding, boemo ba taelo, le tumello.
- Ho tsoa Amerika Leboea, letsetsa 800.262.1060
- Ho tsoa lefats'eng lohle, letsetsa 650.318.4460
- Fax, ho tsoa kae kapa kae lefatšeng, 650.318.8044
Boitsebiso ba Microchip
Microchip Websebaka
Microchip e fana ka tšehetso ea inthaneteng ka rona website at www.microchip.com/. Sena websebaka se sebedisoang ho etsa files le
tlhahisoleseding e fumaneha habonolo ho bareki. Tse ling tsa litaba tse fumanehang li kenyelletsa:
- Tšehetso ea Sehlahisoa - Lintlha tsa maqephe le liphoso, lintlha tsa ts'ebeliso le sample mananeo, lisebelisoa tsa moralo, litataiso tsa basebelisi le litokomane tsa tšehetso ea hardware, lintlafatso tsa morao-rao tsa software le li-archived software
- Tšehetso e Akaretsang ea Theknoloji - Lipotso tse atisang ho botsoa (FAQs), likopo tsa tšehetso ea tekheniki, lihlopha tsa lipuisano tsa inthaneteng, lethathamo la litho tsa lenaneo la balekane ba Microchip
- Khoebo ea Microchip - Litataiso tsa ho khetha le ho odara, lingoliloeng tsa morao-rao tsa Microchip, lethathamo la lithupelo le liketsahalo, lethathamo la liofisi tsa thekiso ea Microchip, barekisi le baemeli ba lifeme.
Ts'ebeletso ea Tsebiso ea Phetoho ea Sehlahisoa
Ts'ebeletso ea tsebiso ea phetoho ea sehlahisoa sa Microchip e thusa ho boloka bareki ba le teng ka lihlahisoa tsa Microchip. Ba ngolisitseng ba tla fumana tsebiso ea lengolo-tsoibila neng kapa neng ha ho na le liphetoho, lintlafatso, lintlafatso kapa liphoso tse amanang le sehlahisoa se itseng sa lelapa kapa sesebelisoa sa ntlafatso sa thahasello.
Ho ngodisa, eya ho www.microchip.com/pcn 'me u latele litaelo tsa ho ngolisa.
Tšehetso ea Bareki
Basebelisi ba lihlahisoa tsa Microchip ba ka fumana thuso ka likanale tse 'maloa:
- Morekisi kapa Moemedi
- Ofisi ea Thekiso ea Lehae
- Embedded Solutions Engineer (ESE)
- Tšehetso ea tekheniki
Bareki ba lokela ho ikopanya le mofani oa bona oa thepa, moemeli kapa ESE bakeng sa tšehetso. Liofisi tsa thekiso ea lehae le tsona li teng ho thusa bareki. Lethathamo la liofisi tsa thekiso le libaka li kenyelelitsoe tokomaneng ena.
Tšehetso ea tekheniki e fumaneha ka ho websebaka ho: www.microchip.com/support
Karolo ea Tšireletso ea Khoutu ea Lisebelisoa tsa Microchip
Ela hloko lintlha tse latelang tsa ts'ireletso ea khoutu lihlahisoa tsa Microchip:
- Lihlahisoa tsa Microchip li kopana le litlhaloso tse fumanehang ho Microchip Data Sheet ea bona.
- Microchip e lumela hore lihlahisoa tsa eona li sireletsehile ha li sebelisoa ka mokhoa o reriloeng, ka har'a litlhaloso tsa ts'ebetso, le tlas'a maemo a tloaelehileng.
- E boloka boleng ba Microchip mme ka mabifi e sireletsa litokelo tsa eona tsa thepa ea mahlale. Boiteko ba ho tlola likarolo tsa ts'ireletso ea khoutu ea sehlahisoa sa Microchip bo thibetsoe ka thata 'me bo ka tlola Molao oa Copyright oa Millennium oa Digital.
- Ha ho Microchip kapa moetsi ofe kapa ofe oa semiconductor ea ka netefatsang ts'ireletso ea khoutu ea eona. Tšireletso ea khoutu ha e bolele hore re tiisa hore sehlahisoa "se ke ke sa robeha". Tšireletso ea khoutu e lula e fetoha. Microchip e ikemiselitse ho tsoela pele ho ntlafatsa likarolo tsa ts'ireletso ea khoutu ea lihlahisoa tsa rona
Tsebiso ea Molao
Sengoliloeng sena le lintlha tse mona li ka sebelisoa feela ka lihlahisoa tsa Microchip, ho kenyelletsa ho rala, ho etsa liteko,
'me u kopanye lihlahisoa tsa Microchip le kopo ea hau. Tšebeliso ea tlhahisoleseling ena ka tsela efe kapa efe e khahlanong le tsena
dipehelo. Lintlha mabapi le lits'ebetso tsa lisebelisoa li fanoe molemong oa hau feela 'me li ka nkeloa sebaka
ka lintlafatso. Ke boikarabello ba hau ho netefatsa hore kopo ea hau e kopana le litlhaloso tsa hau. Ikopanye le ya hao
Ofisi ea thekiso ea lehae ea Microchip bakeng sa tšehetso e eketsehileng kapa, fumana tšehetso e eketsehileng ho www.microchip.com/en us/support/design-help/client-support-services.
TSEBISO ENA E FUMANA KE MICROCHIP "JOALOKAHA E LE". MICROCHIP HA E ETSE LITLHAKISO KAPA LITIISETSO TSA MOFUTA OFE kapa O fe Ebang E BONAHALA KAPA E BONAHALA, E NGOLOA KAPA MOLOMO, MOLAO KAPA HO SE EMONG, E Amanang le LITSEBISO HO kenyeletsoa EMPA E SA FUMANE LE TIISETSO EFE KAPA EFE E FUMANEHLENG LE TLAMELO. BAKENG SA MORERO O KHETHEHILENG, KAPA LITIISETSO TSE AMANG LE MAEMO A OONA, BOLEMO, KAPA KETSAHALO EA OONA.
HA HO LE TSATSAHALO, MICROCHIP E TLA BA MOTHO OA MOLATO BAKENG SA LITABA LIFE, TSE KHETHEHILENG, TSA KOTSI, TSATSAHALO, KAPA TAHLEHELO E LATELANG, TŠENYEHO, LITŠEnyehelo, KAPA LITJEHO TSA MOFUTA OFE O TLANG LE LITSEBISO KAPA TŠEBELETSO EA LONA, LE HO KA ETSAHALA KETSAHALO E ETSANG. TSE KA E KA ETSAHANG KAPA MESEKO E BONAHALA. HO FIHLELA KA HO FETISISA HO DUMELLA KE MOLAO, BOIKARABELO KAOFELA BA MICROCHIP HO LIKELETSO KAOFELA KA TSELA EFE KAPA E MABAPI LE TSEBISO KAPA TŠEBELETSO EA YONA E KE KE E FEELA BOLIMO OA LITEFO, HA E LE TSE LE FELA, TSEO U LI LEFILENG KA THOTLHALA BAKENG SA MICROCHIP.
Tšebeliso ea lisebelisoa tsa Microchip ts'ehetso ea bophelo le/kapa lits'ebetso tsa ts'ireletso e kotsing ea moreki, 'me moreki o lumela ho sireletsa, ho qosa le ho boloka Microchip e se nang kotsi ho tsoa lits'enyehelo tsohle, likopo, lisutu, kapa litšenyehelo tse bakoang ke ts'ebeliso e joalo. Ha ho lilaesense tse fetisoang, ka mokhoa o hlakileng kapa ka tsela e 'ngoe, tlasa litokelo life kapa life tsa thepa ea mahlale a Microchip ntle le ha ho boletsoe ka tsela e ngoe.
Tsamaiso ea Tsamaiso ea Boleng
Ho fumana leseli mabapi le Tsamaiso ea Tsamaiso ea Boleng ea Microchip, ka kopo etela www.microchip.com/quality.
Lithekiso le Tšebeletso ea Lefatše Lohle
| LIMAKASE | ASIA/PACIFIC | ASIA/PACIFIC | ULAYA |
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Litokomane / Lisebelisoa
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MICROCHIP Costas Loop Management [pdf] Bukana ea Mosebelisi Costas Loop Management, Loop Management, Management |