UM960 High Precision RTK Positioning Module
UKUFAKA NOKUSEBENZA
IMANIWALI YOSEBENZISAYO
WWW.UNICORECOMM.COM
UM960
BDS/GPS/GLONASS/Galileo/QZSS
I-All-constellation Multi-frequency
High Precision RTK Positioning Module
Copyright© 2009-2023, Unicore Communications, Inc.
Idatha ingashintsha ngaphandle kwesaziso.
Umlando Wokubuyekeza
| Inguqulo | Umlando Wokubuyekeza | Usuku |
| R1.0 | Ukukhishwa kokuqala | Septhemba, 2022 |
| R1.1 | Engeza isigaba 3.1 Idizayini Encane Enconyiwe Lungiselela isigaba 3.2 Idizayini Yokuphakelayo kwe-antenna Lungiselela isigaba 3.3 Ukuvula nokucisha Engeza isigaba 3.5 Idizayini Yephakheji Enconyiwe ye-PCB |
Septhemba, 2022 |
Le manuwali ihlinzeka ngolwazi nemininingwane ngemikhiqizo ye-Unicore Communication, Inc. (“Unicore”) okukhulunywe ngayo lapha.
Wonke amalungelo, isihloko nezithakazelo zalo mbhalo kanye nolwazi olufana nedatha, imiklamo, izakhiwo eziqukethwe kuleli bhukwana zigodliwe ngokugcwele, okuhlanganisa kodwa akukhawulelwe kumalungelo okushicilela, amalungelo obunikazi, izimpawu zokuthengisa namanye amalungelo obunikazi njengoba imithetho ebusayo efanelekile inganikeza, futhi lawo malungelo angase aguquke futhi agunyazwe, abhaliswe noma anikezwe kulo lonke ulwazi olushiwo ngenhla nanoma iyiphi ingxenye(i)ngxenye yalo nanoma iyiphi inhlanganisela yalezo zingxenye. I-Unicore iphethe izimpawu zokuthengisa ze, “UNICORECOMM” kanye nelinye igama lokuhweba, uphawu lokuhweba, isithonjana, ilogo, igama lomkhiqizo kanye/noma uphawu lwesevisi lwemikhiqizo ye-Unicore noma uchungechunge lomkhiqizo wabo okukhulunywe ngalo kule manuwali (ngokuhlangene “Izimpawu Zokuhweba Ezingafani”). Le manuwali nanoma iyiphi ingxenye yayo, angeke ithathwe njengokusho, ngokusobala, ngokushiwo, nge-estoppel nanoma yiluphi olunye uhlobo, ukunikeza noma ukudluliselwa kwamalungelo kanye/noma izithakazelo ze-Unicore (okuhlanganisa kodwa kungagcini nje kumalungelo ophawu lokuhweba ashiwo ngenhla), ngokuphelele noma ingxenye.
Umshwana wokuzihlangula
Ulwazi oluqukethwe kuleli bhukwana luhlinzekwe “njengoba lunjalo” futhi kukholakala ukuthi luyiqiniso futhi lulungile ngesikhathi lushicilelwa noma lubuyekezwa. Le manuwali ayimele, futhi kunoma yikuphi, ngeke kuthathwe njengezibopho noma iwaranti ngasohlangothini lwe-Unicore maqondana nokufaneleka kwenjongo/ukusetshenziswa okuthile, ukunemba, ukwethembeka kanye nokunemba kolwazi oluqukethwe lapha.
Ulwazi, olufana nokucaciswa komkhiqizo, izincazelo, izici kanye negayidi yomsebenzisi kuleli bhukwana, kungashintshwa yi-Unicore nganoma yisiphi isikhathi ngaphandle kwesaziso sangaphambili, okungenzeka kungahambisani ngokuphelele nolwazi olunjalo lomkhiqizo othile owuthengayo.
Uma uthenga umkhiqizo wethu futhi uhlangabezana nanoma yikuphi ukungqubuzana, sicela usithinte noma umsabalalisi wethu wasendaweni ogunyaziwe ukuze uthole inguqulo yakamuva yale manuwali kanye nanoma iyiphi i-addenda noma i-corrigenda.
Isandulelo
Lo mbhalo uchaza imininingwane yehardware, iphakheji, imininingwane kanye nokusetshenziswa kwamamojula we-Unicore UM980.
Abafundi Abaqondisiwe
Lo mbhalo usebenza kochwepheshe abanobuchwepheshe bokwamukela i-GNSS.
Isingeniso
I-UM960 isizukulwane esisha semojula ye-RTK yokunemba okuphezulu kwe-GNSS evela ku-Unicore. Isekela wonke ama-constellations namafrikhwensi amaningi, futhi ingalandelela kanyekanye i-BDS B1I/B2I/B3I/B1C/B2a + GPS L1/L2/L5 + GLONASS G1/G2+Galileo E1/E5a/E5b + QZSS L1/L2/L5 + SBAS . Imojula isetshenziswa kakhulu kuma-UAV, umshini wokugunda utshani, idivayisi ephathwa ngesandla, i-GIS enembayo ephezulu, ezolimo ezinembayo, kanye nokushayela ngobuhlakani.
I-UM960 isuselwe ku-NebulasⅣ TM , i-GNSS SoC ehlanganisa i-RF-baseband kanye ne-algorithm yokunemba okuphezulu. Ngaphandle kwalokho, i-SoC ihlanganisa i-dual-core CPU, i-high speed point processor kanye ne-RTK co-processor enomklamo wamandla aphansi angu-22 nm, futhi isekela iziteshi ezinkulu ezingu-1408 futhi ibona ukuphuma kwe-20 Hz RTK. Konke lokhu okungenhla kunika amandla ukucutshungulwa kwesignali okuqinile.
I-UM960 ifaka usayizi ohlangene ongu-16.0 mm × 12.2 mm. Yamukela amaphedi e-SMT, isekela ukukhetha nendawo kanye nokuhlanganiswa okuzenzakalelayo okugcwele kwe-reflow soldering.
Ngaphezu kwalokho, i-UM960 isekela ukuxhumana okufana ne-UART, I2 C , ehlangabezana nezidingo zamakhasimende ezinhlelweni zokusebenza ezahlukene.
Isixhumi esibonakalayo esigciniwe, asisekelwe okwamanje.
1.1 Izici ezibalulekile
- Ukunemba okuphezulu, usayizi ohlangene kanye nokusetshenziswa kwamandla okuphansi
- Ngokusekelwe esizukulwaneni esisha i-GNSS SoC -NebulasIV TM , ene-RF-baseband kanye ne-algorithm yokunemba okuphezulu okuhlanganisiwe
- 16.0 mm × 12.2 mm × 2.6 mm, idivayisi yokukhweza phezulu
- Isekela isixazululo sokumisa se-RTK se-constellation multi-frequency on-chip
- Isekela i-BDS B1I/B2I/B3I/B1C/B2a + GPS L1/L2/L5 + GLONASS G1/G2 + Galileo E1/E5b/E5a + QZSS L1/L2/L5 + SBAS
- Wonke ama-constellations kanye namafrikhwensi amaningi enjini ye-RTK, nobuchwepheshe bokucubungula be-RTK obuphambili
- Ukulandelela okuzimele kwamafrikhwensi ahlukene, kanye ne-anti-jamming ye-narrowband engu-60 dB
- Umsebenzi othuthukisiwe wokutholwa kwe-jamming
1.2 Imininingwane Ebalulekile
Ithebula 1-1 Imininingwane Yobuchwepheshe
| Ulwazi Oluyisisekelo | |
| Iziteshi | Iziteshi ezingu-1408, ezisekelwe ku-NebulasIV TM |
| Imilaza | GPS/BDS/GLONASS/Galileo/QZSS |
| Imvamisa | I-GPS: L1C/A, L2P(W), L2C, L5 I-BDS: B1I, B2I, B3I, B1C, B2a I-GLONASS: G1, G2 UGalileo: E1, E5b, E5a I-QZSS: L1, L2, L5 |
| Amandla | |
| Voltage | +3.0 V~ +3.6 V DC |
| Ukusetshenziswa kwamandla | 450mW (Okuvamile) |
Ukusebenza
| Ukunemba Kokumisa | Iphuzu Elilodwa Elivundlile 1.5 m | |||
| Ukuma (RMS) Ukuma: 2.5 m | ||||
| I-Horizont 0A m I-DGPS (MS) |
||||
| Ukuma: 0.8 m | ||||
| Okuvundlile 0.8 cm + 1 ppm Ku-(RMS) |
||||
| Okuqondile: 1.5 cm + 1 ppm | ||||
| Ukunemba Kokubuka (RMS) | I-BDS | I-GPS | I-GLONASS | UGalileo |
| 1311/1.1 C/A/G1/E1 I-Pseudorange | 10 cm | W an | 10 cm | 10 cm |
| I-BlU Ll C/A/G1/El Carrier Phase | 1 mm | 1 mm | 1 mm | 1 mm |
| 1:12UL2P/G2/E5b Pseudorange | 10 cm | Wan | 10cm | 10 i |
| I-E2UL2P/G2/E5b Isigaba Senkampani Yenethiwekhi | 1 mm | 1 mm | 1 mm | 1 mm |
| 113UL5/E5a I-Pseudorange | 10 cm | Wan | 10 cm | 10 i |
| Isigaba senkampani yenethiwekhi ye-B3UL5/E5a | 1 mm | 1 mm | 1 mm | 1 mm |
| Ukunemba Kokushaya Kwesikhathi (RMS) | 20 ns | |||
| Ukunemba Kwesivinini (RMS) | 0.03 m/s | |||
| Isikhathi Sokulungisa Okokuqala (TIFF) | Ukuqala Okubandayo c 30 s | |||
| Isikhathi Sokuqalisa | c 5 s (Okuvamile) | |||
| Ukuqala Ukuthembeka | .99.9% | |||
| Izinga Lokubuyekezwa Kwedatha | 20 Hz Ukuma | |||
| Idatha Ehlukile | I-RTCM 2.3, RTCM3x, CMR | |||
| Ifomethi Yedatha | I-NMEA-0183; I-Unicore | |||
| Imininingwane Engokwenyama | |
| Iphakheji | 24 pin LGA |
| Ubukhulu | 16.0 mm × 12.2 mm × 2.6 mm |
| Imininingwane Yemvelo | |
| Izinga Lokushisa Lokusebenza | -40 °C ~ +85 °C |
| Izinga Lokushisa Lesitoreji | -55 °C ~ +95 °C |
| Umswakama | 95% Akukho ukufingqa |
| Ukudlidliza | I-GJB150.16A-2009; I-MIL-STD-810F |
| Ukushaqeka | I-GJB150.18A-2009; I-MIL-STD-810F |
| Amachweba asebenzayo | |
| UART x 3 | |
| I2C x 1 |
1.3 Umdwebo Webhulokhi 
- Ingxenye ye-RF
Umamukeli uyahlungwa futhi athuthukiswe isignali ye-GNSS kusuka ku-antenna ngentambo ye-coaxial. Ingxenye ye-RF iguqula amasiginali okufakwayo e-RF abe isignali ye-IF, futhi iguqule amasiginali e-analog ye-IF abe amasignali edijithali adingekayo ku-chip ye-NebulasIV. - NebulasIV SoC
I-NebulasIV iyisizukulwane esisha se-UNICORECOMM esinembayo esiphezulu se-GNSS SoC esinomklamo wamandla aphansi angu-22 nm, esekela wonke amaqoqo ezinkanyezi, amaza amaningi kanye neziteshi ezinkulu ezingu-1408. Ihlanganisa i-dual-core CPU, iphrosesa yephoyinti elintantayo elinesivinini esiphezulu kanye ne-RTK co-processor, engafeza ukunemba okuphezulu kokucubungula kwe-baseband kanye nokuma kwe-RTK ngokuzimela. - I-interface yangaphandle
Ukuxhumana kwangaphandle kwe-UM960 kufaka phakathi i-UART, I2 C , PPS, EVENT, RESET_N, njll.'
Isixhumi esibonakalayo esigciniwe, asisekelwe okwamanje.
Izingxenyekazi zekhompuyutha
2.1 Phina Incazelo
Ithebula 2-1 Incazelo Yephinikhodi
| Cha. | Phina | I/O | Incazelo |
| 1 | I-RSV | - | Igodliwe, kumele intante; ayikwazi ukuxhuma umhlabathi noma ukunikezwa kwamandla noma i-peripheral I/O |
| 2 | I-RSV | - | Igodliwe, kumele intante; ayikwazi ukuxhuma umhlabathi noma ukunikezwa kwamandla noma i-peripheral I/O |
| 3 | I-PPS | O | I-Pulse ngomzuzwana, enobubanzi be-pulse obulungisekayo kanye ne-polarity |
| 4 | EVENT | I | I-Event Mark, enefrikhwensi elungisekayo kanye ne-polarity |
| 5 | I-RSV | - | Umsebenzi owakhelwe ngaphakathi; kunconyiwe ukwengeza indawo yokuhlola imbobo kanye ne-10 kΩ yokudonsa phezulu; ayikwazi ukuxhuma umhlabathi noma ugesi noma i-peripheral I/O, kodwa ingantanta. |
| 6 | I-TXD2 | O | UART2 okukhiphayo |
| 7 | I-RXD2 | I | Okokufaka kwe-UART2 |
| 8 | SETHA KABUSHA_N | I | Ukusetha kabusha uhlelo; okusebenzayo Okuphansi. Isikhathi sokusebenza akufanele sibe ngaphansi kuka-5 ms. |
| 9 | VCC_RF1 | O | Ukunikezwa kwamandla kwangaphandle kwe-LNA |
| 10 | GND | - | Ground |
| 11 | ANT_IN | I | Okokufaka kwesignali ye-antenna ye-GNSS |
| 12 | GND | - | Ground |
| 13 | GND | - | Ground |
| 14 | RTK_STAT | O | Izinga eliphezulu: I-RTK Fix; Izinga eliphansi: I-RTK Akukho Ukulungisa |
| 15 | I-RXD3 | I | Okokufaka kwe-UART3 |
| 16 | I-TXD3 | O | UART3 okukhiphayo |
| 17 | I-RSV | - | Umsebenzi owakhelwe ngaphakathi; kunconyiwe ukwengeza indawo yokuhlola imbobo kanye ne-10 kΩ yokudonsa phezulu; ayikwazi ukuxhuma umhlabathi noma ugesi noma i-peripheral I/O, kodwa ingantanta. |
| 18 | I-SDA | I/O | Idatha ye-I 2C |
| 19 | I-SCL | I/O | I 2 C iwashi |
| 20 | I-TXD1 | O | UART1 okukhiphayo |
| 21 | I-RXD1 | I | Okokufaka kwe-UART1 |
| 22 | V_BCKP | I | Uma i-VCC eyinhloko kagesi inqanyulwa, i-V_BCKP inikeza amandla ku-RTC nerejista efanele. Isidingo sezinga: 2.0 V ~ 3.6 V, kanti ukusebenza kwamanje kungaphansi kuka-60 μA ku-25 °C. Uma ungawusebenzisi umsebenzi wokuqalisa okushisayo, xhuma i-V_BCKP ku-VCC. UNGAYIxhumeli phansi noma uyishiye intanta. |
| 23 | VCC | I | Ukunikezwa kwevoltage |
| 24 | GND | - | Ground |
2.2 Imininingwane kagesi
2.2.1 Izilinganiso Eziphelele Eziphelele
Ithebula 2-2 Izilinganiso Eziphelele Eziphelele
| Ipharamitha | Uphawu | Okuncane. | Ubukhulu. | Iyunithi |
| Ukunikezwa kwamandla (VCC) | VCC | -0.3 | 3.6 | V |
| Voltage Ukufaka | Vin | -0.3 | 3.6 | V |
| Okokufaka Kwesiginali ye-Antenna ye-GNSS | ANT_IN | -0.3 | 6 | V |
| Amandla Wokufaka we-RF we-Antenna | Amandla okokufaka we-ANT_IN | + 10 | dBm | |
| I-LNA Power Supply yangaphandle | VCC_RF | -0.3 | 3.6 | V |
| Okukhiphayo kwe-VCC_RF Yamanje | ICC_RF | 100 | mA | |
| Izinga Lokushisa Lesitoreji | Tstg | -55 | 95 | C |
2.2.2 Izimo zokusebenza
Ithebula 2-3 Izimo Zokusebenza
| Ipharamitha | Uphawu | Okuncane. | Thayipha. | Ubukhulu. | Iyunithi | Isimo |
| Ukunikezwa kwamandla (VCC) | VCC | 3 | 3.3 | 3.6 | V | |
| Ubukhulu be-Ripple Voltage | I-vrpp | 0 | 50 | mV | ||
| Ukusebenza Kwamanje2 | Iopr | 136 | 218 | mA | I-VCC = 3.3 V | |
| I-VCC_RF Output Voltage | VCC_RF | I-VCC-0.1 | V | |||
| Okukhiphayo kwe-VCC_RF Yamanje | ICC_RF | 50 | mA | |||
| Izinga Lokushisa Lokusebenza | I-Topr | -40 | 85 | °C | ||
| Ukusetshenziswa kwamandla | P | 450 | mW |
2.2.3 IO Threshold
Ithebula 2-4 IO Threshold
| Ipharamitha | Uphawu | Okuncane. | Thayipha. | Ubukhulu. | Iyunithi C | Isimo |
| Izinga Eliphansi Okokufaka Voltage |
Vin_low | 0 | 0.6 | V | ||
| Izinga eliphezulu Okokufaka Voltage |
Vin_high | I-VCC × 0.7 | I-VCC + 0.2 | V | ||
| Izinga Eliphansi Okukhipha Umqtage |
I-Vout_low | 0 | 0.45 | V | Iout = 2mA | |
| Izinga eliphezulu Okukhipha Umqtage |
Vuka_phezulu | VCC - 0.45 |
VCC | V | Iout = 2mA |
2.2.4 Isici se-Antenna
Ithebula 2-5 Isici se-Antenna
| Ipharamitha | Uphawu | Okuncane. | Thayipha. | Ubukhulu. | Iyunithi C | Isimo |
| Inzuzo Yokufaka Engcono Kakhulu | I-Gant | 18 | 30 | 36 | dB |
2 Njengoba umkhiqizo unama-capacitor ngaphakathi, i-inrush current iyenzeka ngesikhathi sokukhanyisa. Kufanele uhlole endaweni yangempela ukuze uhlole umphumela womthamo wokunikezwayotage ukwehla okubangelwa i-inrush current ohlelweni.
2.3 Ubukhulu
Ithebula 2-6 Ubukhulu
| Uphawu | Ubuncane.(mm) | Thayipha. (mm) | Ubukhulu. (mm) |
| A | 15.80 | 16.00 | 16.50 |
| B | 12.00 | 12.20 | 12.70 |
| C | 2.40 | 2.60 | 2.80 |
| D | 0.90 | 1.00 | 1.10 |
| E | 0.20 | 0.30 | 0.40 |
| F | 1.40 | 1.50 | 1.60 |
| G | 1.00 | 1.10 | 1.20 |
| H | 0.70 | 0.80 | 0.90 |
| J | 3.20 | 3.30 | 3.40 |
| N | 2.90 | 3.00 | 3.10 |
| P | 1.30 | 1.40 | 1.50 |
| R | 0.99 | 1.00 | 1.10 |
| X | 0.72 | 0.82 | 0.92 |
| φ | 0.99 | 1.00 | 1.10 |
I-Hardware Design
3.1 Idizayini Encane Enconyiwe
I-L1: I-68 nH RF inductor kuphakheji engu-0603 iyanconywa
I-C1: I-100 nF + 100 pF capacitor exhunywe ngokuhambisana iyanconywa
I-C2: I-100 pF capacitor iyanconywa
C3: N * 10 μF + 1 * 100 nF capacitor exhunywe ngokuhambisana kuyanconywa, futhi inductance isiyonke akufanele ibe ngaphansi kuka-30 μF
I-R1: 10 kΩ resistor iyanconywa
3.2 Idizayini yokuphakela kwe-antenna
I-UM980 ivele isekele ukuphakela uthi ukusuka ngaphandle kwemojula kunokusuka ngaphakathi. Kunconywa ukusebenzisa amadivaysi anamandla aphezulu futhi angakwazi ukumelana nevolthi ephezulutage. Ishubhu yokukhipha igesi, i-varistor, ishubhu ye-TVS namanye amadivaysi okuvikela amandla aphezulu angasetshenziswa futhi kumjikelezo wokuphakelwa kwamandla ukuze kuqhutshekwe nokuvikela imojula ekushayweni kombani nasekuqhumeni.
Uma isiphakeli se-antenna sinikezela nge-ANT_BIAS kanye ne-VCC yemojuli eyinhloko isebenzisa ujantshi wamandla ofanayo, i-ESD, i-surge kanye ne-overvoltagi-e evela othini izoba nomthelela ku-VCC, okungase kudale umonakalo kumojuli. Ngakho-ke, kuyanconywa ukuthi udizayine i-ANT_BIAS ujantshi wamandla ozimele ukuze unciphise amathuba okulimala kwemojuli.
Amanothi:
- I-L1: i-feed inductor, i-68 nH RF inductor kuphakheji engu-0603 iyanconywa
- I-C1: i-decoupling capacitor, inconywa ukuxhuma ama-capacitor amabili we-100 nF/100 pF ngokuhambisana
- I-C2: I-DC blocking capacitor, i-capacitor eyi-100 pF enconyiwe
- Akunconyiwe ukuthatha i-VCC_RF njenge-ANT_BIAS ukuze uphakele uthi (i-VCC_RF ayilungiselelwanga isiteleka sokunqanda umbani kanye nokulwa nokuhlinzwa ngenxa yosayizi ohlangene wemojuli).
- I-D1: I-ESD diode, khetha idivayisi yokuvikela ye-ESD esekela amasiginali aphezulu (ngaphezu kuka-2000 MHz)
- D2: I-TVS diode, khetha i-TVS diode ene-cl efaneleampukucaciswa ngokwesidingo sokudla voltage kanye nothi olumelana nomthamotage
3.3 Ukuvula nokucisha
VCC
- Izinga lokuqala le-VCC lapho amandla okukhanyisa kufanele abe ngaphansi kuka-0.4 V.
- I-VCC Ramp lapho amandla avuliwe kufanele abe monotonic, ngaphandle kwamathafa.
- IVoltagama-undershoot kanye nokukhala kufanele kube ngaphakathi kwe-5% VCC.
- I-VCC power on waveform: Isikhathi esisuka ku-10% sikhuphuka siye ku-90% kufanele sibe phakathi kuka-100 μs ~1 ms.
- Isikhawu sesikhathi sokuvula amandla: Isikhathi esiphakathi kokucisha ugesi (VCC <0.4 V) ukuya kumandla okukhanyisa olandelayo kufanele sibe sikhulu kuno-500 ms.
V_BCKP
- Ileveli yokuqala ye-V_BCKP lapho amandla okukhanyisa kufanele abe ngaphansi kuka-0.4 V.
- I-V_BCKP ramp lapho amandla avuliwe kufanele abe monotonic, ngaphandle kwamathafa.
- IVoltagama-undershoot kanye nokukhala kufanele kube phakathi kuka-5% V_BCKP.
- I-V_BCKP yefomu lokuvula amandla: Isikhathi esisuka ku-10% sikhuphuka siye ku-90% kufanele sibe phakathi kuka-100 μs ~1 ms.
- Isikhawu sesikhathi sokuvula amandla: Isikhathi esiphakathi kokucisha amandla (V_BCKP <0.4 V) ukuya emandleni okuvula okulandelayo kufanele sibe sikhulu kuno-500 ms.
3.4 Ukugawulwa phansi kanye nokuchithwa kokushisa
Amaphedi angu-55 kunxande kuMfanekiso 3-3 awokumisa phansi kanye nokukhipha ukushisa.
Kumklamo we-PCB, kufanele axhunywe endaweni enosayizi omkhulu ukuze kuqiniswe ukuchithwa kokushisa. 3.5 Idizayini Yephakheji Enconyiwe ye-PCB
3.5 Idizayini Yephakheji Enconyiwe ye-PCB
Bona isibalo esilandelayo sedizayini yephakheji enconyiwe ye-PCB.
Phawula:
- Ukuze kube lula ukuhlola, ama-soldering pads of the pin aklanywe isikhathi eside, edlula umngcele wemojula kakhulu. Okwesiboneloample:
- Amaphedi achazwe njengemininingwane C angama-1.50 mm ubude kunomngcele wemojuli.
- Iphedi eshiwo njengemininingwane A inde ngo-0.49 mm kunomngcele wemojuli. Ifushane njengoba iyiphinikhodi ye-RF, ngakho-ke sithemba ukuthi umkhondo ongaphezulu kufushane ngangokunokwenzeka ukuze unciphise umthelela wokuphazamiseka.
- Ukuze kuncishiswe ngempumelelo ukuthi kungenzeka yini ibhuloho le-solder ngesikhathi sokuthengisa, amaphinikhodi aklanyelwe abe mncane kunezikhonkwane. Kodwa-ke, iphedi eshiwo njengemininingwane A inobubanzi obufanayo nephinikhodi, njengoba sithemba ukuthi ukumelana kuyaqhubeka ngokusemandleni ephinikhodi ye-RF.
Isidingo Sokukhiqiza
Ijika lokushisa elinconyiwe le-solder limi kanje:
Ukwenyuka Kwezinga Lokushisatage
- Umthambeka okhuphukayo: Max. 3 °C/s
- Izinga lokushisa elikhulayo: 50 °C kuya ku-150 °C
Ukushisa kuqala i-Stage
- Isikhathi sokushisa: 60 s kuya ku-120 s
- Ibanga lokushisa elishisa ngaphambili: 150 °C kuya ku-180 °C
I-Reflux Stage
- Ngaphezulu kwezinga lokushisa elincibilikayo (217 °C) isikhathi: 40 s kuya ku-60 s
- Izinga lokushisa eliphakeme lokunamathisela: alikho ngaphezulu kuka-245 °C
Ukupholisa uStage
- Umthambeka wokupholisa: Max. 4 °C / s
- Ukuze uvimbele ukuwa ngesikhathi se-soldering ye-module, ungayithengisi ngemuva kwebhodi ngesikhathi sokuklama, futhi akunconywa ukuthi uhambe ngomjikelezo we-soldering kabili.
- Ukusethwa kwezinga lokushisa lokunamathisela kuncike ezintweni eziningi zefekthri, njengohlobo lwebhodi, uhlobo lokunamathisela i-solder, ukujiya kokunamathisela kwe-solder njll. Sicela futhi ubhekisele kumazinga e-IPC afanelekile kanye nezinkomba zokunamathisela kwe-solder.
- Njengoba izinga lokushisa le-lead soldering liphansi kakhulu, uma usebenzisa le ndlela, sicela unike kuqala ezinye izingxenye ebhodini.
- Ukuvulwa kwe-stencil kudinga ukuhlangabezana nesidingo sakho sokuklama futhi kuhambisane nezindinganiso zokuhlola. Ubukhulu be-stencil bunconywa ukuthi bube ngu-0.15mm.
Ukupakisha
5.1 Incazelo Yelebula
5.2 Ukupakishwa Komkhiqizo
Imojula ye-UM980 isebenzisa itheyiphu yenkampani yenethiwekhi kanye ne-reel (efanele amadivayisi ajwayelekile wokukhweza phezulu), ehlanganiswe nge-vacuum-sealed aluminium foil antistatic, ene-desiccant ngaphakathi ukuvimbela umswakama. Uma usebenzisa inqubo ye-reflow soldering kumamojula e-solder, ukuqasha kuthobelana ngokuqinile nezinga le-IPC ukuze ulawule izinga lokushisa nomswakama kumamojula. Njengoba izinto zokupakisha ezifana ne-carrier tape zingakwazi ukumelana nezinga lokushisa lama-55 degrees Celsius, amamojula azosuswa ephaketheni ngesikhathi sokubhaka.
Qaphela:
- Ukubekezelelana okuhlanganisiwe kwezimbobo eziseceleni eziyi-10 akufanele kudlule ± 0.2 mm.
- Indaba yetheyiphu: I-PS ye-antistatic emnyama (i-impedance ebusweni 10 5 -10 11 ) (ivolumu esezingeni eliphezulutage <100 V), ukujiya: 0.35 mm.
- Ubude obuphelele bephakheji ye-reel engu-13-intshi: 6.816 m (Ubude bengxenye yokuqala yamaphakethe angenalutho: 0.408 m, ubude bamaphakethe aqukethe amamojula: 6 m, ubude bengxenye yokugcina yamaphakethe angenalutho: 0.408 m).
- Isamba senani lamaphakethe kuphakheji ye-reel engu-13-intshi: 284 (Inani lengxenye yokuqala yamaphakethe angenalutho: 17; inani langempela lamamojula emaphaketheni: 250; inombolo yengxenye yokugcina yamaphakethe angenalutho: 17).
- Yonke imiklamo yobukhulu ihambisana ne-EIA-481-C-2003.
- Izinga eliphezulu lokugoba le-tape yenethiwekhi ngaphakathi kobude obungama-250 mm akufanele lidlule i-1 mm (bheka isithombe esingezansi).
Ithebula 5-1 Incazelo Yephakheji
| Into | Incazelo |
| Inombolo Yemojuli | 500 izingcezu / esondweni |
| Usayizi we-Reel | Ithreyi: 13″ Ububanzi bangaphandle: 330 mm Ububanzi bangaphakathi: 100 mm Ububanzi: 24 mm Ubukhulu: 2.0 mm |
| I-Carrier Tape | Isikhala phakathi (ibanga eliphakathi nendawo): 24 mm |
I-UM960 ikalwe ezingeni lesi-3 le-MSL. Bheka kumazinga afanelekile e-IPC/JEDEC J-STD-033 ngephakheji kanye nezidingo zokusebenza. Ungakwazi ukufinyelela ku- webindawo www.jedec.org ukuze uthole ulwazi olwengeziwe.
Isikhathi seshelufu semojula ye-UM960 epakishwe ezikhwameni ze-aluminiyamu evalwe nge-vacuum evalwe nge-antistatic unyaka owodwa.
Inkampani Unicore Communications, Inc.
F3, No.7, Fengxian East Road, Haidian, Beijing, PRChina,
100094
www.unicorecomm.com
Ucingo: 86-10-69939800
Ifeksi: 86-10-69939888
info@unicorecomm.com
www.unicorecomm.com
Amadokhumenti / Izinsiza
 |
i-unicore UM960 High Precision RTK Positioning Module [pdf] Imaniwali yosebenzisayo UM960 High Precision RTK Positioning Module, UM960, High Precision RTK Positioning Module, Precision RTK Positioning Module, RTK Positioning Module, Positioning Module, Module |
