FASAHA LINEAR LTC6909 3 Zuwa 8 Multiphase Oscillator tare da SSFM
BAYANI
Da'irar nunin 1446 tana fasalta LTC6909 Multi-ple fitarwa oscillator tare da daidaita yanayin mitar bakan (SSFM). LTC®6909 mai sauƙi ne don amfani da madaidaicin oscillator wanda zai iya samar da abubuwan da aka daidaita tsakanin 1-, 2-, 3-, 4-, 5-, 6-, 7- ko 8-phase. Ana iya kunna LTC6909 yada bakan mitar daidaitawa (SSFM), don haɓaka aikin dacewa na lantarki (EMC). Fitowa daban-daban guda takwas suna samar da layin dogo guda takwas zuwa dogo, 50% siginonin agogon zagayowar aiki. Yin amfani da bayanan dabaru guda uku, ana saita abubuwan da aka fitar don rabuwa-lokaci, kama daga 45 ° zuwa 120° (hanyoyi uku zuwa takwas). Hakanan za'a iya riƙe abubuwan fitar da agogo baya ƙasa ko kuma saita su don Hi-Z. Resistor guda ɗaya (RSET) haɗe tare da tsarin tsari, yana saita mitar fitarwa, dangane da dabara mai zuwa:
fOUT = (20MHz x 10k)/(RSET x PH)
inda PH = 3, 4, 5, 6, 7 ko 8
kewayon fOUT shine 12.5kHz zuwa 6.67MHz.
Abubuwan shigar da dabaru na PH0, PH1 da PH2 sun ayyana yanayin aiki da yawa na LTC6909 da sarrafa abubuwan da aka fitar kamar haka:
PH2 PH1 PH0 MODE
0 0 0 Duk abubuwan da ake samarwa suna iyo (Hi-Z)
0 0 1 Duk abubuwan da aka fitar ana yin su kaɗan
0 1 0 3-Yanayin mataki (PH = 3)
0 1 1 4-Yanayin mataki (PH = 4)
1 0 0 5-Yanayin mataki (PH = 5)
1 0 1 6-Yanayin mataki (PH = 6)
1 1 0 7-Yanayin mataki (PH = 7)
1 1 1 8-Yanayin mataki (PH = 8)
A DC1446 ya ƙunshi wani LTC6909 da gwajin tashoshi na takwas abubuwan. Ana ba da masu tsalle kan jirgin don saita abubuwan shigar da lokaci na LTC6909 (PH0, PH1 da PH2) da tsarin SSFM. An riga an ɗora nauyin saitin mitar jirgin akan resis-tor (RSET) tare da 100k surface mount re-stor (Bugu da ƙari, an tanadar da ma'auni guda biyu don amfani da resistor RSET mai jagora).
Zane files don wannan allon kewayawa suna samuwa.
Kira masana'anta LTC. LTC, LT alamun kasuwanci ne masu rijista na Linear Technology Corporation.
TSARIN FARA GAGGAWA
Da'irar nunin 1446 yana da sauƙin saitawa da gwadawa. Koma zuwa Hoto 1 don saitin gwajin sauri kuma bi hanyar da ke ƙasa:
- Sanya masu tsalle a cikin matsayi masu zuwa:
JP3 (PH0) zuwa V+, JP4 (PH1) zuwa V+, JP1 (PH2) zuwa V+ da JP1 (MOD) zuwa SSFM KASHE. - 2. Saita wutar lantarki zuwa 5V.
- Kunna wutar lantarki.
- Tare da bincike na 10x da aka haɗa zuwa OUT1 oscilloscope ya kamata ya nuna 5V, 250kHz, squarewave (± 4.5%).
SAURAN FARA SAITA 
NOTE: Abubuwan 6909 (OUT1-OUT8) na iya fitar da lodin 1k da 50pF. Idan an yi amfani da na'urar nazarin bakan don auna bandwidth bakan da ake yadawa sannan yi amfani da babban bincike na impedance don saka idanu abubuwan da aka fitar (yawanci maƙasudin shigar da mai bakan bakan shine 50 ohms).
DEMO CIRCUIT 1446 JAGORAN GASAR FARWA - LTC6909 3 ZUWA 8 FITAR DA MULTIPHASE OSCILLATOR TAREDA SSFM 
DC1446 BAYANI
Abun Tunani Qty Bayanin Maƙerin Maƙera / Sashe #
1 1 C1 CAP., X7R, 10uF, 10V, 20% 1206 AVX, 1206ZC106MAT2A
2 2 C5, C2 CAP., X7R, 0.1uF, 16V, 10% 0402 TDK, C1005X7R1C104K
3 2 C3, C6 CAP., X5R, 1uF, 6.3V, 10% 0402 TDK, C1005X5R0J105K
4 1 C4 CAP., C0G, 1000pF, 25V, 5% 0402 TDK, C1005C0G1E102J
5 2 E1,E2 JACK, BANANA KEYSTONE, 575-4
6 10 E3-E12 GWAJI, TURRET, .094 ″ pbf MILL-MAX, 2501-2-00-80-00-00-07-0
7 3 JP1,JP3,JP4 3 PIN 0.079 SAI ROW SAMTEC, TMM103-02-LS
8 1 JP2 2X4, 0.079 RUWAN RUWA BIYU SAMTEC, TMM104-02-LD
9 4 xJP1-xJP4 SHUNT, .079 ″ CENTER SAMTEC, 2SN-BK-G
10 0 RSET (buɗe) Res., 0805
11 2 E13, E14 Fin, 0.057 rami Mill-Max, 8427-0-15-15-30-84-04-0
12 1 U1 IC., LTC6909CMS, MSOP-16 Linear Tech., LTC6909CMS
13 4 (TSAYA) KASHE, NYLON 0.375 ″ KEYSTONE, 8832(SNAP ON)
Takardu / Albarkatu
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FASAHA LINEAR LTC6909 3 Zuwa 8 Multiphase Oscillator tare da SSFM [pdf] Jagorar mai amfani LTC6909 3 Zuwa 8 Fitar Multiphase Oscillator tare da SSFM, LTC6909, 3 Zuwa 8 Oscillator Multiphase Oscillator tare da SSFM |
