SPECTRA SP42RF Precision Atmel RF Module

Lisebelisoa

Mojule oa RF o sebetsa le Atmel RF transceiver AT86RF233 le 2.4GHz Front End SE2431L-R ho tloha Skyworks. Lethathamo la module PCB le nang le transceiver ea RF le marang-rang a antenna a hokahaneng a koahetsoe ka thebe ea tšepe. Lenaka ke Antenna ea chip.

Lintlha tsa Tekheniki feela bakeng sa Transceiver ea Atmel AT86RF233 ka boeona, ha e sebetse bakeng sa module e felletseng.
AT86RF233 ke transceiver ea module ea Atmel RF. Lethathamo le latelang le na le lintlha tsa tekheniki tsa Atmel AT86RF233 hammoho le Front End.

• Maqhubu a sebetsang ke 2405MHz ho isa ho 2480MHz
• O-QPSK mofetoleli
• Bophahamo ba kanale 3.2MHz
• Matla a phahameng a 24dBm
• Thempereichara ea ho sebetsa -20°C ho ea ho +50°C
• Tshebetso voltage fapaneng 2V ho 3.8V
• Sekhahla sa data sa 250kbps
• 4 terata SPI
• IEEE802.15.4 e lumellanang le DSSDSseband

Atmel RF AMP Tlhaloso ea Khokahano ea Mojule
Tafoleng e latelang, likhokahano tsa mojule oa Atmel RF li thathamisitsoe le ho hlalosoa.

Lebitso	Tlhaloso
VDD	Phepelo ea matla (1.8…. 3.8V) pin
MISO	Sistimi e kholo ea SPI kamohelo / module / transceiver SPI pin ea phetiso
SEBELE	Oache ea SPI (e hlahisoang ke master system, max. 5MHz)
RESET_n	Sistimi e nchafalitsoeng (e fetotsoe)
IRAQ	Khaotsa tlhahiso ea lets'oao la kopo
SLP_TR	E laola boroko, boroko bo tebileng, ho fetisoa ho qala
CPS	Mojule oa Front End khetha bakeng sa RF_TX_RX
nkong	Mojule/transceiver chip khetha phini (inverted)
BONTSI	Master system SPI transmission/module/transceiver SPI pin ea kamohelo
GND	Pin ea fatše

SPI Interface

Puisano le transceiver ea module ea Atmel RF e fumaneha ka 4-wire SPI (CS_N, CLK, SPI_IN, SPI_OUT). Setšoantšo se latelang se bontša litlhoko tsa nako ea SPI.

Tafole e latelang e hlalosa mekhahlelo ea setšoantšo se ka holimo.

Paramethara	Tlhaloso	Min	Tlanya	Max	Yuniti
t1	/SEL e hloleha ho MISO e sebetsa			180	ns
t2	SCLK e oelang ho MISO kantle	25			ns
t3	MOSI nako ea ho seta	10			ns
t4	MOSI tšoara nako	10			ns

Ts'ebetso ea RF
Karolo ena e hlalosa ts'ebetso ea RF e ka bang teng ea AT86RF233 a, 'me moo, ka module ea Atmel RF.
Sesebelisoa sena se lumellana le karolo ea 15 ea Melao ea FCC. Ts'ebetso e ipapisitse le maemo a mabeli a latelang:

1. Sesebelisoa sena se ka 'na sa se ke sa baka tšitiso e kotsi, le
2. sesebelisoa sena se tlameha ho amohela tšitiso efe kapa efe e amohetsoeng, ho kenyeletsoa tšitiso e ka bakang ts'ebetso e sa batleheng.

Liphetoho kapa litokiso tse sa amoheloang ka ho hlaka ke mokha o ikarabellang bakeng sa ho ikamahanya le maemo li thibela matla a mosebelisi ho sebelisa sesebelisoa sena.

Lintlha

• Maqhubu a sebetsang ke 2400MHz ho isa ho 24835MHz
• O-QPSK mofetoleli
• Band ea Channel e nang le 3.2MHz
• Matla a phahameng a lekantsoeng: 4.5 dBm EIRP
• Thempereichara ea ho sebetsa -20°C ho ea ho +50°C
• Tshebetso voltage fapaneng 2.8V ho 3.6V DC
• Sekhahla sa data sa 250kbps
• 4 terata SPI
• IEEE802.15.4 e lumellanang-DSS baseband

IEEE802.15.4 Foromo ea Frame
Puisano e thehiloe holim'a lera la 'mele la IEEE802.15.4, empa AT86RF233 e ka lokisoa bakeng sa ho sebetsana le lera la MAC la IEEE802.15.4. Setšoantšo se latelang se bontša sebopeho sa foreimi ea IEEE802.15.4, e tšehetsoeng ke transceiver ea AT86RF233.

RF Configuration Options
Lethathamo le latelang le na le litlhophiso tse ka etsoang tse ka hlophisoang ke litaelo tsa SPI ho transceiver ea AT86RF233 mojuleng oa Atmel RF.

• Matla a phahameng a lekantsoeng: 4.5 dBm EIRP
• Matla a tsoang a ka beoa feela ke firmware e nang le litaelo tsa SPI, kahoo mosebelisi oa ho qetela ha a khone ho fetola matla a tlhahiso.
• Khetho ea RF Channel (2400 … 24835MHz)

Ho latela maemo a IEEE802.15.4 f, ho ka khethoa likanale tse latelang:

• 2400 … 24835MHz ka mehato ea 5Mhz
• (k=1: 2405MHz, k=2: 2410MHz, k=3: 2415Mhz, … , k=15: 2475MHz, k=16: 2480MHz)
• Tlhahlobo e hlakileng ea mocha e tšehetsoa e lumellang hore ho be le ts'ebetsong e bonolo ea ho mamela pele ho puo.

Mekhoa ea ts'ebetso ea RF
Mojule oa RF o tšehetsa mekhoa e fapaneng ea ts'ebetso. Ka kakaretso, ho na le mekhoa e fapaneng ea matla e tšehetsoeng, e fokotsang module ts'ebetsong e ka khonehang empa e lumella ntlafatso ea tšebeliso ea matla.
Setšoantšo se latelang se bontša mekhoa e fapaneng ea matla, phetoho lipakeng tsa mekhoa ea matla, le tšebeliso ea matla ea mekhoa.

Mekhoa ea Ts'ebetso e sebetsang
Nakong e sebetsang, transceiver ea module ea RF e ka ba sebakeng se seng sa tse latelang.

• Qetello
• TX: Phetiso (Foreimi e latelang moleng oa phetisetso e romelloa, ebe Idle kapa Reception mode (e ipapisitse le tlhophiso ea AT86RF233). Boemo bona bo bolokoa nako e telele feela, kaha AT86RF233 e fetisetsa foreimi.
• RX: Kamohelo

Linaha li ka fetoloa ka litaelo tsa SPI. Tafole e nolofalitsoeng ea mmuso e nang le linako tsa phetoho e bonts'a liphetoho tse ka bang teng tsa ts'ebetso.

Naha	Taelo	Boemo	E 'ngoe Naha	Phetoho Nako
Qetello		ka botjha != 0	RX	192µs
RX		e bulela == 0	Qetello
RX	STXON		TX	192µs
RX	SROFF	e khahlisang == 0	Qetello
TX		foreimi e rometsoe && rxenable != 0	RX	190µs
TX		foreimi e rometsoe && rxenalbe == 0	Qetello
TX	SROFF	e khahlisang == 0	Qetello

Litokomane / Lisebelisoa

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Litšupiso

• Bukana ea Mosebelisi