Fa'aliliuina Vitio Uaealesi RF Fa'aigoa Fa'afuainumera Fa'alalo Fa'aliliu COFDM Fa'aliliuina taimi 2.4G i le 600Mhz maualalo BDC

Faafuainumera faaliliu ifo

Fa'aliliuina Vitio uaealesi RF Fa'aigoa Fa'atekonolosi Fa'alalo Fa'aliliu COFDM Fa'aliliuina taimi 2.4G i le 600Mhz maualalo

Manatu faatauina atu

1. Sao alaleo mai 24000 e 600MHz (1800Mhz Lower)
2. bandwidth maualuga
3. leo vaega Low
4. mautu taimi-maualuga

Specification

RF faasolo Faafia: 2400 Mhz
AFAI E Faafia faasolo: 600 Mhz
toe foi Maliu:-12 dB
taimi saʻo: ± 10 ppm
Image Teena: 60 dBc
Flatness: ± 0.5 dB (8MHz bandwidth)
liua Oa: 25 dB
vaega Pisa (dBc / Hz)
dBc / Hz @ 1KHz ≤-80
dBc / Hz @ 10KHz ≤-90
dBc / Hz @ 100KHz ≤-100
tuuina atu volitiga: 10~ 15V
mana i le taimi nei: 100 MA
Gaoioiga e faasolo vevela: +25 ℃

tāulaga

RF I: SMA-50K
AFAI FAFO: SMA-50K
Mana + 12V: lāʻau
GND: lug Soldering

tusi

1. E le mana'omia e le tagata fa'aliliu le fa'aopoopoina o se fa'amalo leo maualalo i le pito i tua.
2. Tofotofoga moni: tofotofoga matasele-tapunia i lalo o le taimi o 2.4GHz / bandwidth 4MHz, e mafai ona oo atu i le tulaga maaleale mauaina -105dBm.
3. taimi sao lagolagoina 1 ~ 3GHz. (E mafai ona matou fesoasoani e fa'avasega).
4. taimi Galuega lagolago 300 ~ 700MHz. (E mafai ona tatou lagolagoina customize).

E uiga i le vitio o loʻo i luga:

O a matou oloa e sili ona taʻutaʻua o fesoʻotaʻiga vitiō uaealesi ma tagata e taliaina. Ae peitai, o nisi tagata fa'atau e mana'omia le suiga ole fa'asalalauga fa'asalalau ina ia fa'amalieina mana'oga fa'alotoifale, i le tulaga lea e sau ai le poloka liliu mai luga-lalo numera numera. Na talosaga mai se tasi tagata faatau matou te fa'avasegaina le RF frequency down converter mo lana 2.4G wireless video transmitter. O lea la, o le fa'aulu ole taimi ole 2.4GHz, o le fa'alava o le gaosiga o le 600MHz, and the lowdown frequency is 1800MHz. Na matou faia le faʻataʻitaʻiga e tusa ai ma ana faʻamatalaga. So I showed him a simple video that showed the 2.4G transmitter and 600Mhz receiver working correctly. Afai e iai sau mana'oga tutusa, e pei ole 1-3G fa'aulu ole taimi ma le 300-700Mhz gaioiga, fa'amolemole fa'afeso'ota'i mai mo se tali fa'apitoa.

1. O le a le RF frequency numera poloka-faaliliu liliu (BDC)?

O se fa'aliliuga fa'alalo poloka RF (BDC) mo transmitters vitiō uaealesi o se masini e mafai ona faaliliuina se laina maualuga tele i se laina maualalo maualalo.

E masani ona fa'aoga i luga ole itu ole transmitter vitiō uaealesi. Faataitaiga,

• Mai le 5.8G i le 2.4G lalo liliu
• Mai le 2.4G i le 1.2G lalo liliu
• Mai le 1.2G i le 600Mhz lalo liliu

E mafua ona o le mea moni o alaleo feaveaʻi uaealesi i le tele o atunuu poʻo itulagi e faʻatapulaʻaina e tulafono faʻalotoifale ma tulafono faatonutonu..

E le fa'atagaina ona fa'aoga i se fa'alava fa'apitoa.

Ia suia le fa'agaioia o le fa'agaoioiga o le transmitter ma le receiver, e manaʻomia le liliu i lalo poʻo le liliu i luga. Ia mautinoa o le tele o felauaiga e ogatasi ma tulafono a le lotoifale ma tulafono faatonutonu.

O lo'o iai fo'i le tulaga e fa'amautu ai le fa'apolofesa e maua ai taimi, faataitaiga, i le va o le 300-800Mhz.

In order for the transmitter's frequency to be paired, te tatau ona fa'aitiitia le tele o le transmitter 1.2G.

O nei mea uma e mana'omia ai le fa'aogaina o se fa'aliliuga fa'asolosolo mo le fa'asalalauina o vitio uaealesi.

2. o le a manaomia loʻu tele taimi sao e avea 2.0Ghz e 2.7Ghz, mana'omia se downconverter i 200 Mhz i le 900Mhz. O le a le naunauga lava ona maua liua 30db le 25db. Pe lenei faigofie mo oe e fai?

ioe, tali mai le matou inisinia faapolofesa, e mafai ona tatou faia. Ma, a'o le'i tu'uina atu, o le a matou faaali atu ia te oe le vitio suega.

3. E mafai ona e faia se suiga i lalo ile LO1G? matou te manaʻomia se faʻamatalaga 1300-1400 Mhz taimi ma gaioiga 300-400 Mhz.

ioe, ua fa'amaonia mai e le matou inisinia fa'apolofesa e mafai ona matou toe fa'atulagaina ma suia nisi o vaega autu e fai ai lena mea. Mautinoa, a'o le'i tu'uina atu, o le a matou faaali atu ia te oe le vitio suega.

4. E iai sau pe fuafuaina mo talosaga MMDS? Mai 3400 -3600MHZ, O le S-Band ua liua i le UHF laina 400 i 600 MHz, LO oscillator e 3000MHZ.

Faafetai mo lau su'esu'ega, O le a ou siaki ma le matou inisinia.

5. What is RF output in dB? Can you make a down converter from 5.8 GHz to 3.1 GHz? Can you make a UP converter? Mai 1,25 GHz to 3.4 GHz?

Faafetai mo lau su'esu'ega. We can customize for you.

Please tell us the specification details of your transmitter and receiver modules.

6. Would you customize the frequency up-converter block and frequency down-converter block?

fesili: We are interested in n.1 downconverter from 950-1500 Mhz to 350-850 Mhz and n.1 upconverter from 350-850 Mhz to 950-1500 Mhz. Oscillator fa'apitonu'u 1800 Mhz.

ioe, Here is our specification for your references.

Frequency Down Converer Block specification sheet

mea	Specification
input frequency	950 MHz ～1550 MHz
output frequency	350 MHz ～850 MHz
Local frequency	1800 MHz
aga	500MHz
Ata pisa	≤1.5dB
maua	25 dB
Carrier leakage	≤-20dBm
Belt unevenness(8MHz)	≤1.5dB
IIP3:	≥15dBm
maximum input level	-10dBm
VSWR	≤1.5
operation temperature	-10～+60℃
voltage current	12V/240mA
RF Fa'amatalaga	SMA-50KFD
fua	108*48*15mm
Power supply mode	Socket power supply

Frequency Up Converer Block specification sheet

mea	Specification
input frequency	350 MHz ～850 MHz
output frequency	950 MHz ～1550 MHz
Local frequency	1800 MHz
aga	500MHz
Ata pisa	≤1.5dB
maua	25 dB
Carrier leakage	≤-20dBm
Belt unevenness(8MHz)	≤1.5dB
IIP3:	≥15dBm
maximum input level	-10dBm
VSWR	≤1.5
operation temperature	-10～+60℃
voltage current	12V/240mA
RF Fa'amatalaga	SMA-50KFD
fua	108*48*15mm
Power supply mode	Socket power supply

fesili: If a signal of -25 dbm enter, what level has the coverterd output?

tali: 0 dBm

7. I’m searching for a specific down converter, e faʻaaogaina ma a tatou lava sootaga OFDM RF.

O loʻo ou suʻeina se faʻaliliuga faʻapitoa, e faʻaaogaina ma a tatou lava sootaga OFDM RF:

50ohms RF fa'aoga: 1.435 i 1.525 GHz

75 ohms IF output: so'o se fa'aupu fa'ase'e, i le va o le 100Mhz ma le 900MHz

E mana'omia LO taimi masani: 1846MHz

maualalo maua: e tusa ma le 28dB

Maualuga maualuga: e tusa ma le 43dB

DC fa'aola mai le IF uafu fa'atino, 12-24vDC va'aiga

ioe, we can customize it for you.

O le a DDC

I le faagasologa faailo faafuainumera, a faafuainumera lalo-faaliliu (DDC) liliu a digitized, fa'ailo fa'atapula'a fa'aili i se fa'ailoga maualalo maualalo i se fua fa'ata'ita'i maualalo ina ia fa'afaigofie ai laasaga o le leitio mulimuli ane.. O le faagasologa o le faasaoina o faamatalaga uma i le faailo uluai itiiti na leiloa e lapotopoto mea sese i le faiga faamatematika. O le faailoga sao ma galuega faatino e mafai ona avea faataitaiga moni po o lavelave. E masani ona liliu le DDC mai le taimi leitio mata po o taimi le tumau i lalo i a faailoga baseband lavelave.

atiga

A e aofia DDC o subcomponents tolu: a synthesizer faafuainumera tuusao (DDS), a faamama maualalo mavae (LPF), and a down sampler (lea e mafai ona tuufaatasia i le faamama maualalo mavae). O le DDS faatupuina a sinusoid lavelave i le taimi vailauga (AFAI). Faateleina o le taimi e le tumau ma le faailoga sao faatupuina ata e totonugalemu i le taimi aofaiga ma eseesega (lea e soso'o mai le fa'agasologa o suiga o le Fourier transform). The low-pass filters pass the difference (i.e.. baseband) taimi ae teena le faatusa taimi aofaiga, iʻu ai i se faamatalaga baseband faigata o le faailo uluai. Faʻapea o se filifiliga faʻapitoa o le IF ma le LPF bandwidth, o mathematically tutusa le faailo baseband lavelave i le faailo uluai. I lona fou, it can readily be down-sampled and is more convenient to many DSP algorithms. So o se talafeagai faamama maualalo mavae e mafai ona faaaogaina e aofia ai le perosi, IIR, ma filiga CIC. Ole filifiliga sili ona taatele ole fa'amama FIR mo le maualalo ole aofa'i ole fa'ai'uga (itiiti ifo i le sefulu) or a CIC filter followed by an FIR filter for larger down-sampling ratios.

Fesuiaiga i le DDC

Ole tele o fesuiaiga ile DDC e fesoasoani, aofia ai le tele o le sao o se faailo manatu faaalia i le DDS. E aofia ai:

1. Decision-directed carrier recovery phase-locked loops in which the I and Q are compared to the nearest ideal constellation point of a PSK signal, ma le faailo sese e mafua ua filtered ma fafagaina i tua i le DDS
2. A matasele i Costas ua faateleina ma mavae maualalo filtered le ou ma Q e pei o se vaega o se matasele le toe faaleleia e feaveai BPSK / QPSK

faatinoga
ua sili ona faatinoina masani DDCs i manatu o tagata atamamai i arrays faitotoa fanua-programmable po o le talosaga-patino matagaluega tuufaatasia. E ui e mafai foi implementations polokalama, gaoioiga i le DDS, fa'atele, and input stages of the low-pass filters all run at the sampling rate of the input data. O lenei faamatalaga e masani ona sii saʻo mai analog e converters faafuainumera (ADCs) tofo i le sefulu po o le faitau selau o MHz. CORDIC is an alternative to the use of multipliers in the implementation of digital down converters.

Here is a client’s customized project, 1300~ 1400 Mhz fa'aoga i lalo liliu i le 300-400Mhz.

Fa'aliliuga ata fa'aliliu fa'aliliu Saina Shenzhen fa'atau， Fa'asologa masani

igoa: Fa'aliliuina ata
fa'ata'ita'iga: LWDC-248258I
Numera: 1805001
RF +12V AFAI
igoa: RF Pa'u Fa'aliliu
faʻataʻitaʻiga: LWDC-3000I
faʻataʻitaʻiga: LWDC-1400
Fa'aulu i totonu 2G~2.7G(2000~2700Mhz)
Maulalo: 1800Mhz
Fa'atelega o galuega: 200Mhz-700Mhz
SN2405002

Customize Frequency Specification Sheet Download

OF 1750Mhz Down