ʻO ka hoʻoili wikiō ʻole RF Frequency Digital Down Converter COFDM Transfer frequency 2.4G i 600Mhz haʻahaʻa BDC

Digital Down mīkini hoʻololi

ʻO ka hoʻoili wikiō uila RF Frequency Digital Down Converter COFDM Hoʻololi pinepine 2.4G i 600Mhz haʻahaʻa

kuai puan

1. Hoʻokomo o nä alapine mai 24000 i ka 600MHz (Lower 1800Mhz)
2. High bandwidth
3. Low pae halulu
4. High-alapine (frequency) kumupaʻa

hoakaka

RF Frequency Laulā: 2400 MHz
Ina Frequency Laulā: 600 MHz
E hoʻi Loss:-12 DB
alapine (frequency) pololei: ± 10 ppm
Image Rejection: 60 dBc
Flatness: ± 0.5 DB (8MHz bandwidth)
huli ana i waiwai ai: 25 DB
pae Noise (dBc / Hz)
dBc / Hz @ 1KHz ≤-80
dBc / Hz @ 10KHz ≤-90
dBc / Hz @ 100KHz ≤-100
lako hou anakahi uila: 10~ 15V
Power o kēia: 100 Ma
Pae'ōnaehana Mahana Laulā: +25 ℃

Port

RF IN: SMA-50K
ina OUT: SMA-50K
Power + 12V: lāʻau
GND: Soldering lug

Note

1. ʻAʻole pono ka mea hoʻololi e hoʻohui i kahi mea hoʻonui haʻahaʻa haʻahaʻa ma ka hope hope.
2. maoli hoʻokolohua: paʻa-loop oʻu ho'āʻo ma lalo o ke alapine (frequency) o ke 2.4GHz / bandwidth 4MHz, ka loaa ana pā lonoaʻili hiki a hiki i -105dBm.
3. Hoʻokomo o alapine (frequency) Kākoʻo 1 ~ 3GHz. (Hiki iā mākou ke kōkua i ka hoʻopilikino).
4. Output frequency supports 300~700MHz. (Mākou ke kokua i hoʻopilikino ').

E pili ana i ka wikiō ma luna:

ʻO kā mākou huahana kaulana loa nā mea hoʻouna wikiō uila a me nā mea hoʻokipa. Eia naʻe, koi kekahi mau mea kūʻai aku i ka hoʻololi ʻana i ke alapine o ka hoʻouna ʻana e hoʻokō i nā koi kānāwai kūloko, ma ia hihia, hiki mai ke alapine kikohoʻe up-down converter block. Ua noi kekahi mea kūʻai e hana mākou i ka RF frequency down converter no kāna mea hoʻouna wikiō uila 2.4G. So the input frequency is 2.4GHz, the output frequency is 600MHz, and the lowdown frequency is 1800MHz. We created the sample in accordance with his specifications. So I showed him a simple video that showed the 2.4G transmitter and 600Mhz receiver working correctly. If you have a similar requirement, such as 1-3G frequency input and 300-700Mhz output, please contact us for a custom solution.

1. What is an RF frequency digital block-down converter (BDC)?

A RF frequency block downconverter (BDC) no ka mea, he mea hiki ke hoʻololi i ke alapine kiʻekiʻe i kahi alapine haʻahaʻa.

Hoʻohana maʻamau ma ka ʻaoʻao mea hoʻolele wikiō uila. ʻo kahi laʻana,

• Mai ka 5.8G a i ka 2.4G ka mea hoʻololi
• Mai ka 2.4G a hiki i ka 1.2G ka mea hoʻololi
• Mai ka 1.2G a hiki i ka 600Mhz iho hoʻololi

ʻO kēia ma muli o ka hoʻopaʻa ʻia ʻana o nā alapine uila i nā ʻāina a i ʻole nā ​​ʻāpana e nā kānāwai kūloko a me nā lula..

ʻAʻole ʻae ʻia ka hoʻohana ʻana ma kahi ākea kikoʻī.

E hoʻololi i ka alapine hana o ka transmitter a me ka mea hoʻokipa, down-conversion or up-conversion is required. E hōʻoia i ke alapine o ka hoʻouna ʻana e like me nā kānāwai a me nā lula kūloko.

Aia kekahi hihia kahi i hoʻopaʻa ʻia ai ka ʻoihana loaʻa pinepine, o kahi laʻana, ma waena o 300-800Mhz.

In order for the transmitter's frequency to be paired, , tpono e hoemi ia ka alapine o ka transmitter 1.2G.

Pono kēia mau mea a pau i ka hoʻohana ʻana i ke alapine downconverter no ka hoʻoili wikiō uila.

2. Kaʻu hoʻokomo o alapine (frequency) huahelu makemake Pono e e 2.0Ghz e 2.7Ghz, pono i ka downconverter i 200 Mhz to 900Mhz. Ka huli ana waiwai i maikaʻi loa e 30db ole 25db. Makemake anei keia e oluolu no oe e hana?

ʻAe, our professional engineer replied, we can do it. And, before delivery, we will show you the test video.

3. Can you make a down converter with LO1G? we need input 1300-1400 Mhz frequency and output 300-400 MHz.

ʻAe, our professional engineer confirms that we can re-design and modify some key components to do that. ʻOiaʻiʻo, before delivery, we will show you the test video.

4. Do you have or designed for MMDS applications? From 3400 -3600MHz, The S-Band is converted to the UHF range 400 i ka 600 MHz, LO oscillator is 3000MHZ.

Thanks for your inquiry, I will check with our engineer.

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? From 1,25 GHz to 3.4 GHz?

Thanks for your inquiry. 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?

ninau: 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. ʻOscillator kūloko 1800 MHz.

ʻAe, Here is our specification for your references.

Frequency Down Converer Block specification sheet

'ikamu	hoakaka
input frequency	950 MHz ～1550 MHz
alapine puka	350 MHz ～850 MHz
Local frequency	1800 MHz
nā kapuwaʻiʻehā	500MHz
Noise ke Kii	≤1.5dB
loaa	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 Interface	SMA-50KFD
ka nui	108*48*15mm o
Power supply mode	Socket power supply

Frequency Up Converer Block specification sheet

'ikamu	hoakaka
input frequency	350 MHz ～850 MHz
alapine puka	950 MHz ～1550 MHz
Local frequency	1800 MHz
nā kapuwaʻiʻehā	500MHz
Noise ke Kii	≤1.5dB
loaa	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 Interface	SMA-50KFD
ka nui	108*48*15mm o
Power supply mode	Socket power supply

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

pane: 0 dBm

7. I’m searching for a specific down converter, e hoʻohana ʻia me kā mākou loulou OFDM RF ponoʻī.

Ke ʻimi nei au i kahi downconverter kikoʻī, e hoʻohana ʻia me kā mākou loulou OFDM RF ponoʻī:

50ohms RF hookomo: 1.435 i ka 1.525 GHz

75 ohms IF output: kekahi kaha alapine, ma waena o 100Mhz a me 900MHz

ʻO ka pinepine LO makemake ʻia: 1846MHz

Loaʻa haʻahaʻa: ma kahi o 28dB

Loaʻa kiʻekiʻe: ma kahi o 43dB

DC mana mai IF puka puka, 12-24ka laulā vDC

ʻAe, we can customize it for you.

He aha ka DDC

Ma kikohoʻe neaiae aaioee, he kikohoʻe ia-mīkini hoʻololi (DDC) pio he digitized, hōʻailona palena ʻāpana i ka hōʻailona alapine haʻahaʻa ma kahi haʻahaʻa haʻahaʻa haʻahaʻa i mea e maʻalahi ai nā pae lekiō hope.. Ke kaʻina hana e mālama ana i ka 'ike i loko o ka palapala neaiae i emi i ka mea i nalowale a hiki i kēia polopelema ka wahaheʻe i loko o ka makemakika keʻano o ka hanaʻana. Ke hoʻokomo o a me ka auaiaea mau lepa a hiki e maoli paha luna 'Eia kekahi laʻana. Pinepine i ka DDC pio, mai ka maka Radio alapine a waena alapine (frequency) i lalo i ka luna 'baseband hoailona.

kuhikuhipuʻuone

A DDC ninoieo o ekolu subcomponents: he pololei kikohoʻe synthesizer (DDS), he haʻahaʻa-hele Kānana (LPF), and a down sampler (i hiki ke noniakahi i loko o ka haʻahaʻa-hele Kānana). Hoʻokumu ka DDS i kahi sinusoid paʻakikī ma ke alapine waena (ina). Multiplication o ka palapala alapine (frequency) me ka hoʻokomo o neaiae hana i nā kiʻi e pili ana i ka huina a me ka unuhi alapine (frequency) (e hahai ana mai na waiwai hoololi alapine o ka hoololi Fourier). The low-pass filters pass the difference (a laila. baseband) alapine (frequency) ana hoomalau ana i ka huina alapine (frequency) kiʻi, kūpono ai i loko o ka luna 'baseband e hoohalike ai o ka palapala neaiaea. Ke manaʻo nei i kahi koho kūpono o IF a me LPF bandwidth, ka luna 'baseband neaiae mea mathematically like me ka palapala neaiae. Ma kona hou ano, it can readily be down-sampled and is more convenient to many DSP algorithms. Hiki ke hoʻohana ʻia kekahi kānana haʻahaʻa haʻahaʻa me FIR, IIR, a me nā kānana CIC. ʻO ka koho maʻamau he kānana FIR no ka liʻiliʻi o ka decimation (emi mai o ka umi) or a CIC filter followed by an FIR filter for larger down-sampling ratios.

Likeʻole ma luna o ka DDC

He mea kōkua kekahi mau ʻano like ʻole ma ka DDC, a me na mea he nui e hoʻokomo o ka manaʻo neaiaea i loko o ka DDS. O nā:

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, a me ke kūpono hewa neaiae ua wae 'ia, a ua hānai mai hoʻi i loko o ka DDS
2. A Costas loop ma i, ua hoʻonuiʻia ka I a me Q a me ka haahaa e hele i wae 'i hapa o ka BPSK / QPSK lawe ke ola loop

manaʻo
DDCs i ka hapanui mau hoʻokō i loko o ke kūpili ma ka mahinaʻai-programmable puka huihui ikehu lā a me ka noi-kekahi noniakahi wahi i puhi ai. Oiai lako polokalamu implementations mea no hoi e hiki, ana i loko o ka DDS, mea hoonui, and input stages of the low-pass filters all run at the sampling rate of the input data. Kēiaʻikepili ia olelo ana ia 'ana ma Analog i kikohoʻe converters (ADCs) ka laʻana ma nā ʻumi a i ʻole haneli 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 input down converter to 300-400Mhz.

Hoʻoiho kiʻi downconverter Kina Shenzhen mea hoʻolako， Hoʻoponopono pinepine

inoa: Mea hoʻololi kiʻi
kumu hoʻohālike: LWDC-248258I
Heluhelu: 1805001
RF +12V IF
Name: Hoʻololi RF Down
Model: LWDC-3000I
Model: LWDC-1400
Hoʻokomo pinepine 2G~2.7G(2000~2700Mhz)
lalo: 1800MHz
Hoʻopuka pinepine: 200Mhz-700Mhz
SN2405002

Customize Frequency Specification Sheet Download

OF 1750Mhz Down