Wayar da Bidiyo mara waya ta RF Mitar Dijital Down Converter COFDM Mitar Canja wurin 2.4G zuwa 600Mhz ƙananan BDC
Digital Down Converter
Mitar Bidiyo mara waya ta RF Mitar Dijital Down Canja wurin COFDM Mitar Canja wurin 2.4G zuwa 600Mhz low
Teburin Abubuwan Ciki
Selling Points
- Input mitoci daga 24000 to 600MHz (Lower 1800Mhz)
- high bandwidth
- Low lokaci amo
- High-mita kwanciyar hankali
Musammantawa
RF Frequency Range: 2400 MHz
IF Frequency Range: 600 MHz
Komawa Loss:-12 DB
Frequency Kauce wa kuskure: ± 10 ppm
image kin amincewa: 60 dBc
Flatness: ± 0.5 DB (8MHz bandwidth)
Chanza Gain: 25 DB
Phase surutu (dBc / Hz)
dBc / Hz @ 1KHz ≤-80
dBc / Hz @ 10KHz ≤-90
dBc / Hz @ 100KHz ≤-100
Supply awon karfin wuta: 10~ 15V
ikon Yanzu: 100 Ma
Zafin aiki Range: +25 ℃
Port
RF IN: SMA-50K
IF NESA: SMA-50K
Ikon + 12V: Stick
GND: soldering lug
Note
- Mai juyawa baya buƙatar ƙara ƙaramar ƙaramar ƙararrawa a ƙarshen baya.
- Actual Test: rufaffiyar-madauki gwajin karkashin mita na 2.4GHz / bandwidth 4MHz, da samun ji na ƙwarai iya isa -105dBm.
- Input mita goyon bayan 1 ~ 3GHz. (Za mu iya taimaka keɓancewa).
- Output frequency supports 300~700MHz. (Za mu iya tallafa siffanta).
About the above video:
Our most popular products are wireless video transmitters and receivers. Duk da haka, some clients require modification of the transmission frequency to meet local legal demand, in which case the digital frequency up-down converter block comes in handy. One customer requested that we customize the RF frequency down converter for his 2.4G wireless video transmitter. 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.
FAQs
A mitar RF toshe downconverter (BDC) don masu watsa bidiyo mara igiyar waya na'ura ce da za ta iya canza babban kewayon mitar zuwa ƙaramin mitar mitoci.
Yawanci ana amfani dashi a gefen watsa bidiyo mara waya. Misali,
- Daga 5.8G zuwa 2.4G mai juyawa
- Daga 2.4G zuwa 1.2G mai juyawa
- Daga 1.2G zuwa 600Mhz down Converter
Wannan ya faru ne saboda gaskiyar cewa mitocin watsa mara waya a cikin ƙasashe ko yankuna da yawa ana iyakance su ta dokokin gida da ƙa'idodi..
Ba a yarda a yi amfani da shi a cikin takamaiman kewayon mitar ba.
Don canza mitar aiki na mai watsawa da mai karɓa, down-conversion or up-conversion is required. Tabbatar cewa mitar watsawa ta dace da dokokin gida da ƙa'idodi.
Hakanan akwai yanayin inda ƙwararrun masu karɓar mitar ke daidaitawa, misali, tsakanin 300-800Mhz.
In order for the transmitter's frequency to be paired, tdole ne a rage yawan mai watsawa na 1.2G.
All of this necessitates the use of a frequency downconverter for wireless video transmission.
a, our professional engineer replied, we can do it. And, before delivery, we will show you the test video.
a, our professional engineer confirms that we can re-design and modify some key components to do that. Tabbas, before delivery, we will show you the test video.
Thanks for your inquiry, I will check with our engineer.
Thanks for your inquiry. We can customize for you.
Please tell us the specification details of your transmitter and receiver modules.
tambaya: We are interested in n.1 downconverter from 950-1500 Mhz ku 350-850 Mhz and n.1 upconverter from 350-850 Mhz ku 950-1500 MHz. Oscillator na gida 1800 MHz.
a, Here is our specification for your references.
Frequency Down Converer Block specification sheet
|
Item |
Musammantawa |
|
input frequency |
950 MHz ～1550 MHz |
|
output frequency |
350 MHz ～850 MHz |
|
Local frequency |
1800 MHz |
|
span |
500MHz |
|
surutu Figure |
≤1.5dB |
|
riba |
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 |
|
size |
108*48*15mm |
|
Power supply mode |
Socket power supply |
Frequency Up Converer Block specification sheet
|
Item |
Musammantawa |
|
input frequency |
350 MHz ～850 MHz |
|
output frequency |
950 MHz ～1550 MHz |
|
Local frequency |
1800 MHz |
|
span |
500MHz |
|
surutu Figure |
≤1.5dB |
|
riba |
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 |
|
size |
108*48*15mm |
|
Power supply mode |
Socket power supply |
tambaya: If a signal of -25 dbm enter, what level has the coverterd output?
Amsa: 0 dBm
Mene ne sayen na'urori
A sigina na dijital aiki, mai dijital saukar-Converter (sayen na'urori) sabobin tuba a digitized, Siginar iyaka-iyakantaccen sigina zuwa ƙananan siginar mitar a ƙaramin ƙima don sauƙaƙe matakan rediyo na gaba.. A tsari tserar duk bayanai a cikin na asali siginar kasa da abin da aka rasa to Ƙididdigar kurakurai a cikin ilmin lissafi matakai. The labari da kuma fitarwa sakonni iya zama real ko hadaddun samfurori. Sau da yawa sayen na'urori sabobin tuba daga raw mitar rediyo ko tsaka-tsaki mita saukar zuwa wani hadadden baseband siginar.
Architecture
A sayen na'urori kunshi uku subcomponents: wani kai tsaye dijital synthesizer (DDS), a low-izinin tace (LPF), and a down sampler (wanda za a iya hadedde cikin low-izinin tace). DDS yana haifar da hadaddun sinusoid a tsaka-tsakin mitar (IF). Multiplication na tsaka-tsaki mita tare da shigar da alama halitta images a tsakiya a ware Naira Miliyan Xari da bambanci mita (wanda ya biyo baya daga kaddarorin masu canzawa na Mitar Fourier). The low-pass filters pass the difference (Ina nufin. baseband) mita yayin da kãfirtarsu da Miliyan Xari mita image, sakamakon a wani hadadden baseband misali na asali siginar. Ɗaukar zaɓi mai hukunci na IF da bandwidth LPF, hadaddun baseband sigina ne shifran daidai da asali siginar. A ta sabon nau'i, it can readily be down-sampled and is more convenient to many DSP algorithms. Ana iya amfani da duk wani madaidaicin matattara mai ƙarancin wucewa ciki har da FIR, IIR, da CIC tacewa. Zaɓin da aka fi sani shine tace FIR don ƙananan adadin raguwa (kasa da goma) or a CIC filter followed by an FIR filter for larger down-sampling ratios.
Bambance-bambance a kan sayen na'urori
Bambance-bambancen da yawa akan DDC suna da taimako, ciki har da yawa da cewa shigar da wani feedback alama a cikin DDS. wadannan sun hada da:
- 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, da kuma sakamakonsa na kuskure siginar da aka tace da kuma ciyar da baya cikin DDS
- A Costas madauki a cikin abin da nake da Q ake yawaita da kuma low izinin tace kamar yadda wani ɓangare na wani BPSK / QPSK m dawo da madauki
aiwatar
DDCs aka fi aiwatar a dabaru a filin-programmable ƙofar iri-iri ko aikace-aikace-takamaiman Hadakar haihuwarka. Duk da yake software implementations ne kuma zai yiwu, ayyukan a cikin DDS, masu yawa, and input stages of the low-pass filters all run at the sampling rate of the input data. Wannan data ne fiye dauka kai tsaye daga analog zuwa dijital converters (ADCs) samfurin a dubun ko ɗaruruwan 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.
Hoto watsa downconverter China Shenzhen maroki， Keɓance mitoci
suna: Mai sauya hoto
abin koyi: Saukewa: LWDC-248258I
Lamba: 1805001
RF +12V
name: RF Down Converter
Model: Saukewa: LWDC-3000I
Model: Saukewa: LWDC-1400
Shigar da mitar 2G ~ 2.7G(2000~ 2700Mhz)
Kasa: 1800MHz
Yawan fitarwa: 200Mhz-700Mhz
Saukewa: SN2405002
| MIN | TYPE | VW Crafter birki haske kamara dual amfani don | ||
| Bandiyar mitar aiki (MHz) | 1300 | – | 1400 | Mitar mitar aiki (MHz) |
| Oscillator na gida (MHz) | 1000 | Oscillator na gida (MHz) | ||
| Mitar matsakaici (MHz) | 300 | – | 400 | Mitar matsakaici (MHz) |
| Juyawa Riba(DB) | 18 | 20 | 22 | Juyawa Riba(DB) |
| Samun Lalata (DB) | ±1 | – | Samun flatness(dB) da | |
| Siffar hayaniya (DB) | 1.5 | – | Hoton surutu(dB) da | |
| Matsakaicin Ragowar Port Standing Wave VSWR | 1.5 | 1.8 | 2 | Matsakaicin Ragowar Port Standing Wave VSWR |
| Port Impedance(ohm) | 50 | – | impedance tashar jiragen ruwa(ohm) | |
| Matsakaicin ikon shigarwa (dBm) | -5 | Matsakaicin ikon shigarwa (dBm) | ||
| Matsakaicin ikon fitarwa (dBm) | 15 | Matsakaicin ƙarfin fitarwa (dBm) | ||
| Working ƙarfin lantarki (V) | 10 | 12 | 15 | Wutar lantarki mai aiki (V) |
| Operating yanzu (Ma) | 130 | 150 | 180 | Aiki na yanzu (mA) |
| zafin aiki (° C) | -25 | 55 | Yanayin aiki (°C) | |
| Storage zazzabi (° C) | -45 | 65 | Yanayin ajiya (C) | |
| Girman mm (ba tare da haɗin suna) | 62x32x14mm | Girma mm (ba tare da mai haɗawa ba) |
Customize Frequency Specification Sheet Download
| Item | siga |
| input frequency | 2100 MHz ～2500 MHz |
| output frequency | 350 MHz ～750 MHz |
| Local frequency | 1750 MHz |
| surutu Figure | ≤1.5dB |
| riba | 15 DB |
| Carrier leakage | ≤-20dBm |
| Belt unevenness(8MHz) | ≤1.5dB |
| IIP3: | ≥15dBm |
| maximum input level | 0dBm |
| VSWR | ≤1.5 |
| operation temperature | -10～+60℃ |
| voltage current | ≤12V/240mA |
| RF Interface | N-50KFD |
| size | 108*48*22mm |
| Power supply mode | Online power supply |
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