The development of the tuner has evolved from the initial module built with discrete components to the later double-conversion intermediate frequency output. Although this architecture has been towards the trend of turning the tuner into an IC, its disadvantage is that it still requires two external SAW filters to complete it. The function of the tuner cannot be fully integrated with IC. Zero IF technology can save the first SAW filter, and the second SAW filter can be replaced by the channel selection filter, so this architecture is suitable for fully integrated silicon tuners. The current silicon tuners are basically all with Zero IF A double conversion tuner or a single conversion tuner with Zero IF. Silicon tuners will develop towards the requirements of small size, low power consumption and high integration to meet the needs of mobile TV.
Following the three major areas of satellite, terrestrial and cable transmission, digital TV will become the focus of competition among major manufacturers now and in the future. At present, mobile TV standards include DVB-H/S, ISDB-T, T-DMB, There are many kinds of MediaFLO, ATSCM/H and CMMB, which are dazzling. However, the tuner should not be greatly affected by the difference in standards. At present, the spectrum of various mobile TV standards mainly involves four frequency bands: VHF III (174-240MHz), UHF (470-862MHz), L1 ( 1450-1492MHz), L2 (1660-1685MHz). Semiconductor manufacturers often design tuners that support different standards at the same time to meet different needs. The following introduces you various types and colorful tuner products from different suppliers.
Considering the factors of chip size, power consumption and cost, many tuners may only support one or two mobile TV standards. The TDA18291HN silicon tuner from NXP uses BiCMOS technology to tune the DVB-H standard in the VHF III (174Mhz to 230Mhz) and UHF (470Mhz to 862Mhz) frequency bands, with internal integration of LNA, quadrature mixer, channel filtering Converter, PLL and VCO. The power consumption is only 150mW in DVB-T mode. The 5*5mm2 QFN 32-pin package is very suitable for mobile devices such as mobile phones, PDAs, and PNDs. Products from other suppliers, such as Analog’s ADMTV202, ADMTV340, and ADMTV3010 are used for ISDB-T, CMMB and T-DMB applications, respectively; Infineon’s TUA9001 is used for DVB-H/T;
In fact, most tuners will face the application of multiple mobile TV standards to meet the needs of different mobile TV standards in different regions, which is more convenient for OEM manufacturers to design and produce. ADMTV102 from ADI is such a tuner that meets DVB-H/T, T-DMB, CMMB, DMB-TH and multiple mobile and terrestrial TV standards. The device covers band-III, UHF, L-band, and can even support 65-108Mhz FM, integrates LNA, Mixer, PLL and VCO without SAW filter, 5*5mm2 QFN 32-pin package The power consumption is only 180mW. NXP’s TDA18292HN ultra-low-power multi-band silicon tuner has a record-setting support for DVB-T, DVB-H, DVB-SH, T-DMB and ISDB-T standards as well as VHF III, UHF, L1-band, and L2-band. All mobile TV frequency bands such as S-band. The power consumption of the 5*5mm2 QFN 32-pin package in DVB-H mode has reached an astonishing 20mW. Let us look forward to the launch of NXP, a multi-band, multi-standard silicon tuner!
Due to the high requirements of the tuner in terms of signal sensitivity, noise figure and AGC (automatic gain control), RF signals with frequencies exceeding 1Ghz also bring EMC problems, which brings certain difficulties to the design of OEM manufacturers. More tuner products are combined with the demodulator core or IC and supplied as a SiP IC or AFE module. The smaller AFE module can even be directly connected to the back-end source decoder through the SDIO interface like an SD card. (MPEG or H.264 decoder) IC is connected. HollywoodTM SoluTIon DTV1000 and DTV1001 from TI are products that combine tuner and demodulator functions and are specifically designed for mobile TV. DTV1000 works in UHF and L-band frequency range and is suitable for DVB-H standard. DTV1001 complies with ISDB-T standard. Infineon's OMNIVIATM TUS9090 uses 0.13um RF-CMOS process and supports DVB-T/H standards in VHF, UHF and L-bands frequency bands. At the end of 2008, Sharp developed a VA3C5CZ933 specifically for the Chinese mobile TV market, which supports the CMMB standard in the UHF470-798Mhz frequency band. The specific information is as follows:
Mobile TV will appear on any handheld device that is currently popular, fundamentally subverting the traditional viewing concept. This must rely on the high integration and low power consumption technology of semiconductor manufacturers on the core chip, and the tuner will obviously not be excluded.
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How far(long) the transmitter cover?
The transmission range depends on many factors. The true distance is based on the antenna installing height , antenna gain, using environment like building and other obstructions , sensitivity of the receiver, antenna of the receiver . Installing antenna more high and using in the countryside , the distance will much more far.
EXAMPLE 5W FM Transmitter use in the city and hometown:
I have a USA customer use 5W fm transmitter with GP antenna in his hometown ,and he test it with a car, it cover 10km(6.21mile).
I test the 5W fm transmitter with GP antenna in my hometown ,it cover about 2km(1.24mile).
I test the 5W fm transmitter with GP antenna in Guangzhou city ,it cover about only 300meter(984ft).
Below are the approximate range of different power FM Transmitters. ( The range is diameter )
0.1W ~ 5W FM Transmitter ：100M ~1KM
5W ~15W FM Ttransmitter : 1KM ~ 3KM
15W ~ 80W FM Transmitter : 3KM ~10KM
80W ~500W FM Transmitter : 10KM ~30KM
500W ~1000W FM Transmitter : 30KM ~ 50KM
1KW ~ 2KW FM Transmitter : 50KM ~100KM
2KW ~5KW FM Transmitter : 100KM ~150KM
5KW ~10KW FM Transmitter : 150KM ~200KM
How to contact us for the transmitter?
Call me +8618078869184 OR
Email me [email protected]
1.How far you want to cover in diameter ?
2.How tall of you tower ?
3.Where are you from ?
And we will give you more professional advice.
About Us
FMUSER.ORG is a system integration company focusing on RF wireless transmission / studio video audio equipment / streaming and data processing .We are providing everything from advice and consultancy through rack integration to installation, commissioning and training.
We offer FM Transmitter, Analog TV Transmitter, Digital TV transmitter, VHF UHF Transmitter, Antennas, Coaxial Cable Connectors, STL, On Air Processing, Broadcast Products for the Studio, RF Signal Monitoring, RDS Encoders, Audio Processors and Remote Site Control Units, IPTV Products, Video / Audio Encoder / Decoder, designed to meet the needs of both large international broadcast networks and small private stations alike.
Our solution has FM Radio Station / Analog TV Station / Digital TV Station / Audio Video Studio Equipment / Studio Transmitter Link / Transmitter Telemetry System / Hotel TV System / IPTV Live Broadcasting / Streaming Live Broadcast / Video Conference / CATV Broadcasting system.
We are using advanced technology products for all the systems, because we know the high reliability and high performance are so important for the system and solution . At the same time we also have to make sure our products system with a very reasonable price.
We have customers of public and commercial broadcasters, telecom operators and regulation authorities , and we also offer solution and products to many hundreds of smaller, local and community broadcasters .
FMUSER.ORG has been exporting more than 15 years and have clients all over the world. With 13 years experience in this field ,we have a professional team to solve customer's all kinds of problems. We dedicated in supplying the extremely reasonable pricing of professional products & services. Contact email : [email protected]
Our Factory
We have modernization of the factory . You are welcome to visit our factory when you come to China.
At present , there are already 1095 customers around the world visited our Guangzhou Tianhe office . If you come to China , you are welcome to visit us .
At Fair
This is our participation in 2012 Global Sources Hong Kong Electronics Fair . Customers from all over the world finally have a chance to get together.
Where is Fmuser ?
You can search this numbers " 23.127460034623816,113.33224654197693 " in google map , then you can find our fmuser office .
FMUSER Guangzhou office is in Tianhe District which is the center of the Canton . Very near to the Canton Fair , guangzhou railway station, xiaobei road and dashatou , only need 10 minutes if take TAXI . Welcome friends around the world to visit and negotiate .
Contact: Sky Blue
Cellphone: +8618078869184
WhatsApp: +8618078869184
Wechat: +8618078869184
E-mail: [email protected]
QQ: 727926717
Skype: sky198710021
Address: No.305 Room HuiLan Building No.273 Huanpu Road Guangzhou China Zip:510620
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English: We accept all payments , such as PayPal, Credit Card, Western Union, Alipay, Money Bookers, T/T, LC, DP, DA, OA, Payoneer, If you have any question , please contact me [email protected] or WhatsApp +8618078869184
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We recommend you use Paypal to buy our items ,The Paypal is a secure way to buy on internet .
Every of our item list page bottom on top have a paypal logo to pay.
Credit Card.If you do not have paypal,but you have credit card,you also can click the Yellow PayPal button to pay with your credit card.
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But if you have not a credit card and not have a paypal account or difficult to got a paypal accout ,You can use the following:
Western Union.  www.westernunion.com
Pay by Western Union to me :
First name/Given name: Yingfeng
Last name/Surname/ Family name: Zhang
Full name: Yingfeng Zhang
Country: China
City: Guangzhou
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T/T . Pay by T/T (wire transfer/ Telegraphic Transfer/ Bank Transfer)
First BANK INFORMATION (COMPANY ACCOUNT):
SWIFT BIC: BKCHHKHHXXX
Bank name: BANK OF CHINA (HONG KONG) LIMITED, HONG KONG
Bank Address: BANK OF CHINA TOWER, 1 GARDEN ROAD, CENTRAL, HONG KONG
BANK CODE: 012
Account Name : FMUSER INTERNATIONAL GROUP LIMITED
Account NO. : 012-676-2-007855-0
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Second BANK INFORMATION (COMPANY ACCOUNT):
Beneficiary: Fmuser International Group Inc
Account Number: 44050158090900000337
Beneficiary's Bank: China Construction Bank Guangdong Branch
SWIFT Code: PCBCCNBJGDX
Address: NO.553 Tianhe Road, Guangzhou, Guangdong,Tianhe District, China
**Note: When you transfer money to our bank account, please DO NOT write anything in the remark area, otherwise we won't be able to receive the payment due to government policy on international trade business.
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* It will be sent in 1-2 working days when payment clear.
* We will send it to your paypal address. If you want to change address, please send your correct address and phone number to my email [email protected]
* If the packages is below 2kg,we will be shipped via post airmail, it will take about 15-25days to your hand.
If the package is more than 2kg,we will ship via EMS , DHL , UPS, Fedex fast express delivery,it will take about 7~15days to your hand.
If the package more than 100kg , we will send via DHL or air freight. It will take about 3~7days to your hand.
All the packages are form China guangzhou.
* Package will be sent as a "gift" and declear as less as possible,buyer don't need to pay for "TAX".
* After ship, we will send you an E-mail and give you the tracking number.
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For Warranty .
Contact US--->>Return the item to us--->>Receive and send another replace .
Name: Liu xiaoxia
Address: 305Fang HuiLanGe HuangPuDaDaoXi 273Hao TianHeQu Guangzhou China.
ZIP:510620
Phone: +8618078869184
Please return to this address and write your paypal address,name,problem on note: |
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