DVB-T2 TV Module H265
Оглавление
COFDM DVB-T DVB-T2 Demodulator Decoder Module with TS Stream output
Why DVB-T265 Module is recommended?
- DVB-T2 TV module support 2 Tuner Diversity
- Tested in Germany
- Support MPEG4 and HDMI
- Touch screen control function RX TX IR ready
DVB-T265 TV Tuner Module is a Digital TV module with DVB-T2 decoder support H.264 and H.265 and mounts on the main DVD or Head unit PCBA.
It offers a DVB-T2 digital TV audio video / HD TV signal and turns your DVD player has DVB-T2 TV function.
It is fully compatible with Germany’s New Standard H.265 digital TV standard and all DVB-T2 or DVB-T adopted countries. Even it is H.264 or MEPG2~4.
It also can be used as COFDM Wireless Video receiver RX for Drone.
Особенность
- Perfectly compatible with all DVB-T / T2 full standards
- Receive frequency band: 174 ~ 862 МГц (support VHF band, UHF band)
- Поддерживает 6, 7 & 8 Полоса пропускания МГц
- Support 2K / 8K FFT mode, COFDM demodulation function
- Support automatic search and manually search
- Video Support Format: MPEG-1, MPEG-2 Main Profile @ Main Level (HD), H.264 MP @ Level 3 (HD), HEVC (H.264) High Tier @ Level, Div3.X, 4.0, 5.0 , 6.0 декодер
- Support 576i, 576П, 720я, 720П, 1080я, 1080P resolution output
- Support Auto, 16: 9 wide screen, 4: 3 letterbox, 4: 3 pan scan aspect ratio output
- ПАЛ / NTSC standard automatic switching
- Multi-language support: Английский, Французский, немецкий, Arabic, португальский, Turkish, испанский, итальянский, и т. д..
- FTA program reception
- Поддержка 7 days EPG
- Supports electronic graphics and multi-language subtitles
- USB support USB recording, multimedia and software upgrades,
- Support HDMI v1.3 version
- Support I2C communication
- Support UART communication
- Support IR communication
- Dolby sound (необязательный)
- ИЗ / Р / L output
- Support 2-way button A / D port, each way up to 7 кнопки
Описание
- The DVB-T / DVB-T2 Module supports DVB standard, receiving band 174 ~ 862 МГц (supports VHF band, UHF band), поддерживает 6, 7 & 8 Полоса пропускания МГц.
- Video playback Supports decoding of SD / HD streams at MPEG2 / H.264 broadcast level and decoding of Dolby AC-3 / E-AC-3 at MPEG level.
- The multimedia part of the DVB-T / DVB-T2 module is powerful, supports the playback of multimedia files in the mainstream formats, supports the playback of pictures in common formats, and supports the playback of recorded files.
- Support for real-time recording of the TV, time recording, support for channel A channel B record, support for time-shift functions such as set-top box applications.
- Multi-language support: Английский, Французский, немецкий, Arabic, португальский, Turkish, испанский, Польский, итальянский, и т. д..
Need a DVB-T2 TV Receiver box?
https://ivcan.com/p/dvb-t2-h265/
UART information
https://en.wikipedia.org/wiki/Universal_asynchronous_receiver-transmitter
- – Baud (115200)
- – Databits ( 8 )
- – Odd or Even Parity ( нет )
- – 1 x Start bit
- – Стоп-биты (1)
UART Communication data ( download PDF file ）
Downstream write operation frame:
Header code: 7Э 66 99 5А
Синхронизация: 55
Write operation frame: 33
- Write frequency and bandwidth command 03 80, the data length is 3 байты. The first two bytes are the frequency points, and the 3rd bytes is the bandwidth.
The frequency unit is MHz and retains one decimal place, такой как 474.0 МГц, which is 12 84 (hexadecimal, decimal data is 4740). Bandwidth data 00, 01, 02 represent 6M, 7M, 8M respectively - Other remote control commands (including all remote control commands such as volume addition, subtraction, запись, and stop)
01ФФ: The data length is 1 байт, which is the client code of the remote control code value.
Например, the volume adds (VOL+) is 4D, and the volume subtraction (VOL-) является 05.
Ending E7
Например:
1. Set frequency 666MHz bandwidth 6M
Need to send data 7E 66 99 5А 55 33 03 80 1А 04 00 E7
2 set frequency 474MHz bandwidth 8M
Need to send data 7E 66 99 5А 55 33 03 80 12 84 02 E7
3 volume plus
Need to send data 7E 66 99 5А 55 33 01 FF 4D E7
Explanation:
1, In addition to the data segment, which can be modified, the other head and tail synchronization data do not modify, В противном случае, it can not respond to commands. The correct response will return data segment 00 ФФ, the error will return 11 10
2, modify the frequency and bandwidth, please write three bytes at the same time, the separation has not been tested.
3, Please refer to the remote control user code for the remote control code.
4, The above data are all hexadecimal.
Downstream read operation frame:
Currently only tested read frequency and bandwidth
Send the command 7E 66 99 5А 55 11 03 80 E7
Return data 7E 66 99 5А 55 77 03 80 12 D4 02 E7 (red is frequency point and bandwidth 482.0M 8M)
Remote Control Code
For the trial sample, we recommended that you use our Power, AV input PCBA Board to test. It helps that you test all the functions.
8 Bit TS output Interface
DVB-T Diversity Tuner 8-bit TS output interface
- TS-RST
- TS-SDA
- TS-SCL
- Земля
- TSSYNC_SPIMISO
- TSCLOCK_SPICLOCK
- TSVALID_SPISS
- TSDATA_SPIMOSI
Вопросы-Ответы
вопрос: Will this tuner module work in a Samsung dvd-vr470m?
А: This DVB-T / DVB-T2 module is only suitable for secondary development by engineers or R&D companies.
вопрос: Does this DVB-T receiver decode BISS codes?
А: Нет. The most function DVB-T / DVB-T2 H264 265 decoder is used for digital TV receivers and COFDM wireless video decoders. Any special function should contact us to verify or further development.
вопрос: Does this DVB-T receiver decode support ASI output?
- The demodulation chip on our demodulation module uses a parallel interface called TSI (it has many more data lines than the ASI interface)
- The demodulation module itself does not have an MCU and cannot be provided to customers alone. It needs to be used on our decoding board.
- Например, with our decoding board, we convert the signal from the TSI interface of the demodulation module into a network port signal (например, наш one-way COFDM transparent transmission does this)
вопрос: Please check my module with missing SMD parts, Can you tell me the type/value of these three Rs and Cs?
вопрос: Is the MPEG-TS output of this diversity RF DVB-T DVB-T2 module a serial or parallel interface?
А: Our Sony EW300 chip module only has a serial TS stream in hardware.
вопрос: Your decoder chip provides video output through the standard module. How do I obtain the MPEG-TS output?
А: Please remove the resistor in the red box in the picture below. The resistance of the resistor is 22 Ом, and you can add it to restore the HDMI / CVBS video decoding output.
вопрос: Is there an AFS function on your in-car mobile tuner?
А: Нет. The AFS function on an in-car mobile DVB-T2 (Цифровое видеовещание – Second Generation Terrestrial) system typically stands for Automatic Frequency Switching or a similar feature. Its purpose is to ensure seamless reception of TV signals while the vehicle is in motion by automatically switching to the strongest available frequency of the same broadcast.
Вот как это работает:
- Signal Scanning: The system continuously scans for DVB-T2 signals while you are traveling.
- Seamless Handoff: When the current frequency becomes weak due to movement, the AFS feature identifies a stronger frequency carrying the same channel and switches to it without manual intervention.
- Improved Experience: This ensures uninterrupted viewing of TV programs, especially useful when traveling across regions with varying signal strengths.
вопрос: Does the system allow me to specify a frequency for searching manually? I wish to look for frequencies in steps of 1Mhz.
А: Поддерживается. In the below picture you can see that there is an underline at 774. You can enter different frequencies through the remote control, such as 688Mhz, 689Mhz, 690Mhz.
Mark –
This dual-tuner diversity module ensures reliable reception, даже в сложных, fast-moving situations such as those encountered by drones or vehicles. Stable HD video streaming with low packet loss is ensured by COFDM demodulation and 174–862MHz frequency coverage, ideal for aerial filming or emergency broadcasts.