COFDM HD Digital Wireless Video Transmission Development Kit

COFDM high-definition digital wireless image transmission development kit adopts COFDM modulation technology，Fully realized the function of high-definition digital wireless image transmission，For users to learn、Evaluate and test COFDM image transmission technology。The development kit consists of two parts: transmitter and receiver。Transmitter input digital video signal through HDMI interface，COFDM modulation after H.264 encoding compression(Realize the baseband function)，Then it is converted into an analog signal by the DAC and sent to the RF Transmitter and then passed through the PA(power amplifier) Amplify the signal to the antenna for transmission。The transmitter end of the COFDM wireless image transmission development kit includes two circuit boards: the SEM9363 encoding modulation board and the D-PA2400A power amplifier board.。The receiving end includes FC2400A down conversion board and COFDM Demodulator module，Send the demodulated digital video signal to the mobile phone through the USB interface(or PC、flat)Do H.264 decompression playback。
The transmitting end：

Receiving end：

COFDM HD Digital Wireless Video Transmission Development Kit Features：

• working frequency：2.400GHz ~ 2.483GHz
• The transmitter can be set to work in single PA and single antenna mode，It can also be set to work in dual PA and dual antenna mode
• Single PA transmit power：23dBm(200mw)，Adjustable output power
• The working channel can be set within 8 channels
• Channel bandwidth can be set：6M or 8M
• Modulation constellation can be set：QPSK、QAM16、QAM64
• Convolution code rate is configurable： 1/2, 2/3, 3/4, 5/6, 7/8
• COFDM modulation guard interval is configurable：1/4，1/8，1/16，1/32
• Transmitter video input：Micro HDMI interface
• video compression format：H.264
• Image clarity：1920x1080P@60、1920x1080I@60 backward compatible，Adaptive input digital video source
• Configurable convolutional coding ratio：4.3~31.7Mbps adjustable
• The transmitter provides a TF card interface，Support recording and transmission function
• Transmitter provides OSD interface
• The transmitter provides a control serial port
• Support AES encryption
• Transmitter power supply voltage 5.5V~16V，Current 350mA@12V
• receiver sensitivity：8-96±1dbm at MHz，6-97±1dbm at MHz
• Receiver provides Micro USB interface(USB slave)，The demodulated video can be connected to devices such as notebooks, tablets, and mobile phones for H.264 decoding and playback。
• Receiver power supply voltage：5V(Power supply via USB interface)
• system delay：<200ms(When decoding the display under Windows，HDMI input from transmitter to Windows decoding display on receiver)
• Transmission distance：1to 3 km
• Support multi-point receiving
• The SEM9363 board at the transmitter provides a debugging serial port、JTAG debug port
• The FC2400A board at the receiving end provides a debugging serial port。

SEM9363 encoding modulation board(version B)：

    SEM9363 wireless digital image transmission encoding and modulation board inputs high-definition digital video through the HDMI interface to the Hi3516A processor for H.264 compression encoding，The compressed video signal realizes COFDM channel modulation through FPGA，Then converted to analog signal modulation by AD936x and sent out。For user convenience，SEM9363 board version B will debug the serial port of Hi3516A、FPGA JTAG debug port、OSD interface、control serial port、Signals such as power supply are concentrated to J30 and transmitted to the external interface of D-PA2400A board。

D-PA2400A power amplifier board：

    D-PA2400A power amplifier board contains two independent RF power amplifier modules，Amplify and output the RF signal output by SEM9363A。J3 interface of D-PA2400A board and SEM9363 board(version B)connected to the J30 interface，Debug serial port of Hi3516A on SEM9363 board、FPGA JTAG debug port、OSD interface、control serial port、Signals such as power supply are concentrated on the external interface on the board edge of D-PA2400A。The two RF outputs of the SEM9363 board are respectively connected to the two RF input interfaces of the D-PA2400A board through IPEX cables。Working indicators of each power amplifier module on the D-PA2400A board：

• working frequency：2.400GHz ~ 2.483GHz
• gain：34±1dB
• Pout1dB：31dBm

FC2400A down conversion board：

    The FC2400A down conversion board converts the received 2.4GHz RF signal into a 250MHz signal，Then through the channel demodulation module, COFDM demodulation is converted into a digital signal，Finally, the demodulated digital video signal is sent to the mobile phone through the USB interface(or PC)Do H.264 decompression playback。The RF output of the FC2400A board is connected to the RF input of the COFDM Demodulator module through the radio frequency line。

• working frequency：2.400GHz ~ 2.483GHz
• RF interface：SMA antenna interface
• Receiving sensitivity：8-96±1dbm at MHz，6-97±1dbm at MHz
• 8Bit parameter setting switch(Reception and demodulation parameter setting)
• Micro USB interface(USB slave)，Connect the demodulated video to devices such as notebooks, tablets, and mobile phones for H.264 decoding and playback。
• COFDM transmit interface：5V
• board size：86connect the demodulated video to laptops

COFDM HD Digital Wireless Video Transmission Development Kit Shipping List：   

• COFDM 2.4GHz 200mw dual antenna transmitter
  • Aluminum shell
  • Built-in SEM9363 board
  • Built-in D-PA2400A board
  • 2.42 GHz transmitting antennas
  • Micro HDMI(Type D)1 cable(Used to connect aerial camera)
  • 1 OSD cable
  • Control serial port connection line 1
  • 1 serial debugging line
  • JTAG debug port connection line 1
  • 1 power cable
  • 1 TF card(Built-in software and documentation, etc.)
• FC2400A 2.4GHz receiving module
  • FC2400A board
  • COFDM Demodulator module
  • 2.41 GHz receiving antenna
  • 1 USB cable
  • 1 SWD debugging line
• hardware design files
  • SEM9363 board circuit schematic、Layout source file
  • D-PA2400A board circuit schematic diagram、Layout source file
  • FC2400A board circuit schematic diagram、Layout source file
  • Hardware User Manual
  • FPGA pin function definition
• software
  • For details, please refer to the COFDM Wireless Image Transmission Development Kit software function list above.
  • cross compiler
  • Software Development User Guide
  • Hi3516A serial programming tool、COFDM Demodulator module windows driver installation file
• Technical Services：
  Provide technical support services within 1 year after sales，Including hardware schematics/Layout Review services for customers to develop their own products based on COFDM high-definition digital wireless image transmission development kit technical solutions、Software debugging service。when necessary，Engineers can be arranged to assist in debugging(Travel expenses are borne by the user)。

Customized service

Our company can customize digital high-definition wireless image transmission products of different specifications according to customer application needs.：

• Other working frequency bands and RF power can be supported by designing PA modules with different specifications；
• The existing design can be changed to add other video input and output processing interfaces，Such as transmitter AV input、USB input、SDI input，Receiver HDMI output、SDI output, etc.；
• IP protocol low-latency long-distance broadband data transmission, etc.。