IP to HDMI CVBS video decoder board H264 low latency

Feature

• H.264 video decoder board, high definition output up to 1920*1080@60
• IP Ethernet RJ45 input video stream, HDMI + AV Analog CVBS output to the monitor
• Audio codec with audio output
• Video record with a Micro SD card or USB disk (power on automatic start)
• Two ways to set or configure the parameter. Webpage via browser or UART AT command via serial port.
• The normal video latency is about 200 milliseconds when paired with our encoder module
• Support proprietary H.264 video decompression only used p-frames for lowest latency as 50 milliseconds to 130 milliseconds
• RTSP to HDMI converter/decoder

Advantage

• Our video decoder board has H.264 video decoding and audio codec capabilities. It receives video streams through an IP Ethernet connection, decodes them, and outputs the display via HDMI and AV interfaces.
• The board offers a variety of signal outputs, including HD video at resolutions of 1080P and 720P, down-converted HD CVBS monitor video, and two channels of analog audio.
• The video decoder board also features DVR recording functionality, allowing users to record onto a Micro SD card or USB disk using dedicated recording switch controls.
• Moreover, it includes a built-in RTSP server that facilitates video streaming over Ethernet for use with remote software or hardware decoders (optional).
• Designed to be compact, our video board is ideal for embedded applications and enables real-time live video monitoring through wireless links or Ethernet connections.

Specification

Input and Output

HD video output	HDMI type A connector
Composite video output	6PIN PH2.0mm connector
Audio output	Embedded HDMI and 6PIN PH2.0mm connector
Power in	2PIN PH2.54mm connector
USB Host	4PIN PH2.0mm connector
Keys+LEDs	Extension port for assembling keys and LEDs on necessary
3.3V TTL data uart	3PIN PH1.25mm connector
3.3V TTL control uart	4PIN PH1.25mm connector
TF-Card	TF-Card slot
Ethernet	6PIN PH2.0mm connector

Video and Audio

Video output	HDMI and CVBS
Video formats	1080P or 720P, 720*480 60I(NTSC), 720*576 50I(PAL)
Video Decoding	H.264
Audio output	Embedded HDMI and AV audio
Audio Decoding	AAC
Decryption	AES256
Storage	USB disk or micro SD card
Ethernet stream protocol	Support UDP TS stream decoding, RTSP client decoding, RTSP server forward

Monitoring and control

1. Webpage via computer browser (default IP address 192.168.1.24)
2. Send the UART AT command via the serial control port.

Temperature range

Full specification: 0° to +70°C Ambient (Optional: -40° to +85°C )

Storage: –40° to +85°C

Physical Characteristics

Dimensions: 80.4 * 50.8mm(not including connectors out of the board)

PCB thickness: 1.2mm, maximum height of up components less than 7mm, maximum height of bottom less than 2.5mm.

Weight: 27.3g

Power requirements

Input range: 9~30VDC

Power consumption: <250mA@12V

I/O signals:

Power in and USB Host

The power input interface is a 2PIN PH2.54mm connector. The USB host is a 4PIN PH2.0mm connector.

 

The AV out is a 6PIN PH2.0mm connector. The Ethernet port is a PH2.0mm connector, 100M ethernet port. This video decoder board supports UDP TS video stream decoding, RTSP client decoding, and also RTSP server forward.

Data-uart and control-uart

Data uart: 3PIN PH1.25mm connector, TTL 3.3V. When the video decoder board works paired with our video encoder module and Ethernet linker (wireless or wire), the uart data of the encoder module will be transferred to this uart.

Control uart: 4PIN PH1.25mm connector, TTL 3.3V. This video decoder board system can be set up via this control uart with AT command.

LEDs and Keys

The extension port is designed for assembling keys and LEDs if necessary, it’s a 2.0mm 5*2PIN connector, please view the PCB silk printing for its signals (as the photo above).

LED	Description
Power-LED	Light on when the board is normally powered
Video-LED	Blinks when the video stream is normally received and decoding
Record-LED	Light on when video is being recorded with a USB disk or TF card

OSD_key

OSD key: turn on/off the status of the OSD displaying, and long press it to switch(more than 1s). the status will be kept after reboot. When the OSD status is on without any OSD data input from the data uart, the system will display video information (video bitrates, etc.) on the video screen. When the OSD status is on with data input from the data uart, the system will display text information of the uart data on the video screen.

Rec_Key

Record key: switch button for video recording, short press to change its status. The system will automatically check the storage device(TF card or USB disk, priority TF card) after power on and start to record video when the storage device is inserted. Just press the button to stop or record again.

RJ45 ethernet COFDM Transmitter for the IP camera video Transmission

FAQ

Q: How can I use the Rec key to record the video?

A: After the storage device is connected, the system detects the storage device and automatically records the video.

Q: Can I use the Rec_key pin?

A: Connect a button between the REC_Key pin and the GND pin (if there is no button, simulate the button operation by short-circuiting REC_Key and GND), or use the MCU’s gpio to connect the REC_Key pin for control.

Q: Do you have an appropriate box for your video LAN modules?

A: No, if you need, we have to make one metal box for you, it has extra cost.
We only provide these two boards to customers as accessories. Customers will install them in their own iron boxes. Customers will also install other boards together, so the shell is made by the customers themselves.

Q: One of them has an FPGA that heats up during operation.

A: It is normal for the operating temperature to be high during encoding and decoding. Our boards can pass high and low temperature tests at -40 degrees and 80 degrees. If necessary, you can add your own heat sink, or add a cooling fan to the case. Whether it is very hot or not is also related to the local temperature and working environment. Heat dissipation can also be achieved by using thermal conductive adhesive to stick a small heat sink of appropriate size on larger ICs such as CPU and DDR.