TV Decoder


Posted on Feb 5, 2014

The DE2 board is equipped with an Analog Devices ADV7181 TV decoder chip. The ADV7181 is an integrated video decoder that automatically detects and converts a standard analog baseband television signal (NTSC, PAL, and SECAM) into 4:2:2 component video data compatible with 16-bit/8-bit CCIR601/CCIR656. The ADV7181 is compatible with a broad range o


TV Decoder
Click here to download the full size of the above Circuit.

f video devices, including DVD players, tape-based sources, broadcast sources, and security/surveillance cameras. The registers in the TV decoder can be programmed by a serial I2C bus, which is connected to the Cyclone II FPGA as indicated in Figure 1. The pin assignments are listed in Table 1. Detailed information on the ADV7181 is available on the manufacturer`s web site, and from the Datasheet folder on the DE2 System CD-ROM. See DE2_pin_assignments. csv, a comma-delimited file that matches "standard" descriptive names to actual FPGA pin locations. This file can be directly opened in Microsoft Excel. Although the DE2 board does not include a TV encoder chip, the ADV7123 (10-bit high-speed triple ADCs) can be used to implement a professional-quality TV encoder with the digital processing part implemented in the Cyclone II FPGA. Figure 2 shows a block diagram of a TV encoder implemented in this manner.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Motorised Infrared volume remote control
LPCzone
convert square wave inverters to sine wave inverter
BQ24020 battery charger
Automatic Rain Sensing Wiper System using 555 Timer
Light Dimmer Circuit TRIAC dimmer circuitCircuitWorking
TA8136S Radio Control Transmitter Ic - Toshiba Semiconductor
3-Bit Binary counter
Audio Mixers Circuits
Night Light Saver
Mini Tracker
How To Build A Simple Car Alarm And Immobilizer



Top