Features and Benefits
- Multiformat video decoder supports NTSC (J/M/4.43), PAL (B/D/G/H/I/M/N), SECAM
- Integrates four 54 MHz, 10-bit ADCs
- SCART fast blank support
- Clocked from a single 28.63636 MHz crystal
- Line-locked clock-compatible (LLC)
- Adaptive Digital Line Length Tracking (ADLLT™), signal processing, and enhanced FIFO management give mini-TBC functionality
- 5-line adaptive comb filters
- Proprietary architecture for locking to weak, noisy, and unstable video sources such as VCRs and tuners
- Subcarrier frequency lock and status information output
- Integrated automatic gain control (AGC) with adaptive peak white mode
- Macrovision® copy protection detection
- Chroma transient improvement (CTI)
The ADV7184 integrated video decoder automatically detects and converts standard analog baseband television signals compatible with worldwide NTSC, PAL, and SECAM standards into 4:2:2 component video data compatible with 16- or 8-bit CCIR 601/CCIR 656.
The advanced, highly flexible digital output interface enables performance video decoding and conversion in line-locked, clock-based systems. This makes the device ideally suited for a broad range of applications with diverse analog video characteristics, including tape-based sources, broadcast sources, security and surveillance cameras, and professional systems.
The accurate 10-bit ADC provides professional quality video performance and is unmatched. This allows true 8-bit resolution in the 8-bit output mode.
The 12 analog input channels accept standard composite, S-video, and component video signals in an extensive number of combinations.
AGC and clamp-restore circuitry allow an input video signal peak-to-peak range of 0.5 V to 1.6 V. Alternatively, these can be bypassed for manual settings.
The fixed 54 MHz clocking of the ADCs and datapath for all modes allows very precise, accurate sampling and digital filtering. The line-locked clock output allows the output data rate, timing signals, and output clock signals to be synchronous, asynchronous, or line locked even with ±5% variation in line length. The output control signals allow glueless interface connections in most applications. The ADV7184 modes are set up over a 2-wire, serial, bidirectional port (I2C compatible).
SCART and overlay functionality are enabled by the ability of the ADV7184 to process CVBS and standard definition RGB signals simultaneously. Signal mixing is controlled by the fast blank pin. The ADV7184 is fabricated in a 3.3 V CMOS process. Its monolithic CMOS construction ensures greater functionality with lower power dissipation. It is packaged in a small, Pb-free, 80-lead LQFP.
- High end DVD recorders
- Video projectors
- HDD-based PVRs/DVDRs
- LCD TVs
- Set-top boxes
- Security systems
- Digital televisions
- AVR receivers
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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