Features and Benefits
- 3 SD channels; 18 MHz typical
1 dB bandwidth (BW)
- 3 ED/HD channels; 25 MHz/34 MHz typical 1 dB BW
- Fixed gain of 6.2 dB (2.042 V/V)
- Onboard negative supply for output coupling without capacitors
Minimal dc offset at the output pins
- Internal summation of Y and C channels for CVBS output
- Flexible input DC offset cancellation for luma channels
- D- terminal (EIAJ RC-5237 D5) and S-terminal (S1/S2) support
- Capable of driving two (2) back-terminated 75 Ω video loads simultaneously
- Separate power-down pins for SD and ED/HD sections
- 38-lead TSSOP package
- Sony Green Partner Environmental Quality Approval Program compliant
The ADA4424-6 is a high performance video reconstruction filter specifically designed for consumer applications. It consists of a standard definition (SD) section with two fifth-order Butterworth filters, and a high definition (HD) section with three fifth-order filters. The SD section contains an internal Y/C summer for CVBS output, whereas the HD section provides selectable corner frequencies for either extended definition (ED) or HD signals.
The ADA4424-6 filter/buffer section operates from a single 3.3 V supply. Full support for D-terminal (EIAJ RC-5237 D5) and S1/S2 signaling is provided, along with a dedicated 5 V supply pin. Separate enable pins are provided for the SD and HD sections.
The luma channels (Y_IN, HY_IN) of the ADA4424-6 are capable of detecting and cancelling dc input offsets of up to 1.1 V. Four distinct modes of detection/cancellation are available.
The output drivers on the ADA4424-6 feature rail-to-rail outputs with 6.2 dB gain. An on-board charge pump allows the outputs to swing up to 1.4 V below ground, eliminating the need for large coupling capacitors. Each output is capable of driving two 75 Ω doubly terminated cables.
The ADA4424-6 is available in a 38-lead TSSOP and operates in the extended industrial temperature range of −40°C to +85°C.
- DVD players and recorders
- Set-top boxes
- Personal video recorders
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.
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