ADA4424-6ARUZ-RL

电荷泵6通道SD / ED / HD视频滤波器 6-Channel SD/ED/HD Video Filter with Charge Pump

Product Details

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.

**Applications**

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DVD players and recorders

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Set-top boxes

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Projectors

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Personal video recorders

### Features and Benefits

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3 SD channels; 18 MHz typical

1 dB bandwidth BW

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3 ED/HD channels; 25 MHz/34 MHz typical 1 dB BW

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Fixed gain of 6.2 dB 2.042 V/V

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Onboard negative supply for output coupling without capacitors

Minimal dc offset at the output pins

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Internal summation of Y and C channels for CVBS output

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Flexible input DC offset cancellation for luma channels

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D- terminal EIAJ RC-5237 D5 and S-terminal S1/S2 support

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Capable of driving two 2 back-terminated 75 Ω video loads simultaneously

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Separate power-down pins for SD and ED/HD sections

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38-lead TSSOP package

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Sony Green Partner Environmental Quality Approval Program compliant