ADA4424-6 Rev. C is a 6-channel SD/ED/HD video filter with a charge pump and fixed gain.
The ADA4424-6 is a high-performance video reconstruction filter specifically designed for consumer applications such as DVD players, set-top boxes, and projectors. It features three standard definition (SD) channels and three extended definition (ED) or high definition (HD) channels, operating from a single 3.3 V supply with a dedicated 5 V supply for digital inputs. The device includes an on-board charge pump to eliminate the need for output coupling capacitors and supports D-terminal and S-terminal signaling.
Key features include fixed gain of 6.2 dB, minimal DC offset, and flexible input DC offset cancellation for luma channels. The filter sections utilize fifth-order Butterworth filters, with the HD section offering selectable corner frequencies for ED or HD signals. The device is available in a 38-lead TSSOP package and operates over an industrial temperature range of -40°C to +85°C.
| Number of Channels | 3 SD channels; 3 ED/HD channels |
|---|---|
| Fixed Gain | 6.2 dB (2.042 V/V) |
| SD Channel 1 dB Bandwidth | 18 MHz typical |
| ED Channel 1 dB Bandwidth | 25 MHz or 34 MHz typical |
| HD Channel 1 dB Bandwidth (Y) | 30 to 39 MHz |
| HD Channel 1 dB Bandwidth (P) | 25 to 34 MHz |
| Operating Voltage (3.3 V Supply) | 3.14 V to 3.46 V |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 38-lead TSSOP |
It is suitable for DVD players and recorders, set-top boxes, projectors, and personal video recorders.
No, it has an on-board negative supply for output coupling without capacitors.
The typical DC voltage gain is 6.2 dB (2.042 V/V).
Yes, it provides full support for D-terminal (EIAJ RC-5237 D5) and S1/S2 signaling.