The SAA9069 is a digital vertical line filter (DVF) intended for use in picture-in-picture applications within digital or analogue televisions. It functions by computing the average of three horizontal video lines to reduce noise and improve image quality.
The device utilizes a 20-bit shift register for data storage and performs filtering through a specific summation order: one-quarter weight on line 1, half weight on line 2, and one-quarter weight on line 3. The output is the averaged information generated during the third line period.
| Input voltage LOW (VIL) | 0 - 0.8 V |
|---|---|
| Input voltage HIGH (VIH) | 2.0 - VDD V |
| Output voltage HIGH (VOH) | VDD-0.4 to VDD V |
| Package type | 20-lead mini-pack; plastic (SOT163A) |
| Maximum power dissipation | 300 mW |
It is a digital vertical line filter for use in picture-in-picture applications.
It computes the average using 1/4 x line 1, 1/2 x line 2 and 1/4 x line 3.
It has been designed for use with the Picture-in-Picture Controller SAA9068.