BU6520KV,BU6521KV are video encoders with built-in AIE image correction function. Also, BU6521KV has the image correcting function of the fog reduction, too. Fog Reduction, the brightness correction, the backlight correction and the chroma emphasis can improve the visibility of the input image of the camera.
The ROHM BU6520KV and BU6521KV are video encoder chips that provide NTSC/PAL composite video output and include built‑in Adaptive Image Enhancer (AIE) functions. BU6521KV adds a fog‑reduction feature for improved visibility in low‑light conditions.
The document contains a description of features, absolute maximum ratings, operating conditions, block diagrams, pin functions, electrical characteristics, and ordering information for both devices.
| Supply voltage (VDDIO) | -0.3 V to +4.2 V |
|---|---|
| Supply voltage (VDDI2C) | -0.3 V to +4.2 V |
| Operating temperature range | -40 °C to +85 °C |
| Input frequency (fin) | 2 MHz – 35.5 MHz |
| Supply current (CORE) BU6520KV | 30 mA (typ.) |
| Package | VQFP48C |
Both devices output video compatible with NTSC/PAL composite video (CVBS) format.
The fog‑reduction function is available only on the BU6521KV model.
The chips operate from –40 °C up to +85 °C.
Both devices are supplied in a VQFP48C package.