ROHM BU6520KV BU6521KV Data Sheet
Summary
Video encoder ICs with built-in AIE image correction for security and automotive cameras. The ROHM BU6520KV/BU6521KV encode digital video to NTSC/PAL composite output with 75-ohm DAC drive. BU6521KV adds fog reduction. Correction: brightness, backlight, dynamic range, edge emphasis, gamma filters. Compatible with ITU-R BT.656 and YCbCr 4:2:2. Supports multiple NTSC/PAL clocks with EEPROM auto-setup. I2C config. VQFP48C, -40 to 85C. Targeted at security and automotive vision developers.
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AIE Adaptive Image Enhancer Series
Video Encoders built-in Image Correction
No.10060ECT03
BU6520KV,BU6521KV
●Description BU6520KV, BU6521KV are video encoders with built-in AIE image correcting 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. * AIE and Fog Reduction function are image processing technology by ROHM’s hardware.
●Features 1) Format of video output is compatible with NTSC/PAL composite video format (CVBS). Built-in DAC with direct 75Ω drive capability. 2) Built-in Fog Reduction function*1, dynamic range correction, edge-emphasizing filter and gamma filter. 3) Input/output data format is compatible with ITU-R BT.656 and YCb Cr=4:2:2 with synchronization signal. 4) Compatible with NTSC (27MHz, 28.63636MHz and 19.06993MHz)/ PAL(27MHz, 28.375MHz, 35.46895MHz and 18.9375MHz) *2. 5) Registers can be set up with a 2-line serial interface. 6) Registers can be automatically set up by reading from external EEPROM, when after resetting or changing mode. *1 As for the Fog Reduction feature, it loads only BU6521KV. *2 NTSC 19,06993 MHz and PAL 18,9375 MHz support only BU6521KV.
●Applications Security camera, camera for automotive, drive recorder etc.
●Line up matrix
Temperature
Power Sopply Input Control Output
Part No. Image size Feature Operating Package
Voltage(V) Interface Interface Interface
Range(℃)
1.4 to 1.6 I2C,
8bit, 8bit,
(VDDCore) 720x480, Serial AIE,
BU6520KV YUV=4:2:2, YUV=4:2:2, -40 ~ +85 VQFP48C
2.7 to 3.6 SD size EEPROM Video output
ITU-R BT.656 ITU-R BT.656
(VDDI/O, AVDD) interface
1.4 to 1.6 I2C, AIE,
8bit, 8bit,
(VDDCore) 720x480, Serial Fog reduction,
BU6521KV YUV=4:2:2, YUV=4:2:2, -40 ~ +85 VQFP48C
2.7 to 3.6 SD size EEPROM Video output
ITU-R BT.656 ITU-R BT.656
(VDDI/O, AVDD) interface
I2C BUS is a registered trademark of Philips
www.rohm.com 2010.02 - Rev.C
© 2010 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For ROHM BU6520KV BU6521KV Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 19 |
| File Size | 341.81 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
Which model supports fog reduction?
Only BU6521KV includes the fog reduction image correcting function.
What is the operating temperature range?
Both models operate reliably from -40℃ to +85℃.
How are registers configured on these encoders?
Use the 2-line serial interface or external EEPROM for automatic setup after reset.
What video output format is supported?
They output NTSC/PAL composite video (CVBS) via a built-in 75Ω drive DAC.