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Overview

OmniVision's OV491 is a compact image signal processor (ISP) companion chip that pairs with OmniVision's portfolio of automotive RAW image sensors for automotive imaging applications. The OV491 is ideally suited to streamline surround view system architectures with dual sensor input capability, and is compatible with OmniVision's OX03A, OX02A, OV2775, OV10650, and OV10640 automotive image sensors.

The OV491's support for dual sensor input enables a system with only two ISP companion chips to process four camera inputs, each up to two megapixels in resolution. The OV491 can process high dynamic range (HDR) video up to 1080p resolution at 60 frames per second (fps), with dual sensor input processing capabilities up to 30 fps for compatible sensors.

The OV491 comes in an AEC-Q100 Grade 2-qualified 7 x 7 mm BGA package and contains an advanced set of safety mechanisms to enable ASIL rated camera systems.

Features

AEC-Q100 grade 2 qualified

Advanced 150 Mp/s throughput ISP for high quality image capturing and video streaming

Local and global tone mapping support

Up to 3-capture HDR combination

Simultaneous output of fully processed YUV for display-based applications and RAW for machine vision applications

Embedded information including frame counter, temperature, and register data for each image to enable critical automotive safety applications

Auto white balance (AWB)

Automatic exposure control (AEC) / automatic gain control (AGC)

Supports statistics data of up to four user programmable ROIs

SCCB master/slave interface for sensor and ASIC configuration

Supports four-wire or two-wire serial interface to retrieve stored firmware from external memory devices, such as EEPROM

On-chip PLL to generate internal clocks

On-chip voltage regulator 1.8V to 1.1V

Brown-out detection circuit and output flag

Supports 2x2 lane MIPI RX/TX and 1x4 lane MIPI RX/TX

Supports 12-bit DVP input, shared with MIPI RX (1.2 Gbps/lane)

Supports 12-bit DVP output, shared with MIPI TX

Supports 24-bit DVP output, shared with BT1120 output

Embedded 32-bit RISC processor for high performance and flexibility

Supports 1K bits of one-time programmable memory (OTP)

JTAG boundary scan

Part Specification
SpecOV00491-B69G-1COV00491-B69G-TC
PackageBGABGA
Sensor ResolutionUp to 2MPUp to 2MP
Highest Frame Rate60 fps (single sensor) @ 2MP
30 fps (dual sensor) @ 2MP
60 fps (single sensor) @ 2MP
30 fps (dual sensor) @ 2MP
Output FormatYUV
RAW
BT656/601/1120
RGB
YUV
RAW
BT656/601/1120
RGB
Operating Temperature-40°C to +105°C-40°C to +105°C
Recommended ArchitecturesSVS
CMS
SVS
CMS
Product GuidePDFPDF
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