Data Brief

For further information contact your local STMicroelectronics sales office.

February 2008

Rev 1

1/4

4

VB6851

QXGA camera module with auto focus

Features

(2048 x 1536)

specification

techniques

mode

Description

This databrief outlines a high performance

3.15 megapixel auto-focus camera module

(VB6851) for use across a range of mobile phone

handsets and accessories. It is designed to be

used for both high quality stills capture and video

modes. The module is SMIA 1.0 profile 2

compatible and is capable of generating raw

bayer 3 MP images up to 20 fps. The VB6851

supports the CCI control and CCP 2.0 data

interfaces.

As different phone platforms have different

baseband processors with varying capabilities, it

may not be possible for all phones to support the

associated image processing and auto-focus

algorithms. Where the baseband cannot support

this processing load, a separate hardware

accelerator (e.g. STV0986 ) or application engine

(e.g. STn8815) device can be incorporated in the

phone system to run the algorithms in hardware.

The specifications of these devices are contained

in a separate document.

The module design is optimized for both footprint

and height. The auto-focus mechanism combined

with a multi-element lens provides excellent

image quality at focus distances from less than

10 cm to infinity. All external components,

including the auto-focus actuator drivers, are

integrated inside the camera module, apart from

two CCI pull-up resistors.

VB6851 offers an ultra low power consumption

hardware standby mode consuming less than

30 µW (typ.).

PC00

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