Datasheet > VL6522

VL6522

更新时间： 2024-11-10 03:19:55

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		传感器
页数	文件大小	规格书
35页	277K
描述
VGA resolution USB2.0 web camera sensor

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数据手册

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VL6522 数据手册

VL6522

VGA resolution USB2.0 web camera sensor

Preliminary Data

Features

Description

■ 640 x 480 (VGA) USB2.0 Web camera

■ RGB Bayer color filter array

The VL6522 is a VGA imager on chip (IOC),

fabricated in a high performance 0.18 µm CMOS

imaging process. The device produces a YUV

4:2:2 digital video data stream at up to 60^(a)

frames per second, and supports a microphone

input.

■ 3.6 µm pixel size

■ Integrated 10-bit video ADC and processing

■ 16-bit audio pre-amplifier, Σ - Δ ADC and

processing

Video and audio data is output via a USB2.0 high

speed (480 Mbps) interface and allows simple

interfacing to a host PC using generic audio and

video class drivers under the appropriate

operating system (Windows XP). Audio/video

class compliance and vendor command sets

allow development of other O/S drivers with

relative ease.

■ USB2.0 high speed interface for data transfer

and control

■ I²C master capability

■ USB audio class type 1 compliance

■ USB video YUV2 compliance

■ On-chip 3.3 V and 1.8 V regulators

■ Requires single 5 V supply

Figure 1.

Functional block diagram

■ Minimum required PCB support components

■ Video format: 640 x 480 YUV2 up to 30 fps

■ Single 12 MHz input clock

Audio

VGA pixel array

Power

management

pre-amplifier

ADC readout

ADC

■ Integrated image processing functions:

– Automatic exposure

– Automatic white balance

– Dark level compensation

– Lens shading correction

– Image sub-sampling

– Flicker cancellation

audio

data

pixel video

data

OSC, PLL

USB2

interface

Digital processing

– Sharpening

– Gamma correction

– RGB to YUV 422

■ Audio processing:

– Audio class compliance PCM16

– Preamplifier + ADC + processing

– Audio rates of 8 kHz to 48 kHz, 16 bits

– Audio dynamic range from mic. input to

USB data output > 60 dB

a. 60 fps max at QVGA resolution, 30 fps max at VGA

resolution

July 2007

Rev 2

1/35

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to

change without notice.

www.st.com

12 3 4 5 6 7...35

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