Datasheet > STV0681A

STV0681A

更新时间： 2024-11-13 23:35:27

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		数码相机
页数	文件大小	规格书
44页	351K
描述
DUAL MODE DIGITAL CAMERA CHIPSET

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中文翻译

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数据手册

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STV0681A 数据手册

STV0681

DUAL-MODE DIGITAL CAMERA CO-PROCESSOR

DESCRIPTION

● Quick Power Down (by holding Mode Button).

STMicroelectronics Imaging Division has produced

the camera co-processor STV0681 which, used

with CIF/VGA sensors as part of a low cost dual-

mode camera chipset, allows a new line of low cost

cameras or toy products to be brought to the

market. STV0681 is a mask ROM version of

STV0680B, programmed with v3.00 Firmware.

● “Delete Last” Function

Audio Record and Playback

The enhanced features included in STV0681 allow

audio memos to be recorded at a sampling rate of

11kHz, by adding a microphone and comparator

chip, and by utilizing the pre-amplifier included in

CIF/VGA sensors such as VV6411 and VV6501

respectively.

FEATURES

ST have maintained the standard features already

available in the successful STV068B chipset,

including:

These sounds can be uploaded to the PC over USB

or RS232, and played back using a Software

application developed by the OEM using the SDK.

Demonstration PC software with source code is

available with the Evaluation Kit (EVK). With

suitable OEM software, the camera could even be

used to record comments about pictures or video

clips in a “dictaphone” fashion, with the audio

commentary played back when viewing the

pictures/video.

● Support for VV6411 (CIF) and VV6501 (VGA)

CMOS imaging sensors.

● Support for SDRAM sizes 16MBit (up to 20

CIF images) or 64Mbit (up to 80 CIF or 26

VGA images).

● Low resolution “economy” mode allows for

more images to be stored.

Recorded audio sounds can also be played back on

the camera, with the addition of an amplifier chip

and speaker or headphone socket.

● High frame rate web cam (tethered video)

over USB.

● Audio record/playback and “Delete Last”

function

By auto-detecting hardware, STV0681 will only

enable these additional functions if audio hardware

is fitted. Actual hardware implementation is the

subject of a separate STV0681 Reference design

(see Chapter 10).

● Custom sounds playback (e.g. “Talking” or

“Musical” camera)

● Support for an OEM Flashgun module

● Automatic anti-flicker exposure control.

● Image up load over RS232 or USB.

Evaluation Kit and Reference Design

Evaluation kits are available for STV0681 features.

Precise design guidelines are available from ST as

a reference design manual (see Chapter 10).

● Driver support for Win98/Win2k/WinME and

MacOS 8.6/9.0/9.1.

● Continuous capture while untethered (except

when Flashgun enabled) and downloading to

AVI file format

Note: Simultaneous audio record and

continuous video capture is not possible.

● Power-saving “stand-by” mode which

maintains memory contents.

● Simple user interface including 2 buttons,

status LCD display, and buzzer.

● Evaluation Kit (EVK) available.

● Software Development Kit (SDK) allows OEM

PC Software applications to be written.

March 2003

ADCS7283313C

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中文翻译

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与STV0681A相关器件

型号	品牌	获取价格	描述	数据表
STV0684	STMICROELECTRONICS	获取价格	Digital Camera Processor
STV0705	ETC	获取价格	General-Purpose Photodiode Array
STV0900	STMICROELECTRONICS	获取价格	Multistandard advanced dual demodulator for Satellite Digital TV and Data services set-top
STV0903	STMICROELECTRONICS	获取价格	Multi-standard advanced demodulator for satellite digital TV and data services set-top box
STV0903BAB	STMICROELECTRONICS	获取价格	Multi-standard advanced demodulator for satellite digital TV and data services set-top box
STV0974	STMICROELECTRONICS	获取价格	Mobile Imaging DSP
STV0974/TR	STMICROELECTRONICS	获取价格	SPECIALTY CONSUMER CIRCUIT, PBGA56, 6 X 6 MM, 1.20 MM HEIGHT, LEAD FREE, TFBGA-56
STV0974E	STMICROELECTRONICS	获取价格	Mobile Imaging DSP
STV0974E/TR	STMICROELECTRONICS	获取价格	SPECIALTY CONSUMER CIRCUIT, PBGA56, 6 X 6 MM, 1.20 MM HEIGHT, LEAD FREE, TFBGA-56
STV0974ETR	STMICROELECTRONICS	获取价格	Mobile Imaging DSP

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