VV6444C001 Ver la hoja de datos (PDF) - Vision

Número de pieza

componentes Descripción

Fabricante

VV6444C001

Low Cost Digital Camera (LCDC) Chipset

Vision 

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0, March 2000

STV0680A + VV6444/6410/6500

1.3 Sensor choices

The following sensors are supported:

Sensor

Resolution

Sensor supply

voltage

VV6444

CIF (352 x 288)

5v

VV6410

3.3v

VV6500

VGA (640 x 480)

Table 2 : Sensor choices with STV0680/STV0680A

1.4 Key system features

The key features of a typical camera based on the STV0680A chipset are as follows:

1.4.1 Image features (STV0680A-002)

• Support for 5V or 3.3V CIF resolution sensor (VV6444 or VV6410) - 352 x 288 pixels

• Support for 3.3V VGA resolution sensor (VV6500) - 640 x 480 pixels

• 80 picture storage capacity possible for CIF, with 64MB memory

• 26 picture storage capacity for VGA, with 64MBit memory

• A greater number of images can be stored when ‘Low’ resolution mode is enabled (e.g. 80 QCIF images with 16Mbit memory,

106 QVGA images with 64Mbit memory). See Table 4 and Table 5.

• Automatic anti-flicker exposure and gain control

1.4.2 Image features (STV0680-001)

• Supports 5V CIF resolution sensor (VV6444) - 352 x 288 pixels.

• 20 picture storage capacity possible for CIF with 16MB memory.

• 80 picture storage capacity possible for QCIF with 16MB memory.

• Automatic anti-flicker exposure and gain control

1.4.3 User features on camera

• Self-timer mode allows a picture to be captured after several seconds.

• Twin 7 segment LCD panel supported - showing number of pictures left, and modes.

• Picture counter helps the user to know how much memory is left.

• Un-tethered ‘Continuous’ mode allows capture of image sequences for storage in memory and subsequent download to PC.

• Piezo buzzer indicates a number of useful events to the user, e.g. whether enough light is present for picture capture, etc.

• Indicator LED.

1.4.4 User features on PC software

PC software allows a number of features, including fast download of thumbnail images for picture selection, and automatic

detection and correction of sensor defects. Table 3 clarifies the driver compatibility available, including:

• TWAIN driver to suit all TWAIN compatible imaging applications

• Video for Windows driver for tethered video mode (through USB), available at all resolutions, with fastest framerates at QCIF

resolution

CDSTV0680F-C

8

STV0680F_contents.fm

Commercial in confidence

Share Link: