Datasheet VV6500C001, VV6444C001, VV6410C036, STV-DCA-VGA-E01, STV-DCA-CIF-E01 Datasheet (Vision)

...

Download

Page 1

STV0680A + VV6444/6410/6500

Low Cost Digital Camera (LCDC) Chipset

PRELIMINARY

DESCRIPTION

STMicroelectronics (ST), Imaging Division (formerly VLSI VISION Ltd.), has utilised its extensive experience in designing imaging sensors for the digital still camera market to develop chipsets for modular systems which wi ll provide the core of a highly cost-competitive new standard in consumer digital stills cameras (DSC).

The Low Cost Digital Camera chipsets from ST, incorporating a CMOS imaging sensor and STV0680A co-processor (formerly DCA1 ) enable camera manufacturers to offer an end product which is genuinely price competitive with traditional ‘point and shoot’ film-based cameras.

The chipset provides the basis of an easy-to-use, user friendly camera, which will be equally adaptable for use by children and adults for stills photography or dual-mode use (i.e. Digital stills while untethered, and videoconferencing from the same camera).

Incorporating a wide range of features, the STV0680A chipset offers exc ep tion al performance at a very co mp etit iv e price point. ST’s aim is to enable manufacturers to offer fully functional DSC products to the end consumer for between $50 and $100. An evaluati on k it (EVK) a nd re fere nce des ig n manual are availab le, a s wel l as sta ndard TWAIN and Video for Windows drivers. Alternative ly, a software development kit (SDK) allows access to ST colour processing algorithms under licence, to develop OEM software.

The chipset incorporates ST’s high performance VV6444/ 6410 CIF (352 x 288 pix el) or VV65 00 VGA (640 x 480 pi xel) resolution CMOS sensors. The complete camera will have 20 picture storage capacity for CIF resolution or 80 for QCIF resolution, when using 16MBit memory. When using 64MBit memory, it will have 26 picture storage capacity for VGA resolution or 106 for QVGA resolution. A standby mode which allows full picture retention at extremely low system power consumption gives a battery life of up to several months.

An example upload and colour processing time for a CIF image to the PC is 0.3 seconds when the USB interface is used, and the chipset also offers a high frame rate tethered USB video mode (dependant on PC and USB loading).

The chipset supports a 2x 7-segment display showing number of pictures remaining, a low battery indicator, and operation mode, as well as a buzzer indicating picture taken, camera full, and self-timer countdown.

A CMOS solution gives manufacturers inherent benefits, providing a highly integrated compact solution which has a low system cos t, is straightforward to implement , and has low power consumption, giving long battery life.

KEY FEATURES

• CIF (352 x 288) or VGA (640 x 480) resolution sensor

• Using 64MBit memory, 80 picture storage capacity in camera (CIF), 26 (VGA), or 320 (QCIF).

• Using 16MBit memory, 20 picture storage capacity, in camera (CIF), or 80 (QCIF)

• USB/RS232 inte rfa ce opti on s

• Evaluation kit available

• Low power consumption (typically 75mA) for complete camera and low system cost per pixel

• High speed picture upload with USB

• USB tethered video mode gives a QCIF resolution videoconferencing camera with VfW support

• ‘Continuous’ mode for capturing image sequences (while untethered) and downloading to AVI file format

• Memory refresh allows picture retention when camera is in standby mode with very low current consumption

• TWAIN/Video for Windows driver support

• Numeric LCD panel supported

• Colour processing and pixel defect detection/correction software available under license as SDK for development of OEM software. The license to use the colour algorithm (embedded in the PC driver software) is included in the price of the chipset.

PRODUCT FORMATS

Chipsets: For manufacturers wishing to design their own cameras ST offers chipsets combining the colour CMOS sensor with a companion processor.

An evaluation kit, including PC demo software, and a comprehensive reference design manual are available, including schematics and bills of materials.

Modules modules are available to the basic specification outlined, but geared to the customer’s individual requirements, subject to commercial agreement with ST.

: For high volume OEM companies, lensed camera

SOFTWARE

Driver software is available to support both USB and RS232 interface, included in TWAIN and Video for Windows drivers (VfW through USB only, WIN98). An AVI creator application allows creation of video files from untethered ‘continuous’ mode images.

ST colour processing and defect detection/correction software is supplied under licence agreement, as part of a Software Development Kit (SDK). This runs on the host PC

under either Windows95

or Windows98TM .

CDSTV0680F-C: Rev 3.0; Mar.2000

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

Commercial in Confidence

Page 2

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

Table of Contents

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Digital camera chipset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

1.2 Co-processor choices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Sensor choices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

1.4 Key system features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

1.4.1 Image features (STV0680A-002). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.4.2 Image features (STV0680-001). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.4.3 User features on camera. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

1.4.4 User features on PC software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

1.4.5 Power management features and USB compliance . . . . . . . . . . . . . . . . . . . . . . . . . .9

1.4.6 General features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

2. Detailed features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1 Sensor type and image formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1.1 VV6444 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1.2 VV6410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.1.3 VV6500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2 User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.2.1 Push buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.2.2 LED indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.2.3 Picture counter using 2 x 7 segment display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.2.4 Piezo buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.3 Battery Level Detect and USB auto-switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4 PC interface options and software support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 2

2.4.1 USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4.2 RS232 (not available on STV0680-001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5 Anti-flicker exposure and gain control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

3. Camera modes of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.1 Standby mode (or USB suspend mode). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.1.1 Entering this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1.2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1.3 Exiting this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.2 ‘Snapshot’ mode (in High or Low resolution) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.2.1 Entering this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2.2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2.3 Exiting this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.3 ‘Continuous Capture’ mode (in High or Low resolution). . . . . . . . . . . . . . . . . . . . . . . .1 5

3.3.1 Entering this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.3.2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.3.3 Exiting this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.4 Self-timer Mode (in High or Low resolution) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 5

3.4.1 Entering this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.4.2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.4.3 Exiting this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.5 ‘Clear camera’. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.5.1 Entering this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.5.2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

CDSTV0680F-C

This version: ST VIBU internal use only

CDSTV0680F-CTOC.fm

Commercial in confidence

Page 3

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

3.5.3 Exiting this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

3.6 ‘Change resolution’. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.6.1 Entering this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.6.2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.6.3 Exiting this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

3.7 Tethered USB Video mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

3.7.1 Entering this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.7.2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.7.3 Exiting this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

3.8 Powering the camera off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.8.1 Entering this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.8.2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.8.3 Exiting this mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

4. STV0680A hardware interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1 STV0680A pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2 Sensor interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

4.3 Memory interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.3.1 SDRAM Current consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.3.2 SDRAM interface timing requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.3.3 SDRAM refresh Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.3.4 SDRAM initialisation Period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 0

4.4 USB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

4.5 UART module for RS232 interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

4.5.1 RS232 Physical interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

4.5.2 UART Module Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.6 Power management and battery type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

4.6.1 Power switching to USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

4.6.2 Switched sensor supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.6.3 Battery type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.7 Quartz Crystal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

4.8 Numeric LCD interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

4.8.1 LCD types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

4.8.2 LCD interface pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.9 Switches and LED’s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.9.1 MODE push button and SHUTTER push button: GPIO0 and GPIO1 . . . . . . . . . . . .21

4.9.2 Input to select between 50 and 60Hz flicker frequency: GPIO3 . . . . . . . . . . . . . . . .21

4.9.3 LED indicator output: GPIO5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

4.9.4 Unused pins: GPIO2, 4, 6, 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5. PC software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

5.1 Driver support available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.2 Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.3 OEM software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

5.4 Software Development Kit (SDK). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.4.2 API Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

6. Customisation options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

7. Detailed chipset specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

7.1 Typical camera specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

CDSTV0680F-C

This version: ST VIBU internal use only

CDSTV0680F-CTOC.fm

Commercial in confidence

Page 4

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

7.2 STV0680/STV0680A companion processor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

7.3 VV6444 Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

7.4 VV6410 and VV6500 sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7.5 Typical current consumption of complete camera . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

7.5.1 Using VV6444 (sensor operates at @ 5V DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.5.2 Using VV6410/6500 (sensor operates at @ 3.3V DC) . . . . . . . . . . . . . . . . . . . . . . . 33

8. STV0680A Pin descriptions and Package Information . . . . . . . . . . . . . . . . . . . . . . . 34

8.1 STV0680A Pin Listing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8.2 STV0680A pinout diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

8.3 STV0680A Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

9. Schematics and example parts list for complete camera design . . . . . . . . . . . . . .40

9.1 Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

9.2 Example Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10. VV6444 Sensor Pinout and Package Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1 VV6444 Pin Listing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

10.2 VV6444 Pinout Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

10.3 VV6444 Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

11. VV6410 Pinout information and package dimensions . . . . . . . . . . . . . . . . . . . . . . 50

11.1 VV6410 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 0

11.2 VV6410 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

11.3 VV6410 package Details (36pin CLCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

12. VV6500 Pinout and pin descriptions (48pin LCC package) . . . . . . . . . . . . . . . . . . 54

12.1 Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

12.2 VV6500 pin descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

12.3 VV6500 package Details (48 pin LCC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

13. Evaluation kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

14. Ordering details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

CDSTV0680F-CTOC.fm

CDSTV0680F-C

Commercial in confidence

This version: ST VIBU internal use only

Page 5

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

CDSTV0680F-CTOC.fm

This version: ST VIBU internal use only

CDSTV0680F-C

Commercial in confidence

Page 6

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

Revision notes

The following changes have been included since revision 2.00.

• Removed all schematics and only show example parts list, instead referring to respective reference designs (in Section 9.)

• Documentation now refers to STV0680A which supercedes STV0680 - see Section 1.2 for explanation.

• Clarified which STV068 0/680A variants and w hich PC operating sy stems offer VfW support a nd RS232 support, offeri ng VfW support - see Table 3.

• Updated STV0680A pin descriptions (pinout not changed) in Section 8.

• Confirmed user interface functionality in Section 3. and added Table 6 to show modes of operation and button functions.

• Section 3.: Images ca ptured in both ‘Hi gh’ and ‘Low’ resol ution can be st ored in camera memory at the same time. The refore there is no need for images stored in memory to be cleared before changing image resolution.

• Changed IR filter recommendation, see section Section 2.1.1.

• Added approximate shutter speeds, in

• Adjusted sensor image array sizes in Section 7. to the correct sizes.

• Updated ordering infor mation in Section 14.

• Updated current consumption information of STV0680, STV0680A, VV6444, and complete camera, see Section 7.2 and Section 7.5.

Table 10

• Added VfW framerates for STV0680A (Section 2.1).

• New order number STV0680A-002

This version: ST VIBU internal use only

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 7

PRELIMINARY

(

)

(

)

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

1. Introduction

1.1 Digital camera chipset

This document describes the features and functionality of a CMOS chipset, comprising an STMicroelectronics (ST) CIF or VGA resolution sensor and an STV0680A companion processor (formerly known as DCA1: Digital Camera ASIC 1), as well as outlining what peripheral components are required/supported in order to complete a camera using the chipset. Such a camera is particularly suited to dual-mode digital stills or toy applications.

In stills mode, the camera stores r aw im ag e d ata in memory. The c am era carries out no colour proc es sing, ensuring its s im pli ci ty and low cost. Subsequent download of raw data to a PC for processing is done through an RS232 (not STV0680-001) or USB interface, through demo software, a TWAIN driver, or OEM custom application. The license to use the colour algorithm (embedded in the PC driver software) is included in the price of the chipset.

A video option is pr ovide d, when te ther ed throu gh US B, which c an al low fo r Video f or Wind ows appl icati ons, a nd ‘vi deo cl ips’ c a n be recorded while untethered by continuously capturing images while in ‘Continuous’ mode, then downloaded to the PC for playback, using software to create an AVI file.

Precise design guidelines are available from ST as a reference design (see Section 9.) A PC software development kit (SDK) is available from ST, to interface to the camera and provide the basis for developing a custom software application for stills and/or video, which includes colour processing software.

Push buttons:

Shutte r

Mode

Optional

LED Indicator

Optional

2 x 7 seg. LC D

Low cost lens

16MBit or 64MB it

SDRAM

Transceiver

Circuit

Power

ement

Mana

Circuit

RS232 interface to PC

USB interface to P C

6-9V Battery e.g., PP 3 ,

4-6 x AA, AAA, etc

CMOS Sensor:

VV6444/6410

CIF

VV6500

VGA

LCD

GPIO

Driver

memor

I/F

Sensor data

Sensor clock Optional

Piezo

Buzzer

Mini

speaker

Switched sensor supply (5V for VV6444, 3v3 fo r VV6410/6500

Buffer Amp

Sensor

I/F

PWM

Audio I/F

12MH z XTAL

STV0680A

RS232

I/F

USB

I/F

Detect Low

Batter

3v3 supply (STV0680A

Figure 1 : Typical camera system block diagram

1.2 Co-processor choices

The following co-processor choices are available. The STV0680A supercedes STV0680, and uses different silicon and different firmware compared to STV0680. Functionally it is exactly the same as STV0680 except that it supports a VfW driver. In addition, a new firmware variant means that the STV0680A also supports VV6410 and VV6500 sensors, as well as 64Mbit memory size.

The firmware variant of STV0680 denoted by STV0680-001 does not support RS232 interface.:

Co-

processor

Sensors

supported

SDRAM

supported

USB

interface

RS232

interface

Video for Windows

support

This version: ST VIBU internal use only

STV0680-001 VV6444 16Mbit onl

Yes No No

STV0680A-002 VV6444/6410/6500 16Mbit or 64Mbit Yes Yes Yes

Table 1 : Product choices

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 8

PRELIMINARY

)

(

)

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

1.3 Sensor choices

The following sensors are supported:

Sensor Resolution

Sensor supply

VV6444 CIF (352 x 288 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 (

• 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

STV0680A-002

STV0680A + VV6444/6410/6500

voltage

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

• A greater numbe r of images can be stored when ‘Low’ resolution mode is enabl ed (e.g. 80 QCIF images with 16M bit 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 (

• 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

STV0680-001

)

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 ‘Conti nuo us’ mode a llo ws captu re of ima ge sequ ences for storag e in memory and sub seque nt dow nload 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.

This version: ST VIBU internal use only

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 d river for tet hered video m ode (throug h USB), a va ilab le at all res olutions , with f as test fram erates at QCIF resolution

CDSTV0680F-C

STV0680F_contents.fm

Commercial in confidence

Page 9

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

• AVI video file creation from image sequences captured in ‘continuous’ mode

Interface type:

PC Operating system:

STV680-001 Not available TWAIN

STV0680A-002 TWAIN TWAIN, VfW

Custom OEM softwa re can be de velop ed by usin g t he SDK (fo r SDK a vaila bility , con tact S T), t o uplo ad thu mbnai ls/st ill im ages or ‘continuous’ images, e.g. for AVI file creation.

Win9x, WinNT4, Win2k

RS232

Table 3 : Driver choices

USB

Win98 and Win2k only

March 2000

1.4.5 Power management features and USB compliance

• Picture retention with extremely low power operation, which appears to the user as if the camera is “switched off”.

• Auto power-off after 30sec with no user activity

• Operates from 6-9V battery, although system voltage is 5V or 3.3V, dependant on sensor.

• Low battery detection

• Dependant on ha rdware configura tion, switc h-over to USB powe r supply is su pported, to all ow the devic e to operate wi th low batteries or without batteries, when connected to USB.

• Full USB compl iance re quirement s are lis ted in the USB spe cification, however , in a ca mera d esigned u sing this c hipset, the following must at least be inclu ded: (a) an SDRAM with sufficiently low self-r efresh current, (b) USB inrush protectio n circuitry, and (c) (in the case of VV6444 only) a switched 5V sensor supply is used, to maintain sufficient supply voltage to the 5V sensor. See Section 9. for further details.

1.4.6 General features

• High speed picture download over USB

• ST Colour processing algorithms available under license (as part of drivers/SDK)

• USB or RS232 serial interface options, and VfW / TWAIN driver support.

• Customisation of STV0680A is possible to vary the features described in this document, subject to commercial agreement with ST, see Section 6.

This version: ST VIBU internal use only

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 10

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

2. Detailed features

2.1 Sensor type and image formats

The sensor type is auto-detected by STV0680A, which ensures that the correct sensor timing is enabled, and the correct image resolutions are enabled, as shown in Table 4.

For stills photo grap hy , ‘ High’ or ‘Low’ reso lu tion m od e can be selected, t o give CIF or QCIF pi ct ures from a CIF sens or, an d VGA or QVGA from a VGA sensor (see Table 4 and Section 3.7). Reduced resolution allows for storage of more images. Images captured in both ‘High’ and ‘Low’ resolution can be stored in camera memory at the same time. Therefore there is no need for images stored in memory to be cleared before changing image resolution.

Where USB is connected, the host PC software (through a Video for Windows driver) can activate tethered video mode, regardless of the user inputs to the camera buttons. In this case, the image resolution is controlled by the PC driver..

Sensor

VV6444/

6410

Max. no. of

Sensor

Image Size

Resolution

mode

Final Image Size

images

stored in

16MBit

memory

CIF 352 x 288 High CIF 352 x 288 20 80 9 frames/sec

Low QCIF 176 x 144

(Subsampled)

80 320

Max. no. of

images

stored in

64MBit

memory

(see notes)

Approximate

VfW framerate

(*)

25 frames/sec

VV6500 VGA 640 x 480 High VGA 640 x 480 (6) 26 2 frames/sec

Low QVGA 320 x 240

(Subsampled)

Table 4 : Image modes supported (

*Notes:

1. VfW framerate is dependant on PC performance and USB bus loading

2. Not all image sizes are supported by all STV0680/680A variants - see Table 2 for clarification.

3. A CIF camera with STV0 680A-002 and 64Mbit SDRAM can stor e up to 320 im ages b y using QC IF mode. Whe re >99 im ages are still available, the LCD display will remain at 99. Where (no. of images available) <99, the LCD display will show the number of images available, as is the case with all other modes.

(24) 106 12 frames/sec

STV0680A-002

)

Max. no. of

Sensor

Image

Size

Resolution

mode

Final Image Size

images

stored in

16MBit

memory

VV6444 CIF 352 x

288

High CIF 352 x 288 20

Low QCIF 176 x 144

(Subsampled)

This version: ST VIBU internal use only

Table 5 : Image modes supported (

STV0680-001

)

2.1.1 VV6444

VV6444 is a CIF resolution, 5V CMOS imaging sensor. A brief specification is shown in Section 7. VV6444 has the same functionality and array size as the un-microlensed VV6404 sensor, but has a microlensed array and different colour characteristics. Although the VV64444 and VV6404 are electrically identical, the STV0680 and STV0680A use the correct

CDSTV0680F-C

STV0680F_contents.fm

Commercial in confidence

Page 11

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

settings for the VV6444 colour set. This means that a VV6404 should not be used with STV0680/680A. For IR filter design, the best choice filter follows the GS0034 dielectric stack filter specification, which is available from ST. An

alternative, although not optimal filter, would be Schott S8612 doped glass, also sold as CM500.

March 2000

2.1.2 VV6410

VV6410 is a CIF resolution, 3.3V CMOS imaging sensor. A brief specification is shown in Section 7. A dual design to support VV6444 and VV6410 is not possible, since VV6410 is a 3v3 sensor. A dual footprint for VV6410 and

VV6500 is not possible since the package types differ, however, the same support circuit is used. See Section 9.

2.1.3 VV6500

VV6500 is a VGA resolution, 3.3V CMOS imaging sensor. A brief specification is shown in Section 7. A dual design to support VV6444 and VV6500 is not possible, since VV6500 is a 3v3 sensor. A dual footprint for VV6410 and

VV6500 is not possible since the package types differ, however, the same support circuit is used. See Section 9.

2.2 User interface

The user interface supported by STV0680A comprises of user controls, audible signals and visual displays.

! Note

The precise functionality of the version shown here is close to the actual functionality available in STV0680A.

user interface

may vary from that of existing demonstration units. The

2.2.1 Push buttons

The following are typical of the type of funct ions whic h are supported by the chipset. Th ese functio ns are achie vable wit h no more than 2 push buttons.

1. Mode button (Wake-up/Switch between modes) when the camera is to be used for taking pictures, or (1.2) to switch between modes of operation shown in Section 3..

2. Shutter button (Shutter/confirm action): This button allows the user to take a picture or confirm an action, as shown in Section 3.

The modes of operation are described in Section 3.

: This button al lows th e user (1.1) t o wa ke the c amera u p from sta ndby mode

2.2.2 LED indicator

An LED display camera status, i.e. to show that the camera is in ‘Snapshot’ mode.

2.2.3 Picture counter using 2 x 7 segment display

STV0680A stores a picture counter value, which shows how many images can still be captured. STV0680A supports a 2x7 segment LCD panel. In ‘Snapshot’ mode and continuous capture mode, this LCD panel displays the number of pictures still available, which is useful to identify when the user is approaching the maximum number of images which can be stored (see Table 4 and Table 5). It is possible to clear the images stored in memory, in order to continue taking pictures, as shown in Table

6. In other modes, this LCD panel shows displays a 2-character code as shown in Table 6, which helps the user to navigate around the modes.

Note

: A CIF camera with STV0680A-002 and 64Mbit SDRAM can store up to 320 images by using QCIF mode. Where >99 images are still available, the LCD display will remain at 99. Where (no. of images available) <99, the LCD display will show the number of images available, as is the case with all other modes.

This version: ST VIBU internal use only

For suitable numeric LCD panel types, see Section 4.8.

2.2.4 Piezo buzzer

An on-chip Pulse Width Modulator (PWM) on STV0680A is used to generate buzzer sounds to signal certain events. The following are typical of the type of events which are indicated by the buzzer, and each has its own distinctive sound:

1. Camera has been ‘Woken up’ from standby mode (either b y th e us er pres s ing a b u tton , by re-connecting the power source, or by connecting a USB/RS232 connection).

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 12

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

2. Camera has been ‘gone to sleep’ i.e. moved into standby mode. Pictures are retained in memory.

3. Picture has been successfully taken after the user presses the capture button.

4. Picture has NOT been taken after the user presses the capture button. This indicates to the user that there is insufficient light, or that the exposure control was not ready due to a rapid change of lighting in the scene.

5. Picture has NOT been taken after the use r p r ess es th e c apture button, due to picture counter having reached the m axi mum number of images. The user has the chance to zero the counter if desired.

6. End of continuous capture in un-tethered ‘Continuous’ mode, due to memory full.

7. Self-timer activated and counting down.

March 2000

STV0680A + VV6444/6410/6500

2.3 Battery Level Detect and USB auto-switch

An on-chip battery level detector on STV0680A detects when the battery voltage falls below a threshold. This threshold is determined by the designer, dependant on the perception of what remains as ‘acceptable’ image quality as the battery voltage falls. The chos en th res hol d level is determi ne d by a resistor va lu e, as s how n i n Se ction 9. Where no USB has been de tec ted, the LCD display flashes, which indicates that the battery is low. Where a USB connection has been detected, the camera sources power from USB, if certain additional hardware is fitted.

Note

: It may be a requirement of certain USB compl iance tests tha t such additi onal ha rdware is in cluded in the camera design, in order to enable the camera to switch to supply from USB and hence report back to the PC while connected to the USB bus without a battery.

2.4 PC interface options and software support

Either USB Interface (full speed 12Mbit/sec max.) or RS232 interface (115.2Kbaud) is supported by the chipset, with driver software available from ST for both. The interface type is auto-detected by the chipset. PC software can be one of the following (exact compatibility is clarified in Table 3):

1. Simple image upload demonstration software supplied by ST, allowing uploading of stills or ‘continuous’ images. This software should not be supplied as an end-user product.

2. TWAIN driver to suit all TWAIN compatible imaging applications

3. Video for Windows driver for tethered video mode (USB only)

4. Custom end-user soft ware developed by O EM u sin g SD K (for SDK a vailability, contact ST). The SDK is sup pl ied by ST as a 32-bit DLL f ormat, running on Windo w s 98, a nd ac cess ed throu gh a do cume nted s oftw are i nterface. This pro vide s the b asis for developing a custom software application for uploading stills and/or video. See Section 5. for further details.

2.4.1 USB

Complete images (displayed as either thumbnails or in full resolution), or the entire SDRAM contents (e.g. for uploading continuously captured image sequences, recorded using ‘Continuous Capture’ mode) can be downloaded through USB, and USB connection also allows for tethered video mode to be activated by the USB driver.

Thumbnail image download is extremely fast for the entire memory contents in the camera. Once a picture is selected for download, full image download takes approximately 0.15 seconds per image for a CIF image (0.6 seconds for a VGA image), plus post processing time per image.

For USB interface details, see Section 4.4. Note

: Actual USB download and post processing time also depends on PC performance and USB bus loading

2.4.2 RS232 (not available on STV0680-001)

Thumbnails of images, complete stored images, or the entire SDRAM contents can be downloaded through RS232, but tethered video is not supported.

Once a picture i s selec ted for down load, full im age d ownloa d take s a pproxi matel y 10 s econ ds pe r imag e for a CIF ima ge (arou nd 30 seconds for a VGA image), plus post processing time per image (of the order of 1 second approximately).

This version: ST VIBU internal use only

For RS232 interface details, see Section 4.5. Note

: Actual post processing time after RS232 download also depends on PC performance

2.5 Anti-flicker exposure and gain control

The chipset operates automatic exposure and gain control for either 50Hz or 60Hz mains-driven indoor lighting, using the same 12MHz crystal. This improves picture quality by selecting a set of exposure values which minimise ‘flicker’ effects. Detection of

CDSTV0680F-C

STV0680F_contents.fm

Commercial in confidence

Page 13

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

the mains frequency is dependant on the status of the GPIO3 pin, which can be achieved by population of a PCB link at a late stage in production, once the country of destination is known, without the need to change the crystal frequency.

The auto exposure and gain algorithm is always enabled during ’Snapshot’/self-timer/continuous mode. When the shutter button is pressed in ‘Snapsh ot’ mode, th e ch ipset capt ures an im age if th e expos ure and gain val ue has re ached a suitab le valu e for th e current scene. If the light detected has suddenly changed, the camera may emit an audible tone to indicate that more time is required to reach the correct exposure target. In ‘Snapshot’ mode the chipset only captures the image data if sufficient light is present in the image. In continuous capture mode, the chipset captures images regardless of whether enough light is present.

Note

: Auto-detect of the mains lighting frequency is not currently supported.

March 2000

STV0680F_contents.fm

This version: ST VIBU internal use only

CDSTV0680F-C

Commercial in confidence

Page 14

PRELIMINARY

(

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

3. Camera modes of operation

Mode

Standby

mode

’Snapshot’

mode

Continu-

ous cap-

ture

Self timer Takes one pi cture after a 10 second co unt-

’Clear

camera’

If shutter button pressed while in

this mode

No function - pictures cannot be taken in

standby mode

Takes one picture, if sufficient light availa-

ble, then returns to ‘Snapshot’ mode

Takes a picture every 80mS while button

pressed, regardless of light available, then

returns to ‘Snapshot’ mode

down, if sufficient light available, then

returns to ‘Snapshot’ mode

(1st press:)

Prompts user to

clear camera

2nd press:) Clears all

ima

es stored in cam, then returns to

era

‘Snapshot’ mode

pressed while in this

Moves to continuous cap-

Moves to self timer mode Returns to

Moves to ‘Clear camera’

Moves to ‘Change resolu-

March 2000

If mode button

mode

Wakes up camera into

‘Snapshot’ mode

ture mode

mode

tion’ mode (see note)

STV0680A + VV6444/6410/6500

If no further

action

Remains in

standby mode

Stays in ‘Sna p-

shot’ mode for

30 seconds then

moves to

standby mode

‘Snapshot’ mode

after 5 seco nds

LCD

displays

(Display is

blank)

Number of pictures still avail-

able to take

Number of pictures still avail-

able to take

“St”

“CL”

’Change

resolution’

Changes resolution

High to Low) and return s to ‘Snapshot’

(i.e. Low to High, or

mode

Returns to ‘Snapshot’

mode

If currently in

Low Resolu-

tion: “Hr”

If currently in

High resolu-

tion: “Lr”

Table 6 : Camera modes

Note: In STV0680-001, pressing the Mode button while in ‘Clear Camera’ mode only moves onto ‘Change resolution’ mode if the camera has no images stored. This is because in STV0680-001, mixed resolutions (i.e. ‘High’ and ‘Low’) cannot be stored at the same time. In STV0680A-002, mixed resolutions can be stored at the same time.

The above modes are interrupted by the detection of a USB or RS232 connection. This is to allow for the possibility that the PC driver takes control of the chipset (e.g. when starting a VfW application through USB).

3.1 Standby mode (or USB suspend mode)

3.1.1 Entering this mode

The camera enters st and by mo de aut omati cally af ter 3 0 secon ds of inacti vity if not tethere d to USB, or w hen USB suspe nd mode is activated by the PC driver.

3.1.2 Description

This allows image data to be stored in memory with extremely low power consumption, which appears to the user as if the camera is switched ‘off’, since there is no LCD display or LED lit. In VV6444-based designs, STV0680A powers off the sensor completely, in VV6410/6500 based designs, the sensor is placed in suspend mode, and the camera enters a mode where only SDRAM refresh is carried out. The shutter button is inactive in standby mode.

This version: ST VIBU internal use only

3.1.3 Exiting this mode

Wake-up from standby mode is achieved by any of the following means:

1. Pressing the ‘mode’ button (only if no USB detected)

CDSTV0680F-C

STV0680F_contents.fm

Commercial in confidence

Page 15

PRELIMINARY

)

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

RS232 receives start bit from host software

3. USB connection detected

4. If in USB suspend mode, U SB driver re-starts communications with the camera as per USB specification

(only if no USB detected

March 2000

3.2 ‘Snapshot’ mode (in High or Low resolution)

3.2.1 Entering this mode

This is the default mode on wake-up when not tethered to the PC, i.e. pressing the Mode button while in standby mode, or powering up the camera. On entering this mode, the current resolution (i.e. ‘Hr’ or ‘Lr’) is displayed briefly, and there is a brief pause (approx. 1second) during which pictures cannot be taken. This is to allow the Auto-exposure and Gain control to settle. The LCD then displays the number of pictures still available.

3.2.2 Description

Using the shutter button, ‘Snapshot’ mode allows single pictures to be grabbed using the capture button. The LCD displays the number of pictures still available. Auto-exposure and gain are continuously enabled. The camera grabs an image when the capture button is pressed, if sufficient light is available, the exposure and gain algorithm is settled, and picture counter has not

reached it s

maximum. Image data is stored in memory and picture counter is decremented.

3.2.3 Exiting this mode

After 30 seconds of non-activity, while not tethered to the PC, the camera goes into Standby mode.

3.3 ‘Continuous Capture’ mode (in High or Low resolution)

3.3.1 Entering this mode

Enabled using the mode button (from ‘Snapshot’ mode, press once).

3.3.2 Description

The LCD displays “Ct”. Auto-exposure and gain are continuously enabled. While the shutter button is pressed, the user can activate continuous capture at approx. 12.5 frames per second, to allow recording of a ‘video’ sequence, whether or not the camera is tethered to the PC, and regardless of whether enough light is available. The picture counter is decremented once per frame. The continuous image data is stor ed in memor y and can then be downloa ded to the PC. Once the memory is fu ll, the user is alerted by an audible tone. It is possible to store a mixture of still images and ‘Continuous’ images in memory.

3.3.3 Exiting this mode

After 5 seconds of non-activity, or after releasing the shutter button, the camera returns to standby mode.

3.4 Self-timer Mode (in High or Low resolution)

3.4.1 Entering this mode

Enabled using the mode button (fro m ‘Snapshot’ mode, press twice).

3.4.2 Descript ion

The LCD displays “St”. Auto -exposure and gain are co ntinuous ly enable d. When the shut ter button is pressed, t he camera cou nts down 10 seconds, then grabs an image, if sufficient light available and exposure and gain algorithm settled, and picture counter

has not reached its

maximum. Image data is stored in memory and picture counter is decremented.

This version: ST VIBU internal use only

3.4.3 Exiting this mode

After 5 seconds of non-activity, or after the timer has counted down 10 seconds, the camera returns to standby mode.

3.5 ‘Clear camera’

3.5.1 Entering this mode

Enabled using the mode button (from ‘Snapshot’ mode, press three times).

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 16

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

3.5.2 Description

The LCD displays “CL”. Pressing shutter button twice will clear all the images in the camera.

3.5.3 Exiting this mode

After 5 seconds of non-activity, or after the camera has been cleared, the camera returns to standby mode.

3.6 ‘Change resolution’

3.6.1 Entering this mode

This is enabled using the mode button (from ‘Snapshot’ mode, press four times). Note: In STV0680-001, the images stored in memory must be cleared before this mode can be entered. This is because in

STV0680-001, mixed resolutions (i.e. ‘High’ and ‘Low’) cannot be stored at the same time.

3.6.2 Description

The LCD displays the target resolution to which the camera can be changed, i.e. if in High resolution “Lr” (Low resolution) is displayed, if in Low resolution, “Hr” (High resolution) is displayed. ‘High’ resolution stores the full image resolution from the sensor array, while ‘Low’ subsamples the sensor array, to store 4x the number of images (e.g. 80 in QCIF mode, compared to 20 in CIF mode).

Dependant on the type of s en sor us ed, diff eren t res ol uti ons are obt ained, see Table 4 or Tab le 5 . By pres s ing the sh utte r but ton, user changes the resolution.

3.6.3 Exiting this mode

After 5 seconds of non-activity, or after the resolution has been changed, the camera returns to standby mode.

3.7 Tethered USB Video mode

3.7.1 Entering this mode

This is activated by the PC Video for Win dows driv er w hi le the cam era is tethered, dependant on whethe r VfW is supp orte d (se e Table 3).

3.7.2 Descript ion

The camera is controlled by the PC driver. Note: Any images or continuous image sequences contained in the camera are lost when the video for Windows driver starts.

3.7.3 Exiting this mode

This is controlled by the PC drivers.

3.8 Powering the camera off

3.8.1 Entering this mode

This is not truly a mode of operation, but a description of what happens if:

• The battery power and USB connection are removed from the camera

• The battery power is removed, and the PC to which the camera is tethered, is switched off.

This version: ST VIBU internal use only

• The battery v olt age falls extremely low. Ways of a vo idi ng this situation a re discussed in th e reference design, see Section 9 .

Note: normally a camera with U SB in terfa ce sho ul d so urc e po wer fro m th e USB connection, but this is hard ware dep end ant, see Section 9.

3.8.2 Description

In this situation, all image data is lost. Note: under certain circumstances, the image data may be maintained if the camera or PC is powered on again after a few

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 17

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

seconds, although this is not guaranteed).

March 2000

3.8.3 Exiting this mode

When the camera is pow ered on again, ei ther when the battery is re-f itted, or t he USB is re-connec ted, or the PC is re-started, the camera will power up into standby mode, High resolution, with all images available.

STV0680F_contents.fm

This version: ST VIBU internal use only

CDSTV0680F-C

Commercial in confidence

Page 18

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

4. STV0680A hardware interfaces

4.1 STV0680A pinout

The STV0680A pinout has been carefully developed to minimise the physical size of the support printed circuit board by facilitating placement of and electrical routing to peripheral support components such as the SDRAM. The complete pinout and listing is shown in Section 8.

4.2 Sensor interface

STV0680A uses a standard ST digital interface from the sensor, and the sensor clock input is provided by an output from STV0680A. Designing a camera using this chipset should design as close as possible to the reference design (Section 9.), in which case the chipset can be regarded as a functional ‘bla ck box’, and no further details regar ding the STV0680A-sensor interface are required.

4.3 Memory interface

STV0680A is designed to in terfa ce to an ex te rnal 16 Mb it or 64Mbit SDRAM (see Ta ble 4 and Table 5). The SDRAM device mu st have a 16 bit wide data bus and op erate from a 3.3V sup ply. Two si zes of SD RAM memory are suppor ted by STV068 0A, 16MBits (1M x 16 bits wide) or 64MBits (4M x 16 bits wide), the memory size is auto-detected by STV0680A. STV0680A clocks the SDRAM at 6MHz, typica lly thi s i s well below the figures offered by most manufactu rers ’ de vic es . D ev ic es whic h are PC 66 a nd/o r PC100 compliant are preferred. For interface wiring, see Section 9.

4.3.1 SDRAM Current consumption

For maximum system battery li fe while no picture s are bein g taken, an d to assi st in mee ting require ments for U SB compl iance, an SDRAM should be chosen with the lowest possible self refresh current specification. For suggested SDRAM part numbers, see Section 9.

4.3.2 SDRAM interface timing requirements

The following timing diagrams should be referred to when selecting SDRAM other than those recommended in Section 9.

DCLK

CKE

Command

A0-9,BA

A10

DQM

CMS

CMH

ACTIVE

ROW COLUMN

ROW

RCD

CMS

READ

READ Latenc

DOUT M

RAS

NOP PRECHARGE NOP

CMH

DOUT M + 1 DOUT M + 2 DOUT M + 3

This version: ST VIBU internal use only

STV0680F_contents.fm

DQ sample DQ sample DQ sample DQ sample

CDSTV0680F-C

Commercial in confidence

Page 19

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

Figure 2 : SDRAM Read Timing (16Mbit device, burst read)

DCLK

CKE

Command

A0-9,BA

A10

DQM

CMS

CMH

ACTIVE

ROW COLUMN

ROW

WRITE

CMS

DIN M

DIN M + 1 DIN M + 2 DIN M + 3

NOP PRECHARGE NOP

CMH

March 2000

RCD

RAS

Figure 3 : SDRAM Write Timing (16Mbit device, burst write)

Symbol Min Max Units Symbol Min Max Units

CMS

CMH

166.45 166.89 ns t ½tCKt ½tCKt

½t

0nst

82.88 ns t

82.85 ns t

RCD

RAS

RCD

81.01 ns

83.41 ns 1t 55t 7t 2t 1t

This version: ST VIBU internal use only

82.88 ns t

82.76 ns

Table 7 : Timing parameters for SDRAM read/write

4.3.3 SDRAM refresh Period

The SDRAM refresh period from STV0680A is guaranteed to be no greater than 15.6µS during ‘Snapshot’/self-timer/continuous/ tethered video modes of operation (i.e. not standby mode). In standby mode, the SDRAM is set to self-refresh, therefore no

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 20

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

refresh from STV0680A takes place.

March 2000

STV0680A + VV6444/6410/6500

4.3.4 SDRAM initialisation Period

The SDRAM initialisation period is currently set to 981µS in STV0680A.

4.4 USB interface

STV0680A includes a USB Version 1.1 compliant Universal Serial Bus Interface, including a transceiver. This allows direct connection from STV068 0A to a USB conn ector w ith minim al addi tional hardwa re (i.e. a sm all nu mber of pa ssiv e disc retes) - se e Section 9.

The USB interface interfaces the STV0680A to the USB at full speed 12MHz data rate. Some of the features are:

• Compliant with USB protocol revision 1.1.

• USB protocol handling.

• USB device state handli ng.

• Clock and data recovery from USB.

• Bit stripping and bit stuffing functions.

• CRC5 checking, CRC16 generation and checking.

• Serial to parallel conversion.

• Single bulk end point.

USB drivers are supplied by ST. For USB timing information, please refer to the USB specification V1.1.

4.5 UART module for RS232 interface

The UART module on STV0680A provides a 115200 baud full duplex interface to an external Host.

4.5.1 RS232 Physical interface

STV0680A does not support direct connection to a serial link. Physical line driver circuitry is required, e.g. using a standard RS232 transceiver chip, or by using a small number of low cost discretes (as shown in Section 9.). The schematics shown assume a 3 core cable with a length of no greater than 2m. Unscreened cable can be used, a suitable low cost connector is a

3.5mm audio jack plugs/sockets.

4.5.2 UART Module Overview

Receiving data The UART module in STV0680A receives serial data through the RXD pin. Data reception is initiated by a 1-to-0 transition on

RXD, and the received data is sampled every 8.66µS. If the RXD input is not 0 when the incoming data is first sampled, the UART module goes back to look for another 1-to-0

transition. This is to provide rejection of false start bits. If the start bit proves valid, reception of the rest of the frame will proceed.

Transmitting data

When a transmission is activated by STV0680A, the contents of an internal transmit shift register are shifted onto the TXD pin, every 8.66µS.

The UART operates at 12MHz, which is not an integer multiple of 115200, so the actual baud rate is 115232 +/- 0.3%, which is well within the requirements of a typical 16x oversampling UART, which can tolerate a 3.75% error in baud rate.

This version: ST VIBU internal use only

4.6 Power management and battery type

STV0680A and the SDRAM require a 3.3V supply. Where a VV6410 or VV6500 (3.3v) sensor is used, a single voltage regulator can be used to regulate the sup ply for all three c ompon ents fro m the b attery, or the sens or on-bo ard VReg c an be us ed. Wh ere a VV6444 is used, the sensor requires a 5V supply, hence a DC-DC converter is recommended to provide enough voltage when the camera is powered from the USB bus. These are explained more fully in the reference design.

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 21

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

4.6.1 Power switching to USB

Included in the USB compliance requirements, is the ability of the camera to report to the PC when connected to the USB bus,

whether or not

battery life while the camera is used in USB tethered video mode. In order to allow switching from battery to USB power, some additional hardware is require d (see also Sect ion 9.):

• The USBDETECT input to STV0680A is used to detect that a USB power supply is connected

• If the USB is detected, additional hardware is used to switch off the battery

• An inrush protectio n circuit can protec t the USB bus from cur rent draw in the c ase of a low battery/ba ttery not fitted. Th is may be necessary to comply with the USB specification.

• For precise USB compliance requirements, please consult the USB specification version 1.1

there is a fresh batte ry in the camera. This mea ns that pow er so urcing f rom U SB is requ ired, which also saves on

4.6.2 Switched sensor supply

Dependant on the hardware implementation, the SENSPWR output from STV0680A can be used to power off completely the sensor during Standby mode (in the case of VV6444) or put the sensor into Suspend mode (in the case of VV6410/6500). This has a significant improvement on battery life.

4.6.3 Battery type

This is hardware dependant. The schematics referred to in Section 9. assume either three or four 1.5V cells.

4.7 Quartz Crystal

Regardless of the sensor type or anti-flicker requirements, the sensor + STV0680A chipset operates from a single 12MHz fundamental quartz crystal. For s pecificati on requirements, see Table 15. STV0680A includes an on-chip low jitter PLL, for PLL characteristics, see Table 14.

4.8 Numeric LCD interface

STV0680A supports a 2-digit LCD panel only, for alpha-numeric display.

4.8.1 LCD types

STV0680A connects to a non multiplexed, direct drive LCD with 2 x 7 segments. Many LCD types are compatible with this interface.

The LCD refresh fre

uency is 34.7Hz

4.8.2 LCD interface pinout

'0' connects to segmen t 'a', '1' c onnec ts to seg ment 'b' , and so on, wh ere a to g a re stand ard for all 7-segm ent dis play s, as w ell as an LCD common output, giving

fifteen signals in total.

4.9 Switches and LED’s

The GPIO lines on STV0680A have pre-defined functions as fol lows , s ee Se ction 2.2 for user interface functionality, and Section

9. for precise hardware implementation.

! Note

The precise functionality of early demonstration units may vary from the actual user interface supported by STV0680A.

4.9.1 MODE push button and SHUTTER push button: GPIO0 and GPIO1

Both push button inputs have internal de-bounce circuits, reducing the amount of hardware required externally. It is recommended that labelling is used on the camera casing to help the user understand the functioning of the 2-button interface.

This version: ST VIBU internal use only

4.9.2 Input to select between 50 and 60Hz flicker frequency: GPIO3

This allows for factory setting of the anti-flicker frequency, dependant on the final country of destination. See also Section 2.5. The polarity of this selection is detailed in the reference design (see Section 9.).

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 22

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

4.9.3 LED indicator output: GPIO5

The LED output has an 8mA current sinking capability.

4.9.4 Unused pins: GPIO2, 4, 6, 7

These should be tied to GND.

March 2000

STV0680A + VV6444/6410/6500

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

This version: ST VIBU internal use only

Page 23

PRELIMINARY

)

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

5. PC software

5.1 Driver support available

Interface type:

PC Operating system:

STV680-001 Not available TWAIN

STV0680A-002 TWAIN TWAIN, VfW

Win9x, WinNT4, Win2k

RS232

Table 8 : Driver choices

USB

Win98 and Win2k only

5.2 Demonstration software

The following is supplied with evaluation kits/demonstration units (This software is ma inly for demonstration p urpose s and s hould NOT be supplied as an end-user product.

1. Simple demonstration software for uploading thumbnails and images.

2. Video demonstration application for STV0680-001 tethered “video” mode throu . This is not required for STV0680A, which can be used with standard VfW drivers.

ble

3. AVI creator software for uploadin

! Note

With STV0680, a simple sufficient framerate to allow for camera test, lens focussin

continuous images for creating ‘movie’ cli ps.

video.exe

application is provided. Whilst not being a VfW applic ation, it gives

, etc.

h USB (WIN 98 only) (NOT VfW compati-

5.3 OEM software

OEM’s have the following options for productisation of a camera based on the chipset:

1. TWAIN driver for uploadin

software.

2. Video for Windows driv er f or te the red v id eo m od e th rou

bundled with standard video for windows software.

3. Development of custom end-user software, including the ST colour process, developed under license using the SDK.

images, this would allow the camera to be bundled with standard TWAIN compatible imaging

h USB (WIN 98 & WIN2K only). This would allow the camera to be

5.4 Software Development Kit (SDK)

5.4.1 General

A software development kit is supplied by ST under license agreement, which allows the OEM to develop a custom application which can perform picture download, thumbnail display, and colour processing. This supports Windows95TM (Serial interface only) or Windows98/Win2KTM (Serial or USB), and includes features such as:

• Very fast download (through USB) and colour display of image thumbnails for picture selection

• Download of full image once selected by user software

• Colour processing of full image, using the ST colour process

• Automatic detection and correction of sensor defects

The SDK is supplied by ST as a 32-bit DLL format, running on Windows 98/Win2K software interface. This provides the basis for developing a custom software application for stills and/or video.

The ST SDK for the chipset comprises the following:

, and accessed through a documented

This version: ST VIBU internal use only

• Interface library containing all Application Programmer’s Interface (API) functions. Provided as C library and header files.

• All driver files necessary for chosen communications link (supplied as DLL and SYS files).

• Documentation of all API functions including example code fragments.

All software is built as 32-bit modules for Windows 98 /Win2K. The serial communications link is also supported for Windows 95. A development environment of Microsoft Visual C++ v5 or higher is assumed.

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 24

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

5.4.2 API Overview

All OEM application software communicates with the camera by means of the API as illustrated in Figure 4.

User Application

API

Drivers

Camera Module

Figure 4 : Software interface

The user application, API and drivers all run on the host PC. The drivers communicate with the camera by the chosen communications link (either serial or USB). The core API functions allow for:

• The camera to be opened and closed as a device under the operating system

• Query of camera information and configuration (e.g., the number of pictures taken, current mode setting)

• Uploading of images and thumbnail images

• Control of camera functions (e.g., taking a picture or resetting the image counter).

Both single-threaded and multi-threaded programming models are supported and the camera may be accessed using either synchronous (i.e., blocking) or asynchronous (i.e., non-blocking or overlapped) communications. Where asynchronous communications are used, the application developer is responsible for coordinating tasks and access to the camera.

This version: ST VIBU internal use only

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 25

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

6. Customisation options

The feature set of the STV0680A chipset encompasses the vast majority of digital stills and toy camera applications. However, subject to comm ercia l agre ement for high vo lume app licat ion s, the c onfigu ratio n of S TV0680A could be modifie d by ST to a llo w a new chipset to be produced.

Please contact ST for details.

STV0680F_contents.fm

This version: ST VIBU internal use only

CDSTV0680F-C

Commercial in confidence

Page 26

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

7. Detailed chipset specifications

7.1 Typical camera specifications

The following data assumes that the camera has been built according to reference design shown in Section 9.

Supply Voltage: 6-9V (when powered from battery) or 5V

(when powered from USB). (* See Note 1.)

Operating Temperature range 0 Example lens horizontal FOV 44

Max. RS232 cable length supported 2m

CIF output 352 x 288 pixels

QCIF output 176 x 144 pixels

VGA output (using VV6500) 640 x 480 pixels

QVGA output (using VV6500) 320 x 240 pixels

Image upload format Raw Bayer

PC driver output format Colour RGB bitmap

C - 40oC

(* See note 2)

Table 9 : Typical camera specifications

Notes:

1.Dual USB or battery power supply is only possible when the required power switching har dware is included, as shown in

Section 9.

2.Figures are approximate and depend on actual components sourced.

Sensor Min Max

VV6444 8.18µS39mS VV6410 8.67µS44mS VV6500 7.94µS66mS

Table 10 : Approximate shutter speeds

7.2 STV0680/STV0680A companion processor

Parameter Min Typ Max Units

Supply Voltage 3.0 3.3 3.6 V

This version: ST VIBU internal use only

Current consumption (normal operation) 20 TBD mA

Standby current consumption (untethered standby

mode or PC suspend mode)

Operating Temperature range 0 70

Package 100QFP

Exposure control 1 000 000:1

Table 11 : STV0680/STV680A Specifications

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

0.35 TBD mA

Page 27

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

Description Range Unit

Storage Temperature

50 to 150

(Approximate)

Table 12 : STV0680/STV0680A Absolute Maximum Ratings

Parameter Description Min Typ Max Units

VDD Power Supply 3.0 3.3 3.6 V

V V

R R TF

ILU IHU

IHUZ

OLU OHU OHU

CRS

PU PD

R F

RFM

DRV

USB differential pad D+/D- output signal cross over voltage 1.3 2.0 V

USB differential pad D+/D- input low 0.8 V

USB differential pad D+/D- input high (driven) 2.0 V

USB differential pad D+/D- input high (floating) 2.7 3.6 V

USB differential pad D+/D- input sensitivity 0.2 V 1

USB differential pad D+/D- common mode voltage 0.8 2.5 V 2

USB differential pad D+/D- output low voltage 0.0 0.3 V USB differential pad D+/D- output high voltage 2.8 3.6 V USB differential pad D+/D- output high voltage 2.8 3.6 V

USB differential pad D+/D- pullup resistor 1.425 1.575 KΩ

USB differential pad D+/D- pulldown resistor 14.25 15.75 KΩ

Rise Time 4 20 ns

Fall Time 4 20 ns

Differential Rise Time and Fall Time Matching 90 111.11 % 3

Driver Output Resistance 28 44 Ohms 4

March 2000

Note

Table 13 : STV0680/STV0680A DC Characteristics

Notes on Table 13:

1. VDI = |(D+) - (D-)|

2. VCM includes VDI range.

3. TF

4. Z

=( TFR / TFF ).

RFM

includes an external resistor of 20 Ohms serial to this transceiver.

DRV

Parameter Symbol Min Typ Max Unit Condition

Peak to peak jitters -- -- 170 220 ps @VCOfreq = 100MHz ~ 200MHz

Duty cycle -- 40 50 60 %

Operating voltage range VDD 3 3.3 3.6 V

Input low voltage VIL - 0.8 V VDD=3.3V

Input high voltage VIH 0.7VDD VDD V VDD=3.3V

Pull_in Time + Locking

Time

Tready -- -- 0.5 ms

CDSTV0680F-C

This version: ST VIBU internal use only

STV0680F_contents.fm

Commercial in confidence

Page 28

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

Output Slew Rate [ Tsr(Fout) -- 0.100+0.1082*CL -- ns CL:Output Load(pF)

March 2000

STV0680A + VV6444/6410/6500

Table 14 : STV0680/STV0680A PLL Characteristics

Parameter Min Typ Max Units

Crystal specification 50/50/10/30 (12mhz Fundamental)

Crystal frequency 12.000 MHz

Frequency tolerance 50 ppm

Temperature stability 50 ppm

Operating temperature -10 Deg. C

Load capacitance 30 pF

Table 15 : STV0680/STV0680A Crystal Tolerance

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

This version: ST VIBU internal use only

Page 29

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

7.3 VV6444 Sensor

Colour Image Format 352 x 288 pixels (CIF)

Pixel Size 12.0 x 11.0µm

Image array size 4.272mm x 3.212mm

Array Fo rmat CIF

Sensor signal / Noise ratio Approx. 48dB (* See note 1)

Supply Voltage 5.0V DC +/-5%

Package type 48LCC

Operating Temp. range 0

Current consumption Min Typ Max Units

’Snapshot’/self-timer/continuous/tethered

video modes of operation

Standby/PC Suspend Mode, sensor pow-

ered off (see note 2)

Standby/PC Suspend Mode, sensor pow-

ered on (See note 3)

Negligible TBD µA

Approx.

C - 40oC

30 TBD mA

TBD µA

300

March 2000

Table 16 : VV6444 Specifications

* Notes:

1. 48dB refers to VV6404. With the addition of microlenses on VV6444, an increase in sensitivity can be expected.

2. Where the sensor is completely powered off by a FET or switcher (external hardware) during the Standby/PC Suspend Mode.

3. Where the FET/switcher is not implemented, and the sensor is powered throughout Standby/PC Suspend Mode, however the sensor clock is disabled.

Parameter Min. Max. Notes

TJ Junction Temp 0 deg C 100 deg C

Internal Pullup resistor 35kΩ 150kΩ

Internal Pulldown resistor 35kΩ 150kΩ

-0.5v 0.3 x V

0.7 x V

2.4v VDD - 0.5v IOH = 100µA

VDD + 0.5v Guaranteed input high voltage

0.4V At max IOL for pad type

Guaranteed input low voltage

At max I

Table 17 : VV6444 DC Characteristics

for pad type

This version: ST VIBU internal use only

7.4 VV6410 and VV6500 sensors

Colour Image Format 352 x 288 pixels (CIF)

Pixel Size 7.5 x 6.9µm

STV0680F_contents.fm

Table 18 : VV6410 Specifications

CDSTV0680F-C

Commercial in confidence

Page 30

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

Image array size 2.67mm x 2.04mm

Array Format CIF

Sensor signal / Noise ratio Approx. 57dB

Package type 36LCC

Supply Voltage 3.3V DC +/-5%

Operating Temp. range 0

Current consumption: Min Typ Max Units

’Snapshot’/self-timer/continuous/tethered

video modes of operation

Standby Mode/PC Suspen d Mode, SUS-

PEND pin asserted (see note 1)

Standby Mode/PC Suspen d Mode, SUS-

PEND pin

not

asserted (see note 2)

Table 18 : VV6410 Specifications

Notes:

March 2000

STV0680A + VV6444/6410/6500

C - 40oC

25 TBD mA

<100 TBD µA

<300 TBD µA

1. Assuming appropriate external hardware recommendations are implemented (see Section 9.), the sensor SUSPEND pin is asserted during Standby M ode /PC Su sp end M ode. Hence the s ens or is placed in Sen so r Su spend mode by m ea ns of (a) a Serial interface message and (b) the SUSPEND pin being asserted.

2. Where the external hardware does not permit the sensor SUSPEND pin to be asserted during Standby Mode/PC Suspend Mode, the sen s or is placed in Sensor Su spend mode by mean s of a Serial interface message only. This increases current consumption due to a pull-up on the SUSPEND pin.

Colour Image Format 640 x 480 pixels (VGA)

Pixel Size 7.5 x 7.5µm

Image array size 4.89mm x 3.66mm

Array Format VGA

Sensor signal / Noise ratio Approx. 57dB

Supply Voltage 3.3V DC +/-5%

Package type 48LCC

Operating Temp. ra n ge 0

Current consumption: Min Typ Max Units

’Snapshot’/self-timer/continuous/tethered

video modes of operation

C - 40oC

30 TBD mA

This version: ST VIBU internal use only

Standby Mode/PC Suspend Mode, SUS-

PEND pin asserted (see note 1)

Standby Mode/PC Suspend Mode, SUS-

not

PEND pin

asserted (see note 2)

<100 TBD µA

<300 TBD µA

Table 19 : VV6500 Specifications

Notes:

1. Assuming appropriate external hardware recommendations are implemented (see Section 9.), the sensor SUSPEND pin is

CDSTV0680F-C

STV0680F_contents.fm

Commercial in confidence

Page 31

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

asserted during Standby M ode /PC Su sp end M ode. Hence the s ens or is placed in Sen so r Su spend mode by m ea ns of (a) a Serial interface message and (b) the SUSPEND pin being asserted.

March 2000

Parameter Min. Max. Notes

TJ Junction Temp 0 deg C 100 deg C

Standard Pullup (SDA, SCL) 35µA current

Standard Pulldown (OEB) 25µA current

-0.5v 0.3 x V

0.7 x V

2.4v VDD - 0.5v IOH = 100µA

draw

VDD + 0.5v Guaranteed input high voltage

52µA current

42µA current

0.4V At max IOL for pad type

draw

Guaranteed input low voltage

At max I

for pad type

Non-standard Pullup

(RESETB)

66µA current

draw

250µA current

draw

Table 20 : VV6410/6500 DC Characteristics

7.5 Typical current consumption of complete camera

The following data assumes that the camera has been built according to reference design referred to in Section 9. Figures are approximate and depend on actual components sourced - see notes.

This version: ST VIBU internal use only

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 32

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

7.5.1 Using VV6444 (sensor operates at @ 5V DC)

Mode

’Snapshot’/Cont inuous/

Self timer mode (while

un-tethered)

’Snapshot’/Continuous/

Self timer mode (while

tethered to PC)

Camera standby mode

(when NOT co nnected to

USB)

Suspend mode

(when connected to

USB)

Typical Current

Cons.

80mA

80mA Assuming appropriate hardware included, power is

Approx. 0.4mA + SDRAM self-refresh current (see note 2)

Approx. 0.6mA + SDRAM self-refresh current (see note 2)

Total current in this mode equals STV0680/680A Standby current consumption (see note 1) + SDRAM self-refresh current (see note 2)

+ peripheral circuitry (approx. 50µ Total current in this mode equals

STV0680/680A Standby current consumption (see note 1) + SDRAM self-refresh current (see note 2)

March 2000

STV0680A + VV6444/6410/6500

Comments

sourced from PC while USB connected.

A, see note 3).

+ peripheral circuitry (approx. 50 + 200

A , based on 1.5k pull-up in camera (see Section

9.) and 15k pull-down in PC.

A, see note 3).

Table 21 : Current consumption, complete STV0680A+VV6444 camera

Notes:

1. See Table 11 on page26.

2. From li mited evaluatio n, typi cal se lf-refres h curre nt figu res of c ertain SDRAM chi ps are well b elo w m anu f act urers’ m axim um specification, e.g. 100-250

3. This is assuming a low quiescent current 3v3 VReg is used, and assuming that the sensor is switched off using external circuitry.

A. See Section 9. for recommendat ions.

This version: ST VIBU internal use only

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 33

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

7.5.2 Using VV6410/6500 (sensor operates at @ 3.3V DC)

Mode Typical Comments

’Snapshot’/Continuous/

Self timer mode (while

un-tethered)

’Snapshot’/Contin uou s/

Self timer mode (while

tethered to PC)

Standby Mode (when

NOT connecte d to USB):

Sensor SUSPEND pin

asserted (see note 4)

PC Suspend mode

(when connected to

USB): Sensor SUSPEND

pin asserted (see note 4)

60mA Assuming appropriate hardware included, power is sourced from PC

while USB connected.

60mA

Approx. 0.5mA +

SDRAM self-

refresh current (see

note 2)

Approx. 0.7mA +

SDRAM self-

refresh current (see

note 2)

Total current in this mode equals STV0680A Standby current consumption (see note 1) + SDRAM self-refresh current (see note 2)

+ peripheral circuitry (approx. 50µ + Sensor suspend mode current (See note 3) Total current in this mode equals STV0680A Standby current consumption (see note 1) +SDRAM self-refres h current (see note 2)

A).

March 2000

+ peripheral circuitry (approx. 50µ + 200

pull-down in PC. + Sensor suspend mode current (See note 3)

A , based on 1.5k pull-up in camera (see Section 9.) and 15k

A).

Table 22 : Current consumption, complete STV0680A+VV6410/6500 camera

Notes:

1. See Table 11 on page page 26. However, STV0680A mean current consumption is to be determined by measurement of sample quantity in due course.

2. From li mited evaluatio n, typi cal se lf-refres h curre nt figu res of c ertain SDRAM chi ps are well b elo w m anu f act urers’ m axim um specification, e.g. 100-250

3. Sensor suspend mode current <100µ

4. If the appropriate hardware to asse rt the sensor SUSPEND pin is not fitted, an addditio nal current consu mption in thi s mode of up to 200µA can be expected.

A. See Section 9. for recomm end atio ns.

A when SUSPEND pin asserted, see Table 18 and Table 19.

This version: ST VIBU internal use only

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 34

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

8. STV0680A Pin descriptions and Package Information

8.1 STV0680A Pin Listing

Pin no. Signal Type Description drive

Sensor Interface 69 SENSPWR Output, active high Power-up Sensor 2mA (SL) 68 SENSRST Output, active low Reset Sensor 2mA (SL) 60 SCL Input/Output (OD,T) Sensor serial interface 4mA (SL) 61 SDA Input/Output (OD,T) Sensor serial interface 4mA (SL) 62 SD3 Input (S,T) Sensor data 63 SD2 Input (S,T) Sensor data 64 SD1 Input (S,T) Sensor data 65 SD0 Input (S,T) Sensor data 66 QCLK Input (S,T) Qualification clock from sensor 67 SCLKO Output Clock output to sensor 4mA

GPIO (see note) 77 GPIO0 (MODE) Debounced input Push button (Wake-up/Mode) 8mA (SL) 76 GPIO1

(SHUTTER 75 GPIO2 IO (OD) Not used (tie to GND with 0R link) 8mA (SL) 74 GPIO3 (50/60) Debounced input Link to select between 50Hz and 60Hz lighting 8mA (SL) 73 GPIO4 IO (OD) Not used (tie to GND with 0R link) 8mA (SL) 72 GPIO5 Output (OD) LED indicator 8mA (SL) 71 GPIO6 IO (OD) Not used (tie to GND with 0R link) 8mA (SL) 70 GPIO7 IO (OD) Not used (tie to GND with 0R link) 8mA (SL)

42 USBDETECT Input (S) Detect Power source from USB.

43 DATA+ Input/Output USB bus

44 DATA- Input/Output USB bus.

)

Debounced input Push button (Shutter/Confirm) 8mA (SL)

USB Interface

USB speci-

(For camer a with R S23 2 only, this pin sh ou ld be tied t o GND )

(For camer a with RS232 on ly, this pin should be connected to

test points to allow for USB production test (lens focussing))

(For camer a with RS232 on ly, this pin should be connected to

test points to allow for USB production test (lens focussing))

RS232 Interface

fication

V1.1 com-

pliant I/O

This version: ST VIBU internal use only

58 TXD Output Serial data transmit

(For camera with USB only, this pin should be tied to RXD)

59 RXD Input (S) Serial data receive

(For camera with USB only, this pin should be tied to TXD)

STV0680A Master Clocks and Reset 48 XIN Input Quartz Crystal IN 49 XOUT Output Quartz Crystal OUT

CDSTV0680F-C

STV0680F_contents.fm

Commercial in confidence

4mA (SL)

Page 35

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

Pin no. Signal Type Description dr ive

51 RESET Input (S) Active (LOW) STV0680A reset

System Memory (SDRAM) Interface 20 DQMU Output Data i nput/output mask for dram_DQ[15:8] 2mA (SL) 22 DCLK Output Clock: all SDRAM input signals are sampled on the positive

edge

24 CKE Output Clock enable: activates (HIGH) and deactivates (L OW) the

SDRAM CLK signal

28 AD11 Output SDRAM address A11 for 64M SDRAM or BA for 16M

SDRAM 31 AD9 Output SDRAM address A9 2mA (SL) 33 AD8 Output SDRAM address A8 2mA (SL) 35 AD7 Output SDRAM address A7 2mA (SL) 37 AD6 Output SDRAM address A6 2mA (SL) 39 AD5 Output SDRAM address A5 2mA (SL) 41 AD4 Output SDRAM address A4 2mA (SL)

4mA

2mA (SL)

40 AD3 Output SDRAM address A3 2mA (SL) 38 AD2 Output SDRAM address A2 2mA (SL) 36 AD1 Output SDRAM address A1 2mA (SL) 34 AD0 Output SDRAM address A0 2mA (SL) 32 AD10 Output SDRAM address A10 2mA (SL) 26 AD12 Output SDRAM address A12, BA0 for 64M SDRAM, unused on 16M 2mA (SL) 30 AD13 Output SDRAM address A13, BA1 for 64M SDRAM, unused on 16M 2mA (SL) 25 CS Output, active low Chip select: enables (registered LOW) and disables (regis-

tered HIGH) the SDRAM command decoder. 23 RAS Output, active low SDRAM row address strobe command 2mA (SL) 21 CAS Output, active low SDRAM column address strobe command 2mA (SL) 19 WE Output, active low SDRAM write enable command 2mA (SL) 18 DQML Output Data input/output mask for dram_DQ[7:0] 2mA (SL) 16 DQ7 Input/Output SDRAM Data Bus 2mA (SL) 14 DQ6 Input/Output SDRAM Data Bus 2mA (SL) 12 DQ5 Input/Output SDRAM Data Bus 2mA (SL) 10 DQ4 Input/Output SDRAM Data Bus 2mA (SL)

8 DQ3 Input/Output SDRAM Data Bus 2mA (SL) 6 DQ2 Input/Output SDRAM Data Bus 2mA (SL)

2mA (SL)

This version: ST VIBU internal use only

4 DQ1 Input/Output SDRAM Data Bus 2mA (SL)

100 DQ0 Input/Output SDRAM Data Bus 2mA (SL)

2 DQ15 Input/Output SDRAM Data Bus 2mA (SL) 5 DQ14 Input/Output SDRAM Data Bus 2mA (SL) 7 DQ13 Input/Output SDRAM Data Bus 2mA (SL)

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 36

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

Pin no. Signal Type Description dr ive

9 DQ12 Input/Output SDRAM Data Bus 2mA (SL) 11 DQ11 Input/Output SDRAM Data Bus 2mA (SL) 13 DQ10 Input/Output SDRAM Data bus 2mA (SL) 15 DQ9 Input/Output SDRAM Data bus 2mA (SL) 17 DQ8 Input/Output SDRAM Data bus 2mA (SL)

LCD Interface 85 LCDCOM Output LCD Common 2mA (SL) 93 LCD1_6 Output LCD digit 1 segment G 2mA (SL) 94 LCD1_5 Output LCD digit 1 segment F 2mA (SL) 95 LCD1_4 Output LCD digit 1 segment E 2mA (SL) 96 LCD1_3 Output LCD digit 1 segment D 2mA (SL) 97 LCD1_2 Output LCD digit 1 segment C 2mA (SL) 98 LCD1_1 Output LCD digit 1 segment B 2mA (SL) 99 LCD1_0 Output LCD digit 1 segment A 2mA (SL) 86 LCD2_6 Output LCD digit 2 segment G 2mA (SL) 87 LCD2_5 Output LCD digit 2 segment F 2mA (SL) 88 LCD2_4 Output LCD digit 2segment E 2mA (SL) 89 LCD2_3 Out put LCD digit 2segment D 2mA (SL) 90 LCD2_2 Out put LCD digit 2segment C 2mA (SL) 91 LCD2_1 Output LCD digit 2 segment B 2mA (SL) 92 LCD2_0 Output LCD digit 2 segment A 2mA (SL)

Piezo Interface

84 PIEZO Output Direct connection to piezo buzzer 8mA (SL)

Battery Level Comparator Interface

80 LO_BAT Input (A) Battery level comparator input. The voltage on low_bat is

compared to the reference to determine the battery status

79 LO_BAT_REF Input (A) 1.22V battery level comparator reference input

Power and Ground

1, 27, 50,

56, 78

3, 29, 57,

83 52 PLLGVDD Power pin PLL Guard Power 53 PLLGVSS Power pin PLL Guard Ground

DVSS[1-5] Power pin Digital Ground

DVDD[1-4] Power pin Digital Power

This version: ST VIBU internal use only

54 PLLAVDD Power pin PLL Analog Power 55 PLLAVSS Power pin PLL Analog Ground

Non-user pins 45 TEST0 Input Non-user pin - connect to 3V3 46 TEST1 Input Non-user pin - connect to 3V3

CDSTV0680F-C

STV0680F_contents.fm

Commercial in confidence

Page 37

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

Pin no. Signal Type Description dr ive

47 TEST2 Input Non-user pin - connect to 3V3 81 DACRES Non- user pin

I(A)

82 DACOUT Non-user pin

O (A)

DAC bias amplifier reference input

8-bit DAC current source output

Table 23 : STV0680A Pin listing

Key:

• SL - slew rate limited output

• OD - open drain output

• S - schmitt input

• A - analog input/output

• T - 5V tolerant pad (these pads do not have diode protection)

See example schematic in Section 9.

0-10mA (2)

Where the I/O pad type is not explicitly defined in the above notes, assume CMOS. Note: GPIO are not ‘g ene ral purpose’, in the sense th at t hei r fu nc tio n i s pred ete r mi ned (e. g. GPIO0 = MODE, GPIO2 is Un use d),

dependant on the variant number of STV0680/STV0680A, denoted by the suffix on the part number -00x.

This version: ST VIBU internal use only

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

Page 38

PRELIMINARY

)

(

)

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

8.2 STV0680A pinout diagram

DQ0

LCD1_a

LCD1_b

LCD1_c

LCD1_d

LCD1_e

LCD1_f

LCD1_g

LCD2_a

LCD2_b

99989796959493929190898887868584838281

100

DVSS1

DQ15

DVDD1

DQ1

DQ14

DQ2

DQ13

DQ3

DQ12

DQ4

DQ11

DQ5

DQ10

DQ6 DQ9 DQ7 DQ8

DQML

DQMU

CAS

DCLK

RAS CKE

AD12

DVSS2

AD11

DVDD2

AD13

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

STV0680A

100QF P

March 2000

LCD2_c

LCD2_d

LCD2_e

LCD2_f

STV0680A + VV6444/6410/6500

LCD2_g

LCDCOM

PIEZO

DVDD4

DACOUT

DACRES

LO_BAT

LO_BAT_REF

DVSS5

GPIO0

GPIO1 (SHUTTER GPIO2

GPIO3 (50/60

GPIO4

GPIO5 (LED

GPIO6

GPIO7

SENSPWR

SENSRST

SCLKO

QCLK

SD0

SD1

SD2

SD3

SDA

SCL

RXD

TXD

DVDD3

DVSS4

PLLAVSS

PLLAVDD

PLLGVSS

PLLGVDD

RESET

MODE

31323334353637383940414243444546474849

AD9

AD8

AD0

AD7

AD1

AD6

AD2

AD5

AD3

AD10

AD4

DATA-

TEST0

TEST1

DATA+

USBDETECT

TEST2

XIN

XOUT

DVSS3

Figure 5 : STV0680A pinout in 100QFP package

CDSTV0680F-C

This version: ST VIBU internal use only

STV0680F_contents.fm

Commercial in confidence

Page 39

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

8.3 STV0680A Package Dimensions

March 2000

STV0680A + VV6444/6410/6500

Figure 6 : 100QFP Package dimensions

Note: Pin pitch is 0.65mm For sensor pinout and package dimensions, see Section 10., Section 11., and Section 12.

CDSTV0680F-C

STV0680F_contents.fm

Commercial in confidence

This version: ST VIBU internal use only

Page 40

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

9. Schematics and example parts list for complete camera design

9.1 Schematics

Support schematics are shown in the following documents:

• STV0680+VV6444 Reference Design Manual

• STV0680/680A+VV6410/6500 Reference Design Manual

Both are available in the OEM section of the ST Imaging Division web site

• (ST internal access) http://www.edb.st.com/tech_support/home.htm

• (all other access) http://www.vvl.co.uk/tech _support/home.htm

An example parts list is shown in Section 9.2, however the above documents should be referred to for the most up to date information.

STV0680F_contents.fm

CDSTV0680F-C

Commercial in confidence

This version: ST VIBU internal use only

Page 41

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

9.2 Example Parts List

The following is taken from STV0680A + VV6410/6500 Ref Design Manual Rev 0.1.

Bill of materials for DCA1+VV6410/6500 camera Rev 0.1, 23rd Dec 1999 6v battery and power supply option 2 (using external 3v3 Vreg) assumed. Non-populated options shown with grey background.

Preliminary

Page 1 #QT

REFDES DEVICE PACKAGE VALUE COST NOTES 1 1 B1 BATTERY Up to 9v with option 2 1 1 B1 BATTERY Up to 6v with option 1 2 1 C1 CAP 805 10N 3 2 C3, C4 CAP 805 100N C3, C4 option 2 only 3 22 C2,C7, CAP 805 100N

C8,C10,C11,

C12,C13,C14,

C17,C18,C20,

C21,C23,C24,

C25,C27,C28,

C29,C30,C31,

C32,C33 3 1 C37 CAP 805 100N C37 for option 1 only 4 2 C5,C6 CAP 805 22P 5 2 C15,C16 CAP 805 1U 6 2 C19,C26 CAP 805 220P 7 1 C22 CAP 805 220N 8 1 C34 ECAP T/H 10U 8 2 C35,C36 ECAP T/H 10U C35, C36 option 2 only 9 1 D1 1N4001 DO41 1N4001 Gen purpose if 4 x AA or AAA batteries 9 1 D1 Schottky DO41 Schottky Only use schottky if 3 x AA or AAA batteries

10 1 D2 DIODE SOT23 BAS116 Must be low leakage 11 2 D3,D4 DIODE SOT23 BAS16 Only for RS232 12 3 F1,F2,F3 FERRITE 805 May be required for FCC compliance 13 1 J1 USB_CON CON_USB_4 P_ TYPE_B Must be Type B for USB compliance 14 1 J2 JACK_SKT SCJ-0355- B Only for RS232 15 1 LCD1 2DIGITLC 16 1 LED1 LED 2PINTHRU Could be omitted for reduced current cons. 17 1 Q1 NPN SOT23 BC848 Q1 only required for option 2 17 2 Q2,Q3 NPN SOT23 BC848 18 1 Q4 NPN SOT23 Only for RS232 19 1 Q5 PNP SOT23 BCW61 Required for USB inrush protection 20 1 Q6 PNP SOT23 Only for RS232 20 1 Q10 PNP SOT23 Only required for option 1 21 1 Q7 SI2301DS SOT23 Only required for option 2 21 1 Q8 SI2301DS SOT23 Required for USB inrush protection 21 1 Q9 SI2301DS SOT23 22 1 R1 RES 805 220K 22 1 R4 RES 805 220K R4 only req'd for RS232 camera with USB test points 23 1 R2 RES 805 6R8 May be required for USB inrush protection

(Exact value not verified) 24 2 R9,R13 RES 805 100K 24 1 R3 RES 805 100K R3 only required for Option 2. 24 1 R5 100K R5 only req'd for RS232 camera with USB test points 24 1 R12 100K R12 required for USB inrush protection 25 3 R10,R14, R16 RES 805 1M 25 2 R6,R23 1M Only one of R6/R23 is required 26 1 R7 RES 805 470K 27 1 R8 RES 805 82K 28 1 R11 RES 805 430K Suggested value for 6v battery 28 1 R11 RES 805 510K Suggested value for 4.5v battery

Total (Page 1)

This version: ST VIBU internal use only

STV0680F_contents.fm

Table 24 : STV0680A + VV6410/6500: Parts list (1)

CDSTV0680F-C

Commercial in confidence

Page 42

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

Bill of materials for DCA1+VV6410/6500 camera Rev 0.1, 23rd Dec 1999 6v battery and power supply option 2 (using external 3v3 Vreg) assumed. Non-populated options shown with grey background.

Preliminary

Page 2 #QT

REFDES DEVICE PACKAGE VALUE COST NOTES 29 1 R56 RES 805 OR Option 1 only 29 1 R15 RES 805 OR For camera with no RS232 30 1 R17 RES 805 33R 32 2 R19,R20 RES 805 24R 33 1 R22 RES 805 120K 34 9 R24,R26,R27, RES 805 0R R24 fitting depends on flicker frequency

R37,R38,R42,

R43,R44,R51,R52 Fit R51 or R52, not both 35 8 R25,R28,R29, RES 805 10K R25 fitting depends on flicker frequency

R31,R32,R33, R31, 32, 33, 34, 35 only for RS232

R34,R35 35 1 R41 RES 805 10K R41 only required for option 2 36 1 R30 RES 805 2K2 Only for RS232 37 1 R36 RES 805 680R 38 2 R39,R40 RES 805 4K7 39 1 R50 RES 805 390R R50 only required for option 1 41 1 SW1 TOGGLE_S WI SWITCH Optional battery off switch when not in use

42 2 SW2,SW3 PUSH_SWI TC FARNELL 43 1 T1 PIEZO FARNELL_9 26 44 6 TP1,TP2,TP3, TESTPOIN T TP Only required for RS232

TP4,TP5,TP6 camera with USB prodn. Test 45 1 U1 3V3REG SOT89 MC78FC33HT1 Only required for option 2

46 1 U2 VV6500 48LCC VGA sensor (different foortprint to VV6410)

47 1 U3 STV0680 100QFP Future replacement STV0680A for VfW 48 1 U4 GM72V661 64 400MIL_T 49 1 U5 GM72V161 62 400MIL_T

50 1 U6 VV6410 36LCC CIF sensor (different footprint to VV6500)

51 1 U8 VOLTAGE SOP-23 2.7v e.g. TELCOM TC54VC2702ECB

DETECTOR threshold RICOH Rx5VLxxC SERIES 52 1 X1 XTAL HC49U 12MHZ 53 1 Lens Lens with IR filter

OP SDRAM dual footprint is possible for U4 and U5 OP Preferred SDRAM has low self refresh Idd.

Total (Page 2)

March 2000

(would lose stored images)

58 Push button switches

Could use TO92 instead

Only require U2 or U6

e.g. (16Mbit) Hyundai HY57V161610DTC-7 Micron MT48LC1M16A1TG S

Only require U2 or U6

STV0680A + VV6444/6410/6500

GM72V16162ET75

This version: ST VIBU internal use only

! Note

Not all compatible memory chips exhibit a low enough USB suspend mode (see Table 21). Two memory types have been suggested in Table 25, based on

limited

evaluation by ST, however this does not constitute a full characterisation, and no guarantees can be made that the self-refresh current consumption will match the target for USB suspend mode in all cases. Please consult the memory manufacturer for precise information.

STV0680F_contents.fm

Table 25 : STV0680A + VV6410/6500: Parts list (2)

self-refresh current

to meet the target current for

CDSTV0680F-C

Commercial in confidence

Page 43

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680F_contents.fm

This version: ST VIBU internal use only

CDSTV0680F-C

Commercial in confidence

Page 44

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

10. VV6444 Sensor Pinout and Package Dimensions

VV6444 has the same pinout and electrical characteristics as the previous generation VV6404, but microlenses are added for increased sensitivity, and the colour filters are different.

Although the VV64444 and VV6404 are electrically identical, the STV0680 and STV0680A use the correct settings for the VV6444 colour set. This means that a VV6404 should not be used with STV0680/680A.

STV0680F_444pckg.fm

CDSTV0680F-C

Commercial in confidence

This version: ST VIBU internal use only

Page 45

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

10.1 VV6444 Pin Listing

Pin Name Type Description

POWER SUPPLIES

1 AVCC PWR Core analogue power and reference supplies. 48 AGND GND Core analogue ground and reference supplies. 43 DVDD PWR Core digital power. 44 DVSS/Dsub GND Core digital ground.

6 AVDD PWR Output stage power.

5 AVSS GND Output stage ground.

7 VVDD PWR Analogue output buffer power.

9 VVSS GND Analogue output buffer ground. 14 ADCVDD PWR ADC power. 10 AD CVSS GND ADC ground.

March 2000

19 VDD1 PWR Digital padring & logic power. 30 VDD2 PWR Digital padring & logic power. 36 VDD3 PWR Digital padring & logic power. 20 VSS1 GND Digital padring & logic ground. 29 VSS2 GND Digital padring & logic ground. 37 VSS3 GND Digital padring & logic ground.

ANALOGUE SIGNALS

45 VBLOOM OA Anti-blooming pixel reset volt age 46 VBLTW OA Bit line test wh ite level reference 47 VBG OA Internally generated bandgap reference voltage 1.22V

2VCM/

VREF2V5 3 VRT IA Pixel reset voltage 4 VCDSH IA VCDS

11 ADCbot IA Bottom voltage reference for ADC 13 ADCtop IA Top voltage reference for ADC

OA Common-mode input for OSA and Internally generated 2.5 V reference

voltage.

This version: ST VIBU internal use only

13 TopRef OA Internally generally top voltage reference for ADC

Pin Name Type Description

12 HOLDPIX ID↓ Test Pin - do not use 15 SIN ID↓ Frame timing reset (soft reset).

STV0680F_444pckg.fm

DIGITAL CONTROL SIGNALS

CDSTV0680F-C

Commercial in confidence

Page 46

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

Pin Name Type Description

16 RESETB ID↑ System Reset. Active Low.

SERIAL INTERFACE

42 SCL ID↑ Serial bus clock (input only). 41 SDA BI↑ Serial bus data (bidirectional, open drain).

DIGITAL VIDEO INTERFACE

39 38 35 34

33 QCK ODT Tristateable data qualification clock. 40 FST ODT Not required by STV0680A 17 OEB ID↓ Digital output (tristate) enable.

D[3]

D[2]

D[1]

D[0]]

ODT Tristateable 4-wire output data bus. D[3] is the mo st sig ni fic ant bit.

SYSTEM CLOCKS

March 2000

STV0680A + VV6444/6410/6500

31 CLKI ID Oscillator input. 32 CLKO OD Oscillator output.

Do not connect

21-28

DNC Do not connect

Key

A Analogue Input D Digital Input OA Analogue Output ID BI Bidirectional ID

↑

BI BI

↓

Bidirectional with internal pull-up OD Digital Output

Bidirectional with internal pull-down ODT Tristateable Digital Output

↑ ↓

Digital input with internal pull-up Digital input with internal pull-down

This version: ST VIBU internal use only

STV0680F_444pckg.fm

CDSTV0680F-C

Commercial in confidence

Page 47

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

10.2 VV6444 Pinout Diagram

CLKI

CLKO

QCK

D[0]

D[1]

VDD3

VDD2

VSS2

VSS1

1920212223242526272829

VDD1

NC OEB

RESETB

SIN ADCVDD

TopRef/ADCTop

VV6444

HOLDPIX

VSS3

48 pin LCC

March 2000

D[2]

D[3]

FST

SDA

SCL

Notes:

1. NC - Not connected

2. (*) - Paddle connections

ADCBot

ADCVSS (*)

VVSS

VVDD

543214847464544

DVDD

VBLOOM

DVSS/Dsub

VBG

VBLTW

Figure 7 : VV6444 Pinout

AVCC

AGND (*)

VRT

VCM / VREF2V5

VCDS

AVSS

AVDD

This version: ST VIBU internal use only

STV0680F_444pckg.fm

CDSTV0680F-C

Commercial in confidence

Page 48

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

10.3 VV6444 Package Dimensions

Notes.

1. Die is optically centred.

2. Refractive index of glass is ~1.52.

3. Distance to optical surface of Die.

4. Pixel area of sensor.

14.52

14.09

March 2000

4.27

STV0680A + VV6444/6410/6500

0 ±

Pin 1

Pin 6

This version: ST VIBU internal use only

Figure 8 : VV6444 package dimensions in 48LCC (1)

STV0680F_444pckg.fm

CDSTV0680F-C

Commercial in confidence

Page 49

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

2.27

1.85

1.12

0.90

March 2000

0.60

0.50

STV0680F_444pckg.fm

A-A (6 : 1)

This version: ST VIBU internal use only

Figure 9 : VV6444 package dimensions in 48LCC (2)

CDSTV0680F-C

Commercial in confidence

Page 50

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

11. VV6410 Pinout information and package dimensions

Note that early VV6410 samples (as can be seen on some STV0680A EVK’s) are 48LCC, however the sampling and production package is 36LCC.

11.1 VV6410 pinout

D[1]

D[2]

D[3]

VSSio

VSScore

RESETB

D[0]

March 2000

SRAMVSS

STV0680A + VV6444/6410/6500

OEB

SCL

SDA

PORB

SUSPEND

D[4]

LST/D[5]

FST/D[6]

CLKI

D[7]

QCK

Vid3V3

VV6410

34 35 36

36LCC

AVSS

VDDhi

Vbloom

Vbltw

AoutN

This version: ST VIBU internal use only

Vbus

VDDio

VDDcore/

Reg3V3

Vbase

VBG

VRT

Aud3V3

AIN

AoutP

STV0680F_410_pckg.fm

Figure 10 : 36 pin CLCC package pin assignment

CDSTV0680F-C

Commercial in confidence

Page 51

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

11.2

VV6410 Pin descriptions

Name Pin Number Type Description

POWER SUPPLIES

AVSS 10 GND Core analog ground and reference supplies.

SRAMVSS 17 GND In-column SRAM analog ground.

VDDcore/

Reg3V3

VDDio 33 PWR Digital pad ring power.

VSScore 22 GND Digital logic ground.

VSSio 23 GND Digital pad ring ground.

34 PWR Digital logic power.

ANALOG SIGNALS

Vbloom 8 OA Anti-blooming pixel reset v oltage VBLTW 7 OA Bitline test white level reference

March 2000

VBG 1 OA Internally generated bandgap reference voltage 1.22V VRT 2 IA Pixel reset voltage AIN 4 IA Analog input to Audio Amplifier AOutP 5 OA Analog output of Audio Amplifier (positive) AOutN 6 OA Analog output of Audio Amplifier (negative) VDDHI 9 IA Incoming power supply 4 -> 6V VBase 35 OA Drive for base of external bipolar Vbus 36 IA Incoming power supply 3.3 -> 6V Aud3V3 3 OA On-chip Audio Amplifier Voltage Regulator Output Vid3V3 11 OA On-chip Video Supply Voltage Regulator Output PORB 13 OD Power-on Reset (Bar) Output.

DIGITAL VIDEO INTERFACE

D[4] D[3] D[2] D[1]

27 26 25 24

ODT Tri-stateable 5-wire output data bus.

- D[4] is the most significant bit.

- D[4:0] have programmable drive strengths 2, 4 and 6 mA

This version: ST VIBU internal use only

D[0] QCK 32 ODT Tri-stateable data qualification clock. LST/D[5] 28 ODT Tri-stateable Line start output

FST/D[6] 29 ODT Tri-stateable Frame start signal.

STV0680F_410_pckg.fm

May be configured as tri-stateable output data bit 5 D[5].

May be configured as tri-stateable output data bit 6 D[6].

CDSTV0680F-C

Commercial in confidence

Page 52

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

Name Pin Number Type Description

D[7] 31 ODT Tri-stateable Data wire (ms data bit).

May be configured as tri-stateable output data bit 6 D[6].

OEB 16 ID↓ Digital output (tri-state) enable.

DIGITAL CONTROL SIGNALS

RESETB 21 ID↑ System Reset. Active Low.

May be configured as System Sync. Active Low.

SUSPEND 12 ID↑ USB Suspend Mode Control signal. Active High

If this feature is not re quired t hen the suppo rt circuit m ust p ull the pin to ground. The combination of an active high signal and pull up pad was chosen to lim it current drawn by the device while in suspend mode.

SERIAL INTERFA C E

SCL 15 BI↑ Serial bus clock (input only).

STV0680A + VV6444/6410/6500

SDA 14 BI↑ Serial bus data (bidirectional, open drain).

SYSTEM CLOCKS

CLKI 30 ID↓ Schmitt Buffered Clock input or LVDS positive Clock input

Not connected

NC 18, 19 Not connected

Key

A Analog Input D Digital Input OA Analog Output ID↑ Digital input with internal pull-up BI Bidirectional ID↓ Digital input with internal pull-down BI↑ Bidirectional with internal pull-up OD Digital Output BI↓ Bidirectional with interna l pull -dow n ODT Tri-stateable Digital Outpu t

This version: ST VIBU internal use only

STV0680F_410_pckg.fm

CDSTV0680F-C

Commercial in confidence

Page 53

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

11.3 VV6410 package Details (36pin CLCC)

±0

Pin 1

±0

10.67-0.13

+0.30

March 2000

Pin 5

2.67

Pin 6

0.60-0.10

0.00

A-A (8 : 1)

This version: ST VIBU internal use only

2.15-0.26

+0.16

1.55 ±0.16

STV0680F_410_pckg.fm

1.09 ±0.15(note 3)

CDSTV0680F-C

Commercial in confidence

Page 54

PRELIMINARY

]D[2]D[3]D[4]

]

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

12. VV6500 Pinout and pin descriptions (48pin LCC package)

12.1 Pinout

VSSCORE

RESET

D[0

D[1

VSSIO

March 2000

STV0680A + VV6444/6410/6500

SRAMVSS

1920212223242526272829

SCL SDA

POR

SUSPEND

LST/D[5

FST/D[6

C L K I/C L K IP

CLKIN

D[7

QCK

VDDIO

VV6500

48LCC

VBUS

VBASE

REG3V3

VDDCORE

ure 11 : 48 pin LCC package pin assignment

VRT

VBG

AUD3V3

VCMTCAS

VID3V3

AVSS

VDDHI

VBLOOM

VBLTW

543214847464544

AIN

AOUTP

AOUTN

This version: ST VIBU internal use only

STV0680F_500_pckg.fm

CDSTV0680F-C

Commercial in confidence

Page 55

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

12.2 VV6500 pin descriptions

Name Pin Number Type Description

POWER SUPPLIES

AVSS 11 GND

SRAMVSS 21 GND

VDDcore 44 PWR

VDDio 43 PWR

VSScore 29 GND

VSSio 30 GND

SRAMVSS 21 GND

Core analog ground and reference supplies. In-column SRAM analog ground. Digital logic power. Digital pad ring power. Digital logic ground. Digital pad ring ground. In-column SRAM analogue ground.

ANALOG SIGNALS

Vbloom 8 OA Anti-blooming pixel reset voltage VBLTW 7 OA Bitline test white level reference

March 2000

VBG 1 OA Internally generated bandgap reference voltage 1.22V VCMTCAS 13 IA Common-mode input for column pre-amp. VRT 2 IA Pixel reset voltage AIN 4 IA Analog input to Audio Amplifier AOutP 5 OA Analog output of Audio Amplifier (positive) AOutN 6 OA Analog output of Audio Amplifier (negative) VDDHI 9 IA Incoming power supply 4 -> 6V VBase 46 OA Drive for base of external bipolar Vbus 47 IA Incoming power supply 3.3 -> 6V Reg3V3 45 OA On-chip Voltage Regulator Output ARef IA On-chip Audio Amplifier Reference Input Aud3V3 3 OA On-chip Audio Amplifier Voltage Regulator Output Vid3V3 12 OA On-chip Video Supply Voltage Regulator Output PORB 16 OA Power-on Reset (Bar) Output.

DIGITAL VIDEO IN TERFACE

This version: ST VIBU internal use only

D[4] D[3] D[2] D[1] D[0] QCK 42 ODT Tri-stateable data qualification clock.

STV0680F_500_pckg.fm

36 35 34 33 32

ODT Tri-stateable 5-wire output data bus.

- D[4] is the most significant bit.

- D[4:0] have programmable drive strengths 2, 4 and 6 mA

CDSTV0680F-C

Commercial in confidence

Page 56

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

Name Pin Number Type Description

CLKIN 40 BI↑ LVDS negative Clock input LST/D[5] 37 ODT Tri-stateable Line start output

May be configured as tri-stateable output data bit 5 D[5].

FST/D[6] 38 ODT Tri-stateable Frame start signal.

May be configured as tri-stateable output data bit 6 D[6].

D[7] 41 ODT Tri-stateable Data wire (ms data bit).

May be configured as tri-stateable output data bit 6 D[6].

OEB 20 ID↓ Digital output (tri-state) enable.

DIGITAL CONTROL SIGNALS

RESETB 3 1 ID↑ System Reset. Active Low.

May be configured as System Sync. Active Low.

SUSPEND 31 ID↑ USB Suspend Mode Control signal. Active High

STV0680A + VV6444/6410/6500

SERIAL INTERFACE

SCL 18 BI↑ Serial bus clock (input only). SDA 17 BI↑ Serial bus data (bidirectional, open drain).

SYSTEM CLOCKS

CLKI/CLKIP 39 ID↓ Schmitt Buffered Clock input or LVDS positive Clock input

Not connected

NC 10, 14, 19, 22-

28, 48

A Analog Input D Digital Input OA Analog Output ID↑ Digital input with internal pull-up BI Bidirectional ID↓ Digital input with internal pull-down

Not connected

This version: ST VIBU internal use only

BI↑ Bidirectional with internal pull-up OD Digital Output BI↓ Bidirectional with interna l pull -dow n ODT Tri-stateable Digital Outpu t

STV0680F_500_pckg.fm

CDSTV0680F-C

Commercial in confidence

Page 57

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

12.3 VV6500 package Details (48 pin LCC)

Notes.

4. Pixel area of sensor.

1. Die is optically centred.

3. Distance to optical surface of Die.

2. Refractive index of glass is ~1.52.

14.52

14.09

2.67 (note 4)

Pin 1

March 2000

Pin 6

(

)

2.27

1.85

1.120

0.896

0.60

0.50

A-A (6 : 1)

This version: ST VIBU internal use only

STV0680F_500_pckg.fm

CDSTV0680F-C

Commercial in confidence

Page 58

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

STV0680A + VV6444/6410/6500

13. Evaluation kit

STMicroelectronics recommends using the Evaluation Kit (e.g. DCA includes a reference design board ( STV0680A chipset, memory, lens, connectors, LCD, battery holder, push buttons/switches, and other componentry as detailed. The push buttons are arranged for ease of operation as a real ‘camera’. Optional PCB links enable alternate functionality, and demonstration software is included, as detailed in Section 5. allows for picture download, video, and AVI movie clips

! Note

evaluation kit

(PCB0194) have been built, however, these are not identical to the camera described in this reference design.

is not available for STV0680+VV6444. Several small form factor demonstration units

STV-DCA/CIF-R01

STV-DCA/CIF-E01

) camera module, containi ng a STMic roe lec tronics CMOS sensor +

) for initial evaluation and design-in. The STV-

STV0680F_backpages.fm

CDSTV0680F-C

Commercial in confidence

This version: ST VIBU internal use only

Page 59

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

14.Ordering details

Description Part number

STV0680 companion processor (no VfW or RS232 support) STV0680-001

STV0680A companion processor (including VfW and RS232 support) STV0680A-002*

VV6444+STV0680/STV680A designs

LCC packaged CIF Image Sensor (5v) VV6444C001

STV0680/STV0680A + VV6444 Digital Camera Chipset, Reference

Design Manual

VV6410/6500+STV0680A designs

36pin CLCC packaged, microlensed CIF ColourMOS sensor VV6410C036

48pin CLCC packa Digital camera Evaluation Kit for STV0680/STV0680A+VV6410 STV-DCA/CIF-E01 Digital camera Evaluation Kit for STV0680/STV0680A+VV6500 STV-DCA/VGA-E01

ged, microlensed VGA ColourMOS sensor VV6500C001

Available for download from

http://www.vvl.co.uk/tech_support/

home.htm

March 2000

STV0680/STV0680A + VV6410/6500 Digital Camera Chipset, Reference

Design Manual

Table 26 :

* Note: The variant number of STV0680A is indicated by the suffix -001, 002, 003, etc. Contact STMicroelectronics for latest information

Ordering details

Available for download from

http://www.vvl.co.uk/tech_support/

home.htm

Technical support

This document and other related technical support information, such as datasheets, software downloads,etc for STMicroelectronics Imaging Division Products can be found at http://www.vvl.co.uk/tech_support/home.htm

Note

: All the above web addresses when accessing from within ST should read www.edb.st.com rather than www.vvl.co.uk

This version: ST VIBU internal use only

STV0680F_backpages.f

CDSTV0680F-C

Commercial in confidence

Page 60

PRELIMINARY

STV0680A + VV6444/6410/6500 Digital Camera Chipset; Customer Datasheet, Rev 3.0,

March 2000

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics

The ST logo is a registered trademark of STMicroelectronics

www.vvl.co.uk

www.st.com

asiapacific_sales@vvl.co.uk

central_europe_sales@vvl.co.uk

france_sales@vvl.co.uk

japan_sales@vvl.co.uk

nordic_sales@vvl.co.uk

southern_europe_sales@vvl.co.uk

uk_eire_sales@vvl.co.uk

usa_sales@vvl.co.uk

STMicroelectronics, Imaging Division

CDSTV0680F-C

Datasheet VV6500C001, VV6444C001, VV6410C036, STV-DCA-VGA-E01, STV-DCA-CIF-E01 Datasheet (Vision)

Specifications and Main Features

Frequently Asked Questions

User Manual