STV-DCA/CIF-E01 STMICROELECTRONICS [STMicroelectronics], STV-DCA/CIF-E01 Datasheet - Page 13

• Manufacturer Part Number: STV-DCA/CIF-E01
• Description: DUAL-MODE DIGITAL CAMERA CHIPSET
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STV0680B + VV6444/6410/6500
2.2.5
Note: 1 Where a given function has a sound associated with it stored in SDRAM, the piezo buzzer does not
2.3
Note:
2.4
2.4.1
2 A demonstration PC application “CustomSounds” is available from ST, however this is not intended
It may be a requirement of certain USB compliance tests that such additional hardware is included
Custom sounds
A camera which includes STV0680B-003 and Audio playback hardware can have a set of custom
sounds downloaded from a PC application. A different sound can be associated with each of the
following functions:
give any beeps for that function. Not all functions need to have custom sounds associated with
them, this is the choice of the user or OEM.
for end-users. Source code is available which allows the EOM to build their own PC application
using the SDK.
Battery level detect and USB auto-switch
An on-chip battery level detector on STV0680B 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 chosen threshold level is
determined by a resistor value, as shown in
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.
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.
Audio record and playback
Record
A camera which includes STV0680B-003 and a microphone, comparator and other periphery (also
utilizing the sensor pre-amplifier) can be used to record sounds which are stored in the same way
as images. STV0680B-003 will auto-detect the presence of Audio record hardware and include
Power On
Power Off
Good picture
Bad picture
(Normally due to insufficient light)
Memory full
Self timer #1
Low resolution
High resolution
Picture delete
Self timer #2
Table 4 : List of custom sound functions
Version 3.4
Chapter 6
Sound delete
Continuous clip delete
Clear memory
Confirm action
Low power
Flashgun ON
Flashgun OFF
Flashgun Trigger
Frequency 50kHz
Frequency 60kHz
Where no USB has been detected, the LCD
Detailed features
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