參數(shù)資料
型號(hào)： VV6410C036
廠(chǎng)商： STMICROELECTRONICS
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, CQCC36
封裝： LCC-36
文件頁(yè)數(shù)： 5/63頁(yè)
文件大?。?/td> 563K
代理商： VV6410C036
Version 3.4
13/63
STV0680B + VV6444/6410/6500
Detailed features
2.2.5
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:
Note: 1 Where a given function has a sound associated with it stored in SDRAM, the piezo buzzer does not
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.
2 A demonstration PC application “CustomSounds” is available from ST, however this is not intended
for end-users. Source code is available which allows the EOM to build their own PC application
using the SDK.
2.3
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 ‘a(chǎn)cceptable’ image quality as the battery voltage falls. The chosen threshold level is
determined by a resistor value, as shown in
Chapter 6 Where no USB has been detected, 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 compliance tests that such additional hardware is included
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
Audio record and playback
2.4.1
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
Sound delete
Power Off
Continuous clip delete
Good picture
Clear memory
Bad picture
(Normally due to insufficient light)
Confirm action
Memory full
Low power
Self timer #1
Flashgun ON
Self timer #2
Flashgun OFF
Low resolution
Flashgun Trigger
High resolution
Frequency 50kHz
Picture delete
Frequency 60kHz
Table 4 : List of custom sound functions
相關(guān)PDF資料
PDF描述
VVZ70-16IO7 THYRISTOR MODULE|3-PH FULL-WAVE|HALF-CNTLD|CC|1.6KV V(RRM)|70A I(T)
VWA-0 Female Disconnect; Tab Width:0.250"
PBT-4B BRASS, TAB TERMINAL
PBT-4A 1.5 mm2, BRASS, PUSH-ON TERMINAL
VWO85-14IO1 THYRISTOR MODULE|AC SWITCH|TRIPLE|FULLY-CNTLD|1.4KV V(RRM)|27A I(T)
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