參數(shù)資料
型號(hào)： VV6410C036
廠商： STMICROELECTRONICS
元件分類： 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)： 4/63頁(yè)
文件大?。?/td> 563K
代理商： VV6410C036
Detailed features
STV0680B + VV6444/6410/6500
12/63
Version 3.4
1
Mode button (Wake-up/Switch between modes): This button allows the user (1.1) to wake the
camera up from standby mode when the camera is to be used for taking pictures, or (1.2) to
switch between modes of operation shown in
Chapter 3.
2
Shutter button (Shutter/confirm action): This button allows the user to take a picture or confirm
an action, as shown in
Chapter 3
The modes of operation are described in
Chapter 3.
It may also be desirable to include an on-off slider switch. This has advantages and disadvantages,
and its exact function is discussed further in the reference design available from ST.
Where a flashgun module is included in the camera, it will be necessary to include a flash on/flash
off push button or slider switch, dependant on the exact flashgun module design. possible
implementations are discussed in a separate application note AN1312 regarding flashgun
implementation, available from ST.
2.2.2
LED indicator
An LED display camera status, i.e. to show that the camera is not in Standby/PC suspend mode.
2.2.3
Picture counter using 2 x 7 segment display
STV0680B stores a picture counter value, which shows how many images can still be captured.
STV0680B 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 3). It is
possible to clear the images stored in memory, in order to continue taking pictures. In other modes,
this LCD panel shows displays a 2-character code, which helps the user to navigate around the
modes.
Note:
A CIF camera with STV0680B 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.
For suitable numeric LCD panel types, see
Section 4.8.
2.2.4
Piezo buzzer
An on-chip Pulse Width Modulator (PWM) on STV0680B 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 by the user pressing a button, by re-
connecting the power source, or by connecting a USB/RS232 connection).
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 user presses the capture button, due to picture counter
having reached the maximum 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.
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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