555 color amplification photo time exposure and acousto-optic alarm device

Published:2011/5/24 2:51:00 Author:TaoXi | Keyword: color amplification, photo, time exposure, acousto-optic, alarm | From:SeekIC

Related components PDF download: NE555VT66A21S9013 IC2 uses the audion type music IC VT66A. It has two kind of trigger mode: S mode and L mode. Here we use the S mode, this device will get the electricity and trigger for one time if the J1-2 closes, it sends out a song in the memory, after playing, this device will be in the static. The VT66A mode has the built-in power output transistor, the output port pin-3 can be connected with the 8 ohm speaker to send out voice, and there is no need to connect the external audion to drive. VT66A's maximum output power is 300mW, it's static current is less than 0.5 uA.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Signal_Processing/555_color_amplification_photo_time_exposure_and_acousto_optic_alarm_device.html

Print this Page | Comments | Reading(3)