Datasheet

Voice Recording Module
Description
The voice recording module offers true single chip solid state storage capability an
d requires no software or micro-
controller support. It provides high quality recording and playback with single 40 second message.
Features
 Non volatile flash memory technology
 Up to
40sec high quality audio recording
 No battery back up requi
red
 User fri
endly, easy to use operati
on
 2-key
s operation, record and play
back
 Low power consumption
 LED to indicate recording
 Built-in condenser m
i
c
 Aut
omatic
power down
 W
ide Operation volta
ge
Operation
Recording
1. Press key REC to start recording, release key when recording complete. LED will light up during recording. If
voice m
essage is longer than 40sec, LED will turn off and stop recording.
2. If there is a message recorded previously, press REC will erase the previous and record the new one.
Play Back
1. Press
key PLAY once to start play back. The message will be played back from the beginning until ended. During
play mode, if key PLAY is pressed, the message will stop immediately.
2. If the newly recorded message is shorter than the previously recorded message, the remaining portion of the
p
revious message will be erased.
St
andby
The module will automatically enter standby mode after recording or playback operation is completed.
Electrical Spec
Param
ete
r
Min Typical Max Unit
PCB Layout of the module
Size : 35 x 23 mm
Spk
RecPlay
LED
Mic
Operation Voltage 3.5 5 6.5 V
Operation Current (no load)
Recording
Playback
30
20
32
25
mA
Standby Current 10 14 uA
GND
+5V
Sampling Rate 12 KHz
Application Note
1. users can appl
y either DC5V, AAx4 or Lithium battery of 3.7V to operate the modul
e