isd18b00 Winbond Electronics Corp America, isd18b00 Datasheet - Page 9

• Manufacturer Part Number: isd18b00
• Description: Single-chip, Single-message Voice Record/playback Device
• Manufacturer: Winbond Electronics Corp America

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5.5. Sound Effect (
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5.6. Microphone amplifier gain
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5.7. Playback (supersedes Record) Operation :
•
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5.8. Feed-Through mode Operation:
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•
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5.9.
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5.10.
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5.11. Rosc Operation:
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Holding
Fig. 5: Looping playback function via
Beeping feature for recording. Once active, one-beep indicates the start of recording and two-beep
represents the end of recording.
Two external resistors, R
incoming signal.
Playback takes precedence over the Recording operation.
If either
playback of the just-recorded message performs accordingly.
As
If either
will be recorded into memory while the Feed-Through mode is still on.
After
play the recorded message. Once playback is completed, the feed-through feature resumes.
Also,
Also,
When the R
accordingly.
LEDR
LEDP
LEDP
SPK+
LEDR
PlayL
SPK-
LEDR
LEDP
FT
FT
LEDR
LEDP
stays on during playback.
T
stays on during recording.
Operation:
is held Low, the input signal from MICIN will directly transmit to the speaker outputs.
Deb
PLAYL
PLAYE
RECE
Operation :
is enabled, activating either
T
f
OSC
pulses Low momentarily at the end of recording.
pulses Low momentarily at the end of playback operation.
SE
is triggered or
or
Low constantly will perform looping playback function.
varies from 80 KΩ to 160 KΩ, the sampling rate changes from 8 kHz to 4 kHz
) Operation:
PLAYL
I
and R
is activated during a recording cycle, the recording immediately ceases and
RECL
O
, are used to adjust the microphone amplifier gain with respect to the
PLAYL
is held Low simultaneously after
PLAYE
T
D2
- 9 -
or
PRELIMINARY ISD18B00
PLAYL
will first disable the feed-through path and
T
D2
Publication Release Date: Oct 2, 2008
FT
is enabled, then input signal
Revision 0.5