ISD1700A SERIES
2 FEATURES
•
Integrated message management systems for single-chip, push-button applications
o
REC
:
level-trigger for recording
o
PLAY
:
edge-trigger for individual message or level-trigger for sequential playback
o
ERASE
:
edge-triggered erase for first or last message or level-triggered erase for all messages
o
FWD
:
edge-trigger to advance to the next message or fast message scan during the playback
o
VOL
: 8 levels output volume control
o
RDY: ready or busy status indication
o
RESET
: bring back to the default state
o
Automatic power-down after each operation cycle
•
Selectable sampling frequency controlled by an external oscillator resistor
Sampling Frequency
Rosc
12 kHz
60 kΩ
ISD1740A
26 ~ 80 sec
8 kHz
80 kΩ
6.4 kHz
100 kΩ
5.3 kHz
120 kΩ
4 kHz
160 kΩ
•
Selectable message duration
Device
Duration
ISD1750A
33 ~ 100 sec
ISD1760A
40 ~ 120 sec
Message and operation indicators
o
Four customizable Sound Effects (SE) for audible indications
o
Optional vAlert (voiceAlert) to indicate the presence of new messages
o
LED: stay on during recording, blink during playback, forward and erase operations
Two individual input channels
o
MIC+/MIC-: differential microphone inputs with AGC (Automatic Gain Control)
o
AnaIn: single-ended auxiliary analog input for recording or feed-through
Dual output channels
o
PWM Class D speaker amplifier to directly drive an 8
Ω
speaker or a typical buzzer
o
AUD single-ended current output to drive external power amplifier
ChipCorder standard features
o
High-quality, natural voice and audio reproduction
o
2.4V to 5.5V operating voltage
o
100-year message retention (typical)
o
10,000 record cycles (typical)
•
•
Commercial Temperature grade: 0°C to +50°C for die only
Package options: available in die only
Confidential
-5-
Publication Release Date: March 28, 2005
Revision A0
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