ISD1700 SERIES
2 FEATURES
y
Integrated message management systems for single-chip, push-button applications
o
o
o
REC : level-trigger for recording
PLAY : edge-trigger for individual message or level-trigger for looping playback sequentially
ERASE : edge-triggered erase for first or last message or level-triggered erase for all messages
FWD : edge-trigger to advance to the next message or fast message scan during the playback
VOL : 8 levels output volume control
o
o
o
: ready or busy status indication
RDY INT
o
RESET : return to the default state
o Automatic power-down after each operation cycle
y
Selectable sampling frequency controlled by an external oscillator resistor
Sampling Frequency
Rosc
12 kHz
8 kHz
6.4 kHz
5.3 kHz
4 kHz
y
Selectable
message
53 kΩ
80 kΩ
100 kΩ
120 kΩ
160 kΩ
duration
o A wide range selection from 20 secs to 480 secs pending upon sampling frequency chosen
Sample Freq. ISD1730 ISD1740 ISD1750 ISD1760 ISD1790 ISD17120 ISD17150 ISD17180 ISD17210 ISD17240
20 secs
30 secs
37 secs
45 secs
60 secs
26 secs
40 secs
50 secs
60 secs
33 secs
50 secs
62 secs
75 secs
40 secs
60 secs
60 secs
80 secs 100 secs 120 secs 140 secs 160 secs
12 kHz
8 kHz
90 secs 120 secs 150 secs 180 secs 210 secs 240 secs
75 secs 112 secs 150 secs 187 secs 225 secs 262 secs 300 secs
90 secs 135 secs 181 secs 226 secs 271 secs 317 secs 362 secs
6.4 kHz
5.3 kHz
4 kHz
80 secs 100 secs 120 secs 180 secs 240 secs 300 secs 360 secs 420 secs 480 secs
y
y
Message and operation indicators
o Four customizable Sound Effects (SEs) for audible indication
o Optional vAlert (voiceAlert) to indicate the presence of new messages
o LED: stay on during recording, blink during playback, forward and erase operations
Dual operating modes
o Standalone mode:
Integrated message management techniques
Automatic power-down after each operation cycle
o SPI mode:
Fully user selectable and controllable options via APC register and various SPI commands
y
y
y
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 Differential PWM Class D speaker outputs directly drives an 8 Ω speaker or a typical buzzer
o Configurable AUD (current) or AUX (voltage) single-ended output drives external audio 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 100,000 record cycles (typical)
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