isd1740a Winbond Electronics Corp America, isd1740a Datasheet - Page 5

• Manufacturer Part Number: isd1740a
• Description: Multi-message Single-chip Voice Record&playback Devices
• Manufacturer: Winbond Electronics Corp America

2 FEATURES
x
x
x
O Message and operation indicators
O Two individual input channels
O Dual output channels
x
x
O Package options: available in die only
Confidential
Integrated message management systems for single-chip, push-button applications
o REC : level-trigger for recording
o
o
o
o
o RDY: ready or busy status indication
o
o Automatic power-down after each operation cycle
Selectable sampling frequency controlled by an external oscillator resistor
Selectable message duration
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
o MIC+/MIC-: differential microphone inputs with AGC (Automatic Gain Control)
o AnaIn: single-ended auxiliary analog input for recording or feed-through
o PWM Class D speaker amplifier to directly drive an 8 Ÿ 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: 0qC to +50qC for die only
Sampling Frequency
Rosc
Device
Duration
PLAY
ERASE
FWD
RESET
VOL
: 8 levels output volume control
: edge-trigger to advance to the next message or fast message scan during the playback
: edge-trigger for individual message or level-trigger for sequential playback
: edge-triggered erase for first or last message or level-triggered erase for all messages
: bring back to the default state
12 kHz
26 ~ 80 sec
60 k:
ISD1740A
80 k:
8 kHz
33 ~ 100 sec
ISD1750A
- 5 -
6.4 kHz
100 k:
5.3 kHz
120 k:
Publication Release Date: March 28, 2005
40 ~ 120 sec
ISD1760A
ISD1700A SERIES
160 k:
4 kHz
Revision A0