ISD17240SY

Product Summary

The ISD17240SY is a Multi-Message Single－Chip Voice record and playback device ideally suited to a variety of electronic systems. The message duration is user selectable in ranges from 26 seconds to 120 seconds, depending on the specific device. The sampling frequency of each device can also be adjusted from 4 kHz to 12 kHz with an external resistor, giving the user greater flexibility in duration versus recording quality for each application. Operating voltage spans a range from 2.4 V to 5.5 V to ensure that the ISD17240SY is optimized for a wide range of battery or line－powered applications. The ISD17240SY is designed for operation in either standalone or microcontroller (SPI) mode. The ISD17240SY incorporates a proprietary message management system that allows the chip to self－manage address locations for multiple messages. This unique feature provides sophisticated messaging flexibility in a simple push－button environment. The devices include an on－chip oscillator (with external resistor control), microphone preamplifier with Automatic Gain Control (AGC), an auxiliary analog input, antialiasing filter, Multi－Level Storage (MLS) array, smoothing filter, volume control, Pulse Width Modulation (PWM) Class D speaker driver, and current/voltage output.

Parametrics

ISD17240SY absolute maximum ratings: (1) Junction temperature: 150℃; (2) Storage temperature range: －65℃ to +150℃; (3) Voltage Applied to any pins: (VSS － 0.3V) to (VCC + 0.3V); (4) Voltage applied to any pin (Input current limited to +/－20 mA): (VSS – 1.0V) to (VCC + 1.0V); (5) Power supply voltage to ground potential: －0.3V to +7.0V; (6) Junction temperature: 150℃; (7) Storage temperature range: －65℃ to +150℃; (8) Voltage Applied to any pads: (VSS － 0.3V) to (VCC + 0.3V); (9) Power supply voltage to ground potential: －0.3V to +7.0V.

Features

ISD17240SY features: (1) Two individual input channels: MIC+/MIC－: differential microphone inputs with AGC (Automatic Gain Control); (2) Two individual input channels: AnaIn: single－ended auxiliary analog input for recording or feed－through; (3) Dual output channels: Differential PWM Class D speaker outputs directly drives an 8 Ω speaker or a typical buzzer; (4) Dual output channels: Configurable AUD (current) or AUX (voltage) single－ended output drives external audio amplifier; (5) ChipCorder standard features: High－quality, natural voice and audio reproduction; (6) ChipCorder standard features: 2.4V to 5.5V operating voltage; (7) ChipCorder standard features: 100－year message retention (typical); (8) ChipCorder standard features: 100,000 record cycles (typical).

Diagrams