This document is an introduction to ISD products, providing detailed descriptions of the features and characteristics of the product.
The ISD33060/075/090/120-4 products are single-chip CMOS voice record/playback solutions designed for 1- to 2-minute messaging applications in cellular phones and portable devices. These devices operate on a single +3 volt supply and include an on-chip oscillator, antialiasing filter, smoothing filter, AutoMute feature, audio amplifier, and high-density multilevel storage array.
Recordings are stored directly into on-chip nonvolatile memory cells without digitization or compression, providing zero-power message storage with a typical retention of 100 years. The devices support multiple durations (60, 75, 90, and 120 seconds) and can be controlled via a four-wire SPI interface or Microwire Serial Interface by a microcontroller.
| Supply Voltage | +3 volt |
|---|---|
| Operating Current (Playback) | 25 mA (typical) |
| Operating Current (Record) | 30 mA (typical) |
| Standby Current | 1 uA (typical) |
| Message Retention | 100-year message retention (typical) |
| Record Cycles | 100,000 record cycles (typical) |
The ISD33060/075/090/120-4 Products provide single-chip solutions at 60, 75, 90, and 120 seconds.
The devices are offered at 4.0, 5.3, 6.4, and 8.0 KHz sampling frequencies.
Address and control are accomplished through a Serial Peripheral Interface (SPI) or Microwire Serial Interface.