مدار مجتمع (آی سی) آی‌سی صوتی ویژه

Product Attributes

Introduction

The ISD1600B Series is a high quality, fully integrated, single-chip single-message voice record and playback device ideally suited to a variety of electronic systems. The message duration is user selectable in ranges from 6.6 seconds to 40 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 ISD1600B devices are optimized for a wide range of battery or line-powered applications. The devices include an on-chip oscillator (with external resistor control), microphone preamplifier with Automatic Gain Control (AGC), anti-aliasing filter, Multi-Level Storage (MLS) array, smoothing filter, Pulse Width Modulation (PWM) Class D speaker driver, and current output. Voice signals can be fed into the chip through a differential microphone input for recording. The PWM output can directly drive a standard 8 Ω speaker or a typical buzzer, while the separate single-ended current output can drive an external amplifier. Recordings are stored into the on-chip Flash memory cells, providing zero-power message storage. This unique single-chip solution is made possible through patented Multi-Level Storage (MLS) technology. Audio data are stored directly in solid-state memory without digital compression, providing superior quality voice and music reproduction.

Features

• User-friendly single-chip, single-message voice record & playback devices
• Wide operating voltage: 2.4V to 5.5V
• Push-button interface
  • Record is level-triggered
  • Playback is either edge- or level-triggered
• Selectable sampling frequency controlled by an external oscillator resistor
• Variable duration selected by external oscillator resistor
• Message and operation indicators
  • LED: stay on during recording, blink during playback operation
• Automatic power-down mode
  • Enters standby mode immediately after a record or playback cycle
  • Standby current: 1μA typical and 10μA maximum
• Dual output channels
  • PWM Class D speaker amplifier to directly drive an 8 Ω speaker or a typical buzzer
  • AUD single-ended current output to drive external power amplifier
• ChipCorder standard features
  • High-quality, natural voice and audio reproduction
  • Zero-power message storage: Eliminates battery backup circuits
  • 100-year message retention (typical)
  • 100,000 record cycles (typical)
• Package options: Leaded and Lead-free packaged units
• Available in die and 16L 150mil SOIC
• Temperature options:
  • Commercial: 0°C to +50°C (Die); 0°C to +70°C (Packaged)
  • Industrial: -40°C to +85°C (Packaged)