ISD1740EYR

Product Overview

Category

ISD1740EYR belongs to the category of integrated circuit (IC) chips.

Use

The ISD1740EYR chip is primarily used for audio recording and playback applications.

Characteristics

• The chip offers high-quality audio recording and playback capabilities.
• It has a compact size, making it suitable for various electronic devices.
• The ISD1740EYR chip provides low power consumption, ensuring efficient operation.
• It supports multiple audio formats, allowing flexibility in usage.

Package

The ISD1740EYR chip is available in a small outline package (SOP).

Essence

The essence of the ISD1740EYR chip lies in its ability to capture and reproduce audio signals with high fidelity.

Packaging/Quantity

The chip is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 2.4V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Recording Time: 40 seconds
• Audio Sampling Rate: 8 kHz
• Bit Resolution: 4-bit ADPCM

Detailed Pin Configuration

The ISD1740EYR chip has the following pin configuration:

1. VDD: Power supply voltage input
2. GND: Ground reference
3. REC: Record control input
4. PLAYE: Playback enable control input
5. SPK+/-: Speaker output
6. MIC: Microphone input
7. VREF: Reference voltage input
8. CE: Chip enable control input
9. CS: Chip select control input
10. SDA: Serial data input/output
11. SCL: Serial clock input
12. RESET: Reset control input

Functional Features

• Audio Recording: The chip allows users to record audio signals using an external microphone.
• Audio Playback: It enables the playback of previously recorded audio through an external speaker.
• Non-Volatile Storage: The ISD1740EYR chip retains the recorded audio even when power is disconnected.
• Serial Interface: It supports a serial interface for easy integration with microcontrollers or other devices.

Advantages and Disadvantages

Advantages

• High-quality audio recording and playback
• Low power consumption
• Compact size
• Multiple audio format support
• Non-volatile storage

Disadvantages

• Limited maximum recording time (40 seconds)
• Lower bit resolution compared to higher-end audio chips

Working Principles

The ISD1740EYR chip utilizes analog-to-digital conversion (ADC) to convert incoming audio signals into digital data during recording. During playback, it employs digital-to-analog conversion (DAC) to convert the stored digital data back into analog audio signals.

Detailed Application Field Plans

The ISD1740EYR chip finds applications in various fields, including: 1. Voice recorders 2. Toys and games 3. Security systems 4. Automotive electronics 5. Medical devices

Detailed and Complete Alternative Models

1. ISD1760PYR: Similar to ISD1740EYR but with extended recording time (60 seconds).
2. ISD1790PYR: Higher-end model with increased bit resolution (8-bit ADPCM) and longer recording time (120 seconds).
3. ISD1820SYR: Basic audio recording and playback chip with lower cost and shorter recording time (20 seconds).

(Note: This list is not exhaustive and there may be other alternative models available in the market.)

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