ISD4004-08MEIR

Product Overview

Category

ISD4004-08MEIR belongs to the category of integrated circuit (IC) chips.

Use

It is primarily used for audio recording and playback applications.

Characteristics

• High-quality audio recording and playback capabilities
• Low power consumption
• Compact size
• Easy integration with other electronic systems

Package

ISD4004-08MEIR is available in a standard integrated circuit package.

Essence

The essence of ISD4004-08MEIR lies in its ability to provide reliable and efficient audio recording and playback functionality.

Packaging/Quantity

ISD4004-08MEIR is typically sold in packs containing multiple units, depending on the supplier. The exact quantity may vary.

Specifications

• Maximum Recording Time: 8 minutes
• Sampling Frequency: 4 kHz
• Bit Resolution: 8 bits
• Operating Voltage: 2.4V - 5.5V
• Power Consumption:
  • Standby Mode: <1 µA
  • Active Mode: Varies based on usage

Detailed Pin Configuration

The ISD4004-08MEIR chip has the following pin configuration:

1. VCC: 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. PD: Power-down control input
10. XTI/CTI: Crystal oscillator input/Clock input
11. XTO/CTO: Crystal oscillator output/Clock output
12. NC: No connection

Functional Features

• Audio recording and playback with high fidelity
• Non-volatile storage of recorded audio
• Multiple playback modes (continuous, single-shot, etc.)
• Adjustable volume control
• External trigger inputs for recording and playback control

Advantages and Disadvantages

Advantages

• High-quality audio reproduction
• Low power consumption
• Compact size for easy integration into various applications
• Versatile playback modes for different requirements

Disadvantages

• Limited maximum recording time (8 minutes)
• Bit resolution limited to 8 bits

Working Principles

ISD4004-08MEIR utilizes flash memory technology to store and retrieve audio data. It employs a combination of analog and digital signal processing techniques to ensure accurate recording and playback.

During recording, the chip converts analog audio signals from the microphone input into digital format and stores them in its non-volatile memory. During playback, the stored digital audio data is converted back into analog signals and amplified for output through the speaker.

Detailed Application Field Plans

ISD4004-08MEIR finds applications in various fields, including but not limited to:

1. Voice recorders
2. Message playback systems
3. Security systems with audio recording capabilities
4. Toys and interactive devices requiring sound playback
5. Automotive audio systems
6. Medical devices with audio feedback

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to ISD4004-08MEIR are:

1. ISD4004-12MEIR: Offers a longer maximum recording time of 12 minutes.
2. ISD4004-16MEIR: Provides an extended maximum recording time of 16 minutes.
3. ISD4004-20MEIR: Offers even more recording time with a maximum of 20 minutes.

These alternative models can be considered based on specific project requirements and desired recording durations.

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