ISD4004-12MEI

Product Overview

Category

ISD4004-12MEI belongs to the category of integrated circuits (ICs).

Use

It is primarily used for audio recording and playback applications.

Characteristics

• High-quality audio recording and playback capabilities
• Low power consumption
• Non-volatile storage
• Easy integration into various electronic devices

Package

ISD4004-12MEI is available in a standard 28-pin plastic dual inline package (PDIP).

Essence

The essence of ISD4004-12MEI lies in its ability to provide reliable and efficient audio recording and playback functionality.

Packaging/Quantity

ISD4004-12MEI is typically packaged in reels, with each reel containing a quantity of 250 units.

Specifications

• Operating Voltage: 2.4V - 5.5V
• Sampling Frequency: 12 kHz
• Maximum Recording Time: 40 seconds
• Audio Output: Mono
• Bit Resolution: 12 bits
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VCC - Power supply voltage
2. GND - Ground
3. CE - Chip enable
4. WE - Write enable
5. OE - Output enable
6. RESET - Reset input
7. XTI - Crystal oscillator input
8. XTO - Crystal oscillator output
9. NC - No connection
10. A0-A11 - Address inputs
11. DQ0-DQ11 - Data inputs/outputs
12. CS - Chip select
13. PD - Power-down mode
14. VREF - Reference voltage
15. AGC - Automatic gain control
16. MIC - Microphone input
17. SPK+ - Speaker positive terminal
18. SPK- - Speaker negative terminal
19. VDD - Power supply voltage
20. NC - No connection
21. NC - No connection
22. NC - No connection
23. NC - No connection
24. NC - No connection
25. NC - No connection
26. NC - No connection
27. NC - No connection
28. NC - No connection

Functional Features

• High-quality audio recording and playback with low distortion
• Non-volatile storage ensures data retention even during power loss
• Simple interface for easy integration into various electronic systems
• On-chip automatic gain control (AGC) for optimal audio performance
• Power-down mode for reduced power consumption during idle periods

Advantages and Disadvantages

Advantages

• High audio quality with low distortion
• Easy integration into electronic devices
• Non-volatile storage for data retention
• Low power consumption

Disadvantages

• Limited maximum recording time (40 seconds)
• Mono audio output only

Working Principles

ISD4004-12MEI utilizes flash memory technology to store audio data. It employs an analog-to-digital converter (ADC) for recording and a digital-to-analog converter (DAC) for playback. The chip's internal circuitry handles the conversion, storage, and retrieval of audio signals.

During recording, the microphone input captures analog audio signals, which are then converted into digital format by the ADC. The digital audio data is stored in the flash memory. During playback, the stored digital audio data is retrieved from the flash memory and converted back into analog format by the DAC. The analog audio signals are then amplified and sent to the speaker output.

Detailed Application Field Plans

ISD4004-12MEI finds applications in various fields, including: 1. Voice recorders 2. Message playback systems 3. Toys and games with audio features 4. Security systems with audio recording capabilities 5. Automotive audio systems

Detailed and Complete Alternative Models

1. ISD4004-08MEI: Similar to ISD4004-12MEI but with a maximum recording time of 8 seconds.
2. ISD4004-16MEI: Similar to ISD4004-12MEI but with a maximum recording time of 16 seconds.
3. ISD4004-32MEI: Similar to ISD4004-12MEI but with a maximum recording time of 32 seconds.
4. ISD4004-64MEI: Similar to ISD4004-12MEI but with a maximum recording time of 64 seconds.

These alternative models offer different recording time options to suit specific application requirements.

In conclusion, ISD4004-12MEI is an integrated circuit designed for audio recording and playback applications. It offers high-quality audio performance, low power consumption, and non-volatile storage. While it has limitations in terms of maximum recording time and mono audio output, it provides a reliable solution for various electronic devices requiring audio functionality.