ISD4004-10MS

Product Overview

Category

ISD4004-10MS belongs to the category of integrated circuit (IC) chips.

Use

The ISD4004-10MS chip is primarily used for audio recording and playback applications.

Characteristics

• The chip offers high-quality audio recording and playback capabilities.
• It has a low power consumption feature, making it suitable for portable devices.
• ISD4004-10MS supports multiple audio formats, including PCM and ADPCM.
• It provides non-volatile storage, ensuring data retention even when power is lost.

Package

ISD4004-10MS is available in a standard 28-pin plastic dual inline package (PDIP).

Essence

The essence of ISD4004-10MS lies in its ability to provide reliable and efficient audio recording and playback functionality in various electronic devices.

Packaging/Quantity

The chip is typically sold in reels or tubes, with each containing a specific quantity of ISD4004-10MS units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 2.4V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Recording Time: 240 seconds (at 10kHz sampling rate)
• Audio Formats: PCM, ADPCM
• Sampling Rates: 4kHz - 12kHz
• Bit Resolution: 8-bit
• Number of Channels: Mono

Detailed Pin Configuration

The ISD4004-10MS chip has a total of 28 pins, each serving a specific function. The pin configuration is as follows:

1. VDD - Power supply voltage input
2. VSS - Ground reference
3. XTI - Crystal oscillator input
4. XTO - Crystal oscillator output
5. /CS - Chip select input
6. /WR - Write enable input
7. /RD - Read enable input
8. /RESET - Reset input
9. A0-A10 - Address inputs
10. DQ0-DQ7 - Data inputs/outputs
11. /INT - Interrupt output
12. /BUSY - Busy status output
13. /WP - Write protect input
14. VREF - Reference voltage output
15. AGND - Analog ground reference
16. MICIN+ - Microphone positive input
17. MICIN- - Microphone negative input
18. SPKOUT+ - Speaker positive output
19. SPKOUT- - Speaker negative output
20. VDDA - Analog power supply voltage input
21. VSSA - Analog ground reference
22. VDDP - Power amplifier power supply voltage input
23. VSSP - Power amplifier ground reference
24. NC - No connection
25. NC - No connection
26. NC - No connection
27. NC - No connection
28. NC - No connection

Functional Features

The ISD4004-10MS chip offers the following functional features:

1. Audio Recording: The chip allows users to record audio signals using an external microphone.
2. Audio Playback: It enables the playback of recorded audio through an external speaker.
3. Non-Volatile Storage: The chip provides non-volatile storage for audio data, ensuring data retention even during power loss.
4. Sampling Rate Control: Users can adjust the sampling rate to achieve desired audio quality and storage duration.
5. Low Power Consumption: ISD4004-10MS is designed to consume minimal power, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• High-quality audio recording and playback capabilities
• Non-volatile storage ensures data retention
• Low power consumption
• Multiple audio formats supported

Disadvantages

• Limited maximum recording time (240 seconds)
• Bit resolution limited to 8-bit
• Mono audio output only

Working Principles

The ISD4004-10MS chip operates based on the principle of analog-to-digital conversion for recording and digital-to-analog conversion for playback. When recording, the chip converts the analog audio signal into a digital format and stores it in its non-volatile memory. During playback, the stored digital data is converted back into an analog signal, which can be amplified and played through an external speaker.

Detailed Application Field Plans

ISD4004-10MS finds applications in various electronic devices that require audio recording and playback capabilities. Some potential application fields include:

1. Voice Recorders: The chip can be used in portable voice recorders for capturing and playing back voice memos or interviews.
2. Toys: It can be integrated into toys to provide sound effects or voice recording/playback features.
3. Security Systems: ISD4004-10MS can be utilized in security systems for recording and playing back audio alerts or messages.