ISD2540SR

Product Overview

Category

ISD2540SR belongs to the category of audio recording and playback integrated circuits.

Use

It is primarily used for storing and playing back audio recordings in various electronic devices.

Characteristics

• Compact size
• Low power consumption
• High-quality audio playback
• Easy integration into electronic devices

Package

ISD2540SR comes in a standard package, which includes the integrated circuit chip and necessary components for operation.

Essence

The essence of ISD2540SR lies in its ability to provide reliable and high-quality audio recording and playback functionality.

Packaging/Quantity

ISD2540SR is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Power supply voltage: 2.4V - 5.5V
• Maximum recording duration: 40 seconds
• Sampling frequency: 8 kHz
• Audio format: PCM
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

1. VDD: Power supply voltage input
2. GND: Ground connection
3. REC: Recording control pin
4. PLAYE: Playback enable control pin
5. SPK+/-: Speaker output pins
6. MIC+/-: Microphone input pins
7. VREF: Reference voltage input
8. OSC: Oscillator input
9. CE: Chip enable control pin
10. RESET: Reset control pin

Functional Features

• Simple recording and playback control interface
• Non-volatile storage of audio recordings
• Built-in audio amplifier for direct speaker connection
• Low-power standby mode for energy efficiency
• Automatic power-down function when not in use

Advantages and Disadvantages

Advantages

• Compact size allows for easy integration into various electronic devices
• High-quality audio playback ensures a pleasant user experience
• Low power consumption prolongs battery life in portable devices

Disadvantages

• Limited recording duration of 40 seconds may not be sufficient for certain applications
• PCM audio format may not support advanced audio compression techniques

Working Principles

ISD2540SR utilizes flash memory technology to store audio recordings. When the REC pin is activated, the integrated circuit converts analog audio signals from the microphone input into digital format and stores them in its non-volatile memory. During playback, the stored audio data is retrieved and converted back into analog signals, which are then amplified and output through the speaker pins.

Detailed Application Field Plans

ISD2540SR finds applications in various electronic devices that require audio recording and playback capabilities. Some potential application fields include: 1. Voice recorders 2. Toys and games with sound effects 3. Security systems with voice prompts 4. Automotive audio systems 5. Medical devices with audio feedback

Detailed and Complete Alternative Models

1. ISD2560SR: Similar to ISD2540SR but with an extended recording duration of 60 seconds.
2. ISD25120SR: Offers a longer recording duration of 120 seconds compared to ISD2540SR.
3. ISD25320SR: Provides an even longer recording duration of 320 seconds while maintaining similar characteristics to ISD2540SR.

These alternative models offer increased recording durations to cater to specific application requirements.

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