ISD2548SY

Product Overview

Category

ISD2548SY belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for audio recording and playback applications.

Characteristics

• Integrated circuit
• Audio recording and playback capabilities
• Compact size
• Low power consumption

Package

ISD2548SY is typically packaged in a small outline integrated circuit (SOIC) package.

Essence

The essence of ISD2548SY lies in its ability to provide high-quality audio recording and playback functionality in a compact and efficient package.

Packaging/Quantity

ISD2548SY is usually available in reels or tubes, with quantities varying depending on the supplier.

Specifications

• Supply voltage: 2.4V - 5.5V
• Operating temperature range: -40°C to +85°C
• Maximum recording time: 48 seconds
• Sampling frequency: 8 kHz
• Audio format: Linear Pulse Code Modulation (LPCM)
• Number of channels: Mono

Detailed Pin Configuration

1. VDD - Power supply voltage
2. GND - Ground reference
3. REC - Recording control input
4. PLAYE - Playback enable input
5. SPK+ - Speaker positive terminal
6. SPK- - Speaker negative terminal
7. MIC+ - Microphone positive terminal
8. MIC- - Microphone negative terminal
9. VREF - Reference voltage for microphone biasing
10. NC - No connection
11. OSC - Oscillator output
12. OSCIN - Oscillator input
13. CE - Chip enable input
14. CS - Chip select input
15. DI - Data input
16. DO - Data output

Functional Features

• High-quality audio recording and playback
• Simple interface for easy integration into electronic devices
• Low power consumption for extended battery life
• Non-volatile memory for data retention even when power is disconnected
• Built-in audio amplifier for direct connection to a speaker

Advantages and Disadvantages

Advantages

• Compact size allows for easy integration into small electronic devices
• High-quality audio recording and playback capabilities
• Low power consumption extends battery life
• Non-volatile memory ensures data retention

Disadvantages

• Limited maximum recording time of 48 seconds
• Mono audio output only, not suitable for stereo applications

Working Principles

ISD2548SY utilizes non-volatile flash memory technology to store audio data. When the REC pin is activated, the integrated circuit starts recording audio input from the microphone. The recorded audio can be played back by activating the PLAYE pin. The audio signal is then amplified and output through the SPK+ and SPK- pins.

Detailed Application Field Plans

ISD2548SY finds applications in various electronic devices that require audio recording and playback functionality. Some potential application fields include:

1. Voice recorders
2. Toys with sound effects
3. Alarm systems with voice prompts
4. Automotive electronics for voice guidance
5. Medical devices with audio feedback

Detailed and Complete Alternative Models

1. ISD2560 - Similar to ISD2548SY but with an increased maximum recording time of 60 seconds.
2. ISD25120 - Offers extended recording time of up to 120 seconds.
3. ISD2590 - Provides stereo audio output for applications requiring dual-channel audio playback.

These alternative models offer additional features and expanded capabilities compared to ISD2548SY.

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