ISD2548S
Product Overview
Category
ISD2548S belongs to the category of integrated circuits (ICs).
Use
The ISD2548S IC is primarily used for audio recording and playback applications.
Characteristics
- The IC offers high-quality audio recording and playback capabilities.
- It has a compact size, making it suitable for various electronic devices.
- The ISD2548S provides low power consumption, ensuring efficient operation.
- It supports multiple audio formats, allowing flexibility in usage.
Package
The ISD2548S is available in a standard 28-pin package.
Essence
The essence of the ISD2548S lies in its ability to provide reliable and high-fidelity audio recording and playback functionality.
Packaging/Quantity
The IC is typically packaged in reels or tubes, with quantities varying based on customer requirements.
Specifications
- Supply Voltage: 2.4V - 5.5V
- Operating Temperature Range: -40°C to +85°C
- Audio Sampling Rate: Up to 48 kHz
- Maximum Recording Time: 256 seconds (at 8 kHz sampling rate)
- Maximum Playback Time: 256 seconds (at 8 kHz sampling rate)
- Memory Size: 512 Kbits
Detailed Pin Configuration
The ISD2548S features the following pin configuration:
- VDD - Power supply voltage input
- VSS - Ground reference
- REC - Record control input
- PLAYE - Playback enable control input
- PLAYL - Playback LED output
- SPK+ - Speaker positive terminal
- SPK- - Speaker negative terminal
- MIC+ - Microphone positive terminal
- MIC- - Microphone negative terminal
- OSC - Oscillator input
- XTI - Crystal oscillator input
- XTO - Crystal oscillator output
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
Functional Features
- High-quality audio recording and playback
- Non-volatile storage of audio data
- Low power consumption for extended battery life
- Simple control interface for easy integration
- Built-in speaker driver for direct speaker connection
- External crystal oscillator support for accurate timing
Advantages and Disadvantages
Advantages
- Compact size allows for integration into various electronic devices
- Supports multiple audio formats, providing flexibility in usage
- High-quality audio recording and playback capabilities ensure excellent sound reproduction
- Low power consumption ensures efficient operation and extended battery life
Disadvantages
- Limited maximum recording and playback time (256 seconds at 8 kHz sampling rate)
- Requires an external crystal oscillator for precise timing
Working Principles
The ISD2548S utilizes non-volatile memory to store audio data. When the record control input (REC) is activated, the IC starts recording audio from the connected microphone. The recorded audio is stored in the internal memory. To play back the recorded audio, the playback enable control input (PLAYE) is activated. The IC retrieves the stored audio data and outputs it through the speaker terminals (SPK+ and SPK-). The oscillator input (OSC) and crystal oscillator (XTI and XTO) provide accurate timing for the recording and playback processes.
Detailed Application Field Plans
The ISD2548S finds applications in various fields, including: - Voice recorders - Toys and games with audio playback features - Security systems with voice recording capabilities - Automotive electronics for audio playback - Medical devices requiring audio recording functionality
Detailed and Complete Alternative Models
- ISD2560 - Similar to ISD2548S but with increased memory size (2 Mbits)
- ISD25120 - Offers extended recording and playback time (120 seconds at 8 kHz sampling rate)
- ISD2590 - Provides higher audio sampling rate (up to 90 kHz) for enhanced audio quality
These alternative models offer different specifications and features to cater to specific application requirements.
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10個與ISD2548S在技術方案中應用相關的常見問題與解答
Sure! Here are 10 common questions and answers related to the application of ISD2548S in technical solutions:
Q: What is ISD2548S? A: ISD2548S is a voice record/playback chip commonly used in technical solutions for audio recording and playback applications.
Q: What is the maximum recording time supported by ISD2548S? A: ISD2548S supports a maximum recording time of 48 seconds.
Q: Can ISD2548S be used in battery-powered devices? A: Yes, ISD2548S can be used in battery-powered devices as it has low power consumption.
Q: How is audio data stored in ISD2548S? A: Audio data is stored in non-volatile memory within ISD2548S, ensuring that recordings are retained even when power is disconnected.
Q: Can ISD2548S be used for real-time audio streaming? A: No, ISD2548S is not designed for real-time audio streaming. It is primarily used for short-duration audio recording and playback.
Q: What is the interface used to control ISD2548S? A: ISD2548S can be controlled using a simple serial interface, making it easy to integrate into various technical solutions.
Q: Does ISD2548S support multiple languages or audio formats? A: ISD2548S does not have built-in language or audio format support. It can store and play back any audio data provided to it.
Q: Can ISD2548S be used in industrial environments with high noise levels? A: Yes, ISD2548S can be used in industrial environments as it has good noise immunity and can be integrated with appropriate audio amplification circuits.
Q: Can ISD2548S be used in applications requiring high-quality audio playback? A: ISD2548S is designed for basic audio recording and playback applications and may not provide the highest quality audio output.
Q: Are there any limitations on the number of times a recording can be played back using ISD2548S? A: ISD2548S has a specified endurance rating, typically around 100,000 cycles, after which the chip's performance may degrade.