ISD1750SY

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Recording and Playback
• Characteristics: Non-volatile, Single-Chip Solution
• Package: SOP-28
• Essence: High-Quality Digital Voice Recording and Playback
• Packaging/Quantity: Tape and Reel / 2500 units per reel

Specifications

• Memory Capacity: 2 minutes (maximum) of audio recording
• Sampling Frequency: 8 kHz
• Resolution: 4-bit ADPCM compression
• Operating Voltage: 2.4V to 5.5V
• Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The ISD1750SY has a total of 28 pins. The pin configuration is as follows:

1. VDD: Power Supply
2. VSS: Ground
3. NC: No Connection
4. NC: No Connection
5. NC: No Connection
6. NC: No Connection
7. NC: No Connection
8. NC: No Connection
9. NC: No Connection
10. NC: No Connection
11. NC: No Connection
12. NC: No Connection
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection
17. NC: No Connection
18. NC: No Connection
19. NC: No Connection
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

• Single-chip solution for voice recording and playback
• Non-volatile storage of audio data
• Simple interface for easy integration into various applications
• Low power consumption for extended battery life
• High-quality audio playback with 4-bit ADPCM compression

Advantages and Disadvantages

Advantages

• Compact size and low component count
• Easy to use and integrate into designs
• Non-volatile memory ensures data retention even without power
• High-quality audio playback with low distortion

Disadvantages

• Limited memory capacity (2 minutes maximum)
• Lower sampling frequency compared to some other audio ICs
• Limited resolution due to 4-bit ADPCM compression

Working Principles

The ISD1750SY utilizes non-volatile memory to store audio data in a compressed format. When recording, the analog audio signal is converted to digital using 4-bit ADPCM compression and stored in the internal memory. During playback, the stored data is retrieved and converted back to an analog signal for output.

Detailed Application Field Plans

The ISD1750SY is commonly used in various applications that require voice recording and playback capabilities. Some potential application fields include:

1. Voice recorders and memo devices
2. Toys and interactive products
3. Security systems with voice prompts
4. Automotive electronics for voice guidance
5. Medical devices with audio feedback

Detailed and Complete Alternative Models

1. ISD1760SY: Similar to ISD1750SY but with increased memory capacity (4 minutes maximum).
2. ISD1790SY: Enhanced version with extended features such as voice recognition and multiple audio channels.
3. ISD17120SY: Higher-end model with larger memory capacity (12 minutes maximum) and improved audio quality.

Note: The above alternative models are from the same product family and offer similar functionality with varying specifications.

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