Name: ISD1820 Voice Recording Module With On Board Mic and Speaker
Brand: Generic
SKU: IFT00012-1
Availability: InStock

ISD1820 Voice Recording Module is a complete, easy-to-use voice recording and playback solution featuring an onboard microphone and speaker. This all-in-one module provides 10-20 seconds of high-quality audio recording (depending on sampling rate) with non-volatile storage, making it ideal for DIY projects, educational tools, and voice prompt applications.

Key Features of ISD1820 Module:

- Integrated Solution: Onboard microphone, amplifier, and 0.5W speaker
- Adjustable Recording Time: 10-20 seconds (switchable sampling rate)
- Non-Volatile Storage: Retains recordings without power
- Simple Operation: One-touch record and play functions
- Expandable: External microphone/speaker connections available

Technical Specifications:

- Recording Time: 10-20 seconds (selectable via jumper)
- Sampling Frequency: 6.4kHz (20s) or 8kHz (10s)
- Audio Quality: 12-bit resolution, 6.4-8kHz sampling rate
- Onboard Speaker: 0.5W 8Ω
- Microphone: Built-in electret mic with preamplifier
- Power Supply: 3-5V DC (4.5V recommended)
- Operating Current: 25mA (standby), 150mA (playback)
- Module Dimensions: 42mm x 22mm x 12mm

Module Interface and Controls:

- REC Button: Press and hold to record (red LED lights during recording)
- PLAYE Button: Edge-triggered playback (plays once)
- PLAYL Button: Level-triggered playback (plays while held)
- External Connections:
  - MIC+/-: External microphone input
  - SP+/SP-: External speaker output (up to 1W)
  - VCC/GND: Power supply (3-5V)

Applications:

- DIY Electronics Projects: Voice recorders, greeting cards
- Educational Tools: Language learning devices
- Security Systems: Voice alarm notifications
- Toys and Gadgets: Talking toys, voice prompts
- Access Control: Voice verification systems