ISD1820PY voice recording/playback IC
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Description:
The ISD1820PY is a single-chip voice recording and playback IC that provides a simple and cost-effective solution for adding audio recording and playback capabilities to various electronic devices. It integrates an analog front-end, voice processing circuitry, non-volatile memory, and a PWM audio amplifier into a compact package. The ISD1820PY is widely used in applications such as voice recorders, toys, doorbells, alarms, and other devices requiring audio recording and playback functionality.
Key Features:
- Single-chip voice record/playback solution
- Non-volatile storage of recorded messages (up to 8-20 seconds depending on the model)
- 8-bit analog-to-digital converter (ADC) and digital-to-analog converter (DAC)
- On-chip microphone amplifier and speaker driver
- External trigger and playback control inputs
- Low-power consumption during standby mode
- Simple operation with minimal external components
- Built-in audio PWM output for driving a speaker directly
- Package Type: DIP-14
- Recording Time: Up to 8-20 seconds (adjustable)
- Supply Voltage: 2.4V to 5.5V
- Sampling Frequency: 8kHz (nominal)
- Operating Temperature Range: -20°C to +70°C
- Dimensions: Standard DIP-14 package
- Voice Recorders and Memo Devices
- Interactive Toys
- Doorbells and Alarms
- Message Playback Systems
- Automotive Applications (voice prompts)
- Home Automation
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment