AN278
Voice Recorder Circuit based on C8051F410 8051 MCU
Description
Voice Recorder Circuit based on C8051F410 8051 MCU. The 12-bit ADC and DAC allow for reasonable quality sound at a 8 kHz sampling rate, and the hardware Accumulation and Burst Mode features of the ADC provide for further improvements with small processing tradeoffs. The Suspend mode operating feature allows the voice recorder to sleep while idle, saving power in a similar fashion to the traditional 8051 Stop mode, but still allows the recorder to wake and respond to the user without a hardware reset
Associated Parts
| Part Number | Filter Type | Associated Parts | Download |
|---|---|---|---|
Audio Amplifiers | Audio Amp Speaker 1-CH Mono 1.1W Class-AB 8-Pin SOIC T/R | ||
Linear Regulators | LDO Regulator Pos 3.3V 0.05A Automotive 8-Pin SOIC Tube | ||
MOSFETs | Trans MOSFET P-CH 30V 1.4A 3-Pin SOT-23 T/R | ||
Operational Amplifiers - Op Amps | Op Amp Quad Low Voltage Amplifier R-R I/O ±6V/12V 14-Pin SOIC N T/R | ||
Linear Regulators | LDO Regulator Pos 3.3V 0.05A Automotive 8-Pin SOIC Tube | ||
Audio Amplifiers | Audio Amp Speaker 1-CH Mono 1.1W Class-AB 8-Pin SOIC T/R | ||
Audio Amplifiers | Audio Amp Speaker 1-CH Mono 1.1W Class-AB 8-Pin SOIC Tube | ||
Microcontrollers - MCUs | MCU 8-bit 8051 CISC 32KB Flash 3.3V/5V 32-Pin LQFP Tray |
