Special microcontroller for recording and processing audio data Nuvoton production. This microcontroller uses ARM Cortex-M0 core with 145kB APROM and 12kBSRAM. The advantages of this controller is to have many features that are devoted to process signals, such as: DAC, DPWM, PGA, PDMA, and pin for a digital microphone. ADC on this controller is equipped with features Sigma-Delta with 92dB SNR (Signal to Noise Ratio). Plus it features a Programmable Gain Amplifier (PGA) with a maximum gain of up to 61dB, making the processed audio signal is able to be directly connected to the microphone or speaker.
- Packaging LQFP-48
- 16-50Mhz working frequency (built in oscillator)
- Working voltage of 2.5V-5.5V
- Number of i / o 24 I / O
- ARMv6-M architecture (ARM-Cortex M0)
- Flash program memory sizes 145KBytes APROM, able to store 60 seconds of sound 16kbps
- Size 12KBytes volatile data memory SRAM
- The size of non-volatile data memory -
- Adc ADC pin special features (? S ADC, 80dB SNR (Signal to Noise), and Mic Interface)
- Peripheral DPWM (Differential Audio PWM), WDT (Watch Dog Timer), PWM, RTC, LDO (Low Dropout Voltage Regulator)
- Total external interrupt 2 Pin
- The timer / counter 2 x 24-bit timer with 8-bit pre-scaler
- Max speed 50MHz
- ISP programming interface with 4kbytes boot memory (shared with APROM)
- Debugger interface SWD (Serial Wire Debug)
- The interface peripherals UART, SPI, I2C, I2S
- Special Features Audio Analog to Digital Converters, Digital Michrophone interface, PDMA (pheripheral Direct Memory Access), PGA (Programmable Gain Amplifier)
