Product Feature

   Built-in microphone amplifier signal input system, and with 0 ~ 61dB preamplifier's volume control, can effectively improve the quality of the input speech to improve SNR, to achieve high sensitivity and low noise of the purpose, can be co-ordinated with the 32dB gain of 17.6 ~ 18.8 kHz bandpass filter. reach ultrasonic decoding applications.

   Applications of this product focuses on high computing demand operation of the spectrum can be given for high-end speech recognition / non-specific speaker, a high compression rate voice codecs, the output of high-quality audio recording products, long the voice Memo, language learning machine , and with the power management of mobile devices.

Product Description

 

n 16 bits nDSP.

n Features 40 bits MAC (overflow truncate).

n Internal clock speed 50 MHz/50 MIPS (Tpy. 32 MHz/32 MIPS).

n 256k bits (32k Bytes) OTP-ROM.

n 64k bits (8k Bytes) SRAM.

n Trimmable R/C oscillator (0.1%) for base clock and digital PLL for high speed clock.

n 1 set of V_REF for ADC.

n 1 set of real-time clock (32768 XTAL)  I/O option.

n 1 set of crystal oscillator (2~40 MHz XTAL), I/O option.

n Option 1 I/O for external clock input (2~50 MHz) .

n 16 analog inputs and 1 V_REF selectable for 14bits ADC input source.

n 3 sets of 14 bits ADC, parallel processing ADC inputs.

n 3 sets of 16 bits Timers

n 3 sets of 8/10 bits PWM outputs, I/O configurable.

n 2 sets of OP-AMP, I/O configurable.

n 1 interpolation generator, for higher sound quality (good SNR).

n Built-in microphone preamplifier, configurable 0~61dB (step 1dB) 62 levels of gain.

n 32dB/17.6~18.8 kHz ultra sound filter and amplifier.

n 24 general purpose I/O, 20 of them can be configured to high by LDO or Vcc, 16 of them are interruptable, 16 of them can be touch inputs or counter inputs.

n Voltage selectable LDO (2.6V/2.8V/3.0V/3.2V 100mA).

n 1 LVD (Low Voltage Detect), 4 voltage selectable for detecting.

n 1 LVR (Low Voltage Reset).

n WDT (Watch-Dog Timer).

n 1 SPI (Serial Parallel Interface) 1/2/4 Bits Master/Slave.

n 116 bits ΔΣ Multi-Level DAC.

n 1 10/11 bits PWM DAC.

n 1 amplifier, 16 levels of volume control.

n 1 Class-AB/PWM speaker amplifier, 4 levels of driving sizes.

n Operating Voltage: 2.4V ~ 5.5V (32MHz).

n Standby Current: 2uA.