HLK V20 Kit 2 Smart voice control module

HLK-V20 is the latest high-performance offline speech recognition module, which can be widely used in smart home, various smart small appliances, toys, lamps, industrial, medical, products that need voice control, Such as the Internet of Things, cars, security and lighting.

This module uses a 32-bit RSIC architecture core and adds a DSP instruction set specifically for signal processing and speech recognition, an FPU arithmetic unit that supports floating point operations, and an FFT accelerator.

32-bit RISC core, 240M execution frequency

DSP instruction set support and FPU floating point operation unit

FFT Accelerator: Supports up to 1024 complex FFT/IFFT operation points or 2048 real FFT/IFFT operation points.

Custom voice algorithm operator

Supports 1 analog microphone input

Support for two-channel DAC output

Support 12S input/output

Internal power supply 5V to 3.3V, 3.3V to 1.2V LDO for chip

12 MHz RC clock source and PLL phase locked loop clock source

Set POR (Power on Reset), low voltage detection and watchdog

Support up to 10 GPIO

All GPIO can be configured as external interrupt input and contact source

1 standard SPI Master interface, the highest machine speed is 30 MHz

1 SPI Slave interface with a maximum rate of 30 MHz

1 UART full duplex maximum speed 3Mbps

I2C master/slave controller with a maximum speed of 400 kHz

2 PWM outputs

1 12-bit SAR-ADC sampling rate up to 450 kHz

Custom launch notification

Custom voice wake-up words

Custom voice command words

Custom TTS voice playback

Support 10 words without waking up (no need to wake up, direct recognition of command words)

This module has a large number of system peripherals, including UART/I2C/SPI/PWM/I2S/DAC/GPIO/DMic/AMic

The module has 16 pins including differential input, power amplifier output and serial port.

B8 (I): General purpose input/output

B7 (I/O): General purpose input/output

B6 (I/O): General purpose input/output

A27 (I/O): General purpose I/O

A26 (I/O): General purpose I/O

SPK-(0): Power amplifier differential output terminal P

SPK-(0): N terminal of power amplifier differential output

VCC (PWR): Power supply (3.3V-5V)

GND: GND

B2 (I/O): General purpose input/output

B3 (I/O): General purpose input/output

A25 (I/O): General purpose I/O

MIC-(I): N terminal of differential input MIC1

MIC-(I): P terminal of differential input MIC1

RX (I/O): Uart rx

TX (I/O): Uart tx

Smart houses

toys

Lamps

industrial

medical

Standby power consumption: 5V power supply, average standby power consumption 63mA

Power consumption: 5V power supply, with speaker (8Ω 1W)

Input DC voltage: 3.3V~5V

Working temperature: -20 to +85 degrees Celsius