Tianhui Micro Agent Mountain View AP8264A2 Applicable DSP solution can burn USB sound card USB microphone

AP8264A2 High-Performance 32-bit Audio Application Processor The AP82 series audio processor is a new generation of SoC platform products designed for audio applications, suitable for traditional audio systems, emerging Bluetooth or WiFi wireless audio products, Sound Bar and mixer markets. The processor fully considers the characteristics of the audio field in the overall architecture and system composition, and supports multiple decoding formats such as MP3, WMA, WAV, FLAC, APE, AAC and MP3 encoding. At the same time, it provides rich acoustic and sound processing functions such as echo cancellation (AEC), magic bass (VB), 3D surround and Parametric EQ. And you can flexibly choose program Flash chips of different capacities to achieve super high cost performance of the entire system design.

Core and storage

➢ High-performance 32-bit RISC core, maximum frequency 240MHz,

Support DSP instructions, integrated FPU supports floating point operations

➢ FFT accelerator: supports up to 1024-point complex FFT/IFFT operations, or 2048-point real FFT/IFFT operations

➢ Integrated 224KB SRAM (including 4KB TCM), 32KB (I-Cache), 32KB (D-Cache)

➢ Built-in 16Mbit SPI FLASH to store code and data

➢ Support external PSRAM memory

➢ Built-in EFUSE configuration memory

➢ 2-wire SDP (Serial Debug Port) debugging port, with breakpoint debugging and code tracing capabilities

➢ 40 interrupt vectors

➢ 4 levels of interrupt priority

Power, Clock, and Reset

➢ DC 3.3V~5V power supply @ LDOIN

➢ Built-in (5V to 3.3V, 3.3V to 1.2V) LDO to power the chip

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

➢ Support 12~40MHz crystal or external clock (≤40MHz) direct input @ GPIO_B4

➢ Support crystal-free operation

➢ Built-in POR (Power on Reset), LVD (Low Voltage Detection) and Watchdog

➢ Multiple low power consumption modes:

 CPU frequency reduction

 System frequency reduction

 Sleep

 Deep sleep

Audio

➢ 4-channel Audio-ADC, SNR≥94dB

➢ ADC sampling rate supports 8kHz / 11.0125kHz / 12kHz / 16kHz / 22.025kHz / 24kHz / 32kHz / 44.1kHz / 48kHz

➢ Supports up to 4 digital microphones or 4 analog microphones, and the analog microphone has AGC (automatic gain control) function

➢ ADC line-in supports single-ended input or differential input

➢ 3-channel DAC, SNR≥105dB

➢ DAC sampling rate supports 8kHz / 11.0125kHz / 12kHz / 16kHz / 22.025kHz / 24kHz / 32kHz / 44.1kHz / 48kHz

➢ Support direct drive 16Ω or 32Ω headphones, maximum output power 40mW

➢ 2 full-duplex I2S, 8~192kHz sampling rate, maximum effective bit width 32bits

➢ 1 S/PDIF interface, supports receiving or sending (half-duplex), supports HDMI audio and ARC

Peripherals

➢ 4 basic timers (TIM1, TIM2, TIM5, TIM6)

➢ 2 general purpose timers (TIM3, TIM4) with PWM and PWC functions

➢ Up to 41 GPIOs

➢ All GPIOs can be configured as external interrupt inputs and wake-up sources

➢ GPIO can be configured with pull-up, pull-down, high impedance, pull-down current source and other functions

➢ USB 2.0 full speed (OTG) controller, supports 6 endpoints, built-in PHY

➢ 1 standard SPI Master interface @ max. 30MHz

➢ 1 SPI Master interface supporting external PSRAM: @max. 60MHz

➢ 1 SPI Slave interface @ max.30MHz

➢ 2 SDIO @ max.30MHz

➢ 2 full-duplex UARTs @ max.3Mbps, support flow control

➢ 1 half-duplex UART supporting ISO7816

➢ 1 I2C master/slave controller @ max.400kHz

➢ 1 12-bit SAR-ADC (successive approximation ADC) @max. 450KHz sampling rate, 13 external IO channels, 2 internal voltage sampling channels

DMA

➢ 9-channel DMA, full memory addressing, can be assigned to any peripheral (except OTG and I2C)

➢ Unique automatic transmission and capture mechanism between memory and IO (DMA-GPIO for short), which can simulate various communication and control timing

Firmware burning and protection

➢ Support debugger, dedicated burner or Flash Burner Lite to burn Flash

➢ Bootloader built-in dual-bank upgrade mechanism

➢ Support 32-bit user key to encrypt firmware

➢ Chip 64-bit unique ID

Application Areas

USB sound cardUSB noise cancelling headset

Package and Operating Temperature

• ØLQFP64 7x7

• ØAmbient operating temperature: -40℃ to 85℃

AP8264A2 structure diagram